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<HSTProposal
   Phase1ID="10926"
   Phase2ID="10926"
   Phase="Phase II"
   AptVersion="Version 16.0.3 ">
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   <!--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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            AssignedID="10926">
            
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            <SubmissionComments>This submission contains a new visit, Visit 30, to observe the host of (and possible transent associated with) GRB 060927. 
Nial Tanvir has submitted a ToO request to observe this object.   In that request, he stated that we would use Visit 7.  However, 
rather than alter that template visit I have used a new visit, Visit 30.  This will also allow us to give potential further visits
to this source numerical assignments in the 30s.</SubmissionComments>
            
            <SubmissionLog>      ----- Submission 1 (Thu May 18 15:40:03 GMT 2006) -----

  Error connecting to STScI submission server:
java.rmi.ConnectException: Connection refused to host: clotho.stsci.edu; nested exception is: 
	java.net.ConnectException: Connection refused
----- Submission 2 (Thu Jun 01 20:31:14 GMT 2006) -----


----- Attempting Submission 3 (Sun Apr 15 06:06:31 GMT 2007) -----
</SubmissionLog>
            
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            AssignedID="548">
            
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            <SubmissionComments>ToO proposal for high redshift GRB followup</SubmissionComments>
            
            <SubmissionLog>            Assigned ID: 548
----- Submission 1 (Fri Jan 27 23:28:15 GMT 2006) -----





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   <ProposalInformation
      Category="GO"
      PureParallelProposal="false"
      Cycle="15"
      STScIEditNumber="0">
      
      <Title>GRB afterglows and host galaxies at very high redshifts</Title>
      
      <Abstract>Cosmology is beginning to constrain the nature of the earliest stars and galaxies to form in the universe, but direct observation of galaxies at z&gt;6 remains highly challenging due to their scarcity, intrinsically small size, and high luminosity distance.  GRB afterglows, thanks to their extreme luminosities, offer the possibility of circumventing these normal constraints by providing redshifts and spectral information which couldn't be obtained by direct observation of the host galaxies themselves.  In addition, the association of GRBs with massive stars means that they are a tracer of star formation, and that their hosts are likely responsible for a large proportion of the ionizing radiation during that era.  Our collaboration is conducting a campaign to rapidly identify and study candidate very high redshift bursts, bringing to bear a network of 2, 4 and 8m telescopes with near-IR instrumentation.  Swift has proven capable of detecting faint, distant GRBs, and reporting accurate positions for many bursts in near real-time.  Here we propose to continue our HST program of targeting z&gt;6 GRBs.  HST is crucial to this endeavour, allowing us (a) to characterise the basic properties, such as luminosity and colour, and in some cases morphologies, of the hosts, which is essential to understanding these primordial galaxies and their relationship to other galaxy populations; and (b) to monitor the late time afterglows and hence compare them to lower-z bursts and test the use of GRBs as standard candles</Abstract>
      
      <PrincipalInvestigator
         Honorific="Dr."
         FirstName="Nial"
         MiddleInitial="R."
         LastName="Tanvir"
         ESAMember="true"
         UniqueID="2538"
         AdminCoI="CoI: Dr. Andrew S. Fruchter "
         AddressVerifiedCycle="15">
         
         <Address
            Institution="University of Hertfordshire"
            Country="UK" />
      </PrincipalInvestigator>
      
      <CoInvestigator
         Honorific="Dr."
         FirstName="Andrew"
         MiddleInitial="J."
         LastName="Levan"
         ESAMember="true"
         UniqueID="6925"
         AdminUSPI="false"
         Contact="false"
         AddressVerifiedCycle="15">
         
         <Address
            Institution="University of Hertfordshire"
            Country="UK" />
      </CoInvestigator>
      
      <CoInvestigator
         Honorific="Dr."
         FirstName="Robert"
         MiddleInitial="S."
         LastName="Priddey"
         ESAMember="true"
         UniqueID="6859"
         AdminUSPI="false"
         Contact="false"
         AddressVerifiedCycle="15">
         
