<?xml version="1.0" encoding="ISO-8859-1"?>

<HSTProposal
   Phase1ID="602"
   Phase2ID="10102"
   Phase="Phase II"
   AptVersion="Version 13.2 ">
   <!--**********************************************************************************************************************-->
   <!--This file is automatically generated and should not be edited by hand. Editing this file directly is at your own risk.-->
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            NotificationAddress="mshowalter@mail.arc.nasa.gov">
            
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            <SubmissionComments>See "Additional Comments" and various "On Hold Comments" for an explanation of how we have
expressed a number of alternative possible timings for our two visits in August.</SubmissionComments>
            
            <SubmissionLog>----- Submission 1 (Fri May 14 05:41:07 GMT 2004) -----
</SubmissionLog>
            
            <Phase2DiagnosticJustification>I have executed "Run All Tools" and there are no diagnostics, so I don't understand this
error message. Perhaps it has to do with the use of an "Available" option (specifically,
the HRC CLEAR filter) which requires the approval of our Program Coordinator. Use of
the CLEAR filter was a stated intention in our approved Phase I proposal and is
necessary to meet our observing goals.</Phase2DiagnosticJustification>
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            <SubmissionComments />
            
            <SubmissionLog>                        Assigned ID: 602
----- Submission 1 (Fri Jan 23 21:11:54 GMT 2004) -----
  Phase I Proposal 602 (Uranus_2004) successfully submitted.











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   <ProposalInformation
      Category="GO"
      PureParallelProposal="false"
      Cycle="13">
      
      <Title>Rings of Uranus: Dynamics, Particle Properties and Shepherding Moons</Title>
      
      <Abstract>Last year, our Uranian ring and moon observing program (GO-9823) resulted in the discovery of two moons, S/2003 U 1 and S/2003 U 2. We imaged two additional small moons, Ophelia and S/1986 U 10, that had not been seen since the Voyager encounter of 1986. Furthermore, our data show faint arcs and clumps orbiting within the rings, which were not seen by Voyager and are completely unexpected. We employed several  "tricks" of the HRC to achieve this remarkable senstivity; specifically, we used the CLEAR filter and oriented the images so that the planet, though vastly overexposed, did not interfere with the ring/moon region of interest to us. This allowed us to detect 25th-magnitude moons circling a 5th-magnitude planet. Now we propose to complete the task by carrying out a comprehensive survey of the system using the same techniques. Our goals are to recover the moons, better discern their orbital elements, and learn more about the dynamics of the ring clumps. In particular, we need to (1) understand the long-term stability of S/2003 U 2, which orbits perilously close to the larger moon Belinda; (2) complete our search for moons, which was only ~ 50% complete last year, and (3) better understand how the clumps and arcs within the ring system might relate to nearby "shepherding" moons, seen or unseen. This program is now a merger of two programs 10275 and 10102. The former is our new program, whereas the latter is the second year of our three-year program to study the light scattering properties of Uranus's rings as they approach their edge-on presentation in 2007.</Abstract>
      
      <PrincipalInvestigator
         Honorific="Dr."
         FirstName="Mark"
         MiddleInitial="R."
         LastName="Showalter"
         ESAMember="false">
         
         <Address
            Institution="NASA Ames Research Center"
            USState="CA"
            Country="USA" />
      </PrincipalInvestigator>
      
      <CoInvestigator
         Honorific="Dr."
         FirstName="Jack"
         MiddleInitial="J."
         LastName="Lissauer"
         ESAMember="false"
         AdminUSPI="false"
         Contact="false">
         
         <Address
            Institution="NASA Ames Research Center"
            USState="CA"
            Country="USA" />
      </CoInvestigator>
      
      <Questions>
         
         <Phase2Questions>
            
            <ObservingDescription>(1) Moon Search: Two visits near opposition (August 27, 2004, 18:30 UT), each consiting of five consecutive HST orbits, will be used to complete our search for tiny, undiscovered moons in the vicinity of Uranus's rings, and to recover and refine the orbits of the moons discovered last year. Each orbit will include eight very long (250-s) exposures through the CLEAR filter.  Although the planet will be substantially overexposed, the image is oriented such that saturated pixels bleed vertically and do not interfere with the rings and moons oriented horizontally. In the middle of each orbit we will include one or two brief, unsaturated images through broadband filters for ring and satellite photometry. Timing between visits is constrained by the requirements that (a) one visit falls near opposition (within 48 hours) for optimal sensitivity, (b) the visits fall 5-8 days apart to provide a suitable time baseline for orbit determinations, and (c) the visits are separated by a half-integral number of orbits of S/2003 U 2. This third constraint allows us to measure S/2003 U 2's eccentricity by catching it on both sides of its orbit. In this plan we list 12 different possible pairs of visit windows, indicated as "on hold", to provide maximal flexibility for scheduling. (2) Ring Photometry: We will center on Uranus and expose long enough to approach (but generally not reach) saturation of the planetary disk. Unsaturated exposure times are 260 s (F330W), 15 s (F475W), 10 s (F606W), and 65 s (F814W). When practical, these observations are embedded in a dither pattern that shifts them by 2.5 pixels horizontally along the HRC pixel grid. The ring ansa will be aligned with this axis, so the fractional shift will improve our radial resolution on the rings. A few long, CLEAR exposure images are included to recover and track tiny moons. Visits are timed to avoid the diffraction spikes from the largest Uranian moons from entering the ring/moon region. In this cycle, our only visit exclusively for photometry will occur in June 2005, after Uranus has reappeared from behind the Sun, at its highest phase angle (2.9 degrees) but open to Earth by only 7 degrees.</ObservingDescription>
            
            <RealtimeJustification>None.</RealtimeJustification>
            
            <CalibrationJustification>None.</CalibrationJustification>
            
            <AdditionalComments>This Phase II proposal is actually a merger of two different programs, 10102 and 10275.  The former is the second year of our three-year program "Rings of Uranus: Dynamics, Particle Properties and Shepherding Moons," focusing mainly on Uranian ring photometry, which was allocated 2 HST orbits in Cycle 13. The latter is our new, supplemental proposal, "The Moons, Rings and Arcs of Uranus: Discovery and Dynamics." This program was granted 9 additional HST orbits to detect and study the tiniest, previously unknown moons of Uranus, which we discovered in last year's program. Tony Roman has arranged for these two programs to be merged and treated as a single, 11-orbit program during Cycle 13.

Note that we have two visits planned in August, each consisting of five consecutive orbits.  These visits cannot be interrupted by the SAA because that would leave a gap in our orbital search for Uranian moons.  Also, there are very strict timing constraints on the interval between our two visits, dictated by our need to measure the eccentricity of S/2003 U 2, a moon that orbits perilously close to Belinda. We have provided twelve alternative pairs of visits that meet our constraints: 10+11, 10+12, 10+13, 10+14, 10+15, 10+16, A0+A1, B0+B1, C0+C1, D0+D1, E0+E1, and F0+F1. All of these visits except 10 are currently designated ON HOLD, per recommendations by Tony Roman. You will note that the absolute timing of each pair is rather free (+/- 48 hours) but the interval between the orbits is more constrained (+/- 1.2 hours). We hope that this number of alternatives will ensure that at least one pair is schedulable. If we can have our preference among these options, it is for the opposition visit (10, A1, B1, C1, D1, E1, or F1) to fall as close as possible to the moment of opposition (27-Aug-2004 18:30:00) when phase angle is smallest.  Beyond that, the pairs we would most prefer are 10+13, 10+14, C0+C1 or D0+D1 because they provide the optimal time baseline between visits.</AdditionalComments>
         </Phase2Questions>
      </Questions>
      
      <Orbits
         ThisCyclePrimary="9"
         ThisCycleParallel="0"
         NextCyclePrimary="0"
         NextCycleParallel="0"
         AfterNextPrimary="0"
         AfterNextParallel="0" />
      
      <Phase1ProposalInformation
         TotalTargets="1"
         Attachment="/Users/mark/Desktop/HST 2004-Uranus/Uranus_2004.pdf">
         
         <ScientificCategory>SOLAR SYSTEM</ScientificCategory>
         
         <ScientificKeyword1
            Keyword="RINGS AROUND PLANETS" />
         
         <ScientificKeyword2
            Keyword="PLANETARY SATELLITES" />
         
         <ProprietaryPeriod>12</ProprietaryPeriod>
         
         <CalibProp>false</CalibProp>
         
         <Treasury>false</Treasury>
         
         <Legacy>false</Legacy>
         
         <Theory>false</Theory>
         
         <LargeProgram>false</LargeProgram>
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      <Phase2ProposalInformation
         PCFlag="false">
         
         <Availability>AVAILABLE</Availability>
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   <Targets>
      
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         Name="URANUS-CENTER"
         Number="1">
         
         <PrimaryCategory>SOLAR SYSTEM</PrimaryCategory>
         
         <PrimaryDescription />
         
         <Comments>Center of Uranus</Comments>
         
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               Band="V"
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         <Keyword>PLANET</Keyword>
         
         <Description>Uranus</Description>
         
         <Level1>
            
            <Text>STD=URANUS</Text>
            
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               Name="URANUS" />
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         <Windows>
            
            <Text />
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      <SolarSystemTarget
         Name="URANUS-NO-MOONS-NEARBY"
         Number="2">
         
         <PrimaryCategory>SOLAR SYSTEM</PrimaryCategory>
         
         <PrimaryDescription />
         
         <Comments>Ariel, Umbriel, Titania and Oberon are required to be more than 88,000 km from the center of Uranus in projected distance along the ring ansa.  This guarantees that any vertical diffraction spike falls beyond the orbit of Puck.</Comments>
         
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            <BroadBandMagnitude
               Band="V"
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         </Fluxes>
         
         <Keyword>PLANET</Keyword>
         
         <Description>Uranus</Description>
         
         <Level1>
            
            <Text>STD=URANUS</Text>
            
            <STD
               Name="URANUS" />
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         <Windows>
            
            <Text>NOT OLG OF ARIEL BETWEEN 0.0 27.4,
NOT OLG OF ARIEL BETWEEN 155.3 204.7,
NOT OLG OF ARIEL BETWEEN 335.3 360.0,
NOT OLG OF UMBRIEL BETWEEN 0.0 19.4,
NOT OLG OF UMBRIEL BETWEEN 160.6 199.4,
NOT OLG OF UMBRIEL BETWEEN 340.6 360.0,
NOT OLG OF TITANIA BETWEEN 0.0 11.7,
NOT OLG OF TITANIA BETWEEN 168.3 191.7,
NOT OLG OF TITANIA BETWEEN 348.3 360.0,
NOT OLG OF OBERON BETWEEN 0.0 8.7,
NOT OLG OF OBERON BETWEEN 171.3 188.7,
NOT OLG OF OBERON BETWEEN 351.3 360.0</Text>
            
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               Object1="TITANIA">
               
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         TargetName="URANUS-CENTER"
         Instrument="ACS"
         Number="1"
         NumberOfOrbits="9"
         NumberOfIterations="1"
         TotalOrbits="9"
         PureParallel="false"
         CoordinatedParallel="false"
         TargetOfOpportunity="false"
         CVZ="false"
         Duplication="true"
         Shadow="false"
         LowSky="false"
         SameOrient="false">
         
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            <Configuration>
               
               <Config>ACS/HRC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <SpectralElement>CLEAR1S</SpectralElement>
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            <Configuration>
               
               <Config>ACS/HRC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
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               <Config>ACS/HRC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
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               <Config>ACS/HRC</Config>
               
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               <Coronography>No</Coronography>
               
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               <Config>ACS/HRC</Config>
               
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         <Purpose>DITHER</Purpose>
         
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         <PointSpacing>0.07105</PointSpacing>
         
         <Comments>This is a single horizontal shift along the HRC pixel grid of 2.5 pixels. It should enable finer radial resolution along the ring ansa, which is also aligned with the pixel grid.</Comments>
         
         <SubpatternPatternType>LINE</SubpatternPatternType>
         
         <LineSpacing />
         
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         Status="implementation"
         Schedulability="100">
         
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         <Comments>Deep search for moons within 48 hours of opposition (phase angle &lt; 0.11 degrees).  Note that all five orbits must be consecutive to provide complete orbital coverage.  Rings oriented along the HRC X-axis. For CLEAR-filter images, Uranus is intentionally overexposed; blooming will be along the Y-axis and therefore perpendicular to the rings.  Standard ring photometry images in additional filters, some overexposed but most not, are carried out in the middle of each orbit.</Comments>
         
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               <MinDur />
               
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               <InstrumentParameters
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               <SubExposures>
                  
                  <SubExposure
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                     OrbitNumber="2" />
                  
                  <SubExposure
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                     OrbitNumber="2" />
                  
                  <SubExposure
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                     OrbitNumber="2" />
                  
                  <SubExposure
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            </Exposure>
            
            <Exposure
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               <MaxDur />
               
               <MinDur />
               
               <Comments />
               
               <InstrumentParameters
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               <SubExposures>
                  
                  <SubExposure
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            </Exposure>
            
            <Exposure
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               NewObsetFullAcq="false"
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               <MaxDur />
               
               <MinDur />
               
               <InstrumentParameters
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               <SubExposures>
                  
                  <SubExposure
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               Label="CLEAR, 250 sec x 4"
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               <MinDur />
               
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               <SubExposures>
                  
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                     OrbitNumber="2" />
                  
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               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
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               <MinDur />
               
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               NewObsetFullAcq="false"
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               <MaxDur />
               
               <MinDur />
               
               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
                  <SubExposure
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            <Exposure
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               TargetName="URANUS-CENTER"
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               NewObsetFullAcq="false"
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               <MaxDur />
               
               <MinDur />
               
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               <InstrumentParameters
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         <ExposureGroup
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            <Exposure
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               Label="F330W, 230 sec"
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               <InstrumentParameters
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            <Exposure
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               Label="CLEAR, 250 sec x 4"
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         <ExposureGroup
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               Label="CLEAR, 250 sec x 4"
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            <Exposure
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               Label="F606W, 45 sec"
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               <MaxDur />
               
               <MinDur />
               
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               <InstrumentParameters
                  CR-SPLIT="NO" />
               
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                  <SubExposure
                     OrbitNumber="5" />
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            </Exposure>
            
            <Exposure
               Number="17"
               Label="F814W, 60 sec"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="F814W"
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               TimePerExposure="60.0"
               RealtimeAnalysis="false"
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               NewObsetFullAcq="false"
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               <MaxDur />
               
               <MinDur />
               
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               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
                  <SubExposure
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            </Exposure>
            
            <Exposure
               Number="18"
               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
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               Aperture="HRC-FIX"
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               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <Comments />
               
               <InstrumentParameters
                  CR-SPLIT="4" />
               
               <SubExposures>
                  
                  <SubExposure
                     SplitNumber="1"
                     OrbitNumber="5" />
                  
                  <SubExposure
                     SplitNumber="2"
                     OrbitNumber="5" />
                  
                  <SubExposure
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                  <SubExposure
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                     OrbitNumber="5" />
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      </Visit>
      
      <Visit
         Number="11"
         Schedulability="100">
         
         <ToolData>
            
            <ToolDataItem
               Key="OpVisitCacheFile">
               
               <OpToolDataString>
                  
                  <Value>/Volumes/Data/Mark/Work/Uranus/Cycle 13 Phase II/Uranus_2004.apt/OP-cache/Uranus_2004-v11.xml</Value>
               </OpToolDataString>
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            <ToolDataItem
               Key="OpTimeStamp">
               
               <OpToolDataDate>
                  
                  <Time>1084401902670</Time>
               </OpToolDataDate>
            </ToolDataItem>
         </ToolData>
         
         <Comments>Deep search for moons, falling after Visit 10 (opposition) by 8.5 orbits of S/2003 U 2. We need to capture this moon on both sides of its orbit in order to measure its eccentricity.</Comments>
         
         <TicData>
            
            <TicFileString>
(Tic-Visit
 :proposal-id 10102
 :visit-id "11"
 :proposal-version -1
 :trans-version "20040225"
 :date "12-May-2004 15:44:10.0"
 :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
                 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
 :number-of-orbits 5
 :saa-model "27"
 :si-bright-earth-limb-angle 20.0
 :data-volume 883280
 :tdrss-contact-duration 0
 )

(Tic-Obset
 :proposal-id 10102
 :visit-id "11"
 :obset-id "11"
 :pcs-mode "FGS"
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "11"
 :orbit-number 1
 :pcs-time 365
 :si-vis-utilization 2635
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "11"
 :orbit-number 2
 :pcs-time 300
 :si-vis-utilization 2700
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "11"
 :orbit-number 3
 :pcs-time 300
 :si-vis-utilization 2700
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "11"
 :orbit-number 4
 :pcs-time 300
 :si-vis-utilization 2698
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "11"
 :orbit-number 5
 :pcs-time 300
 :si-vis-utilization 2700
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )
</TicFileString>
            
            <TicDataCurrent>true</TicDataCurrent>
         </TicData>
         
         <ToolData>
            
            <ToolDataItem
               Key="OpVisitCacheFile">
               
               <OpToolDataString>
                  
                  <Value>/Volumes/Data/Mark/Work/Uranus/Cycle 13 Phase II/Uranus_2004.apt/OP-cache/Uranus_2004-v11.xml</Value>
               </OpToolDataString>
            </ToolDataItem>
            
