<?xml version="1.0" encoding="ISO-8859-1"?>

<HSTProposal
   Phase1ID="10918"
   Phase2ID="10918"
   Phase="Phase II"
   AptVersion="Version 16.0 ">
   <!--**********************************************************************************************************************-->
   <!--This file is automatically generated and should not be edited by hand. Editing this file directly is at your own risk.-->
   <!--**********************************************************************************************************************-->
   
   <ToolData>
      
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            IncludeSysInfo="true"
            NotificationAddress="barry@ociw.edu"
            AssignedID="10918">
            
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               os.version="10.4.8"
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            <SubmissionComments>put targets 1-2 back to the way they were.
updataed 3 back to IRCS
changed coord on target 3 (-5" dec) for guide star coverage.
added dithering 2.5 x 2.5 pixels
single guiding used on 55-61</SubmissionComments>
            
            <SubmissionLog>                    

----- Submission 1 (Tue May 09 17:12:21 GMT 2006) -----
  Phase II Proposal 10918 (wlf_phase2) successfully submitted.
----- Submission 2 (Wed May 10 21:24:20 GMT 2006) -----
  Phase II Proposal 10918 (wlf_phase2) successfully submitted.

----- Submission 3 (Fri May 12 18:59:14 GMT 2006) -----
  Phase II Proposal 10918 (wlf_phase2) successfully submitted.
----- Submission 4 (Fri May 12 20:29:15 GMT 2006) -----
  Phase II Proposal 10918 (wlf_phase2) successfully submitted.
----- Submission 6 (Fri May 19 17:47:05 GMT 2006) -----

----- Submission 7 (Tue Jul 11 18:52:20 GMT 2006) -----

----- Attempting Submission 10 (Wed Jan 31 15:54:52 EST 2007) -----
  Phase II Proposal 10918 (10918) successfully submitted.

----- Attempting Submission 11 (Wed Jan 31 16:52:25 EST 2007) -----

----- Attempting Submission 12 (Thu Feb 01 13:44:50 EST 2007) -----
  Phase II Proposal 10918 (10918) successfully submitted.

----- Attempting Submission 13 (Thu Feb 01 14:55:57 EST 2007) -----

----- Attempting Submission 15 (Fri Feb 02 14:12:03 EST 2007) -----

----- Attempting Submission 16 (Wed Feb 14 12:10:19 EST 2007) -----
</SubmissionLog>
            
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            IncludeSysInfo="true"
            NotificationAddress="wendy@ociw.edu"
            AssignedID="39">
            
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            <SubmissionComments />
            
            <SubmissionLog>                      
  Assigned ID: 39
----- Submission 1 (Mon Jan 23 22:39:33 GMT 2006) -----
  Phase I Proposal 39 (m83_2006) successfully submitted.

----- Submission 2 (Fri Jan 27 17:37:02 GMT 2006) -----
  Phase I Proposal 39 (m83_2006) successfully submitted.
----- Submission 3 (Fri Jan 27 19:47:01 GMT 2006) -----
  Phase I Proposal 39 (m83_2006) successfully submitted.
----- Submission 4 (Fri Jan 27 22:59:10 GMT 2006) -----









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            <DiagnosticJustification />
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   <ProposalInformation
      Category="GO"
      PureParallelProposal="false"
      Cycle="15"
      STScIEditNumber="0">
      
      <Title>Reducing Systematic Errors on the Hubble Constant: Metallicity Calibration of the Cepheid PL Relation</Title>
      
      <Abstract>Reducing the systematic errors on the Hubble constant is still of significance and of immediate importance to modern cosmology. One of the largest remaining uncertainties in the Cepheid-based distance scale  (which itself is at the foundation of the HST Key Project determination of H_o) which can now be addressed directly by HST, is the  effect of metallicity on the Cepheid Period-Luminosity relation. Three chemically distinct regions in M101 will be used to directly measure and thereby calibrate the change in zero point of the Cepheid PL relation over a range of metallicities that run from SMC-like, through Solar, to metallicities as high as the most metal-enriched galaxies in the pure Hubble flow.  ACS for the first time offers the opportunity to make a precise calibration of this effect which currently accounts for at least a third of the total systematic uncertainty on Ho. 
The calibration will be made in the V and I bandpasses so as to be immediately and directly applicable to the entire HST Cepheid-based distance scale sample, and most especially to the highest-metallicity galaxies that were hosts to the Type Ia supernovae, which were then used to extend the the distance scale calibration out to cosmologically significant distances.</Abstract>
      
      <PrincipalInvestigator
         Honorific="Dr."
         FirstName="Wendy"
         MiddleInitial="L."
         LastName="Freedman"
         ESAMember="false"
         UniqueID="704"
         AddressVerifiedCycle="15">
         
         <Address
            Institution="Carnegie Institution of Washington"
            USState="DC"
            Country="USA" />
      </PrincipalInvestigator>
      
      <CoInvestigator
         Honorific="Dr."
         FirstName="Barry"
         MiddleInitial="F."
         LastName="Madore"
         ESAMember="false"
         UniqueID="1750"
         AdminUSPI="false"
         Contact="false"
         AddressVerifiedCycle="15">
         
         <Address
            Institution="Carnegie Institution of Washington"
            USState="DC"
            Country="USA" />
      </CoInvestigator>
      
      <Questions>
         
         <Phase2Questions>
            
            <ObservingDescription>Three fields in M101 will be monitored in the V and I bandpasses searching
for Cepheids. A window of 45 days will be optimally sampled by 12 observations.
A single orbit containing both the V and the I exposures will reach the required
signal-to-noise ratio for the shortest-period (3-5 day) Cepheids</ObservingDescription>
            
            <RealtimeJustification />
            
            <CalibrationJustification />
            
            <AdditionalComments />
         </Phase2Questions>
      </Questions>
      
      <Orbits
         ThisCycle2GyroPrimary="36"
         ThisCycle2GyroParallel="36"
         NextCycle2GyroPrimary="3"
         NextCycle2GyroParallel="3"
         AfterNext2GyroPrimary="0"
         AfterNext2GyroParallel="0" />
      