         <Address
            Institution="University of Hertfordshire"
            Country="UK" />
      </CoInvestigator>
      
      <CoInvestigator
         Honorific="Dr."
         FirstName="Andrew"
         MiddleInitial="S."
         LastName="Fruchter"
         ESAMember="false"
         UniqueID="719"
         AdminUSPI="true"
         Contact="false"
         AddressVerifiedCycle="15">
         
         <Address
            Institution="Space Telescope Science Institute"
            USState="MD"
            Country="USA" />
      </CoInvestigator>
      
      <CoInvestigator
         Honorific="Dr."
         FirstName="James"
         LastName="Rhoads"
         ESAMember="false"
         UniqueID="4709"
         AdminUSPI="false"
         Contact="false"
         AddressVerifiedCycle="15">
         
         <Address
            Institution="Arizona State University"
            USState="AZ"
            Country="USA" />
      </CoInvestigator>
      
      <CoInvestigator
         Honorific="Dr."
         FirstName="David"
         MiddleInitial="D."
         LastName="Bersier"
         ESAMember="true"
         UniqueID="5939"
         AdminUSPI="false"
         Contact="false"
         AddressVerifiedCycle="15">
         
         <Address
            Institution="Liverpool John Moores University"
            Country="UK" />
      </CoInvestigator>
      
      <CoInvestigator
         Honorific="Dr."
         FirstName="Jens"
         LastName="Hjorth"
         ESAMember="true"
         UniqueID="4682"
         AdminUSPI="false"
         Contact="false"
         AddressVerifiedCycle="15">
         
         <Address
            Institution="University of Copenhagen, Niels Bohr Institute"
            Country="Denmark" />
      </CoInvestigator>
      
      <CoInvestigator
         Honorific="Dr."
         FirstName="Johan"
         MiddleInitial="P. U."
         LastName="Fynbo"
         ESAMember="true"
         UniqueID="4669"
         AdminUSPI="false"
         Contact="false"
         AddressVerifiedCycle="15">
         
         <Address
            Institution="University of Copenhagen, Niels Bohr Institute"
            Country="Denmark" />
      </CoInvestigator>
      
      <CoInvestigator
         Honorific="Dr."
         FirstName="Jochen"
         LastName="Greiner"
         ESAMember="true"
         UniqueID="6185"
         AdminUSPI="false"
         Contact="false"
         AddressVerifiedCycle="15">
         
         <Address
            Institution="Max-Planck-Institut fur extraterrestrische Physik"
            Country="Germany" />
      </CoInvestigator>
      
      <CoInvestigator
         Honorific="Dr."
         FirstName="Alberto"
         MiddleInitial="J."
         LastName="Castro-Tirado"
         ESAMember="true"
         UniqueID="5856"
         AdminUSPI="false"
         Contact="false"
         AddressVerifiedCycle="15">
         
         <Address
            Institution="Instituto de Astrofisica de Andalucia (IAA)"
            Country="Spain" />
      </CoInvestigator>
      
      <CoInvestigator
         Honorific="Dr."
         FirstName="Ralph"
         MiddleInitial="A.M.J."
         LastName="Wijers"
         ESAMember="true"
         UniqueID="5495"
         AdminUSPI="false"
         Contact="false"
         AddressVerifiedCycle="15">
         
         <Address
            Institution="Universiteit van Amsterdam"
            Country="Netherlands" />
      </CoInvestigator>
      
      <CoInvestigator
         Honorific="Dr."
         FirstName="Daniel"
         MiddleInitial="E."
         LastName="Reichart"
         ESAMember="false"
         UniqueID="5643"
         AdminUSPI="false"
         Contact="false"
         AddressVerifiedCycle="15">
         
         <Address
            Institution="University of North Carolina at Chapel Hill"
            USState="NC"
            Country="USA" />
      </CoInvestigator>
      