            <ToolDataItem
               Key="OpTimeStamp">
               
               <OpToolDataDate>
                  
                  <Time>1084401902670</Time>
               </OpToolDataDate>
            </ToolDataItem>
         </ToolData>
         
         <GuidingTolerance>
            
            <Angle />
         </GuidingTolerance>
         
         <Orient>
            
            <From
               Degrees="69.0" />
            
            <To
               Degrees="73.0" />
         </Orient>
         
         <Orient>
            
            <From
               Degrees="249.0" />
            
            <To
               Degrees="253.0" />
         </Orient>
         
         <AfterVisit
            Visit="10">
            
            <From
               Days="5.12" />
            
            <To
               Days="5.22" />
         </AfterVisit>
         
         <OnHold
            OnHold="true" />
         
         <OnHoldComments>Schedule any one of these pairs of visits: 10+11, 10+12, 10+13, 10+14, 10+15, 10+16, A0+A1, B0+B1, C0+C1, D0+D1, E0+E1, F0+F1. This set of options expresses the requirement that one visit (10, A1, B1, C1, D1, E1, or F1) falls within 48 hours of opposition (18:00 UT on 27 August) and the other falls either before or after it by a half-integral number of orbits of the moon S/2003 U 2. This cumbersome set of options is necessary because APT provides an "After Visit" clause but not a "Before Visit" clause (and "After Visit" doesn't accept negative numbers).</OnHoldComments>
         
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               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="CLEAR"
               NumberOfIterations="1"
               TimePerExposure="1000.0"
               RealtimeAnalysis="false"
               RequiresUplink="false"
               Expand="false"
               LowSky="false"
               Shadow="false"
               NewAlignment="false"
               NewObset="false"
               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <Comments />
               
               <InstrumentParameters
                  CR-SPLIT="4" />
               
               <SubExposures>
                  
                  <SubExposure
                     SplitNumber="1"
                     OrbitNumber="1" />
                  
                  <SubExposure
                     SplitNumber="2"
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                  <SubExposure
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                  <SubExposure
                     SplitNumber="4"
                     OrbitNumber="1" />
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            </Exposure>
            
            <Exposure
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               Label="F814W, 60 sec"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="F814W"
               NumberOfIterations="1"
               TimePerExposure="60.0"
               RealtimeAnalysis="false"
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               Expand="false"
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               NewObsetFullAcq="false"
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               <MinDur />
               
               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
                  <SubExposure
                     OrbitNumber="1" />
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            </Exposure>
            
            <Exposure
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               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
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         <ExposureGroup
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               Label="CLEAR, 250 sec x 4"
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               RealtimeAnalysis="false"
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               NewObsetFullAcq="false"
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               <MaxDur />
               
               <MinDur />
               
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                  CR-SPLIT="4" />
               
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                  <SubExposure
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            </Exposure>
            
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                  CR-SPLIT="NO" />
               
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                  <SubExposure
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            </Exposure>
            
            <Exposure
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               <InstrumentParameters
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               <SubExposures>
                  
                  <SubExposure
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            <Exposure
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               <MinDur />
               
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               <InstrumentParameters
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         <ExposureGroup
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               Label="CLEAR, 250 sec x 4"
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               <InstrumentParameters
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               <SubExposures>
                  
                  <SubExposure
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            <Exposure
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         <ExposureGroup
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            <Exposure
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               Label="F330W, 230 sec"
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         <ExposureGroup
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            <Exposure
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               Label="F606W, 45 sec"
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               <MinDur />
               
               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
                  <SubExposure
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            <Exposure
               Number="17"
               Label="F814W, 60 sec"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="F814W"
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               TimePerExposure="60.0"
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               <MinDur />
               
               <InstrumentParameters
                  CR-SPLIT="NO" />
               
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                  <SubExposure
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            <Exposure
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               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
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               TimePerExposure="1000.0"
               RealtimeAnalysis="false"
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               <MaxDur />
               
               <MinDur />
               
               <InstrumentParameters
                  CR-SPLIT="4" />
               
               <SubExposures>
                  
                  <SubExposure
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                     OrbitNumber="5" />
                  
                  <SubExposure
                     SplitNumber="2"
                     OrbitNumber="5" />
                  
                  <SubExposure
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                  <SubExposure
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         </ExposureGroup>
      </Visit>
      
      <Visit
         Number="12"
         Status="implementation"
         Schedulability="100">
         
         <ToolData>
            
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                  <Value>/Volumes/Data/Mark/Work/Uranus/Cycle 13 Phase II/Uranus_2004.apt/OP-cache/Uranus_2004-v12.xml</Value>
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            </ToolDataItem>
            
            <ToolDataItem
               Key="OpTimeStamp">
               
               <OpToolDataDate>
                  
                  <Time>1084402219221</Time>
               </OpToolDataDate>
            </ToolDataItem>
         </ToolData>
         
         <Comments>Deep search for moons, falling after Visit 10 (opposition) by 9.5 orbits of S/2003 U 2.</Comments>
         
         <TicData>
            
            <TicFileString>
(Tic-Visit
 :proposal-id 10102
 :visit-id "12"
 :proposal-version -1
 :trans-version "20040225"
 :date "12-May-2004 15:49:23.0"
 :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
                 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
 :number-of-orbits 5
 :saa-model "27"
 :si-bright-earth-limb-angle 20.0
 :data-volume 883280
 :tdrss-contact-duration 0
 )

(Tic-Obset
 :proposal-id 10102
 :visit-id "12"
 :obset-id "12"
 :pcs-mode "FGS"
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "12"
 :orbit-number 1
 :pcs-time 365
 :si-vis-utilization 2635
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "12"
 :orbit-number 2
 :pcs-time 300
 :si-vis-utilization 2700
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "12"
 :orbit-number 3
 :pcs-time 300
 :si-vis-utilization 2700
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "12"
 :orbit-number 4
 :pcs-time 300
 :si-vis-utilization 2698
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "12"
 :orbit-number 5
 :pcs-time 300
 :si-vis-utilization 2700
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )
</TicFileString>
            
            <TicDataCurrent>true</TicDataCurrent>
         </TicData>
         
         <ToolData>
            
            <ToolDataItem
               Key="OpVisitCacheFile">
               
               <OpToolDataString>
                  
                  <Value>/Volumes/Data/Mark/Work/Uranus/Cycle 13 Phase II/Uranus_2004.apt/OP-cache/Uranus_2004-v12.xml</Value>
               </OpToolDataString>
            </ToolDataItem>
            
            <ToolDataItem
               Key="OpTimeStamp">
               
               <OpToolDataDate>
                  
                  <Time>1084402219221</Time>
               </OpToolDataDate>
            </ToolDataItem>
         </ToolData>
         
         <GuidingTolerance>
            
            <Angle />
         </GuidingTolerance>
         
         <Orient>
            
            <From
               Degrees="69.0" />
            
            <To
               Degrees="73.0" />
         </Orient>
         
         <Orient>
            
            <From
               Degrees="249.0" />
            
            <To
               Degrees="253.0" />
         </Orient>
         
         <AfterVisit
            Visit="10">
            
            <From
               Days="5.73" />
            
            <To
               Days="5.83" />
         </AfterVisit>
         
         <OnHold
            OnHold="true" />
         
         <OnHoldComments>Schedule any one of these pairs of visits: 10+11, 10+12, 10+13, 10+14, 10+15, 10+16, A0+A1, B0+B1, C0+C1, D0+D1, E0+E1, F0+F1. This set of options expresses the requirement that one visit (10, A1, B1, C1, D1, E1, or F1) falls within 48 hours of opposition (18:00 UT on 27 August) and the other falls either before or after it by a half-integral number of orbits of the moon S/2003 U 2. This cumbersome set of options is necessary because APT provides an "After Visit" clause but not a "Before Visit" clause (and "After Visit" doesn't accept negative numbers).</OnHoldComments>
         
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               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="CLEAR"
               NumberOfIterations="1"
               TimePerExposure="1000.0"
               RealtimeAnalysis="false"
               RequiresUplink="false"
               Expand="false"
               LowSky="false"
               Shadow="false"
               NewAlignment="false"
               NewObset="false"
               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <InstrumentParameters
                  CR-SPLIT="4" />
               
               <SubExposures>
                  
                  <SubExposure
                     SplitNumber="1"
                     OrbitNumber="1" />
                  
                  <SubExposure
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                     OrbitNumber="1" />
                  
                  <SubExposure
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                  <SubExposure
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            </Exposure>
            
            <Exposure
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               Label="F814W, 60 sec"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
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               Aperture="HRC-FIX"
               SpElement="F814W"
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               TimePerExposure="60.0"
               RealtimeAnalysis="false"
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               <MinDur />
               
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               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
                  <SubExposure
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            </Exposure>
            
            <Exposure
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                  <SubExposure
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         <ExposureGroup
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               RealtimeAnalysis="false"
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               NewObsetFullAcq="false"
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               <MaxDur />
               
               <MinDur />
               
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               <InstrumentParameters
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                  <SubExposure
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            </Exposure>
            
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               <InstrumentParameters
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                  <SubExposure
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            </Exposure>
            
            <Exposure
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                  CR-SPLIT="NO" />
               
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            <Exposure
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         <ExposureGroup
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               <InstrumentParameters
                  CR-SPLIT="NO" />
               
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                  <SubExposure
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               SpElement="F475W"
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               <MinDur />
               
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         <ExposureGroup
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               Label="CLEAR, 250 sec x 4"
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            <Exposure
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               Label="F330W, 230 sec"
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         <ExposureGroup
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               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
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               Aperture="HRC-FIX"
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            <Exposure
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               <MinDur />
               
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               <InstrumentParameters
                  CR-SPLIT="NO" />
               
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                  <SubExposure
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            <Exposure
               Number="17"
               Label="F814W, 60 sec"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="F814W"
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               TimePerExposure="60.0"
               RealtimeAnalysis="false"
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               Expand="false"
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               <MinDur />
               
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               <InstrumentParameters
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                  <SubExposure
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            <Exposure
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               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
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               RealtimeAnalysis="false"
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               <InstrumentParameters
                  CR-SPLIT="4" />
               
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                  <SubExposure
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      </Visit>
      
      <Visit
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         Schedulability="100">
         
         <ToolData>
            
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                  <Value>/Volumes/Data/Mark/Work/Uranus/Cycle 13 Phase II/Uranus_2004.apt/OP-cache/Uranus_2004-v13.xml</Value>
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               <OpToolDataDate>
                  
                  <Time>1084402477124</Time>
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         <Comments>Deep search for moons, falling after Visit 10 (opposition) by 10.5 orbits of S/2003 U 2.</Comments>
         
         <TicData>
            
            <TicFileString>
(Tic-Visit
 :proposal-id 10102
 :visit-id "13"
 :proposal-version -1
 :trans-version "20040225"
 :date "12-May-2004 15:53:53.0"
 :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
                 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
 :number-of-orbits 5
 :saa-model "27"
 :si-bright-earth-limb-angle 20.0
 :data-volume 883280
 :tdrss-contact-duration 0
 )

(Tic-Obset
 :proposal-id 10102
 :visit-id "13"
 :obset-id "13"
 :pcs-mode "FGS"
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "13"
 :orbit-number 1
 :pcs-time 365
 :si-vis-utilization 2635
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "13"
 :orbit-number 2
 :pcs-time 300
 :si-vis-utilization 2700
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "13"
 :orbit-number 3
 :pcs-time 300
 :si-vis-utilization 2700
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "13"
 :orbit-number 4
 :pcs-time 300
 :si-vis-utilization 2698
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "13"
 :orbit-number 5
 :pcs-time 300
 :si-vis-utilization 2700
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )
</TicFileString>
            
            <TicDataCurrent>true</TicDataCurrent>
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         <ToolData>
            
            <ToolDataItem
               Key="OpVisitCacheFile">
               
               <OpToolDataString>
                  
                  <Value>/Volumes/Data/Mark/Work/Uranus/Cycle 13 Phase II/Uranus_2004.apt/OP-cache/Uranus_2004-v13.xml</Value>
               </OpToolDataString>
            </ToolDataItem>
            
            <ToolDataItem
               Key="OpTimeStamp">
               
               <OpToolDataDate>
                  
                  <Time>1084402477124</Time>
               </OpToolDataDate>
            </ToolDataItem>
         </ToolData>
         
         <GuidingTolerance>
            
            <Angle />
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         <Orient>
            
            <From
               Degrees="69.0" />
            
            <To
               Degrees="73.0" />
         </Orient>
         
         <Orient>
            
            <From
               Degrees="249.0" />
            
            <To
               Degrees="253.0" />
         </Orient>
         
         <AfterVisit
            Visit="10">
            
            <From
               Days="6.34" />
            
            <To
               Days="6.44" />
         </AfterVisit>
         
         <OnHold
            OnHold="true" />
         
         <OnHoldComments>Schedule any one of these pairs of visits: 10+11, 10+12, 10+13, 10+14, 10+15, 10+16, A0+A1, B0+B1, C0+C1, D0+D1, E0+E1, F0+F1. This set of options expresses the requirement that one visit (10, A1, B1, C1, D1, E1, or F1) falls within 48 hours of opposition (18:00 UT on 27 August) and the other falls either before or after it by a half-integral number of orbits of the moon S/2003 U 2. This cumbersome set of options is necessary because APT provides an "After Visit" clause but not a "Before Visit" clause (and "After Visit" doesn't accept negative numbers).</OnHoldComments>
         
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               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="CLEAR"
               NumberOfIterations="1"
               TimePerExposure="1000.0"
               RealtimeAnalysis="false"
               RequiresUplink="false"
               Expand="false"
               LowSky="false"
               Shadow="false"
               NewAlignment="false"
               NewObset="false"
               NewObsetFullAcq="false"
               SpecialCommand="false">
               
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               <MinDur />
               
               <Comments />
               
               <InstrumentParameters
                  CR-SPLIT="4" />
               
               <SubExposures>
                  
                  <SubExposure
                     SplitNumber="1"
                     OrbitNumber="1" />
                  
                  <SubExposure
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                  <SubExposure
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                     OrbitNumber="1" />
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            </Exposure>
            
            <Exposure
               Number="2"
               Label="F814W, 60 sec"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="F814W"
               NumberOfIterations="1"
               TimePerExposure="60.0"
               RealtimeAnalysis="false"
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               Expand="false"
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               NewObsetFullAcq="false"
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               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
                  <SubExposure
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            </Exposure>
            
            <Exposure
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               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
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               Label="CLEAR, 250 sec x 4"
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               <MinDur />
               
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                  CR-SPLIT="4" />
               
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               <MinDur />
               
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                  CR-SPLIT="NO" />
               
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            <Exposure
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               Label="F606W, 10 sec"
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                  CR-SPLIT="NO" />
               
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                  <SubExposure
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               Label="CLEAR, 250 sec x 4"
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               <InstrumentParameters
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         <ExposureGroup
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                  CR-SPLIT="4" />
               
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                     OrbitNumber="3" />
                  
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                     OrbitNumber="3" />
                  
                  <SubExposure
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                     OrbitNumber="3" />
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            </Exposure>
            
            <Exposure
               Number="9"
               Label="F814W, 60 sec"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="F814W"
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               TimePerExposure="60.0"
               RealtimeAnalysis="false"
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               Expand="false"
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               Shadow="false"
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               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <Comments />
               
               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
                  <SubExposure
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            </Exposure>
            
            <Exposure
               Number="10"
               Label="F475W, 15 sec"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="F475W"
               NumberOfIterations="1"
               TimePerExposure="15.0"
               RealtimeAnalysis="false"
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               Expand="false"
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               NewObsetFullAcq="false"
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               <MinDur />
               
               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
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                     OrbitNumber="3" />
                  
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         <ExposureGroup
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            <Exposure
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               Label="F330W, 230 sec"
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               Aperture="HRC-FIX"
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         <ExposureGroup
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               NewObsetFullAcq="false"
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               <MinDur />
               
               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
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            <Exposure
               Number="17"
               Label="F814W, 60 sec"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="F814W"
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               TimePerExposure="60.0"
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               <MinDur />
               
               <InstrumentParameters
                  CR-SPLIT="NO" />
               
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                  <SubExposure
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            <Exposure
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               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
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               Aperture="HRC-FIX"
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               TimePerExposure="1000.0"
               RealtimeAnalysis="false"
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               <MaxDur />
               
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               <InstrumentParameters
                  CR-SPLIT="4" />
               
               <SubExposures>
                  
                  <SubExposure
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                  <SubExposure
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                     OrbitNumber="5" />
                  
                  <SubExposure
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      </Visit>
      
      <Visit
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         Schedulability="100">
         
         <ToolData>
            
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                  <Value>/Volumes/Data/Mark/Work/Uranus/Cycle 13 Phase II/Uranus_2004.apt/OP-cache/Uranus_2004-v14.xml</Value>
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               Key="OpTimeStamp">
               
               <OpToolDataDate>
                  
                  <Time>1084402688086</Time>
               </OpToolDataDate>
            </ToolDataItem>
         </ToolData>
         
         <Comments>Deep search for moons, falling after Visit 10 (opposition) by 11.5 orbits of S/2003 U 2.</Comments>
         
         <TicData>
            
            <TicFileString>
(Tic-Visit
 :proposal-id 10102
 :visit-id "14"
 :proposal-version -1
 :trans-version "20040225"
 :date "12-May-2004 15:57:22.0"
 :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
                 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
 :number-of-orbits 5
 :saa-model "27"
 :si-bright-earth-limb-angle 20.0
 :data-volume 883280
 :tdrss-contact-duration 0
 )