      <Phase1ProposalInformation
         TotalTargets="1"
         Attachment="/Users/barry/wendy3.pdf">
         
         <ScientificCategory>COSMOLOGY</ScientificCategory>
         
         <ScientificKeyword1
            Keyword="CHEMICAL ABUNDANCES" />
         
         <ScientificKeyword2
            Keyword="COSMOLOGICAL PARAMETERS AND DISTANCE SCALE" />
         
         <ScientificKeyword3
            Keyword="VARIABLE AND PULSATING STARS" />
         
         <ProprietaryPeriod>12</ProprietaryPeriod>
         
         <CalibProp>false</CalibProp>
         
         <SpitzerHours>0.0</SpitzerHours>
         
         <Treasury>false</Treasury>
         
         <Legacy>false</Legacy>
         
         <Theory>false</Theory>
         
         <LargeProgram>false</LargeProgram>
         
         <Spitzer>false</Spitzer>
         
         <Survey>false</Survey>
      </Phase1ProposalInformation>
      
      <Phase2ProposalInformation
         PCFlag="true">
         
         <Availability>SUPPORTED</Availability>
      </Phase2ProposalInformation>
   </ProposalInformation>
   
   <Targets>
      
      <FixedTarget
         Name="M101-F1"
         Number="1"
         ReferenceFrame="ICRS">
         
         <PrimaryCategory>GALAXY</PrimaryCategory>
         
         <PrimaryDescription>
            
            <Description>SPIRAL ARM</Description>
            
            <Description>SPIRAL</Description>
            
            <Description>STAR FORMING REGION</Description>
         </PrimaryDescription>
         
         <Comments>This object was generated by the targetselector and retrieved from the NED database.
changed to IRCS coordinate frame since GSC2 is not recognized.</Comments>
         
         <Fluxes>
            
            <BroadBandMagnitude
               Band="V"
               Magnitude="23"
               MagnitudeUnc="2" />
         </Fluxes>
         
         <AlternateNames />
         
         <EquatorialPosition>
            
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               Hrs="14"
               Mins="03"
               Secs="28.8000" />
            
            <RAUnc
               Arcsec="0.1" />
            
            <DEC
               Degrees="+54"
               Arcmin="21"
               Arcsec="35.00" />
            
            <DECUnc
               Arcsec="0.1" />
            
            <Equinox>J2000</Equinox>
         </EquatorialPosition>
         
         <ProvisionalRA>14 03 28.8000</ProvisionalRA>
         
         <ProvisionalDEC>+54 21 35.00</ProvisionalDEC>
         
         <Equinox>J2000</Equinox>
      </FixedTarget>
      
      <FixedTarget
         Name="M101-F2"
         Number="2"
         ReferenceFrame="ICRS">
         
         <PrimaryCategory>GALAXY</PrimaryCategory>
         
         <PrimaryDescription>
            
            <Description>SPIRAL ARM</Description>
            
            <Description>STAR FORMING REGION</Description>
            
            <Description>SPIRAL</Description>
         </PrimaryDescription>
         
         <Comments>changed to IRCS coordinate frame since GSC2 is not recognized.</Comments>
         
         <Fluxes>
            
            <BroadBandMagnitude
               Band="V"
               Magnitude="23"
               MagnitudeUnc="2" />
         </Fluxes>
         
         <AlternateNames />
         
         <EquatorialPosition>
            
            <RA
               Hrs="14"
               Mins="02"
               Secs="51.0000" />
            
            <RAUnc
               Arcsec="0.1" />
            
            <DEC
               Degrees="+54"
               Arcmin="20"
               Arcsec="22.00" />
            
            <DECUnc
               Arcsec="0.1" />
            
            <Equinox>J2000</Equinox>
         </EquatorialPosition>
         
         <ProvisionalRA>14 02 51.0000</ProvisionalRA>
         
         <ProvisionalDEC>+54 20 22.00</ProvisionalDEC>
         
         <Equinox>J2000</Equinox>
      </FixedTarget>
      
      <FixedTarget
         Name="M101-F3"
         Number="3"
         ReferenceFrame="ICRS">
         
         <PrimaryCategory>GALAXY</PrimaryCategory>
         
         <PrimaryDescription>
            
            <Description>STAR FORMING REGION</Description>
            
            <Description>SPIRAL ARM</Description>
            
            <Description>SPIRAL</Description>
         </PrimaryDescription>
         
         <Comments>These coordinates have been changed from 14 02 29.0, 
+54 18 20, to acquire guide star coverage.</Comments>
         
         <Fluxes>
            
            <BroadBandMagnitude
               Band="V"
               Magnitude="23"
               MagnitudeUnc="2" />
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         <AlternateNames />
         
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               Arcmin="18"
               Arcsec="20.00" />
            
            <DECUnc
               Arcsec="0.1" />
            
            <Equinox>J2000</Equinox>
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         <ProvisionalRA>14 02 29.0000</ProvisionalRA>
         
         <ProvisionalDEC>+54 18 20.00</ProvisionalDEC>
         
         <Equinox>J2000</Equinox>
      </FixedTarget>
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            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
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               <SpectralElement>F555W</SpectralElement>
            </Configuration>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F814W</SpectralElement>
            </Configuration>
         </Configurations>
         
         <ObservationRequirements
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            <Configuration>
               
               <Config>ACS/WFC</Config>
               
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            <Configuration>
               
               <Config>ACS/WFC</Config>
               
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            SameOrient="true">
            
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                  Days="0.9" />
               
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            <Configuration>
               
               <Config>ACS/WFC</Config>
               
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               <Config>ACS/WFC</Config>
               
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                  Days="2.0" />
               
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                  Days="3.2" />
               
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                  Days="4.0" />
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               <Config>ACS/WFC</Config>
               
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            <Configuration>
               
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            <Configuration>
               
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            <Configuration>
               
               <Config>ACS/WFC</Config>
               
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            DaysLow="0"
            Visibility=""
            OrbitsPerDay="0.02"
            ObservationRequirements="SAMEORIENT; AFTER  1 BY 16.1D TO 19.5D" />
      </Observation>
      