(Tic-Obset
 :proposal-id 10102
 :visit-id "14"
 :obset-id "14"
 :pcs-mode "FGS"
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "14"
 :orbit-number 1
 :pcs-time 365
 :si-vis-utilization 2635
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "14"
 :orbit-number 2
 :pcs-time 300
 :si-vis-utilization 2700
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "14"
 :orbit-number 3
 :pcs-time 300
 :si-vis-utilization 2700
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "14"
 :orbit-number 4
 :pcs-time 300
 :si-vis-utilization 2698
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "14"
 :orbit-number 5
 :pcs-time 300
 :si-vis-utilization 2700
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )
</TicFileString>
            
            <TicDataCurrent>true</TicDataCurrent>
         </TicData>
         
         <ToolData>
            
            <ToolDataItem
               Key="OpVisitCacheFile">
               
               <OpToolDataString>
                  
                  <Value>/Volumes/Data/Mark/Work/Uranus/Cycle 13 Phase II/Uranus_2004.apt/OP-cache/Uranus_2004-v14.xml</Value>
               </OpToolDataString>
            </ToolDataItem>
            
            <ToolDataItem
               Key="OpTimeStamp">
               
               <OpToolDataDate>
                  
                  <Time>1084402688086</Time>
               </OpToolDataDate>
            </ToolDataItem>
         </ToolData>
         
         <GuidingTolerance>
            
            <Angle />
         </GuidingTolerance>
         
         <Orient>
            
            <From
               Degrees="69.0" />
            
            <To
               Degrees="73.0" />
         </Orient>
         
         <Orient>
            
            <From
               Degrees="249.0" />
            
            <To
               Degrees="253.0" />
         </Orient>
         
         <AfterVisit
            Visit="10">
            
            <From
               Days="6.94" />
            
            <To
               Days="7.04" />
         </AfterVisit>
         
         <OnHold
            OnHold="true" />
         
         <OnHoldComments>Schedule any one of these pairs of visits: 10+11, 10+12, 10+13, 10+14, 10+15, 10+16, A0+A1, B0+B1, C0+C1, D0+D1, E0+E1, F0+F1. This set of options expresses the requirement that one visit (10, A1, B1, C1, D1, E1, or F1) falls within 48 hours of opposition (18:00 UT on 27 August) and the other falls either before or after it by a half-integral number of orbits of the moon S/2003 U 2. This cumbersome set of options is necessary because APT provides an "After Visit" clause but not a "Before Visit" clause (and "After Visit" doesn't accept negative numbers).</OnHoldComments>
         
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               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="CLEAR"
               NumberOfIterations="1"
               TimePerExposure="1000.0"
               RealtimeAnalysis="false"
               RequiresUplink="false"
               Expand="false"
               LowSky="false"
               Shadow="false"
               NewAlignment="false"
               NewObset="false"
               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <InstrumentParameters
                  CR-SPLIT="4" />
               
               <SubExposures>
                  
                  <SubExposure
                     SplitNumber="1"
                     OrbitNumber="1" />
                  
                  <SubExposure
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                     OrbitNumber="1" />
                  
                  <SubExposure
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                  <SubExposure
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                     OrbitNumber="1" />
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            </Exposure>
            
            <Exposure
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               Label="F814W, 60 sec"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="F814W"
               NumberOfIterations="1"
               TimePerExposure="60.0"
               RealtimeAnalysis="false"
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               NewObsetFullAcq="false"
               SpecialCommand="false">
               
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               <MinDur />
               
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               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
                  <SubExposure
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            </Exposure>
            
            <Exposure
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               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
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         <ExposureGroup
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               RealtimeAnalysis="false"
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               <MaxDur />
               
               <MinDur />
               
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               <InstrumentParameters
                  CR-SPLIT="4" />
               
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                  <SubExposure
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               Label="F475W, 110 sec"
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                  <SubExposure
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            <Exposure
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                  CR-SPLIT="NO" />
               
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                     OrbitNumber="3" />
                  
                  <SubExposure
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                     OrbitNumber="3" />
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            <Exposure
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               Label="F814W, 60 sec"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
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               RealtimeAnalysis="false"
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               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
                  <SubExposure
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                  CR-SPLIT="NO" />
               
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               SpecialCommand="false">
               
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                  CR-SPLIT="4" />
               
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               Label="F330W, 230 sec"
               TargetName="URANUS-CENTER"
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               Aperture="HRC-FIX"
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         <ExposureGroup
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               Aperture="HRC-FIX"
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               <InstrumentParameters
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            <Exposure
               Number="17"
               Label="F814W, 60 sec"
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               Opmode="ACCUM"
               Aperture="HRC-FIX"
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               <MinDur />
               
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               <InstrumentParameters
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                  <SubExposure
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            <Exposure
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               <InstrumentParameters
                  CR-SPLIT="4" />
               
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      <Visit
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         Schedulability="100">
         
         <ToolData>
            
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                  <Value>/Volumes/Data/Mark/Work/Uranus/Cycle 13 Phase II/Uranus_2004.apt/OP-cache/Uranus_2004-v15.xml</Value>
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               <OpToolDataDate>
                  
                  <Time>1084402944428</Time>
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         </ToolData>
         
         <Comments>Deep search for moons, falling after Visit 10 (opposition) by 12.5 orbits of S/2003 U 2.</Comments>
         
         <TicData>
            
            <TicFileString>
(Tic-Visit
 :proposal-id 10102
 :visit-id "15"
 :proposal-version -1
 :trans-version "20040225"
 :date "12-May-2004 16:01:39.0"
 :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
                 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
 :number-of-orbits 5
 :saa-model "27"
 :si-bright-earth-limb-angle 20.0
 :data-volume 883280
 :tdrss-contact-duration 0
 )

(Tic-Obset
 :proposal-id 10102
 :visit-id "15"
 :obset-id "15"
 :pcs-mode "FGS"
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "15"
 :orbit-number 1
 :pcs-time 365
 :si-vis-utilization 2635
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "15"
 :orbit-number 2
 :pcs-time 300
 :si-vis-utilization 2700
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "15"
 :orbit-number 3
 :pcs-time 300
 :si-vis-utilization 2700
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "15"
 :orbit-number 4
 :pcs-time 300
 :si-vis-utilization 2698
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "15"
 :orbit-number 5
 :pcs-time 300
 :si-vis-utilization 2700
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )
</TicFileString>
            
            <TicDataCurrent>true</TicDataCurrent>
         </TicData>
         
         <ToolData>
            
            <ToolDataItem
               Key="OpVisitCacheFile">
               
               <OpToolDataString>
                  
                  <Value>/Volumes/Data/Mark/Work/Uranus/Cycle 13 Phase II/Uranus_2004.apt/OP-cache/Uranus_2004-v15.xml</Value>
               </OpToolDataString>
            </ToolDataItem>
            
            <ToolDataItem
               Key="OpTimeStamp">
               
               <OpToolDataDate>
                  
                  <Time>1084402944428</Time>
               </OpToolDataDate>
            </ToolDataItem>
         </ToolData>
         
         <GuidingTolerance>
            
            <Angle />
         </GuidingTolerance>
         
         <Orient>
            
            <From
               Degrees="69.0" />
            
            <To
               Degrees="73.0" />
         </Orient>
         
         <Orient>
            
            <From
               Degrees="249.0" />
            
            <To
               Degrees="253.0" />
         </Orient>
         
         <AfterVisit
            Visit="10">
            
            <From
               Days="7.55" />
            
            <To
               Days="7.65" />
         </AfterVisit>
         
         <OnHold
            OnHold="true" />
         
         <OnHoldComments>Schedule any one of these pairs of visits: 10+11, 10+12, 10+13, 10+14, 10+15, 10+16, A0+A1, B0+B1, C0+C1, D0+D1, E0+E1, F0+F1. This set of options expresses the requirement that one visit (10, A1, B1, C1, D1, E1, or F1) falls within 48 hours of opposition (18:00 UT on 27 August) and the other falls either before or after it by a half-integral number of orbits of the moon S/2003 U 2. This cumbersome set of options is necessary because APT provides an "After Visit" clause but not a "Before Visit" clause (and "After Visit" doesn't accept negative numbers).</OnHoldComments>
         
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               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
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               NumberOfIterations="1"
               TimePerExposure="1000.0"
               RealtimeAnalysis="false"
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               Expand="false"
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               Shadow="false"
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               NewObsetFullAcq="false"
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               <Comments />
               
               <InstrumentParameters
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                  <SubExposure
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            </Exposure>
            
            <Exposure
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               Label="F814W, 60 sec"
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               NumberOfIterations="1"
               TimePerExposure="1000.0"
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               Expand="false"
               LowSky="false"
               Shadow="false"
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               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <InstrumentParameters
                  CR-SPLIT="4" />
               
               <SubExposures>
                  
                  <SubExposure
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                  <SubExposure
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                  <SubExposure
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                  <SubExposure
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         <ExposureGroup
            Type="Sequence">
            
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               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
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               Opmode="ACCUM"
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                  <SubExposure
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               NewObsetFullAcq="false"
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               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
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            <Exposure
               Number="17"
               Label="F814W, 60 sec"
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               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="F814W"
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               <MinDur />
               
               <InstrumentParameters
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                  <SubExposure
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            <Exposure
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                  CR-SPLIT="4" />
               
               <SubExposures>
                  
                  <SubExposure
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                  <SubExposure
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                  <SubExposure
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      </Visit>
      
      <Visit
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         Schedulability="100">
         
         <ToolData>
            
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                  <Value>/Volumes/Data/Mark/Work/Uranus/Cycle 13 Phase II/Uranus_2004.apt/OP-cache/Uranus_2004-v16.xml</Value>
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               <OpToolDataDate>
                  
                  <Time>1084403807264</Time>
               </OpToolDataDate>
            </ToolDataItem>
         </ToolData>
         
         <Comments>Deep search for moons, falling after Visit 10 (opposition) by 13.5 orbits of S/2003 U 2.</Comments>
         
         <TicData>
            
            <TicFileString>
(Tic-Visit
 :proposal-id 10102
 :visit-id "16"
 :proposal-version -1
 :trans-version "20040225"
 :date "12-May-2004 16:15:57.0"
 :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
                 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
 :number-of-orbits 5
 :saa-model "27"
 :si-bright-earth-limb-angle 20.0
 :data-volume 883280
 :tdrss-contact-duration 0
 )

(Tic-Obset
 :proposal-id 10102
 :visit-id "16"
 :obset-id "16"
 :pcs-mode "FGS"
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "16"
 :orbit-number 1
 :pcs-time 365
 :si-vis-utilization 2635
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "16"
 :orbit-number 2
 :pcs-time 300
 :si-vis-utilization 2700
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "16"
 :orbit-number 3
 :pcs-time 300
 :si-vis-utilization 2700
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "16"
 :orbit-number 4
 :pcs-time 300
 :si-vis-utilization 2698
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "16"
 :orbit-number 5
 :pcs-time 300
 :si-vis-utilization 2700
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )
</TicFileString>
            
            <TicDataCurrent>true</TicDataCurrent>
         </TicData>
         
         <ToolData>
            
            <ToolDataItem
               Key="OpVisitCacheFile">
               
               <OpToolDataString>
                  
                  <Value>/Volumes/Data/Mark/Work/Uranus/Cycle 13 Phase II/Uranus_2004.apt/OP-cache/Uranus_2004-v16.xml</Value>
               </OpToolDataString>
            </ToolDataItem>
            
            <ToolDataItem
               Key="OpTimeStamp">
               
               <OpToolDataDate>
                  
                  <Time>1084403807264</Time>
               </OpToolDataDate>
            </ToolDataItem>
         </ToolData>
         
         <GuidingTolerance>
            
            <Angle />
         </GuidingTolerance>
         
         <Orient>
            
            <From
               Degrees="69.0" />
            
            <To
               Degrees="73.0" />
         </Orient>
         
         <Orient>
            
            <From
               Degrees="249.0" />
            
            <To
               Degrees="253.0" />
         </Orient>
         
         <AfterVisit
            Visit="10">
            
            <From
               Days="8.16" />
            
            <To
               Days="8.26" />
         </AfterVisit>
         
         <OnHold
            OnHold="true" />
         
         <OnHoldComments>Schedule any one of these pairs of visits: 10+11, 10+12, 10+13, 10+14, 10+15, 10+16, A0+A1, B0+B1, C0+C1, D0+D1, E0+E1, F0+F1. This set of options expresses the requirement that one visit (10, A1, B1, C1, D1, E1, or F1) falls within 48 hours of opposition (18:00 UT on 27 August) and the other falls either before or after it by a half-integral number of orbits of the moon S/2003 U 2. This cumbersome set of options is necessary because APT provides an "After Visit" clause but not a "Before Visit" clause (and "After Visit" doesn't accept negative numbers).</OnHoldComments>
         
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               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
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               Aperture="HRC-FIX"
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               NumberOfIterations="1"
               TimePerExposure="1000.0"
               RealtimeAnalysis="false"
               RequiresUplink="false"
               Expand="false"
               LowSky="false"
               Shadow="false"
               NewAlignment="false"
               NewObset="false"
               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <InstrumentParameters
                  CR-SPLIT="4" />
               
               <SubExposures>
                  
                  <SubExposure
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                  <SubExposure
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                     OrbitNumber="1" />
                  
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            <Exposure
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               TimePerExposure="60.0"
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               <MinDur />
               
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               <InstrumentParameters
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                  <SubExposure
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            </Exposure>
            
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                     OrbitNumber="5" />
               </SubExposures>
            </Exposure>
            
            <Exposure
               Number="16"
               Label="F606W, 45 sec"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="F606W"
               NumberOfIterations="1"
               TimePerExposure="45.0"
               RealtimeAnalysis="false"
               RequiresUplink="false"
               Expand="false"
               LowSky="false"
               Shadow="false"
               NewAlignment="false"
               NewObset="false"
               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <Comments />
               
               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
                  <SubExposure
                     OrbitNumber="5" />
               </SubExposures>
            </Exposure>
            
            <Exposure
               Number="17"
               Label="F814W, 60 sec"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="F814W"
               NumberOfIterations="1"
               TimePerExposure="60.0"
               RealtimeAnalysis="false"
               RequiresUplink="false"
               Expand="false"
               LowSky="false"
               Shadow="false"
               NewAlignment="false"
               NewObset="false"
               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <Comments />
               
               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
                  <SubExposure
                     OrbitNumber="5" />
               </SubExposures>
            </Exposure>
            
            <Exposure
               Number="18"
               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="CLEAR"
               NumberOfIterations="1"
               TimePerExposure="1000.0"
               RealtimeAnalysis="false"
               RequiresUplink="false"
               Expand="false"
               LowSky="false"
               Shadow="false"
               NewAlignment="false"
               NewObset="false"
               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <Comments />
               
               <InstrumentParameters
                  CR-SPLIT="4" />
               
               <SubExposures>
                  
                  <SubExposure
                     SplitNumber="1"
                     OrbitNumber="5" />
                  
                  <SubExposure
                     SplitNumber="2"
                     OrbitNumber="5" />
                  
                  <SubExposure
                     SplitNumber="3"
                     OrbitNumber="5" />
                  
                  <SubExposure
                     SplitNumber="4"
                     OrbitNumber="5" />
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            </Exposure>
         </ExposureGroup>
      </Visit>
      
      <Visit
         Number="A0"
         Schedulability="100">
         
         <ToolData>
            
            <ToolDataItem
               Key="OpVisitCacheFile">
               
               <OpToolDataString>
                  
                  <Value>/Volumes/Data/Mark/Work/Uranus/Cycle 13 Phase II/Uranus_2004.apt/OP-cache/Uranus_2004-vA0.xml</Value>
               </OpToolDataString>
            </ToolDataItem>
            
            <ToolDataItem
               Key="OpTimeStamp">
               
               <OpToolDataDate>
                  
                  <Time>1084425077050</Time>
               </OpToolDataDate>
            </ToolDataItem>
         </ToolData>
         
         <Comments>Deep search for moons, falling before Visit A1 (opposition) by 8.5 orbits of S/2003 U 2.</Comments>
         
         <TicData>
            
            <TicFileString>
(Tic-Visit
 :proposal-id 10102
 :visit-id "A0"
 :proposal-version -1
 :trans-version "20040225"
 :date "12-May-2004 22:10:07.0"
 :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
                 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
 :number-of-orbits 5
 :saa-model "27"
 :si-bright-earth-limb-angle 20.0
 :data-volume 883280
 :tdrss-contact-duration 0
 )

(Tic-Obset
 :proposal-id 10102
 :visit-id "A0"
 :obset-id "A0"
 :pcs-mode "FGS"
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "A0"
 :orbit-number 1
 :pcs-time 365
 :si-vis-utilization 2635
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "A0"
 :orbit-number 2
 :pcs-time 300
 :si-vis-utilization 2700
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "A0"
 :orbit-number 3
 :pcs-time 300
 :si-vis-utilization 2700
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "A0"
 :orbit-number 4
 :pcs-time 300
 :si-vis-utilization 2698
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "A0"
 :orbit-number 5
 :pcs-time 300
 :si-vis-utilization 2700
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )
</TicFileString>
            
            <TicDataCurrent>true</TicDataCurrent>
         </TicData>
         
         <ToolData>
            
            <ToolDataItem
               Key="OpVisitCacheFile">
               
               <OpToolDataString>
                  
                  <Value>/Volumes/Data/Mark/Work/Uranus/Cycle 13 Phase II/Uranus_2004.apt/OP-cache/Uranus_2004-vA0.xml</Value>
               </OpToolDataString>
            </ToolDataItem>
            
            <ToolDataItem
               Key="OpTimeStamp">
               
               <OpToolDataDate>
                  
                  <Time>1084425077050</Time>
               </OpToolDataDate>
            </ToolDataItem>
         </ToolData>
         
         <GuidingTolerance>
            
            <Angle />
         </GuidingTolerance>
         
         <Orient>
            
            <From
               Degrees="69.0" />
            
            <To
               Degrees="73.0" />
         </Orient>
         
         <Orient>
            
            <From
               Degrees="249.0" />
            
            <To
               Degrees="253.0" />
         </Orient>
         
         <Between>
            
            <Start
               Year="2004"
               Month="8"
               Day="20"
               Hrs="13"
               Mins="55"
               Secs="12" />
            
            <End
               Year="2004"
               Month="8"
               Day="24"
               Hrs="6"
               Mins="55"
               Secs="12" />
         </Between>
         
         <OnHold
            OnHold="true" />
         
         <OnHoldComments>Schedule any one of these pairs of visits: 10+11, 10+12, 10+13, 10+14, 10+15, 10+16, A0+A1, B0+B1, C0+C1, D0+D1, E0+E1, F0+F1. This set of options expresses the requirement that one visit (10, A1, B1, C1, D1, E1, or F1) falls within 48 hours of opposition (18:00 UT on 27 August) and the other falls either before or after it by a half-integral number of orbits of the moon S/2003 U 2. This cumbersome set of options is necessary because APT provides an "After Visit" clause but not a "Before Visit" clause (and "After Visit" doesn't accept negative numbers).</OnHoldComments>
         
         <ExposureGroup
            Type="Sequence">
            
            <Exposure
               Number="1"
               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="CLEAR"
               NumberOfIterations="1"
               TimePerExposure="1000.0"
               RealtimeAnalysis="false"
               RequiresUplink="false"
               Expand="false"
               LowSky="false"
               Shadow="false"
               NewAlignment="false"
               NewObset="false"
               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <InstrumentParameters
                  CR-SPLIT="4" />
               
               <SubExposures>
                  
                  <SubExposure
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                     OrbitNumber="1" />
                  
                  <SubExposure
                     SplitNumber="2"
                     OrbitNumber="1" />
                  
                  <SubExposure
                     SplitNumber="3"
                     OrbitNumber="1" />
                  
                  <SubExposure
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                     OrbitNumber="1" />
               </SubExposures>
            </Exposure>
            
            <Exposure
               Number="2"
               Label="F814W, 60 sec"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="F814W"
               NumberOfIterations="1"
               TimePerExposure="60.0"
               RealtimeAnalysis="false"
               RequiresUplink="false"
               Expand="false"
               LowSky="false"
               Shadow="false"
               NewAlignment="false"
               NewObset="false"
               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <Comments />
               
               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
                  <SubExposure
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               </SubExposures>
            </Exposure>
            
            <Exposure
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               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
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               TimePerExposure="1000.0"
               RealtimeAnalysis="false"
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               Expand="false"
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                  <SubExposure
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                  <SubExposure
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                     OrbitNumber="1" />
                  
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                  <SubExposure
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         </ExposureGroup>
         
         <ExposureGroup
            Type="Sequence">
            
            <Exposure
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               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
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               TimePerExposure="1000.0"
               RealtimeAnalysis="false"
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               Expand="false"
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               <MaxDur />
               
               <MinDur />
               
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               <InstrumentParameters
                  CR-SPLIT="4" />
               
               <SubExposures>
                  
                  <SubExposure
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                  <SubExposure
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                     OrbitNumber="2" />
                  
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            </Exposure>
            
            <Exposure
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               Label="F475W, 110 sec"
               TargetName="URANUS-CENTER"
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               <InstrumentParameters
                  CR-SPLIT="NO" />
               
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                  <SubExposure
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            <Exposure
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               TargetName="URANUS-CENTER"
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                  CR-SPLIT="NO" />
               
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                     OrbitNumber="2" />
                  
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               Label="CLEAR, 250 sec x 4"
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               <InstrumentParameters
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               <SubExposures>
                  
                  <SubExposure
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                     OrbitNumber="3" />
                  
                  <SubExposure
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                     OrbitNumber="3" />
                  
                  <SubExposure
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                     OrbitNumber="3" />
                  
                  <SubExposure
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                     OrbitNumber="3" />
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            </Exposure>
            
            <Exposure
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               Label="F814W, 60 sec"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="F814W"
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               TimePerExposure="60.0"
               RealtimeAnalysis="false"
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               Expand="false"
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               NewObset="false"
               NewObsetFullAcq="false"
               SpecialCommand="false">
               
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                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
                  <SubExposure
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            </Exposure>
            
            <Exposure
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               TargetName="URANUS-CENTER"
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               Aperture="HRC-FIX"
               SpElement="F475W"
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               Expand="false"
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               <MinDur />
               
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                  CR-SPLIT="NO" />
               
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            <Exposure
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               TargetName="URANUS-CENTER"
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               SpecialCommand="false">
               
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         <ExposureGroup
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            </Exposure>
            
            <Exposure
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         </ExposureGroup>
         
         <ExposureGroup
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               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
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            </Exposure>
            
            <Exposure
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               TargetName="URANUS-CENTER"
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                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
                  <SubExposure
                     OrbitNumber="5" />
               </SubExposures>
            </Exposure>
            
            <Exposure
               Number="18"
               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="CLEAR"
               NumberOfIterations="1"
               TimePerExposure="1000.0"
               RealtimeAnalysis="false"
               RequiresUplink="false"
               Expand="false"
               LowSky="false"
               Shadow="false"
               NewAlignment="false"
               NewObset="false"
               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <Comments />
               
               <InstrumentParameters
                  CR-SPLIT="4" />
               
               <SubExposures>
                  
                  <SubExposure
                     SplitNumber="1"
                     OrbitNumber="5" />
                  
                  <SubExposure
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                     OrbitNumber="5" />
                  
                  <SubExposure
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                  <SubExposure
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                     OrbitNumber="5" />
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            </Exposure>
         </ExposureGroup>
      </Visit>
      
      <Visit
         Number="A1"
         Schedulability="100">
         
         <ToolData>
            
            <ToolDataItem
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               <OpToolDataString>
                  
                  <Value>/Volumes/Data/Mark/Work/Uranus/Cycle 13 Phase II/Uranus_2004.apt/OP-cache/Uranus_2004-vA1.xml</Value>
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            <ToolDataItem
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               <OpToolDataDate>
                  
                  <Time>1084425412555</Time>
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            </ToolDataItem>
         </ToolData>
         
         <Comments>Deep search for moons within 48 hours of opposition (phase angle &lt; 0.11 degrees).  Note that all five orbits must be consecutive to provide complete orbital coverage.  Rings oriented along the HRC X-axis. For CLEAR-filter images, Uranus is intentionally overexposed; blooming will be along the Y-axis and therefore perpendicular to the rings.  Standard ring photometry images in additional filters, some overexposed but most not, are carried out in the middle of each orbit.</Comments>
         
         <TicData>
            
            <TicFileString>
(Tic-Visit
 :proposal-id 10102
 :visit-id "A1"
 :proposal-version -1
 :trans-version "20040225"
 :date "12-May-2004 22:15:51.0"
 :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
                 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
 :number-of-orbits 5
 :saa-model "27"
 :si-bright-earth-limb-angle 20.0
 :data-volume 883280
 :tdrss-contact-duration 0
 )

(Tic-Obset
 :proposal-id 10102
 :visit-id "A1"
 :obset-id "A1"
 :pcs-mode "FGS"
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "A1"
 :orbit-number 1
 :pcs-time 365
 :si-vis-utilization 2635
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "A1"
 :orbit-number 2
 :pcs-time 300
 :si-vis-utilization 2700
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "A1"
 :orbit-number 3
 :pcs-time 300
 :si-vis-utilization 2700
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "A1"
 :orbit-number 4
 :pcs-time 300
 :si-vis-utilization 2698
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "A1"
 :orbit-number 5
 :pcs-time 300
 :si-vis-utilization 2700
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )
</TicFileString>
            
            <TicDataCurrent>true</TicDataCurrent>
         </TicData>
         
         <ToolData>
            
            <ToolDataItem
               Key="OpVisitCacheFile">
               
               <OpToolDataString>
                  
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            <ToolDataItem
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               <OpToolDataDate>
                  
                  <Time>1084425412555</Time>
               </OpToolDataDate>
            </ToolDataItem>
         </ToolData>
         
         <GuidingTolerance>
            
            <Angle />
         </GuidingTolerance>
         
         <Orient>
            
            <From
               Degrees="69.0" />
            
            <To
               Degrees="73.0" />
         </Orient>
         
         <Orient>
            
            <From
               Degrees="249.0" />
            
            <To
               Degrees="253.0" />
         </Orient>
         
         <AfterVisit
            Visit="A0">
            
            <From
               Days="5.12" />
            
            <To
               Days="5.22" />
         </AfterVisit>
         
         <OnHold
            OnHold="true" />
         
         <OnHoldComments>Schedule any one of these pairs of visits: 10+11, 10+12, 10+13, 10+14, 10+15, 10+16, A0+A1, B0+B1, C0+C1, D0+D1, E0+E1, F0+F1. This set of options expresses the requirement that one visit (10, A1, B1, C1, D1, E1, or F1) falls within 48 hours of opposition (18:00 UT on 27 August) and the other falls either before or after it by a half-integral number of orbits of the moon S/2003 U 2. This cumbersome set of options is necessary because APT provides an "After Visit" clause but not a "Before Visit" clause (and "After Visit" doesn't accept negative numbers).</OnHoldComments>
         
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               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
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               TimePerExposure="1000.0"
               RealtimeAnalysis="false"
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               NewObsetFullAcq="false"
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               <MinDur />
               
               <Comments />
               
               <InstrumentParameters
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               <SubExposures>
                  
                  <SubExposure
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                  <SubExposure
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            <Exposure
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               SpElement="F814W"
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            <Exposure
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      </Visit>
      
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               <OpToolDataDate>
                  
                  <Time>1084425720050</Time>
               </OpToolDataDate>
            </ToolDataItem>
         </ToolData>
         
         <Comments>Deep search for moons, falling before Visit B1 (opposition) by 9.5 orbits of S/2003 U 2.</Comments>
         
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(Tic-Visit
 :proposal-id 10102
 :visit-id "B0"
 :proposal-version -1
 :trans-version "20040225"
 :date "12-May-2004 22:20:59.0"
 :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
                 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
 :number-of-orbits 5
 :saa-model "27"
 :si-bright-earth-limb-angle 20.0
 :data-volume 883280
 :tdrss-contact-duration 0
 )

(Tic-Obset
 :proposal-id 10102
 :visit-id "B0"
 :obset-id "B0"
 :pcs-mode "FGS"
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "B0"
 :orbit-number 1
 :pcs-time 365
 :si-vis-utilization 2635
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "B0"
 :orbit-number 2
 :pcs-time 300
 :si-vis-utilization 2700
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "B0"
 :orbit-number 3
 :pcs-time 300
 :si-vis-utilization 2700
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
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(Tic-Orbit
 :proposal-id 10102
 :visit-id "B0"
 :orbit-number 4
 :pcs-time 300
 :si-vis-utilization 2698
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "B0"
 :orbit-number 5
 :pcs-time 300
 :si-vis-utilization 2700
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )
</TicFileString>
            
            <TicDataCurrent>true</TicDataCurrent>
         </TicData>
         
         <ToolData>
            
            <ToolDataItem
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               <OpToolDataString>
                  
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            </ToolDataItem>
            
            <ToolDataItem
               Key="OpTimeStamp">
               
               <OpToolDataDate>
                  
                  <Time>1084425720050</Time>
               </OpToolDataDate>
            </ToolDataItem>
         </ToolData>
         
         <GuidingTolerance>
            
            <Angle />
         </GuidingTolerance>
         
         <Orient>
            
            <From
               Degrees="69.0" />
            
            <To
               Degrees="73.0" />
         </Orient>
         
         <Orient>
            
            <From
               Degrees="249.0" />
            
            <To
               Degrees="253.0" />
         </Orient>
         
         <Between>
            
            <Start
               Year="2004"
               Month="8"
               Day="19"
               Hrs="23"
               Mins="16"
               Secs="48" />
            
            <End
               Year="2004"
               Month="8"
               Day="23"
               Hrs="16"
               Mins="16"
               Secs="48" />
         </Between>
         
         <OnHold
            OnHold="true" />
         
         <OnHoldComments>Schedule any one of these pairs of visits: 10+11, 10+12, 10+13, 10+14, 10+15, 10+16, A0+A1, B0+B1, C0+C1, D0+D1, E0+E1, F0+F1. This set of options expresses the requirement that one visit (10, A1, B1, C1, D1, E1, or F1) falls within 48 hours of opposition (18:00 UT on 27 August) and the other falls either before or after it by a half-integral number of orbits of the moon S/2003 U 2. This cumbersome set of options is necessary because APT provides an "After Visit" clause but not a "Before Visit" clause (and "After Visit" doesn't accept negative numbers).</OnHoldComments>
         
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               RealtimeAnalysis="false"
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               NewObsetFullAcq="false"
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               <InstrumentParameters
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            <Exposure
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                  CR-SPLIT="NO" />
               
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            <Exposure
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      </Visit>
      
      <Visit
         Number="B1"
         Schedulability="100">
         
         <ToolData>
            
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               <OpToolDataString>
                  
                  <Value>/Volumes/Data/Mark/Work/Uranus/Cycle 13 Phase II/Uranus_2004.apt/OP-cache/Uranus_2004-vB1.xml</Value>
               </OpToolDataString>
            </ToolDataItem>
            
            <ToolDataItem
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               <OpToolDataDate>
                  
                  <Time>1084426031318</Time>
               </OpToolDataDate>
            </ToolDataItem>
         </ToolData>
         
         <Comments>Deep search for moons within 48 hours of opposition (phase angle &lt; 0.11 degrees).  Note that all five orbits must be consecutive to provide complete orbital coverage.  Rings oriented along the HRC X-axis. For CLEAR-filter images, Uranus is intentionally overexposed; blooming will be along the Y-axis and therefore perpendicular to the rings.  Standard ring photometry images in additional filters, some overexposed but most not, are carried out in the middle of each orbit.</Comments>
         
         <TicData>
            
            <TicFileString>
(Tic-Visit
 :proposal-id 10102
 :visit-id "B1"
 :proposal-version -1
 :trans-version "20040225"
 :date "12-May-2004 22:26:27.0"
 :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
                 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
 :number-of-orbits 5
 :saa-model "27"
 :si-bright-earth-limb-angle 20.0
 :data-volume 883280
 :tdrss-contact-duration 0
 )

(Tic-Obset
 :proposal-id 10102
 :visit-id "B1"
 :obset-id "B1"
 :pcs-mode "FGS"
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "B1"
 :orbit-number 1
 :pcs-time 365
 :si-vis-utilization 2635
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "B1"
 :orbit-number 2
 :pcs-time 300
 :si-vis-utilization 2700
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "B1"
 :orbit-number 3
 :pcs-time 300
 :si-vis-utilization 2700
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "B1"
 :orbit-number 4
 :pcs-time 300
 :si-vis-utilization 2698
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "B1"
 :orbit-number 5
 :pcs-time 300
 :si-vis-utilization 2700
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )
</TicFileString>
            
            <TicDataCurrent>true</TicDataCurrent>
         </TicData>
         
         <ToolData>
            
            <ToolDataItem
               Key="OpVisitCacheFile">
               
               <OpToolDataString>
                  
                  <Value>/Volumes/Data/Mark/Work/Uranus/Cycle 13 Phase II/Uranus_2004.apt/OP-cache/Uranus_2004-vB1.xml</Value>
               </OpToolDataString>
            </ToolDataItem>
            
            <ToolDataItem
               Key="OpTimeStamp">
               
               <OpToolDataDate>
                  
                  <Time>1084426031318</Time>
               </OpToolDataDate>
            </ToolDataItem>
         </ToolData>
         
         <GuidingTolerance>
            
            <Angle />
         </GuidingTolerance>
         
         <Orient>
            
            <From
               Degrees="69.0" />
            
            <To
               Degrees="73.0" />
         </Orient>
         
         <Orient>
            
            <From
               Degrees="249.0" />
            
            <To
               Degrees="253.0" />
         </Orient>
         
         <AfterVisit
            Visit="B0">
            
            <From
               Days="5.73" />
            
            <To
               Days="5.83" />
         </AfterVisit>
         
         <OnHold
            OnHold="true" />
         
         <OnHoldComments>Schedule any one of these pairs of visits: 10+11, 10+12, 10+13, 10+14, 10+15, 10+16, A0+A1, B0+B1, C0+C1, D0+D1, E0+E1, F0+F1. This set of options expresses the requirement that one visit (10, A1, B1, C1, D1, E1, or F1) falls within 48 hours of opposition (18:00 UT on 27 August) and the other falls either before or after it by a half-integral number of orbits of the moon S/2003 U 2. This cumbersome set of options is necessary because APT provides an "After Visit" clause but not a "Before Visit" clause (and "After Visit" doesn't accept negative numbers).</OnHoldComments>
         