      <Observation
         TargetName="M101-F1"
         Instrument="ACS"
         Number="10"
         NumberOfOrbits="1"
         NumberOfIterations="1"
         TotalOrbits="1"
         PureParallel="false"
         CoordinatedParallel="false"
         TargetOfOpportunity="false"
         CVZ="false"
         Duplication="false">
         
         <Configurations>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F814W</SpectralElement>
            </Configuration>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F555W</SpectralElement>
            </Configuration>
         </Configurations>
         
         <ObservationRequirements
            NoConstraints="false"
            Shadow="false"
            LowSky="false"
            SameOrient="true">
            
            <AfterObservation
               Observation="1">
               
               <From
                  Days="21.0" />
               
               <To
                  Days="25.6" />
            </AfterObservation>
         </ObservationRequirements>
         
         <SuitabilityResults
            DaysHigh="64"
            DaysHighMed="135"
            DaysLowMed="15"
            DaysLow="0"
            Visibility=""
            OrbitsPerDay="0.02"
            ObservationRequirements="SAMEORIENT; AFTER  1 BY 21D TO 25.6D" />
      </Observation>
      
      <Observation
         TargetName="M101-F1"
         Instrument="ACS"
         Number="11"
         NumberOfOrbits="1"
         NumberOfIterations="1"
         TotalOrbits="1"
         PureParallel="false"
         CoordinatedParallel="false"
         TargetOfOpportunity="false"
         CVZ="false"
         Duplication="false">
         
         <Configurations>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F555W</SpectralElement>
            </Configuration>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F814W</SpectralElement>
            </Configuration>
         </Configurations>
         
         <ObservationRequirements
            NoConstraints="false"
            Shadow="false"
            LowSky="false"
            SameOrient="true">
            
            <AfterObservation
               Observation="1">
               
               <From
                  Days="27.5" />
               
               <To
                  Days="33.5" />
            </AfterObservation>
         </ObservationRequirements>
         
         <SuitabilityResults
            DaysHigh="63"
            DaysHighMed="135"
            DaysLowMed="15"
            DaysLow="0"
            Visibility=""
            OrbitsPerDay="0.02"
            ObservationRequirements="SAMEORIENT; AFTER  1 BY 27.5D TO 33.5D" />
      </Observation>
      
      <Observation
         TargetName="M101-F1"
         Instrument="ACS"
         Number="12"
         NumberOfOrbits="1"
         NumberOfIterations="1"
         TotalOrbits="1"
         PureParallel="false"
         CoordinatedParallel="false"
         TargetOfOpportunity="false"
         CVZ="false"
         Duplication="false">
         
         <Configurations>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F555W</SpectralElement>
            </Configuration>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F814W</SpectralElement>
            </Configuration>
         </Configurations>
         
         <ObservationRequirements
            NoConstraints="false"
            Shadow="false"
            LowSky="false"
            SameOrient="true">
            
            <AfterObservation
               Observation="1">
               
               <From
                  Days="36.0" />
               
               <To
                  Days="44.0" />
            </AfterObservation>
         </ObservationRequirements>
         
         <SuitabilityResults
            DaysHigh="61"
            DaysHighMed="127"
            DaysLowMed="29"
            DaysLow="0"
            Visibility=""
            OrbitsPerDay="0.02"
            ObservationRequirements="SAMEORIENT; AFTER  1 BY 36D TO 44D" />
      </Observation>
      
      <Observation
         TargetName="M101-F1"
         Instrument="WFPC2"
         Number="13"
         NumberOfOrbits="12"
         NumberOfIterations="1"
         TotalOrbits="12"
         PureParallel="false"
         CoordinatedParallel="true"
         TargetOfOpportunity="false"
         CVZ="false"
         Duplication="false">
         
         <Configurations>
            
            <Configuration>
               
               <Config>WFPC2</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F555W</SpectralElement>
            </Configuration>
            
            <Configuration>
               
               <Config>WFPC2</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F814W</SpectralElement>
            </Configuration>
         </Configurations>
         
         <ObservationRequirements
            NoConstraints="false"
            Shadow="false"
            LowSky="false"
            SameOrient="true">
            
            <AfterObservation
               Observation="1">
               
               <From
                  Days="0.01" />
               
               <To
                  Days="0.02" />
            </AfterObservation>
         </ObservationRequirements>
         
         <SuitabilityResults
            DaysHigh="52"
            DaysHighMed="132"
            DaysLowMed="18"
            DaysLow="0"
            Visibility=""
            OrbitsPerDay="0.23"
            ObservationRequirements="SAMEORIENT; AFTER  1 BY 0.01D TO 0.02D" />
      </Observation>
      
      <Observation
         TargetName="M101-F2"
         Instrument="ACS"
         Number="14"
         NumberOfOrbits="1"
         NumberOfIterations="1"
         TotalOrbits="1"
         PureParallel="false"
         CoordinatedParallel="false"
         TargetOfOpportunity="false"
         CVZ="false"
         Duplication="false">
         
         <Configurations>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F555W</SpectralElement>
            </Configuration>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F814W</SpectralElement>
            </Configuration>
         </Configurations>
         
         <ObservationRequirements
            NoConstraints="false"
            Shadow="false"
            LowSky="false"
            SameOrient="true">
            
            <AfterObservation
               Observation="1">
               
               <From />
               
               <To />
            </AfterObservation>
         </ObservationRequirements>
         
         <SuitabilityResults
            DaysHigh="52"
            DaysHighMed="132"
            DaysLowMed="17"
            DaysLow="0"
            Visibility=""
            OrbitsPerDay="0.02"
            ObservationRequirements="SAMEORIENT; AFTER  1" />
      </Observation>
      
      <Observation
         TargetName="M101-F3"
         Instrument="ACS"
         Number="15"
         NumberOfOrbits="1"
         NumberOfIterations="1"
         TotalOrbits="1"
         PureParallel="false"
         CoordinatedParallel="false"
         TargetOfOpportunity="false"
         CVZ="false"
         Duplication="false">
         