         <ExposureGroup
            Type="Sequence">
            
            <Exposure
               Number="1"
               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="CLEAR"
               NumberOfIterations="1"
               TimePerExposure="1000.0"
               RealtimeAnalysis="false"
               RequiresUplink="false"
               Expand="false"
               LowSky="false"
               Shadow="false"
               NewAlignment="false"
               NewObset="false"
               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <InstrumentParameters
                  CR-SPLIT="4" />
               
               <SubExposures>
                  
                  <SubExposure
                     SplitNumber="1"
                     OrbitNumber="1" />
                  
                  <SubExposure
                     SplitNumber="2"
                     OrbitNumber="1" />
                  
                  <SubExposure
                     SplitNumber="3"
                     OrbitNumber="1" />
                  
                  <SubExposure
                     SplitNumber="4"
                     OrbitNumber="1" />
               </SubExposures>
            </Exposure>
            
            <Exposure
               Number="2"
               Label="F814W, 60 sec"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="F814W"
               NumberOfIterations="1"
               TimePerExposure="60.0"
               RealtimeAnalysis="false"
               RequiresUplink="false"
               Expand="false"
               LowSky="false"
               Shadow="false"
               NewAlignment="false"
               NewObset="false"
               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <Comments />
               
               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
                  <SubExposure
                     OrbitNumber="1" />
               </SubExposures>
            </Exposure>
            
            <Exposure
               Number="3"
               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
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               TimePerExposure="1000.0"
               RealtimeAnalysis="false"
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               Expand="false"
               LowSky="false"
               Shadow="false"
               NewAlignment="false"
               NewObset="false"
               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <Comments />
               
               <InstrumentParameters
                  CR-SPLIT="4" />
               
               <SubExposures>
                  
                  <SubExposure
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                     OrbitNumber="1" />
                  
                  <SubExposure
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                     OrbitNumber="1" />
                  
                  <SubExposure
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                     OrbitNumber="1" />
                  
                  <SubExposure
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                     OrbitNumber="1" />
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            </Exposure>
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         <ExposureGroup
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            <Exposure
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               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="CLEAR"
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               RealtimeAnalysis="false"
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               Expand="false"
               LowSky="false"
               Shadow="false"
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               NewObset="false"
               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <Comments />
               
               <InstrumentParameters
                  CR-SPLIT="4" />
               
               <SubExposures>
                  
                  <SubExposure
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                     OrbitNumber="2" />
                  
                  <SubExposure
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                     OrbitNumber="2" />
                  
                  <SubExposure
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                  <SubExposure
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                     OrbitNumber="2" />
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            </Exposure>
            
            <Exposure
               Number="5"
               Label="F475W, 110 sec"
               TargetName="URANUS-CENTER"
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               Aperture="HRC-FIX"
               SpElement="F475W"
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               TimePerExposure="110.0"
               RealtimeAnalysis="false"
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               Expand="false"
               LowSky="false"
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               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <Comments />
               
               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
                  <SubExposure
                     OrbitNumber="2" />
               </SubExposures>
            </Exposure>
            
            <Exposure
               Number="6"
               Label="F606W, 10 sec"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="F606W"
               NumberOfIterations="1"
               TimePerExposure="10.0"
               RealtimeAnalysis="false"
               RequiresUplink="false"
               Expand="false"
               LowSky="false"
               Shadow="false"
               NewAlignment="false"
               NewObset="false"
               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
                  <SubExposure
                     OrbitNumber="2" />
               </SubExposures>
            </Exposure>
            
            <Exposure
               Number="7"
               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
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               Aperture="HRC-FIX"
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               TimePerExposure="1000.0"
               RealtimeAnalysis="false"
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               Expand="false"
               LowSky="false"
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               <MaxDur />
               
               <MinDur />
               
               <InstrumentParameters
                  CR-SPLIT="4" />
               
               <SubExposures>
                  
                  <SubExposure
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                  <SubExposure
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                  <SubExposure
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                  <SubExposure
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         <ExposureGroup
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               <InstrumentParameters
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               <SubExposures>
                  
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                  <SubExposure
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                  <SubExposure
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            </Exposure>
            
            <Exposure
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               NewObsetFullAcq="false"
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               <MinDur />
               
               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
                  <SubExposure
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            <Exposure
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               <MinDur />
               
               <Comments />
               
               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
                  <SubExposure
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            </Exposure>
            
            <Exposure
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               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <InstrumentParameters
                  CR-SPLIT="4" />
               
               <SubExposures>
                  
                  <SubExposure
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                     OrbitNumber="3" />
                  
                  <SubExposure
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                     OrbitNumber="3" />
                  
                  <SubExposure
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                     OrbitNumber="3" />
                  
                  <SubExposure
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                     OrbitNumber="3" />
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            </Exposure>
         </ExposureGroup>
         
         <ExposureGroup
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            <Exposure
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               Label="CLEAR, 250 sec x 4"
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               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
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               <MaxDur />
               
               <MinDur />
               
               <InstrumentParameters
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               <SubExposures>
                  
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                  <SubExposure
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                  <SubExposure
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                     OrbitNumber="4" />
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            </Exposure>
            
            <Exposure
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               Label="F330W, 230 sec"
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               Aperture="HRC-FIX"
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               TimePerExposure="230.0"
               RealtimeAnalysis="false"
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               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <Comments />
               
               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
                  <SubExposure
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               </SubExposures>
            </Exposure>
            
            <Exposure
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               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
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               <InstrumentParameters
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               <SubExposures>
                  
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                  <SubExposure
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                     OrbitNumber="4" />
                  
                  <SubExposure
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                  <SubExposure
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            </Exposure>
         </ExposureGroup>
         
         <ExposureGroup
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               Label="CLEAR, 250 sec x 4"
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               <MaxDur />
               
               <MinDur />
               
               <InstrumentParameters
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               <SubExposures>
                  
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                  <SubExposure
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                  <SubExposure
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                  <SubExposure
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            </Exposure>
            
            <Exposure
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               Label="F606W, 45 sec"
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               SpElement="F606W"
               NumberOfIterations="1"
               TimePerExposure="45.0"
               RealtimeAnalysis="false"
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               Expand="false"
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               NewObset="false"
               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <Comments />
               
               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
                  <SubExposure
                     OrbitNumber="5" />
               </SubExposures>
            </Exposure>
            
            <Exposure
               Number="17"
               Label="F814W, 60 sec"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="F814W"
               NumberOfIterations="1"
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               NewObsetFullAcq="false"
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               <MaxDur />
               
               <MinDur />
               
               <Comments />
               
               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
                  <SubExposure
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               </SubExposures>
            </Exposure>
            
            <Exposure
               Number="18"
               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
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               Opmode="ACCUM"
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               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <Comments />
               
               <InstrumentParameters
                  CR-SPLIT="4" />
               
               <SubExposures>
                  
                  <SubExposure
                     SplitNumber="1"
                     OrbitNumber="5" />
                  
                  <SubExposure
                     SplitNumber="2"
                     OrbitNumber="5" />
                  
                  <SubExposure
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                     OrbitNumber="5" />
                  
                  <SubExposure
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                     OrbitNumber="5" />
               </SubExposures>
            </Exposure>
         </ExposureGroup>
      </Visit>
      
      <Visit
         Number="C0"
         Schedulability="100">
         
         <ToolData>
            
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            <ToolDataItem
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               <OpToolDataDate>
                  
                  <Time>1084426338410</Time>
               </OpToolDataDate>
            </ToolDataItem>
         </ToolData>
         
         <Comments>Deep search for moons, falling before Visit C1 (opposition) by 10.5 orbits of S/2003 U 2.</Comments>
         
         <TicData>
            
            <TicFileString>
(Tic-Visit
 :proposal-id 10102
 :visit-id "C0"
 :proposal-version -1
 :trans-version "20040225"
 :date "12-May-2004 22:31:24.0"
 :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
                 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
 :number-of-orbits 5
 :saa-model "27"
 :si-bright-earth-limb-angle 20.0
 :data-volume 883280
 :tdrss-contact-duration 0
 )

(Tic-Obset
 :proposal-id 10102
 :visit-id "C0"
 :obset-id "C0"
 :pcs-mode "FGS"
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "C0"
 :orbit-number 1
 :pcs-time 365
 :si-vis-utilization 2635
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "C0"
 :orbit-number 2
 :pcs-time 300
 :si-vis-utilization 2700
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "C0"
 :orbit-number 3
 :pcs-time 300
 :si-vis-utilization 2700
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "C0"
 :orbit-number 4
 :pcs-time 300
 :si-vis-utilization 2698
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "C0"
 :orbit-number 5
 :pcs-time 300
 :si-vis-utilization 2700
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )
</TicFileString>
            
            <TicDataCurrent>true</TicDataCurrent>
         </TicData>
         
         <ToolData>
            
            <ToolDataItem
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               <OpToolDataString>
                  
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               </OpToolDataString>
            </ToolDataItem>
            
            <ToolDataItem
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               <OpToolDataDate>
                  
                  <Time>1084426338410</Time>
               </OpToolDataDate>
            </ToolDataItem>
         </ToolData>
         
         <GuidingTolerance>
            
            <Angle />
         </GuidingTolerance>
         
         <Orient>
            
            <From
               Degrees="69.0" />
            
            <To
               Degrees="73.0" />
         </Orient>
         
         <Orient>
            
            <From
               Degrees="249.0" />
            
            <To
               Degrees="253.0" />
         </Orient>
         
         <Between>
            
            <Start
               Year="2004"
               Month="8"
               Day="19"
               Hrs="8"
               Mins="38"
               Secs="24" />
            
            <End
               Year="2004"
               Month="8"
               Day="23"
               Hrs="1"
               Mins="38"
               Secs="24" />
         </Between>
         
         <OnHold
            OnHold="true" />
         
         <OnHoldComments>Schedule any one of these pairs of visits: 10+11, 10+12, 10+13, 10+14, 10+15, 10+16, A0+A1, B0+B1, C0+C1, D0+D1, E0+E1, F0+F1. This set of options expresses the requirement that one visit (10, A1, B1, C1, D1, E1, or F1) falls within 48 hours of opposition (18:00 UT on 27 August) and the other falls either before or after it by a half-integral number of orbits of the moon S/2003 U 2. This cumbersome set of options is necessary because APT provides an "After Visit" clause but not a "Before Visit" clause (and "After Visit" doesn't accept negative numbers).</OnHoldComments>
         
         <ExposureGroup
            Type="Sequence">
            
            <Exposure
               Number="1"
               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="CLEAR"
               NumberOfIterations="1"
               TimePerExposure="1000.0"
               RealtimeAnalysis="false"
               RequiresUplink="false"
               Expand="false"
               LowSky="false"
               Shadow="false"
               NewAlignment="false"
               NewObset="false"
               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <Comments />
               
               <InstrumentParameters
                  CR-SPLIT="4" />
               
               <SubExposures>
                  
                  <SubExposure
                     SplitNumber="1"
                     OrbitNumber="1" />
                  
                  <SubExposure
                     SplitNumber="2"
                     OrbitNumber="1" />
                  
                  <SubExposure
                     SplitNumber="3"
                     OrbitNumber="1" />
                  
                  <SubExposure
                     SplitNumber="4"
                     OrbitNumber="1" />
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            </Exposure>
            
            <Exposure
               Number="2"
               Label="F814W, 60 sec"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="F814W"
               NumberOfIterations="1"
               TimePerExposure="60.0"
               RealtimeAnalysis="false"
               RequiresUplink="false"
               Expand="false"
               LowSky="false"
               Shadow="false"
               NewAlignment="false"
               NewObset="false"
               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
                  <SubExposure
                     OrbitNumber="1" />
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            </Exposure>
            
            <Exposure
               Number="3"
               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="CLEAR"
               NumberOfIterations="1"
               TimePerExposure="1000.0"
               RealtimeAnalysis="false"
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               Expand="false"
               LowSky="false"
               Shadow="false"
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               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <InstrumentParameters
                  CR-SPLIT="4" />
               
               <SubExposures>
                  
                  <SubExposure
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                     OrbitNumber="1" />
                  
                  <SubExposure
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                     OrbitNumber="1" />
                  
                  <SubExposure
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                     OrbitNumber="1" />
                  
                  <SubExposure
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         <ExposureGroup
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            <Exposure
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               Label="CLEAR, 250 sec x 4"
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               NewObsetFullAcq="false"
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               <MaxDur />
               
               <MinDur />
               
               <InstrumentParameters
                  CR-SPLIT="4" />
               
               <SubExposures>
                  
                  <SubExposure
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                     OrbitNumber="2" />
                  
                  <SubExposure
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                     OrbitNumber="2" />
                  
                  <SubExposure
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                     OrbitNumber="2" />
                  
                  <SubExposure
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            </Exposure>
            
            <Exposure
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               Label="F475W, 110 sec"
               TargetName="URANUS-CENTER"
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               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
                  <SubExposure
                     OrbitNumber="2" />
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            </Exposure>
            
            <Exposure
               Number="6"
               Label="F606W, 10 sec"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
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               TimePerExposure="10.0"
               RealtimeAnalysis="false"
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               Expand="false"
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               NewObset="false"
               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <Comments />
               
               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
                  <SubExposure
                     OrbitNumber="2" />
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            </Exposure>
            
            <Exposure
               Number="7"
               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
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               NewObsetFullAcq="false"
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               <MaxDur />
               
               <MinDur />
               
               <Comments />
               
               <InstrumentParameters
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               <SubExposures>
                  
                  <SubExposure
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                     OrbitNumber="2" />
                  
                  <SubExposure
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                     OrbitNumber="2" />
                  
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                     OrbitNumber="2" />
                  
                  <SubExposure
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                     OrbitNumber="2" />
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         </ExposureGroup>
         
         <ExposureGroup
            Type="Sequence">
            
            <Exposure
               Number="8"
               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="CLEAR"
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               RealtimeAnalysis="false"
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               NewObsetFullAcq="false"
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               <MaxDur />
               
               <MinDur />
               
               <InstrumentParameters
                  CR-SPLIT="4" />
               
               <SubExposures>
                  
                  <SubExposure
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                     OrbitNumber="3" />
                  
                  <SubExposure
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                     OrbitNumber="3" />
                  
                  <SubExposure
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                     OrbitNumber="3" />
                  
                  <SubExposure
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                     OrbitNumber="3" />
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            </Exposure>
            
            <Exposure
               Number="9"
               Label="F814W, 60 sec"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="F814W"
               NumberOfIterations="1"
               TimePerExposure="60.0"
               RealtimeAnalysis="false"
               RequiresUplink="false"
               Expand="false"
               LowSky="false"
               Shadow="false"
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               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <Comments />
               
               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
                  <SubExposure
                     OrbitNumber="3" />
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            </Exposure>
            
            <Exposure
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               Label="F475W, 15 sec"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="F475W"
               NumberOfIterations="1"
               TimePerExposure="15.0"
               RealtimeAnalysis="false"
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               Expand="false"
               LowSky="false"
               Shadow="false"
               NewAlignment="false"
               NewObset="false"
               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
                  <SubExposure
                     OrbitNumber="3" />
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            </Exposure>
            
            <Exposure
               Number="11"
               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
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               NewObset="false"
               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <Comments />
               
               <InstrumentParameters
                  CR-SPLIT="4" />
               
               <SubExposures>
                  
                  <SubExposure
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                     OrbitNumber="3" />
                  
                  <SubExposure
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                     OrbitNumber="3" />
                  
                  <SubExposure
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                     OrbitNumber="3" />
                  
                  <SubExposure
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                     OrbitNumber="3" />
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         </ExposureGroup>
         
         <ExposureGroup
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            <Exposure
               Number="12"
               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
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               Aperture="HRC-FIX"
               SpElement="CLEAR"
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               NewObsetFullAcq="false"
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               <MinDur />
               
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               <InstrumentParameters
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            </Exposure>
            
            <Exposure
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               Label="F330W, 230 sec"
               TargetName="URANUS-CENTER"
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               NewObset="false"
               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
                  <SubExposure
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            <Exposure
               Number="14"
               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
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               Opmode="ACCUM"
               Aperture="HRC-FIX"
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         <ExposureGroup
            Type="Sequence">
            
            <Exposure
               Number="15"
               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
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               Opmode="ACCUM"
               Aperture="HRC-FIX"
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                  <SubExposure
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            </Exposure>
            
            <Exposure
               Number="16"
               Label="F606W, 45 sec"
               TargetName="URANUS-CENTER"
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               Opmode="ACCUM"
               Aperture="HRC-FIX"
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               RealtimeAnalysis="false"
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               LowSky="false"
               Shadow="false"
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               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
                  <SubExposure
                     OrbitNumber="5" />
               </SubExposures>
            </Exposure>
            
            <Exposure
               Number="17"
               Label="F814W, 60 sec"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="F814W"
               NumberOfIterations="1"
               TimePerExposure="60.0"
               RealtimeAnalysis="false"
               RequiresUplink="false"
               Expand="false"
               LowSky="false"
               Shadow="false"
               NewAlignment="false"
               NewObset="false"
               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
                  <SubExposure
                     OrbitNumber="5" />
               </SubExposures>
            </Exposure>
            
            <Exposure
               Number="18"
               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="CLEAR"
               NumberOfIterations="1"
               TimePerExposure="1000.0"
               RealtimeAnalysis="false"
               RequiresUplink="false"
               Expand="false"
               LowSky="false"
               Shadow="false"
               NewAlignment="false"
               NewObset="false"
               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <InstrumentParameters
                  CR-SPLIT="4" />
               
               <SubExposures>
                  
                  <SubExposure
                     SplitNumber="1"
                     OrbitNumber="5" />
                  
                  <SubExposure
                     SplitNumber="2"
                     OrbitNumber="5" />
                  
                  <SubExposure
                     SplitNumber="3"
                     OrbitNumber="5" />
                  
                  <SubExposure
                     SplitNumber="4"
                     OrbitNumber="5" />
               </SubExposures>
            </Exposure>
         </ExposureGroup>
      </Visit>
      
      <Visit
         Number="C1"
         Schedulability="100">
         
         <ToolData>
            
            <ToolDataItem
               Key="OpVisitCacheFile">
               
               <OpToolDataString>
                  
                  <Value>/Volumes/Data/Mark/Work/Uranus/Cycle 13 Phase II/Uranus_2004.apt/OP-cache/Uranus_2004-vC1.xml</Value>
               </OpToolDataString>
            </ToolDataItem>
            
            <ToolDataItem
               Key="OpTimeStamp">
               
               <OpToolDataDate>
                  
                  <Time>1084426598952</Time>
               </OpToolDataDate>
            </ToolDataItem>
         </ToolData>
         
         <Comments>Deep search for moons within 48 hours of opposition (phase angle &lt; 0.11 degrees).  Note that all five orbits must be consecutive to provide complete orbital coverage.  Rings oriented along the HRC X-axis. For CLEAR-filter images, Uranus is intentionally overexposed; blooming will be along the Y-axis and therefore perpendicular to the rings.  Standard ring photometry images in additional filters, some overexposed but most not, are carried out in the middle of each orbit.</Comments>
         
         <TicData>
            
            <TicFileString>
(Tic-Visit
 :proposal-id 10102
 :visit-id "C1"
 :proposal-version -1
 :trans-version "20040225"
 :date "12-May-2004 22:35:43.0"
 :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
                 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
 :number-of-orbits 5
 :saa-model "27"
 :si-bright-earth-limb-angle 20.0
 :data-volume 883280
 :tdrss-contact-duration 0
 )

(Tic-Obset
 :proposal-id 10102
 :visit-id "C1"
 :obset-id "C1"
 :pcs-mode "FGS"
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "C1"
 :orbit-number 1
 :pcs-time 365
 :si-vis-utilization 2635
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "C1"
 :orbit-number 2
 :pcs-time 300
 :si-vis-utilization 2700
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "C1"
 :orbit-number 3
 :pcs-time 300
 :si-vis-utilization 2700
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "C1"
 :orbit-number 4
 :pcs-time 300
 :si-vis-utilization 2698
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "C1"
 :orbit-number 5
 :pcs-time 300
 :si-vis-utilization 2700
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )
</TicFileString>
            
            <TicDataCurrent>true</TicDataCurrent>
         </TicData>
         
         <ToolData>
            
            <ToolDataItem
               Key="OpVisitCacheFile">
               
               <OpToolDataString>
                  
                  <Value>/Volumes/Data/Mark/Work/Uranus/Cycle 13 Phase II/Uranus_2004.apt/OP-cache/Uranus_2004-vC1.xml</Value>
               </OpToolDataString>
            </ToolDataItem>
            
            <ToolDataItem
               Key="OpTimeStamp">
               
               <OpToolDataDate>
                  
                  <Time>1084426598952</Time>
               </OpToolDataDate>
            </ToolDataItem>
         </ToolData>
         
         <GuidingTolerance>
            
            <Angle />
         </GuidingTolerance>
         
         <Orient>
            
            <From
               Degrees="69.0" />
            
            <To
               Degrees="73.0" />
         </Orient>
         
         <Orient>
            
            <From
               Degrees="249.0" />
            
            <To
               Degrees="253.0" />
         </Orient>
         
         <AfterVisit
            Visit="C0">
            
            <From
               Days="6.34" />
            
            <To
               Days="6.44" />
         </AfterVisit>
         
         <OnHold
            OnHold="true" />
         
         <OnHoldComments>Schedule any one of these pairs of visits: 10+11, 10+12, 10+13, 10+14, 10+15, 10+16, A0+A1, B0+B1, C0+C1, D0+D1, E0+E1, F0+F1. This set of options expresses the requirement that one visit (10, A1, B1, C1, D1, E1, or F1) falls within 48 hours of opposition (18:00 UT on 27 August) and the other falls either before or after it by a half-integral number of orbits of the moon S/2003 U 2. This cumbersome set of options is necessary because APT provides an "After Visit" clause but not a "Before Visit" clause (and "After Visit" doesn't accept negative numbers).</OnHoldComments>
         
         <ExposureGroup
            Type="Sequence">
            
            <Exposure
               Number="1"
               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="CLEAR"
               NumberOfIterations="1"
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               NewObset="false"
               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <InstrumentParameters
                  CR-SPLIT="4" />
               
               <SubExposures>
                  
                  <SubExposure
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                  <SubExposure
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               TargetName="URANUS-CENTER"
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               NewObsetFullAcq="false"
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               <MaxDur />
               
               <MinDur />
               
               <Comments />
               
               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
                  <SubExposure
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            <Exposure
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               Label="CLEAR, 250 sec x 4"
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               RealtimeAnalysis="false"
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               LowSky="false"
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               NewObsetFullAcq="false"
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               <MaxDur />
               
               <MinDur />
               
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               <InstrumentParameters
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               <SubExposures>
                  
                  <SubExposure
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               <MinDur />
               
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               <InstrumentParameters
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                  <SubExposure
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            <Exposure
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               <MaxDur />
               
               <MinDur />
               
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               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
                  <SubExposure
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            </Exposure>
            
            <Exposure
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               Label="F606W, 10 sec"
               TargetName="URANUS-CENTER"
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               <MinDur />
               
               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
                  <SubExposure
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            <Exposure
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               <MinDur />
               
               <InstrumentParameters
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               <SubExposures>
                  
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         <ExposureGroup
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            <Exposure
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               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
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               Aperture="HRC-FIX"
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               <InstrumentParameters
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                  <SubExposure
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            <Exposure
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               Label="F814W, 60 sec"
               TargetName="URANUS-CENTER"
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               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="F814W"
               NumberOfIterations="1"
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               NewObsetFullAcq="false"
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               <MinDur />
               
               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
                  <SubExposure
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            <Exposure
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               Label="F475W, 15 sec"
               TargetName="URANUS-CENTER"
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               Aperture="HRC-FIX"
               SpElement="F475W"
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               TimePerExposure="15.0"
               RealtimeAnalysis="false"
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               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <Comments />
               
               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
                  <SubExposure
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            <Exposure
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               TargetName="URANUS-CENTER"
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               TimePerExposure="1000.0"
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               NewObsetFullAcq="false"
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         <ExposureGroup
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               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
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               Aperture="HRC-FIX"
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                  <SubExposure
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            </Exposure>
            
            <Exposure
               Number="13"
               Label="F330W, 230 sec"
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               <MaxDur />
               
               <MinDur />
               
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               <InstrumentParameters
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                  <SubExposure
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            <Exposure
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               Label="CLEAR, 250 sec x 4"
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         <ExposureGroup
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               Label="CLEAR, 250 sec x 4"
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               Aperture="HRC-FIX"
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            <Exposure
               Number="16"
               Label="F606W, 45 sec"
               TargetName="URANUS-CENTER"
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               <MinDur />
               
               <Comments />
               
               <InstrumentParameters
                  CR-SPLIT="NO" />
               
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                  <SubExposure
                     OrbitNumber="5" />
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            </Exposure>
            
            <Exposure
               Number="17"
               Label="F814W, 60 sec"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="F814W"
               NumberOfIterations="1"
               TimePerExposure="60.0"
               RealtimeAnalysis="false"
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               Expand="false"
               LowSky="false"
               Shadow="false"
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               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <Comments />
               
               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
                  <SubExposure
                     OrbitNumber="5" />
               </SubExposures>
            </Exposure>
            
            <Exposure
               Number="18"
               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="CLEAR"
               NumberOfIterations="1"
               TimePerExposure="1000.0"
               RealtimeAnalysis="false"
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               Expand="false"
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               Shadow="false"
               NewAlignment="false"
               NewObset="false"
               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <Comments />
               
               <InstrumentParameters
                  CR-SPLIT="4" />
               
               <SubExposures>
                  
                  <SubExposure
                     SplitNumber="1"
                     OrbitNumber="5" />
                  
                  <SubExposure
                     SplitNumber="2"
                     OrbitNumber="5" />
                  
                  <SubExposure
                     SplitNumber="3"
                     OrbitNumber="5" />
                  
                  <SubExposure
                     SplitNumber="4"
                     OrbitNumber="5" />
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         </ExposureGroup>
      </Visit>
      
      <Visit
         Number="D0"
         Schedulability="100">
         
         <ToolData>
            
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                  <Value>/Volumes/Data/Mark/Work/Uranus/Cycle 13 Phase II/Uranus_2004.apt/OP-cache/Uranus_2004-vD0.xml</Value>
               </OpToolDataString>
            </ToolDataItem>
            
            <ToolDataItem
               Key="OpTimeStamp">
               
               <OpToolDataDate>
                  
                  <Time>1084426877108</Time>
               </OpToolDataDate>
            </ToolDataItem>
         </ToolData>
         
         <Comments>Deep search for moons, falling before Visit D1 (opposition) by 11.5 orbits of S/2003 U 2.</Comments>
         
         <TicData>
            
            <TicFileString>
(Tic-Visit
 :proposal-id 10102
 :visit-id "D0"
 :proposal-version -1
 :trans-version "20040225"
 :date "12-May-2004 22:40:37.0"
 :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
                 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
 :number-of-orbits 5
 :saa-model "27"
 :si-bright-earth-limb-angle 20.0
 :data-volume 883280
 :tdrss-contact-duration 0
 )

(Tic-Obset
 :proposal-id 10102
 :visit-id "D0"
 :obset-id "D0"
 :pcs-mode "FGS"
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "D0"
 :orbit-number 1
 :pcs-time 365
 :si-vis-utilization 2635
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "D0"
 :orbit-number 2
 :pcs-time 300
 :si-vis-utilization 2700
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "D0"
 :orbit-number 3
 :pcs-time 300
 :si-vis-utilization 2700
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "D0"
 :orbit-number 4
 :pcs-time 300
 :si-vis-utilization 2698
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "D0"
 :orbit-number 5
 :pcs-time 300
 :si-vis-utilization 2700
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )
</TicFileString>
            
            <TicDataCurrent>true</TicDataCurrent>
         </TicData>
         
         <ToolData>
            
            <ToolDataItem
               Key="OpVisitCacheFile">
               
               <OpToolDataString>
                  
                  <Value>/Volumes/Data/Mark/Work/Uranus/Cycle 13 Phase II/Uranus_2004.apt/OP-cache/Uranus_2004-vD0.xml</Value>
               </OpToolDataString>
            </ToolDataItem>
            
            <ToolDataItem
               Key="OpTimeStamp">
               
               <OpToolDataDate>
                  
                  <Time>1084426877108</Time>
               </OpToolDataDate>
            </ToolDataItem>
         </ToolData>
         
         <GuidingTolerance>
            
            <Angle />
         </GuidingTolerance>
         
         <Orient>
            
            <From
               Degrees="69.0" />
            
            <To
               Degrees="73.0" />
         </Orient>
         
         <Orient>
            
            <From
               Degrees="249.0" />
            
            <To
               Degrees="253.0" />
         </Orient>
         
         <Between>
            
            <Start
               Year="2004"
               Month="8"
               Day="18"
               Hrs="18"
               Mins="14"
               Secs="24" />
            
            <End
               Year="2004"
               Month="8"
               Day="22"
               Hrs="11"
               Mins="14"
               Secs="24" />
         </Between>
         
         <OnHold
            OnHold="true" />
         
         <OnHoldComments>Schedule any one of these pairs of visits: 10+11, 10+12, 10+13, 10+14, 10+15, 10+16, A0+A1, B0+B1, C0+C1, D0+D1, E0+E1, F0+F1. This set of options expresses the requirement that one visit (10, A1, B1, C1, D1, E1, or F1) falls within 48 hours of opposition (18:00 UT on 27 August) and the other falls either before or after it by a half-integral number of orbits of the moon S/2003 U 2. This cumbersome set of options is necessary because APT provides an "After Visit" clause but not a "Before Visit" clause (and "After Visit" doesn't accept negative numbers).</OnHoldComments>
         
         <ExposureGroup
            Type="Sequence">
            
            <Exposure
               Number="1"
               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="CLEAR"
               NumberOfIterations="1"
               TimePerExposure="1000.0"
               RealtimeAnalysis="false"
               RequiresUplink="false"
               Expand="false"
               LowSky="false"
               Shadow="false"
               NewAlignment="false"
               NewObset="false"
               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <Comments />
               
               <InstrumentParameters
                  CR-SPLIT="4" />
               
               <SubExposures>
                  
                  <SubExposure
                     SplitNumber="1"
                     OrbitNumber="1" />
                  
                  <SubExposure
                     SplitNumber="2"
                     OrbitNumber="1" />
                  
                  <SubExposure
                     SplitNumber="3"
                     OrbitNumber="1" />
                  
                  <SubExposure
                     SplitNumber="4"
                     OrbitNumber="1" />
               </SubExposures>
            </Exposure>
            
            <Exposure
               Number="2"
               Label="F814W, 60 sec"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="F814W"
               NumberOfIterations="1"
               TimePerExposure="60.0"
               RealtimeAnalysis="false"
               RequiresUplink="false"
               Expand="false"
               LowSky="false"
               Shadow="false"
               NewAlignment="false"
               NewObset="false"
               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
                  <SubExposure
                     OrbitNumber="1" />
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            <Exposure
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      <Visit
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         Schedulability="100">
         
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         <Comments>Deep search for moons within 48 hours of opposition (phase angle &lt; 0.11 degrees).  Note that all five orbits must be consecutive to provide complete orbital coverage.  Rings oriented along the HRC X-axis. For CLEAR-filter images, Uranus is intentionally overexposed; blooming will be along the Y-axis and therefore perpendicular to the rings.  Standard ring photometry images in additional filters, some overexposed but most not, are carried out in the middle of each orbit.</Comments>
         
         <TicData>
            
            <TicFileString>
(Tic-Visit
 :proposal-id 10102
 :visit-id "D1"
 :proposal-version -1
 :trans-version "20040225"
 :date "12-May-2004 22:45:36.0"
 :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
                 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
 :number-of-orbits 5
 :saa-model "27"
 :si-bright-earth-limb-angle 20.0
 :data-volume 883280
 :tdrss-contact-duration 0
 )

(Tic-Obset
 :proposal-id 10102
 :visit-id "D1"
 :obset-id "D1"
 :pcs-mode "FGS"
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "D1"
 :orbit-number 1
 :pcs-time 365
 :si-vis-utilization 2635
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "D1"
 :orbit-number 2
 :pcs-time 300
 :si-vis-utilization 2700
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "D1"
 :orbit-number 3
 :pcs-time 300
 :si-vis-utilization 2700
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "D1"
 :orbit-number 4
 :pcs-time 300
 :si-vis-utilization 2698
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "D1"
 :orbit-number 5
 :pcs-time 300
 :si-vis-utilization 2700
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )
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         <ToolData>
            
            <ToolDataItem
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               <OpToolDataString>
                  
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               <OpToolDataDate>
                  
                  <Time>1084427187210</Time>
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         <GuidingTolerance>
            
            <Angle />
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         <Orient>
            
            <From
               Degrees="69.0" />
            
            <To
               Degrees="73.0" />
         </Orient>
         
         <Orient>
            
            <From
               Degrees="249.0" />
            
            <To
               Degrees="253.0" />
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         <AfterVisit
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            <From
               Days="6.94" />
            
            <To
               Days="7.04" />
         </AfterVisit>
         
         <OnHold
            OnHold="true" />
         
         <OnHoldComments>Schedule any one of these pairs of visits: 10+11, 10+12, 10+13, 10+14, 10+15, 10+16, A0+A1, B0+B1, C0+C1, D0+D1, E0+E1, F0+F1. This set of options expresses the requirement that one visit (10, A1, B1, C1, D1, E1, or F1) falls within 48 hours of opposition (18:00 UT on 27 August) and the other falls either before or after it by a half-integral number of orbits of the moon S/2003 U 2. This cumbersome set of options is necessary because APT provides an "After Visit" clause but not a "Before Visit" clause (and "After Visit" doesn't accept negative numbers).</OnHoldComments>
         
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               Label="CLEAR, 250 sec x 4"
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               TimePerExposure="1000.0"
               RealtimeAnalysis="false"
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               NewObsetFullAcq="false"
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               <MinDur />
               
               <InstrumentParameters
                  CR-SPLIT="4" />
               
               <SubExposures>
                  
                  <SubExposure
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                  <SubExposure
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            <Exposure
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               TimePerExposure="60.0"
               RealtimeAnalysis="false"
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               <InstrumentParameters
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               <MaxDur />
               
               <MinDur />
               
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               <InstrumentParameters
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               <SubExposures>
                  