         <Configurations>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F555W</SpectralElement>
            </Configuration>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F814W</SpectralElement>
            </Configuration>
         </Configurations>
         
         <ObservationRequirements
            NoConstraints="true" />
         
         <SuitabilityResults
            DaysHigh="52"
            DaysHighMed="132"
            DaysLowMed="18"
            DaysLow="0"
            Visibility=""
            OrbitsPerDay="0.02"
            ObservationRequirements="NOCONSTRAINTS" />
      </Observation>
      
      <Observation
         TargetName="M101-F2"
         Instrument="ACS"
         Number="16"
         NumberOfOrbits="1"
         NumberOfIterations="1"
         TotalOrbits="1"
         PureParallel="false"
         CoordinatedParallel="false"
         TargetOfOpportunity="false"
         CVZ="false"
         Duplication="false">
         
         <Configurations>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F555W</SpectralElement>
            </Configuration>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F814W</SpectralElement>
            </Configuration>
         </Configurations>
         
         <ObservationRequirements
            NoConstraints="false"
            Shadow="false"
            LowSky="false"
            SameOrient="true">
            
            <AfterObservation
               Observation="14">
               
               <From
                  Days="0.9" />
               
               <To
                  Days="1.1" />
            </AfterObservation>
         </ObservationRequirements>
         
         <SuitabilityResults
            DaysHigh="53"
            DaysHighMed="132"
            DaysLowMed="18"
            DaysLow="0"
            Visibility=""
            OrbitsPerDay="0.02"
            ObservationRequirements="SAMEORIENT; AFTER  14 BY 0.9D TO 1.1D" />
      </Observation>
      
      <Observation
         TargetName="M101-F2"
         Instrument="ACS"
         Number="17"
         NumberOfOrbits="1"
         NumberOfIterations="1"
         TotalOrbits="1"
         PureParallel="false"
         CoordinatedParallel="false"
         TargetOfOpportunity="false"
         CVZ="false"
         Duplication="false">
         
         <Configurations>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F555W</SpectralElement>
            </Configuration>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F814W</SpectralElement>
            </Configuration>
         </Configurations>
         
         <ObservationRequirements
            NoConstraints="false"
            Shadow="false"
            LowSky="false"
            SameOrient="true">
            
            <AfterObservation
               Observation="14">
               
               <From
                  Days="2.0" />
               
               <To
                  Days="2.4" />
            </AfterObservation>
         </ObservationRequirements>
         
         <SuitabilityResults
            DaysHigh="54"
            DaysHighMed="131"
            DaysLowMed="19"
            DaysLow="0"
            Visibility=""
            OrbitsPerDay="0.02"
            ObservationRequirements="SAMEORIENT; AFTER  14 BY 2D TO 2.4D" />
      </Observation>
      
      <Observation
         TargetName="M101-F2"
         Instrument="ACS"
         Number="18"
         NumberOfOrbits="1"
         NumberOfIterations="1"
         TotalOrbits="1"
         PureParallel="false"
         CoordinatedParallel="false"
         TargetOfOpportunity="false"
         CVZ="false"
         Duplication="false">
         
         <Configurations>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F555W</SpectralElement>
            </Configuration>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F814W</SpectralElement>
            </Configuration>
         </Configurations>
         
         <ObservationRequirements
            NoConstraints="false"
            Shadow="false"
            LowSky="false"
            SameOrient="true">
            
            <AfterObservation
               Observation="14">
               
               <From
                  Days="3.2" />
               
               <To
                  Days="4.0" />
            </AfterObservation>
         </ObservationRequirements>
         
         <SuitabilityResults
            DaysHigh="57"
            DaysHighMed="131"
            DaysLowMed="20"
            DaysLow="0"
            Visibility=""
            OrbitsPerDay="0.02"
            ObservationRequirements="SAMEORIENT; AFTER  14 BY 3.2D TO 4D" />
      </Observation>
      
      <Observation
         TargetName="M101-F2"
         Instrument="ACS"
         Number="19"
         NumberOfOrbits="1"
         NumberOfIterations="1"
         TotalOrbits="1"
         PureParallel="false"
         CoordinatedParallel="false"
         TargetOfOpportunity="false"
         CVZ="false"
         Duplication="false">
         
         <Configurations>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F555W</SpectralElement>
            </Configuration>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F814W</SpectralElement>
            </Configuration>
         </Configurations>
         
         <ObservationRequirements
            NoConstraints="false"
            Shadow="false"
            LowSky="false"
            SameOrient="true">
            
            <AfterObservation
               Observation="14">
               
               <From
                  Days="4.8" />
               
               <To
                  Days="5.8" />
            </AfterObservation>
         </ObservationRequirements>
         
         <SuitabilityResults
            DaysHigh="58"
            DaysHighMed="131"
            DaysLowMed="20"
            DaysLow="0"
            Visibility=""
            OrbitsPerDay="0.02"
            ObservationRequirements="SAMEORIENT; AFTER  14 BY 4.8D TO 5.8D" />
      </Observation>
      
      <Observation
         TargetName="M101-F2"
         Instrument="ACS"
         Number="20"
         NumberOfOrbits="1"
         NumberOfIterations="1"
         TotalOrbits="1"
         PureParallel="false"
         CoordinatedParallel="false"
         TargetOfOpportunity="false"
         CVZ="false"
         Duplication="false">
         
         <Configurations>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F814W</SpectralElement>
            </Configuration>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F555W</SpectralElement>
            </Configuration>
         </Configurations>
         
         <ObservationRequirements
            NoConstraints="false"
            Shadow="false"
            LowSky="false"
            SameOrient="true">
            
            <AfterObservation
               Observation="14">
               
               <From
                  Days="6.8" />
               
               <To
                  Days="8.2" />
            </AfterObservation>
         </ObservationRequirements>
         
         <SuitabilityResults
            DaysHigh="59"
            DaysHighMed="131"
            DaysLowMed="22"
            DaysLow="0"
            Visibility=""
            OrbitsPerDay="0.02"
            ObservationRequirements="SAMEORIENT; AFTER  14 BY 6.8D TO 8.2D" />
      </Observation>
      