                  <SubExposure
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                     OrbitNumber="2" />
                  
                  <SubExposure
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                     OrbitNumber="2" />
                  
                  <SubExposure
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                     OrbitNumber="2" />
                  
                  <SubExposure
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            </Exposure>
            
            <Exposure
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               Label="F475W, 110 sec"
               TargetName="URANUS-CENTER"
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               NewObsetFullAcq="false"
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               <MaxDur />
               
               <MinDur />
               
               <Comments />
               
               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
                  <SubExposure
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            </Exposure>
            
            <Exposure
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               Label="F606W, 10 sec"
               TargetName="URANUS-CENTER"
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               TimePerExposure="10.0"
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               NewObsetFullAcq="false"
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               <MaxDur />
               
               <MinDur />
               
               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
                  <SubExposure
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            <Exposure
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               <MinDur />
               
               <InstrumentParameters
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               <SubExposures>
                  
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                  <SubExposure
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         <ExposureGroup
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            <Exposure
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               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
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               <InstrumentParameters
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               NewObsetFullAcq="false"
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               <MaxDur />
               
               <MinDur />
               
               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
                  <SubExposure
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            <Exposure
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               TargetName="URANUS-CENTER"
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               Aperture="HRC-FIX"
               SpElement="F475W"
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               TimePerExposure="15.0"
               RealtimeAnalysis="false"
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               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <Comments />
               
               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
                  <SubExposure
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            <Exposure
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               TargetName="URANUS-CENTER"
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               TimePerExposure="1000.0"
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               NewObsetFullAcq="false"
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               <MaxDur />
               
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               <SubExposures>
                  
                  <SubExposure
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         <ExposureGroup
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            <Exposure
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               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
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               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="CLEAR"
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               TimePerExposure="1000.0"
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               <MaxDur />
               
               <MinDur />
               
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               <SubExposures>
                  
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                  <SubExposure
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                  <SubExposure
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            </Exposure>
            
            <Exposure
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               Label="F330W, 230 sec"
               TargetName="URANUS-CENTER"
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               SpElement="F330W"
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               TimePerExposure="230.0"
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               <MaxDur />
               
               <MinDur />
               
               <Comments />
               
               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
                  <SubExposure
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            </Exposure>
            
            <Exposure
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               Label="CLEAR, 250 sec x 4"
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               <InstrumentParameters
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                  <SubExposure
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         <ExposureGroup
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            <Exposure
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               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
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               Aperture="HRC-FIX"
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                  <SubExposure
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            <Exposure
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               Label="F606W, 45 sec"
               TargetName="URANUS-CENTER"
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               NewObsetFullAcq="false"
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               <MaxDur />
               
               <MinDur />
               
               <Comments />
               
               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
                  <SubExposure
                     OrbitNumber="5" />
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            </Exposure>
            
            <Exposure
               Number="17"
               Label="F814W, 60 sec"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="F814W"
               NumberOfIterations="1"
               TimePerExposure="60.0"
               RealtimeAnalysis="false"
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               Expand="false"
               LowSky="false"
               Shadow="false"
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               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <Comments />
               
               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
                  <SubExposure
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               </SubExposures>
            </Exposure>
            
            <Exposure
               Number="18"
               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="CLEAR"
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               TimePerExposure="1000.0"
               RealtimeAnalysis="false"
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               Expand="false"
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               Shadow="false"
               NewAlignment="false"
               NewObset="false"
               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <Comments />
               
               <InstrumentParameters
                  CR-SPLIT="4" />
               
               <SubExposures>
                  
                  <SubExposure
                     SplitNumber="1"
                     OrbitNumber="5" />
                  
                  <SubExposure
                     SplitNumber="2"
                     OrbitNumber="5" />
                  
                  <SubExposure
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                     OrbitNumber="5" />
                  
                  <SubExposure
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                     OrbitNumber="5" />
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         </ExposureGroup>
      </Visit>
      
      <Visit
         Number="E0"
         Schedulability="100">
         
         <ToolData>
            
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                  <Value>/Volumes/Data/Mark/Work/Uranus/Cycle 13 Phase II/Uranus_2004.apt/OP-cache/Uranus_2004-vE0.xml</Value>
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            <ToolDataItem
               Key="OpTimeStamp">
               
               <OpToolDataDate>
                  
                  <Time>1084463643025</Time>
               </OpToolDataDate>
            </ToolDataItem>
         </ToolData>
         
         <Comments>Deep search for moons, falling before Visit E1 (opposition) by 12.5 orbits of S/2003 U 2.</Comments>
         
         <TicData>
            
            <TicFileString>
(Tic-Visit
 :proposal-id 10102
 :visit-id "E0"
 :proposal-version -1
 :trans-version "20040225"
 :date "13-May-2004 08:53:21.0"
 :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
                 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
 :number-of-orbits 5
 :saa-model "27"
 :si-bright-earth-limb-angle 20.0
 :data-volume 883280
 :tdrss-contact-duration 0
 )

(Tic-Obset
 :proposal-id 10102
 :visit-id "E0"
 :obset-id "E0"
 :pcs-mode "FGS"
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "E0"
 :orbit-number 1
 :pcs-time 365
 :si-vis-utilization 2635
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "E0"
 :orbit-number 2
 :pcs-time 300
 :si-vis-utilization 2700
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "E0"
 :orbit-number 3
 :pcs-time 300
 :si-vis-utilization 2700
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "E0"
 :orbit-number 4
 :pcs-time 300
 :si-vis-utilization 2698
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "E0"
 :orbit-number 5
 :pcs-time 300
 :si-vis-utilization 2700
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )
</TicFileString>
            
            <TicDataCurrent>true</TicDataCurrent>
         </TicData>
         
         <ToolData>
            
            <ToolDataItem
               Key="OpVisitCacheFile">
               
               <OpToolDataString>
                  
                  <Value>/Volumes/Data/Mark/Work/Uranus/Cycle 13 Phase II/Uranus_2004.apt/OP-cache/Uranus_2004-vE0.xml</Value>
               </OpToolDataString>
            </ToolDataItem>
            
            <ToolDataItem
               Key="OpTimeStamp">
               
               <OpToolDataDate>
                  
                  <Time>1084463643025</Time>
               </OpToolDataDate>
            </ToolDataItem>
         </ToolData>
         
         <GuidingTolerance>
            
            <Angle />
         </GuidingTolerance>
         
         <Orient>
            
            <From
               Degrees="69.0" />
            
            <To
               Degrees="73.0" />
         </Orient>
         
         <Orient>
            
            <From
               Degrees="249.0" />
            
            <To
               Degrees="253.0" />
         </Orient>
         
         <Between>
            
            <Start
               Year="2004"
               Month="8"
               Day="18"
               Hrs="3"
               Mins="36"
               Secs="0" />
            
            <End
               Year="2004"
               Month="8"
               Day="21"
               Hrs="20"
               Mins="36"
               Secs="0" />
         </Between>
         
         <OnHold
            OnHold="true" />
         
         <OnHoldComments>Schedule any one of these pairs of visits: 10+11, 10+12, 10+13, 10+14, 10+15, 10+16, A0+A1, B0+B1, C0+C1, D0+D1, E0+E1, F0+F1. This set of options expresses the requirement that one visit (10, A1, B1, C1, D1, E1, or F1) falls within 48 hours of opposition (18:00 UT on 27 August) and the other falls either before or after it by a half-integral number of orbits of the moon S/2003 U 2. This cumbersome set of options is necessary because APT provides an "After Visit" clause but not a "Before Visit" clause (and "After Visit" doesn't accept negative numbers).</OnHoldComments>
         
         <ExposureGroup
            Type="Sequence">
            
            <Exposure
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               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="CLEAR"
               NumberOfIterations="1"
               TimePerExposure="1000.0"
               RealtimeAnalysis="false"
               RequiresUplink="false"
               Expand="false"
               LowSky="false"
               Shadow="false"
               NewAlignment="false"
               NewObset="false"
               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <Comments />
               
               <InstrumentParameters
                  CR-SPLIT="4" />
               
               <SubExposures>
                  
                  <SubExposure
                     SplitNumber="1"
                     OrbitNumber="1" />
                  
                  <SubExposure
                     SplitNumber="2"
                     OrbitNumber="1" />
                  
                  <SubExposure
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                     OrbitNumber="1" />
                  
                  <SubExposure
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                     OrbitNumber="1" />
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            </Exposure>
            
            <Exposure
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               Label="F814W, 60 sec"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="F814W"
               NumberOfIterations="1"
               TimePerExposure="60.0"
               RealtimeAnalysis="false"
               RequiresUplink="false"
               Expand="false"
               LowSky="false"
               Shadow="false"
               NewAlignment="false"
               NewObset="false"
               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
                  <SubExposure
                     OrbitNumber="1" />
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            </Exposure>
            
            <Exposure
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               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
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               Aperture="HRC-FIX"
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               TimePerExposure="1000.0"
               RealtimeAnalysis="false"
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               Expand="false"
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               NewObsetFullAcq="false"
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                  CR-SPLIT="4" />
               
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                  <SubExposure
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         </ExposureGroup>
         
         <ExposureGroup
            Type="Sequence">
            
            <Exposure
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               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
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               Aperture="HRC-FIX"
               SpElement="CLEAR"
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               TimePerExposure="1000.0"
               RealtimeAnalysis="false"
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               LowSky="false"
               Shadow="false"
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               NewObsetFullAcq="false"
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               <MaxDur />
               
               <MinDur />
               
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                  CR-SPLIT="4" />
               
               <SubExposures>
                  
                  <SubExposure
                     SplitNumber="1"
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                  <SubExposure
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                     OrbitNumber="2" />
                  
                  <SubExposure
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                  <SubExposure
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            </Exposure>
            
            <Exposure
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               TargetName="URANUS-CENTER"
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               TimePerExposure="110.0"
               RealtimeAnalysis="false"
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               NewObsetFullAcq="false"
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                  CR-SPLIT="NO" />
               
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                  <SubExposure
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            </Exposure>
            
            <Exposure
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               TargetName="URANUS-CENTER"
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               NewObsetFullAcq="false"
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               <MinDur />
               
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               <InstrumentParameters
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               <SubExposures>
                  
                  <SubExposure
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               <InstrumentParameters
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            <Exposure
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               Label="F814W, 60 sec"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
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            <Exposure
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               <SubExposures>
                  
                  <SubExposure
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         </ExposureGroup>
      </Visit>
      
      <Visit
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         Schedulability="100">
         
         <ToolData>
            
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                  <Value>/Volumes/Data/Mark/Work/Uranus/Cycle 13 Phase II/Uranus_2004.apt/OP-cache/Uranus_2004-vE1.xml</Value>
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            <ToolDataItem
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               <OpToolDataDate>
                  
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         <Comments>Deep search for moons within 48 hours of opposition (phase angle &lt; 0.11 degrees).  Note that all five orbits must be consecutive to provide complete orbital coverage.  Rings oriented along the HRC X-axis. For CLEAR-filter images, Uranus is intentionally overexposed; blooming will be along the Y-axis and therefore perpendicular to the rings.  Standard ring photometry images in additional filters, some overexposed but most not, are carried out in the middle of each orbit.</Comments>
         
         <TicData>
            
            <TicFileString>
(Tic-Visit
 :proposal-id 10102
 :visit-id "E1"
 :proposal-version -1
 :trans-version "20040225"
 :date "13-May-2004 16:24:16.0"
 :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
                 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
 :number-of-orbits 5
 :saa-model "27"
 :si-bright-earth-limb-angle 20.0
 :data-volume 883280
 :tdrss-contact-duration 0
 )

(Tic-Obset
 :proposal-id 10102
 :visit-id "E1"
 :obset-id "E1"
 :pcs-mode "FGS"
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "E1"
 :orbit-number 1
 :pcs-time 365
 :si-vis-utilization 2635
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "E1"
 :orbit-number 2
 :pcs-time 300
 :si-vis-utilization 2700
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "E1"
 :orbit-number 3
 :pcs-time 300
 :si-vis-utilization 2700
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "E1"
 :orbit-number 4
 :pcs-time 300
 :si-vis-utilization 2698
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "E1"
 :orbit-number 5
 :pcs-time 300
 :si-vis-utilization 2700
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )
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            <TicDataCurrent>true</TicDataCurrent>
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         <ToolData>
            
            <ToolDataItem
               Key="OpVisitCacheFile">
               
               <OpToolDataString>
                  
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               <OpToolDataDate>
                  
                  <Time>1084490691770</Time>
               </OpToolDataDate>
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         <GuidingTolerance>
            
            <Angle />
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         <Orient>
            
            <From
               Degrees="69.0" />
            
            <To
               Degrees="73.0" />
         </Orient>
         
         <Orient>
            
            <From
               Degrees="249.0" />
            
            <To
               Degrees="253.0" />
         </Orient>
         
         <AfterVisit
            Visit="E0">
            
            <From
               Days="7.55" />
            
            <To
               Days="7.65" />
         </AfterVisit>
         
         <OnHold
            OnHold="true" />
         
         <OnHoldComments>Schedule any one of these pairs of visits: 10+11, 10+12, 10+13, 10+14, 10+15, 10+16, A0+A1, B0+B1, C0+C1, D0+D1, E0+E1, F0+F1. This set of options expresses the requirement that one visit (10, A1, B1, C1, D1, E1, or F1) falls within 48 hours of opposition (18:00 UT on 27 August) and the other falls either before or after it by a half-integral number of orbits of the moon S/2003 U 2. This cumbersome set of options is necessary because APT provides an "After Visit" clause but not a "Before Visit" clause (and "After Visit" doesn't accept negative numbers).</OnHoldComments>
         
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               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
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               Aperture="HRC-FIX"
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               TimePerExposure="1000.0"
               RealtimeAnalysis="false"
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               Expand="false"
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               NewObsetFullAcq="false"
               SpecialCommand="false">
               
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               <MinDur />
               
               <InstrumentParameters
                  CR-SPLIT="4" />
               
               <SubExposures>
                  
                  <SubExposure
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                     OrbitNumber="1" />
                  
                  <SubExposure
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                     OrbitNumber="1" />
                  
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                  <SubExposure
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            <Exposure
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               Label="F814W, 60 sec"
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               TimePerExposure="60.0"
               RealtimeAnalysis="false"
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               <InstrumentParameters
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            <Exposure
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         <ExposureGroup
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         </ExposureGroup>
         
         <ExposureGroup
            Type="Sequence">
            
            <Exposure
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               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
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               NewObsetFullAcq="false"
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               <MinDur />
               
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               <InstrumentParameters
                  CR-SPLIT="4" />
               
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                  <SubExposure
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                     OrbitNumber="3" />
                  
                  <SubExposure
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               Label="F814W, 60 sec"
               TargetName="URANUS-CENTER"
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               Opmode="ACCUM"
               Aperture="HRC-FIX"
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               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
                  <SubExposure
                     OrbitNumber="3" />
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            </Exposure>
            
            <Exposure
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               Label="F475W, 15 sec"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="F475W"
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               TimePerExposure="15.0"
               RealtimeAnalysis="false"
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               Expand="false"
               LowSky="false"
               Shadow="false"
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               NewObset="false"
               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <Comments />
               
               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
                  <SubExposure
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            </Exposure>
            
            <Exposure
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               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="CLEAR"
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               TimePerExposure="1000.0"
               RealtimeAnalysis="false"
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               Expand="false"
               LowSky="false"
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               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <InstrumentParameters
                  CR-SPLIT="4" />
               
               <SubExposures>
                  
                  <SubExposure
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                  <SubExposure
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                  <SubExposure
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                     OrbitNumber="3" />
                  
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         <ExposureGroup
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            <Exposure
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               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
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               Aperture="HRC-FIX"
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               <MaxDur />
               
               <MinDur />
               
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               <SubExposures>
                  
                  <SubExposure
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                  <SubExposure
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                  <SubExposure
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            </Exposure>
            
            <Exposure
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               Label="F330W, 230 sec"
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               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <Comments />
               
               <InstrumentParameters
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               <SubExposures>
                  
                  <SubExposure
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            </Exposure>
            
            <Exposure
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               Label="CLEAR, 250 sec x 4"
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               LowSky="false"
               Shadow="false"
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               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <Comments />
               
               <InstrumentParameters
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               <SubExposures>
                  
                  <SubExposure
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                  <SubExposure
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                     OrbitNumber="4" />
                  
                  <SubExposure
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                  <SubExposure
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         </ExposureGroup>
         
         <ExposureGroup
            Type="Sequence">
            
            <Exposure
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               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
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               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="CLEAR"
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               RealtimeAnalysis="false"
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               <SubExposures>
                  
                  <SubExposure
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                  <SubExposure
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                  <SubExposure
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            <Exposure
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               Label="F606W, 45 sec"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
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               Aperture="HRC-FIX"
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               TimePerExposure="45.0"
               RealtimeAnalysis="false"
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               NewObsetFullAcq="false"
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               <MinDur />
               
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               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
                  <SubExposure
                     OrbitNumber="5" />
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            </Exposure>
            
            <Exposure
               Number="17"
               Label="F814W, 60 sec"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="F814W"
               NumberOfIterations="1"
               TimePerExposure="60.0"
               RealtimeAnalysis="false"
               RequiresUplink="false"
               Expand="false"
               LowSky="false"
               Shadow="false"
               NewAlignment="false"
               NewObset="false"
               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <Comments />
               