      <Observation
         TargetName="M101-F2"
         Instrument="ACS"
         Number="21"
         NumberOfOrbits="1"
         NumberOfIterations="1"
         TotalOrbits="1"
         PureParallel="false"
         CoordinatedParallel="false"
         TargetOfOpportunity="false"
         CVZ="false"
         Duplication="false">
         
         <Configurations>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F555W</SpectralElement>
            </Configuration>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F814W</SpectralElement>
            </Configuration>
         </Configurations>
         
         <ObservationRequirements
            NoConstraints="false"
            Shadow="false"
            LowSky="false"
            SameOrient="true">
            
            <AfterObservation
               Observation="14">
               
               <From
                  Days="9.2" />
               
               <To
                  Days="11.2" />
            </AfterObservation>
         </ObservationRequirements>
         
         <SuitabilityResults
            DaysHigh="63"
            DaysHighMed="129"
            DaysLowMed="23"
            DaysLow="0"
            Visibility=""
            OrbitsPerDay="0.02"
            ObservationRequirements="SAMEORIENT; AFTER  14 BY 9.2D TO 11.2D" />
      </Observation>
      
      <Observation
         TargetName="M101-F2"
         Instrument="ACS"
         Number="22"
         NumberOfOrbits="1"
         NumberOfIterations="1"
         TotalOrbits="1"
         PureParallel="false"
         CoordinatedParallel="false"
         TargetOfOpportunity="false"
         CVZ="false"
         Duplication="false">
         
         <Configurations>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F555W</SpectralElement>
            </Configuration>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F814W</SpectralElement>
            </Configuration>
         </Configurations>
         
         <ObservationRequirements
            NoConstraints="false"
            Shadow="false"
            LowSky="false"
            SameOrient="true">
            
            <AfterObservation
               Observation="14">
               
               <From
                  Days="12.2" />
               
               <To
                  Days="14.8" />
            </AfterObservation>
         </ObservationRequirements>
         
         <SuitabilityResults
            DaysHigh="62"
            DaysHighMed="131"
            DaysLowMed="25"
            DaysLow="0"
            Visibility=""
            OrbitsPerDay="0.02"
            ObservationRequirements="SAMEORIENT; AFTER  14 BY 12.2D TO 14.8D" />
      </Observation>
      
      <Observation
         TargetName="M101-F2"
         Instrument="ACS"
         Number="23"
         NumberOfOrbits="1"
         NumberOfIterations="1"
         TotalOrbits="1"
         PureParallel="false"
         CoordinatedParallel="false"
         TargetOfOpportunity="false"
         CVZ="false"
         Duplication="false">
         
         <Configurations>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F555W</SpectralElement>
            </Configuration>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F814W</SpectralElement>
            </Configuration>
         </Configurations>
         
         <ObservationRequirements
            NoConstraints="false"
            Shadow="false"
            LowSky="false"
            SameOrient="true">
            
            <AfterObservation
               Observation="14">
               
               <From
                  Days="16.0" />
               
               <To
                  Days="19.6" />
            </AfterObservation>
         </ObservationRequirements>
         
         <SuitabilityResults
            DaysHigh="62"
            DaysHighMed="135"
            DaysLowMed="23"
            DaysLow="0"
            Visibility=""
            OrbitsPerDay="0.02"
            ObservationRequirements="SAMEORIENT; AFTER  14 BY 16D TO 19.6D" />
      </Observation>
      
      <Observation
         TargetName="M101-F2"
         Instrument="ACS"
         Number="24"
         NumberOfOrbits="1"
         NumberOfIterations="1"
         TotalOrbits="1"
         PureParallel="false"
         CoordinatedParallel="false"
         TargetOfOpportunity="false"
         CVZ="false"
         Duplication="false">
         
         <Configurations>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F555W</SpectralElement>
            </Configuration>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F814W</SpectralElement>
            </Configuration>
         </Configurations>
         
         <ObservationRequirements
            NoConstraints="false"
            Shadow="false"
            LowSky="false"
            SameOrient="true">
            
            <AfterObservation
               Observation="14">
               
               <From
                  Days="21.1" />
               
               <To
                  Days="25.6" />
            </AfterObservation>
         </ObservationRequirements>
         
         <SuitabilityResults
            DaysHigh="64"
            DaysHighMed="135"
            DaysLowMed="15"
            DaysLow="0"
            Visibility=""
            OrbitsPerDay="0.02"
            ObservationRequirements="SAMEORIENT; AFTER  14 BY 21.1D TO 25.6D" />
      </Observation>
      
      <Observation
         TargetName="M101-F2"
         Instrument="ACS"
         Number="25"
         NumberOfOrbits="1"
         NumberOfIterations="1"
         TotalOrbits="1"
         PureParallel="false"
         CoordinatedParallel="false"
         TargetOfOpportunity="false"
         CVZ="false"
         Duplication="false">
         
         <Configurations>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F555W</SpectralElement>
            </Configuration>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F814W</SpectralElement>
            </Configuration>
         </Configurations>
         
         <ObservationRequirements
            NoConstraints="false"
            Shadow="false"
            LowSky="false"
            SameOrient="true">
            
            <AfterObservation
               Observation="14">
               
               <From
                  Days="27.5" />
               
               <To
                  Days="33.5" />
            </AfterObservation>
         </ObservationRequirements>
         
         <SuitabilityResults
            DaysHigh="63"
            DaysHighMed="135"
            DaysLowMed="15"
            DaysLow="0"
            Visibility=""
            OrbitsPerDay="0.02"
            ObservationRequirements="SAMEORIENT; AFTER  14 BY 27.5D TO 33.5D" />
      </Observation>
      
      <Observation
         TargetName="M101-F2"
         Instrument="ACS"
         Number="26"
         NumberOfOrbits="1"
         NumberOfIterations="1"
         TotalOrbits="1"
         PureParallel="false"
         CoordinatedParallel="false"
         TargetOfOpportunity="false"
         CVZ="false"
         Duplication="false">
         
         <Configurations>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F555W</SpectralElement>
            </Configuration>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F814W</SpectralElement>
            </Configuration>
         </Configurations>
         
         <ObservationRequirements
            NoConstraints="false"
            Shadow="false"
            LowSky="false"
            SameOrient="true">
            
            <AfterObservation
               Observation="14">
               
               <From
                  Days="36.0" />
               
               <To
                  Days="44.0" />
            </AfterObservation>
         </ObservationRequirements>
         
         <SuitabilityResults
            DaysHigh="61"
            DaysHighMed="127"
            DaysLowMed="29"
            DaysLow="0"
            Visibility=""
            OrbitsPerDay="0.02"
            ObservationRequirements="SAMEORIENT; AFTER  14 BY 36D TO 44D" />
      </Observation>
      
      <Observation
         TargetName="M101-F3"
         Instrument="ACS"
         Number="27"
         NumberOfOrbits="1"
         NumberOfIterations="1"
         TotalOrbits="1"
         PureParallel="false"
         CoordinatedParallel="false"
         TargetOfOpportunity="false"
         CVZ="false"
         Duplication="false">
         
         <Configurations>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F555W</SpectralElement>
            </Configuration>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F814W</SpectralElement>
            </Configuration>
         </Configurations>
         
         <ObservationRequirements
            NoConstraints="false"
            Shadow="false"
            LowSky="false"
            SameOrient="true">
            
            <AfterObservation
               Observation="15">
               
               <From
                  Days="0.9" />
               
               <To
                  Days="1.1" />
            </AfterObservation>
         </ObservationRequirements>
         
         <SuitabilityResults
            DaysHigh="53"
            DaysHighMed="132"
            DaysLowMed="18"
            DaysLow="0"
            Visibility=""
            OrbitsPerDay="0.02"
            ObservationRequirements="SAMEORIENT; AFTER  15 BY 0.9D TO 1.1D" />
      </Observation>
      
      <Observation
         TargetName="M101-F3"
         Instrument="ACS"
         Number="28"
         NumberOfOrbits="1"
         NumberOfIterations="1"
         TotalOrbits="1"
         PureParallel="false"
         CoordinatedParallel="false"
         TargetOfOpportunity="false"
         CVZ="false"
         Duplication="false">
         
         <Configurations>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F555W</SpectralElement>
            </Configuration>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F814W</SpectralElement>
            </Configuration>
         </Configurations>
         
         <ObservationRequirements
            NoConstraints="false"
            Shadow="false"
            LowSky="false"
            SameOrient="true">
            
            <AfterObservation
               Observation="15">
               
               <From
                  Days="2.0" />
               
               <To
                  Days="2.4" />
            </AfterObservation>
         </ObservationRequirements>
         
         <SuitabilityResults
            DaysHigh="54"
            DaysHighMed="131"
            DaysLowMed="19"
            DaysLow="0"
            Visibility=""
            OrbitsPerDay="0.02"
            ObservationRequirements="SAMEORIENT; AFTER  15 BY 2D TO 2.4D" />
      </Observation>
      
      <Observation
         TargetName="M101-F3"
         Instrument="ACS"
         Number="29"
         NumberOfOrbits="1"
         NumberOfIterations="1"
         TotalOrbits="1"
         PureParallel="false"
         CoordinatedParallel="false"
         TargetOfOpportunity="false"
         CVZ="false"
         Duplication="false">
         
         <Configurations>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F555W</SpectralElement>
            </Configuration>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F814W</SpectralElement>
            </Configuration>
         </Configurations>
         
         <ObservationRequirements
            NoConstraints="false"
            Shadow="false"
            LowSky="false"
            SameOrient="true">
            
            <AfterObservation
               Observation="15">
               
               <From
                  Days="3.2" />
               
               <To
                  Days="4.0" />
            </AfterObservation>
         </ObservationRequirements>
         
         <SuitabilityResults
            DaysHigh="57"
            DaysHighMed="131"
            DaysLowMed="20"
            DaysLow="0"
            Visibility=""
            OrbitsPerDay="0.02"
            ObservationRequirements="SAMEORIENT; AFTER  15 BY 3.2D TO 4D" />
      </Observation>
      
      <Observation
         TargetName="M101-F3"
         Instrument="ACS"
         Number="30"
         NumberOfOrbits="1"
         NumberOfIterations="1"
         TotalOrbits="1"
         PureParallel="false"
         CoordinatedParallel="false"
         TargetOfOpportunity="false"
         CVZ="false"
         Duplication="false">
         
         <Configurations>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F555W</SpectralElement>
            </Configuration>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F814W</SpectralElement>
            </Configuration>
         </Configurations>
         
         <ObservationRequirements
            NoConstraints="false"
            Shadow="false"
            LowSky="false"
            SameOrient="true">
            
            <AfterObservation
               Observation="15">
               
               <From
                  Days="4.8" />
               
               <To
                  Days="5.8" />
            </AfterObservation>
         </ObservationRequirements>
         
         <SuitabilityResults
            DaysHigh="58"
            DaysHighMed="130"
            DaysLowMed="21"
            DaysLow="0"
            Visibility=""
            OrbitsPerDay="0.02"
            ObservationRequirements="SAMEORIENT; AFTER  15 BY 4.8D TO 5.8D" />
      </Observation>
      
      <Observation
         TargetName="M101-F3"
         Instrument="ACS"
         Number="31"
         NumberOfOrbits="1"
         NumberOfIterations="1"
         TotalOrbits="1"
         PureParallel="false"
         CoordinatedParallel="false"
         TargetOfOpportunity="false"
         CVZ="false"
         Duplication="false">
         
         <Configurations>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F555W</SpectralElement>
            </Configuration>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F814W</SpectralElement>
            </Configuration>
         </Configurations>
         
         <ObservationRequirements
            NoConstraints="false"
            Shadow="false"
            LowSky="false"
            SameOrient="true">
            
            <AfterObservation
               Observation="15">
               
               <From
                  Days="6.8" />
               
               <To
                  Days="8.2" />
            </AfterObservation>
         </ObservationRequirements>
         