               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
                  <SubExposure
                     OrbitNumber="5" />
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            </Exposure>
            
            <Exposure
               Number="18"
               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="CLEAR"
               NumberOfIterations="1"
               TimePerExposure="1000.0"
               RealtimeAnalysis="false"
               RequiresUplink="false"
               Expand="false"
               LowSky="false"
               Shadow="false"
               NewAlignment="false"
               NewObset="false"
               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <Comments />
               
               <InstrumentParameters
                  CR-SPLIT="4" />
               
               <SubExposures>
                  
                  <SubExposure
                     SplitNumber="1"
                     OrbitNumber="5" />
                  
                  <SubExposure
                     SplitNumber="2"
                     OrbitNumber="5" />
                  
                  <SubExposure
                     SplitNumber="3"
                     OrbitNumber="5" />
                  
                  <SubExposure
                     SplitNumber="4"
                     OrbitNumber="5" />
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            </Exposure>
         </ExposureGroup>
      </Visit>
      
      <Visit
         Number="F0"
         Schedulability="100">
         
         <ToolData>
            
            <ToolDataItem
               Key="OpVisitCacheFile">
               
               <OpToolDataString>
                  
                  <Value>/Volumes/Data/Mark/Work/Uranus/Cycle 13 Phase II/Uranus_2004.apt/OP-cache/Uranus_2004-vF0.xml</Value>
               </OpToolDataString>
            </ToolDataItem>
            
            <ToolDataItem
               Key="OpTimeStamp">
               
               <OpToolDataDate>
                  
                  <Time>1084490901346</Time>
               </OpToolDataDate>
            </ToolDataItem>
         </ToolData>
         
         <Comments>Deep search for moons, falling before Visit F1 (opposition) by 13.5 orbits of S/2003 U 2.</Comments>
         
         <TicData>
            
            <TicFileString>
(Tic-Visit
 :proposal-id 10102
 :visit-id "F0"
 :proposal-version -1
 :trans-version "20040225"
 :date "13-May-2004 16:27:54.0"
 :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
                 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
 :number-of-orbits 5
 :saa-model "27"
 :si-bright-earth-limb-angle 20.0
 :data-volume 883280
 :tdrss-contact-duration 0
 )

(Tic-Obset
 :proposal-id 10102
 :visit-id "F0"
 :obset-id "F0"
 :pcs-mode "FGS"
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "F0"
 :orbit-number 1
 :pcs-time 365
 :si-vis-utilization 2635
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "F0"
 :orbit-number 2
 :pcs-time 300
 :si-vis-utilization 2700
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "F0"
 :orbit-number 3
 :pcs-time 300
 :si-vis-utilization 2700
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "F0"
 :orbit-number 4
 :pcs-time 300
 :si-vis-utilization 2698
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "F0"
 :orbit-number 5
 :pcs-time 300
 :si-vis-utilization 2700
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )
</TicFileString>
            
            <TicDataCurrent>true</TicDataCurrent>
         </TicData>
         
         <ToolData>
            
            <ToolDataItem
               Key="OpVisitCacheFile">
               
               <OpToolDataString>
                  
                  <Value>/private/tmp/OPVisit33330.xml</Value>
               </OpToolDataString>
            </ToolDataItem>
            
            <ToolDataItem
               Key="OpTimeStamp">
               
               <OpToolDataDate>
                  
                  <Time>1084490901346</Time>
               </OpToolDataDate>
            </ToolDataItem>
         </ToolData>
         
         <GuidingTolerance>
            
            <Angle />
         </GuidingTolerance>
         
         <Orient>
            
            <From
               Degrees="69.0" />
            
            <To
               Degrees="73.0" />
         </Orient>
         
         <Orient>
            
            <From
               Degrees="249.0" />
            
            <To
               Degrees="253.0" />
         </Orient>
         
         <Between>
            
            <Start
               Year="2004"
               Month="8"
               Day="17"
               Hrs="12"
               Mins="57"
               Secs="36" />
            
            <End
               Year="2004"
               Month="8"
               Day="21"
               Hrs="5"
               Mins="57"
               Secs="36" />
         </Between>
         
         <OnHold
            OnHold="true" />
         
         <OnHoldComments>Schedule any one of these pairs of visits: 10+11, 10+12, 10+13, 10+14, 10+15, 10+16, A0+A1, B0+B1, C0+C1, D0+D1, E0+E1, F0+F1. This set of options expresses the requirement that one visit (10, A1, B1, C1, D1, E1, or F1) falls within 48 hours of opposition (18:00 UT on 27 August) and the other falls either before or after it by a half-integral number of orbits of the moon S/2003 U 2. This cumbersome set of options is necessary because APT provides an "After Visit" clause but not a "Before Visit" clause (and "After Visit" doesn't accept negative numbers).</OnHoldComments>
         
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            Type="Sequence">
            
            <Exposure
               Number="1"
               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="CLEAR"
               NumberOfIterations="1"
               TimePerExposure="1000.0"
               RealtimeAnalysis="false"
               RequiresUplink="false"
               Expand="false"
               LowSky="false"
               Shadow="false"
               NewAlignment="false"
               NewObset="false"
               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <Comments />
               
               <InstrumentParameters
                  CR-SPLIT="4" />
               
               <SubExposures>
                  
                  <SubExposure
                     SplitNumber="1"
                     OrbitNumber="1" />
                  
                  <SubExposure
                     SplitNumber="2"
                     OrbitNumber="1" />
                  
                  <SubExposure
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                     OrbitNumber="1" />
                  
                  <SubExposure
                     SplitNumber="4"
                     OrbitNumber="1" />
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            </Exposure>
            
            <Exposure
               Number="2"
               Label="F814W, 60 sec"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="F814W"
               NumberOfIterations="1"
               TimePerExposure="60.0"
               RealtimeAnalysis="false"
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               Expand="false"
               LowSky="false"
               Shadow="false"
               NewAlignment="false"
               NewObset="false"
               NewObsetFullAcq="false"
               SpecialCommand="false">
               
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               <MinDur />
               
               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
                  <SubExposure
                     OrbitNumber="1" />
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            </Exposure>
            
            <Exposure
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               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
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               RealtimeAnalysis="false"
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               Expand="false"
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                  CR-SPLIT="4" />
               
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                  <SubExposure
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         </ExposureGroup>
         
         <ExposureGroup
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            <Exposure
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               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
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               Aperture="HRC-FIX"
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               RealtimeAnalysis="false"
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               NewObsetFullAcq="false"
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               <MaxDur />
               
               <MinDur />
               
               <InstrumentParameters
                  CR-SPLIT="4" />
               
               <SubExposures>
                  
                  <SubExposure
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                  <SubExposure
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                     OrbitNumber="2" />
                  
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            </Exposure>
            
            <Exposure
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               Label="F475W, 110 sec"
               TargetName="URANUS-CENTER"
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               <MaxDur />
               
               <MinDur />
               
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                  <SubExposure
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            <Exposure
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               Label="F606W, 10 sec"
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               <MaxDur />
               
               <MinDur />
               
               <Comments />
               
               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
                  <SubExposure
                     OrbitNumber="2" />
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            </Exposure>
            
            <Exposure
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               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
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               RealtimeAnalysis="false"
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               NewObsetFullAcq="false"
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               <MaxDur />
               
               <MinDur />
               
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               <InstrumentParameters
                  CR-SPLIT="4" />
               
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                  <SubExposure
                     SplitNumber="1"
                     OrbitNumber="2" />
                  
                  <SubExposure
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                     OrbitNumber="2" />
                  
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                     OrbitNumber="2" />
                  
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                     OrbitNumber="2" />
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         </ExposureGroup>
         
         <ExposureGroup
            Type="Sequence">
            
            <Exposure
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               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="CLEAR"
               NumberOfIterations="1"
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               RealtimeAnalysis="false"
               RequiresUplink="false"
               Expand="false"
               LowSky="false"
               Shadow="false"
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               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <InstrumentParameters
                  CR-SPLIT="4" />
               
               <SubExposures>
                  
                  <SubExposure
                     SplitNumber="1"
                     OrbitNumber="3" />
                  
                  <SubExposure
                     SplitNumber="2"
                     OrbitNumber="3" />
                  
                  <SubExposure
                     SplitNumber="3"
                     OrbitNumber="3" />
                  
                  <SubExposure
                     SplitNumber="4"
                     OrbitNumber="3" />
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            </Exposure>
            
            <Exposure
               Number="9"
               Label="F814W, 60 sec"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="F814W"
               NumberOfIterations="1"
               TimePerExposure="60.0"
               RealtimeAnalysis="false"
               RequiresUplink="false"
               Expand="false"
               LowSky="false"
               Shadow="false"
               NewAlignment="false"
               NewObset="false"
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               <SubExposures>
                  
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               Label="F475W, 15 sec"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="F475W"
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               TimePerExposure="15.0"
               RealtimeAnalysis="false"
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               NewObsetFullAcq="false"
               SpecialCommand="false">
               
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               <MinDur />
               
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         <ExposureGroup
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               TargetName="URANUS-CENTER"
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         <ExposureGroup
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                  <SubExposure
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            <Exposure
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               Label="F606W, 45 sec"
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               NewObsetFullAcq="false"
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               <MaxDur />
               
               <MinDur />
               
               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
                  <SubExposure
                     OrbitNumber="5" />
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            </Exposure>
            
            <Exposure
               Number="17"
               Label="F814W, 60 sec"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="F814W"
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               TimePerExposure="60.0"
               RealtimeAnalysis="false"
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               Expand="false"
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               NewObsetFullAcq="false"
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               <InstrumentParameters
                  CR-SPLIT="NO" />
               
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                  <SubExposure
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            <Exposure
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               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
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               LowSky="false"
               Shadow="false"
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               NewObset="false"
               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <InstrumentParameters
                  CR-SPLIT="4" />
               
               <SubExposures>
                  
                  <SubExposure
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                  <SubExposure
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                     OrbitNumber="5" />
                  
                  <SubExposure
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                     OrbitNumber="5" />
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            </Exposure>
         </ExposureGroup>
      </Visit>
      
      <Visit
         Number="F1"
         Schedulability="100">
         
         <ToolData>
            
            <ToolDataItem
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                  <Value>/Volumes/Data/Mark/Work/Uranus/Cycle 13 Phase II/Uranus_2004.apt/OP-cache/Uranus_2004-vF1.xml</Value>
               </OpToolDataString>
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            <ToolDataItem
               Key="OpTimeStamp">
               
               <OpToolDataDate>
                  
                  <Time>1084491053390</Time>
               </OpToolDataDate>
            </ToolDataItem>
         </ToolData>
         
         <Comments>Deep search for moons within 48 hours of opposition (phase angle &lt; 0.11 degrees).  Note that all five orbits must be consecutive to provide complete orbital coverage.  Rings oriented along the HRC X-axis. For CLEAR-filter images, Uranus is intentionally overexposed; blooming will be along the Y-axis and therefore perpendicular to the rings.  Standard ring photometry images in additional filters, some overexposed but most not, are carried out in the middle of each orbit.</Comments>
         
         <TicData>
            
            <TicFileString>
(Tic-Visit
 :proposal-id 10102
 :visit-id "F1"
 :proposal-version -1
 :trans-version "20040225"
 :date "13-May-2004 16:30:26.0"
 :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
                 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
 :number-of-orbits 5
 :saa-model "27"
 :si-bright-earth-limb-angle 20.0
 :data-volume 883280
 :tdrss-contact-duration 0
 )

(Tic-Obset
 :proposal-id 10102
 :visit-id "F1"
 :obset-id "F1"
 :pcs-mode "FGS"
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "F1"
 :orbit-number 1
 :pcs-time 365
 :si-vis-utilization 2635
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "F1"
 :orbit-number 2
 :pcs-time 300
 :si-vis-utilization 2700
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "F1"
 :orbit-number 3
 :pcs-time 300
 :si-vis-utilization 2700
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "F1"
 :orbit-number 4
 :pcs-time 300
 :si-vis-utilization 2698
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )

(Tic-Orbit
 :proposal-id 10102
 :visit-id "F1"
 :orbit-number 5
 :pcs-time 300
 :si-vis-utilization 2700
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3004
 :pcs-gap 0
 )
</TicFileString>
            
            <TicDataCurrent>true</TicDataCurrent>
         </TicData>
         
         <ToolData>
            
            <ToolDataItem
               Key="OpVisitCacheFile">
               
               <OpToolDataString>
                  
                  <Value>/Volumes/Data/Mark/Work/Uranus/Cycle 13 Phase II/Uranus_2004.apt/OP-cache/Uranus_2004-vF1.xml</Value>
               </OpToolDataString>
            </ToolDataItem>
            
            <ToolDataItem
               Key="OpTimeStamp">
               
               <OpToolDataDate>
                  
                  <Time>1084491053390</Time>
               </OpToolDataDate>
            </ToolDataItem>
         </ToolData>
         
         <GuidingTolerance>
            
            <Angle />
         </GuidingTolerance>
         
         <Orient>
            
            <From
               Degrees="69.0" />
            
            <To
               Degrees="73.0" />
         </Orient>
         
         <Orient>
            
            <From
               Degrees="249.0" />
            
            <To
               Degrees="253.0" />
         </Orient>
         
         <AfterVisit
            Visit="F0">
            
            <From
               Days="8.16" />
            
            <To
               Days="8.26" />
         </AfterVisit>
         
         <OnHold
            OnHold="true" />
         
         <OnHoldComments>Schedule any one of these pairs of visits: 10+11, 10+12, 10+13, 10+14, 10+15, 10+16, A0+A1, B0+B1, C0+C1, D0+D1, E0+E1, F0+F1. This set of options expresses the requirement that one visit (10, A1, B1, C1, D1, E1, or F1) falls within 48 hours of opposition (18:00 UT on 27 August) and the other falls either before or after it by a half-integral number of orbits of the moon S/2003 U 2. This cumbersome set of options is necessary because APT provides an "After Visit" clause but not a "Before Visit" clause (and "After Visit" doesn't accept negative numbers).</OnHoldComments>
         
         <ExposureGroup
            Type="Sequence">
            
            <Exposure
               Number="1"
               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="CLEAR"
               NumberOfIterations="1"
               TimePerExposure="1000.0"
               RealtimeAnalysis="false"
               RequiresUplink="false"
               Expand="false"
               LowSky="false"
               Shadow="false"
               NewAlignment="false"
               NewObset="false"
               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <InstrumentParameters
                  CR-SPLIT="4" />
               
               <SubExposures>
                  
                  <SubExposure
                     SplitNumber="1"
                     OrbitNumber="1" />
                  
                  <SubExposure
                     SplitNumber="2"
                     OrbitNumber="1" />
                  
                  <SubExposure
                     SplitNumber="3"
                     OrbitNumber="1" />
                  
                  <SubExposure
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                     OrbitNumber="1" />
               </SubExposures>
            </Exposure>
            
            <Exposure
               Number="2"
               Label="F814W, 60 sec"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
               Aperture="HRC-FIX"
               SpElement="F814W"
               NumberOfIterations="1"
               TimePerExposure="60.0"
               RealtimeAnalysis="false"
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               Expand="false"
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               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <Comments />
               
               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
                  <SubExposure
                     OrbitNumber="1" />
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            </Exposure>
            
            <Exposure
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               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
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                  <SubExposure
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         <ExposureGroup
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               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
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                  <SubExposure
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               Label="F475W, 110 sec"
               TargetName="URANUS-CENTER"
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               RealtimeAnalysis="false"
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               NewObsetFullAcq="false"
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               <MaxDur />
               
               <MinDur />
               
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               <InstrumentParameters
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                  <SubExposure
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            <Exposure
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               Label="F606W, 10 sec"
               TargetName="URANUS-CENTER"
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               <SubExposures>
                  
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               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
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               TimePerExposure="1000.0"
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               Expand="false"
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               SpecialCommand="false">
               
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                     OrbitNumber="2" />
                  
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         <ExposureGroup
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               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
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               <InstrumentParameters
                  CR-SPLIT="4" />
               
               <SubExposures>
                  
                  <SubExposure
                     SplitNumber="1"
                     OrbitNumber="3" />
                  
                  <SubExposure
                     SplitNumber="2"
                     OrbitNumber="3" />
                  
                  <SubExposure
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                     OrbitNumber="3" />
                  
                  <SubExposure
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                     OrbitNumber="3" />
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            </Exposure>
            
            <Exposure
               Number="9"
               Label="F814W, 60 sec"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
               Opmode="ACCUM"
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               TimePerExposure="60.0"
               RealtimeAnalysis="false"
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               Expand="false"
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               NewObsetFullAcq="false"
               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
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                  CR-SPLIT="NO" />
               
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            <Exposure
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               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
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               SpecialCommand="false">
               
               <MaxDur />
               
               <MinDur />
               
               <Comments />
               
               <InstrumentParameters
                  CR-SPLIT="NO" />
               
               <SubExposures>
                  
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            <Exposure
               Number="11"
               Label="CLEAR, 250 sec x 4"
               TargetName="URANUS-CENTER"
               Config="ACS/HRC"
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         <Comments>Uranian rings after solar conjuncion, near phase = 2.9 degrees.  Rings open by about 7 degrees.  Ring ansa oriented horizontally along the HRC pixel grid.</Comments>
         
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 :low-sky "N"
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         <Between>
            
            <Start
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            <End
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