         <SuitabilityResults
            DaysHigh="59"
            DaysHighMed="131"
            DaysLowMed="22"
            DaysLow="0"
            Visibility=""
            OrbitsPerDay="0.02"
            ObservationRequirements="SAMEORIENT; AFTER  15 BY 6.8D TO 8.2D" />
      </Observation>
      
      <Observation
         TargetName="M101-F3"
         Instrument="ACS"
         Number="32"
         NumberOfOrbits="1"
         NumberOfIterations="1"
         TotalOrbits="1"
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         CoordinatedParallel="false"
         TargetOfOpportunity="false"
         CVZ="false"
         Duplication="false">
         
         <Configurations>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F555W</SpectralElement>
            </Configuration>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F814W</SpectralElement>
            </Configuration>
         </Configurations>
         
         <ObservationRequirements
            NoConstraints="false"
            Shadow="false"
            LowSky="false"
            SameOrient="true">
            
            <AfterObservation
               Observation="15">
               
               <From
                  Days="9.2" />
               
               <To
                  Days="11.2" />
            </AfterObservation>
         </ObservationRequirements>
         
         <SuitabilityResults
            DaysHigh="63"
            DaysHighMed="129"
            DaysLowMed="24"
            DaysLow="0"
            Visibility=""
            OrbitsPerDay="0.02"
            ObservationRequirements="SAMEORIENT; AFTER  15 BY 9.2D TO 11.2D" />
      </Observation>
      
      <Observation
         TargetName="M101-F3"
         Instrument="ACS"
         Number="33"
         NumberOfOrbits="1"
         NumberOfIterations="1"
         TotalOrbits="1"
         PureParallel="false"
         CoordinatedParallel="false"
         TargetOfOpportunity="false"
         CVZ="false"
         Duplication="false">
         
         <Configurations>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F555W</SpectralElement>
            </Configuration>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F814W</SpectralElement>
            </Configuration>
         </Configurations>
         
         <ObservationRequirements
            NoConstraints="false"
            Shadow="false"
            LowSky="false"
            SameOrient="true">
            
            <AfterObservation
               Observation="15">
               
               <From
                  Days="12.1" />
               
               <To
                  Days="14.9" />
            </AfterObservation>
         </ObservationRequirements>
         
         <SuitabilityResults
            DaysHigh="63"
            DaysHighMed="131"
            DaysLowMed="25"
            DaysLow="0"
            Visibility=""
            OrbitsPerDay="0.02"
            ObservationRequirements="SAMEORIENT; AFTER  15 BY 12.1D TO 14.9D" />
      </Observation>
      
      <Observation
         TargetName="M101-F3"
         Instrument="ACS"
         Number="34"
         NumberOfOrbits="1"
         NumberOfIterations="1"
         TotalOrbits="1"
         PureParallel="false"
         CoordinatedParallel="false"
         TargetOfOpportunity="false"
         CVZ="false"
         Duplication="false">
         
         <Configurations>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F555W</SpectralElement>
            </Configuration>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F814W</SpectralElement>
            </Configuration>
         </Configurations>
         
         <ObservationRequirements
            NoConstraints="false"
            Shadow="false"
            LowSky="false"
            SameOrient="true">
            
            <AfterObservation
               Observation="15">
               
               <From
                  Days="16.0" />
               
               <To
                  Days="19.5" />
            </AfterObservation>
         </ObservationRequirements>
         
         <SuitabilityResults
            DaysHigh="61"
            DaysHighMed="135"
            DaysLowMed="23"
            DaysLow="0"
            Visibility=""
            OrbitsPerDay="0.02"
            ObservationRequirements="SAMEORIENT; AFTER  15 BY 16D TO 19.5D" />
      </Observation>
      
      <Observation
         TargetName="M101-F3"
         Instrument="ACS"
         Number="35"
         NumberOfOrbits="1"
         NumberOfIterations="1"
         TotalOrbits="1"
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         CoordinatedParallel="false"
         TargetOfOpportunity="false"
         CVZ="false"
         Duplication="false">
         
         <Configurations>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F555W</SpectralElement>
            </Configuration>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F814W</SpectralElement>
            </Configuration>
         </Configurations>
         
         <ObservationRequirements
            NoConstraints="false"
            Shadow="false"
            LowSky="false"
            SameOrient="true">
            
            <AfterObservation
               Observation="15">
               
               <From
                  Days="21.0" />
               
               <To
                  Days="25.6" />
            </AfterObservation>
         </ObservationRequirements>
         
         <SuitabilityResults
            DaysHigh="65"
            DaysHighMed="135"
            DaysLowMed="15"
            DaysLow="0"
            Visibility=""
            OrbitsPerDay="0.02"
            ObservationRequirements="SAMEORIENT; AFTER  15 BY 21D TO 25.6D" />
      </Observation>
      
      <Observation
         TargetName="M101-F3"
         Instrument="ACS"
         Number="36"
         NumberOfOrbits="1"
         NumberOfIterations="1"
         TotalOrbits="1"
         PureParallel="false"
         CoordinatedParallel="false"
         TargetOfOpportunity="false"
         CVZ="false"
         Duplication="false">
         
         <Configurations>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F555W</SpectralElement>
            </Configuration>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F814W</SpectralElement>
            </Configuration>
         </Configurations>
         
         <ObservationRequirements
            NoConstraints="false"
            Shadow="false"
            LowSky="false"
            SameOrient="true">
            
            <AfterObservation
               Observation="15">
               
               <From
                  Days="27.5" />
               
               <To
                  Days="33.5" />
            </AfterObservation>
         </ObservationRequirements>
         
         <SuitabilityResults
            DaysHigh="63"
            DaysHighMed="135"
            DaysLowMed="15"
            DaysLow="0"
            Visibility=""
            OrbitsPerDay="0.02"
            ObservationRequirements="SAMEORIENT; AFTER  15 BY 27.5D TO 33.5D" />
      </Observation>
      
      <Observation
         TargetName="M101-F3"
         Instrument="ACS"
         Number="37"
         NumberOfOrbits="1"
         NumberOfIterations="1"
         TotalOrbits="1"
         PureParallel="false"
         CoordinatedParallel="false"
         TargetOfOpportunity="false"
         CVZ="false"
         Duplication="false">
         
         <Configurations>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F555W</SpectralElement>
            </Configuration>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F814W</SpectralElement>
            </Configuration>
         </Configurations>
         
         <ObservationRequirements
            NoConstraints="false"
            Shadow="false"
            LowSky="false"
            SameOrient="true">
            
            <AfterObservation
               Observation="15">
               
               <From
                  Days="36.0" />
               
               <To
                  Days="44.0" />
            </AfterObservation>
         </ObservationRequirements>
         
         <SuitabilityResults
            DaysHigh="61"
            DaysHighMed="127"
            DaysLowMed="29"
            DaysLow="0"
            Visibility=""
            OrbitsPerDay="0.02"
            ObservationRequirements="SAMEORIENT; AFTER  15 BY 36D TO 44D" />
      </Observation>
      
      <Observation
         TargetName="M101-F3"
         Instrument="WFPC2"
         Number="38"
         NumberOfOrbits="12"
         NumberOfIterations="1"
         TotalOrbits="12"
         PureParallel="false"
         CoordinatedParallel="true"
         TargetOfOpportunity="false"
         CVZ="false"
         Duplication="false">
         
         <Configurations>
            
            <Configuration>
               
               <Config>WFPC2</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F555W</SpectralElement>
            </Configuration>
            
            <Configuration>
               
               <Config>WFPC2</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F814W</SpectralElement>
            </Configuration>
         </Configurations>
         
         <ObservationRequirements
            NoConstraints="false"
            Shadow="false"
            LowSky="false"
            SameOrient="true" />
         
         <SuitabilityResults
            DaysHigh="221"
            DaysHighMed="114"
            DaysLowMed="48"
            DaysLow="0"
            Visibility=""
            OrbitsPerDay="0.05"
            ObservationRequirements="SAMEORIENT;" />
      </Observation>
      
      <Observation
         TargetName="M101-F2"
         Instrument="WFPC2"
         Number="39"
         NumberOfOrbits="12"
         NumberOfIterations="1"
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         CoordinatedParallel="true"
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         CVZ="false"
         Duplication="false">
         
         <Configurations>
            
            <Configuration>
               
               <Config>WFPC2</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F555W</SpectralElement>
            </Configuration>
            
            <Configuration>
               
               <Config>WFPC2</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F814W</SpectralElement>
            </Configuration>
         </Configurations>
         
         <ObservationRequirements
            NoConstraints="false"
            Shadow="false"
            LowSky="false"
            SameOrient="true" />
         
         <SuitabilityResults
            DaysHigh="221"
            DaysHighMed="114"
            DaysLowMed="48"
            DaysLow="0"
            Visibility=""
            OrbitsPerDay="0.05"
            ObservationRequirements="SAMEORIENT;" />
      </Observation>
   </Observations>
   
   <Datasets />
   
   <Patterns />
   
   <Visits>
      
      <Visit
         Number="01"
         Status="completed">
         
         <ToolData>
            
            <ToolDataItem
               Key="OpTimeStamp">
               
               <OpToolDataDate>
                  
                  <Time>1152642390312</Time>
               </OpToolDataDate>
            </ToolDataItem>
         </ToolData>
         
         <Comments>First observation in a coordinated series of twelve (12) epochs</Comments>
         
         <TicData>
            
            <TicFileString>
(Tic-Visit
 :proposal-id 10918
 :visit-id "01"
 :proposal-version -1
 :trans-version "20060322"
 :date "11-Jul-2006 14:26:28.0"
 :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
                 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
 :number-of-orbits 1
 :saa-model "26"
 :si-bright-earth-limb-angle 20.0
 :data-volume 1405792
 :tdrss-contact-duration 0
 :coron NIL
 )

(Tic-Obset
 :proposal-id 10918
 :visit-id "01"
 :obset-id "01"
 :pcs-mode "FGS"
 )

(Tic-Orbit
 :proposal-id 10918
 :visit-id "01"
 :orbit-number 1
 :pcs-time 355
 :si-vis-utilization 2845
 :al-overhead-at-end 95
 :internal-dur-at-end 349
 :dark-offset NIL
 :dark-utilization 0
 :max-dark-utilization 1920
 :low-sky "N"
 :pcs-visibility 3200
 :pcs-gap 0
 )
</TicFileString>
            
            <TicDataCurrent>false</TicDataCurrent>
            
            <TicNumOrbits>1</TicNumOrbits>
            
            <TicNumOverruns>0</TicNumOverruns>
         </TicData>
         
         <ToolData>
            
            <ToolDataItem
               Key="OpTimeStamp">
               
               <OpToolDataDate>
                  
                  <Time>1152642390312</Time>
               </OpToolDataDate>
            </ToolDataItem>
         </ToolData>
         
         <GuidingTolerance>
            
            <Angle />
         </GuidingTolerance>
         
         <SeqWithin>
            
            <VisitList />
         </SeqWithin>
         
         <OnHoldComments />
         
         <ExposureGroup
            Type="Parallel">
            
            <Exposure
               Number="1"
               TargetName="M101-F1"
               Config="ACS/WFC"
               Opmode="ACCUM"
               Aperture="WFC"
               SpElement="F814W"
               NumberOfIterations="1"
               TimePerExposure="300.0"
               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="2"
               TargetName="M101-F1"
               Config="ACS/WFC"
               Opmode="ACCUM"
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               Y="0.249" />
            
            <MaxDur />
            
            <MinDur />
            
            <Comments />
            
            <InstrumentParameters
               CR-SPLIT="NO" />
            
            <SubExposures>
               
               <SubExposure
                  OrbitNumber="1" />
            </SubExposures>
         </Exposure>
         
         <Exposure
            Number="4"
            TargetName="M101-F3"
            Config="WFPC2"
            Opmode="IMAGE"
            Aperture="WFALL"
            SpElement="F555W"
            NumberOfIterations="1"
            TimePerExposure="500.0"
            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>
      </Visit>
   </Visits>
</HSTProposal>