      <CoInvestigator
         Honorific="Dr."
         FirstName="Javier"
         LastName="Gorosabel"
         ESAMember="true"
         UniqueID="7139"
         AdminUSPI="false"
         Contact="false"
         AddressVerifiedCycle="15">
         
         <Address
            Institution="Instituto de Astrofisica de Andalucia (IAA)"
            Country="Spain" />
      </CoInvestigator>
      
      <CoInvestigator
         Honorific="Dr."
         FirstName="Pall"
         LastName="Jakobsson"
         ESAMember="true"
         AdminUSPI="false"
         Contact="false"
         AddressVerifiedCycle="15">
         
         <Address
            Institution="University of Copenhagen, Niels Bohr Institute"
            Country="Denmark" />
      </CoInvestigator>
      
      <CoInvestigator
         Honorific="Dr."
         FirstName="Priyamvada"
         LastName="Natarajan"
         ESAMember="false"
         UniqueID="5472"
         AdminUSPI="false"
         Contact="false"
         AddressVerifiedCycle="15">
         
         <Address
            Institution="Yale University"
            USState="CT"
            Country="USA" />
      </CoInvestigator>
      
      <CoInvestigator
         Honorific="Dr."
         FirstName="Evert"
         LastName="Rol"
         ESAMember="true"
         AdminUSPI="false"
         Contact="false"
         AddressVerifiedCycle="15">
         
         <Address
            Institution="University of Leicester"
            Country="UK" />
      </CoInvestigator>
      
      <CoInvestigator
         Honorific="Dr."
         FirstName="Melissa"
         MiddleInitial="C."
         LastName="Nysewander"
         ESAMember="false"
         AdminUSPI="false"
         Contact="false"
         AddressVerifiedCycle="15">
         
         <Address
            Institution="University of North Carolina at Chapel Hill"
            USState="NC"
            Country="USA" />
      </CoInvestigator>
      
      <CoInvestigator
         Honorific="Dr."
         FirstName="Aaron"
         MiddleInitial="P."
         LastName="Lacluyze"
         ESAMember="false"
         AdminUSPI="false"
         Contact="false"
         AddressVerifiedCycle="15">
         
         <Address
            Institution="University of North Carolina at Chapel Hill"
            USState="NC"
            Country="USA" />
      </CoInvestigator>
      
      <CoInvestigator
         Honorific="Dr."
         FirstName="C."
         LastName="Kouveliotou"
         ESAMember="false"
         UniqueID="4805"
         AdminUSPI="false"
         Contact="false"
         AddressVerifiedCycle="15">
         
         <Address
            Institution="NASA Marshall Space Flight Center"
            USState="AL"
            Country="USA" />
      </CoInvestigator>
      
      <Questions>
         
         <Phase2Questions>
            
            <ObservingDescription>We will concentrate efforts on the NICMOS/f160w band which, while still rest-frame UV, is as red
as one can go with HST with reasonable sensitivity, and therefore mitigates as much as possible
against dust extinction.
A range of plausible light curves (afterglow and host) is illustrated in Fig. 3. Where possible
(pointing constraints permitting) we will  rst make two visits 1 orbit at roughly 2 weeks and
3 weeks post burst, to monitor the post-break light curve for suf ciently bright afterglows (on
suf ciently faint hosts) and to provide precise localisation of the GRB within its host.
As also shown in Fig. 3, the host, if detectable at all, should dominate the likely afterglow
contribution after about 3 months. At this time we will revisit to obtain a deep host observation.
With 4 orbits we will reach a 5B detection limit of about H(AB)=26.5. This is below the LC -level
for z=3 galaxies redshifted to z=10 and hence offers a fair chance of a successful detection. Note
that late time host observations are also necessary to interpret the earlier afterglow observations,
since contaminating host light must be removed. For up to 2 targets if found to be ?D
E  ?6.5
we will also obtain a 2 orbit ACS/WFC z-band (F850LP) exposure (reaching FHGJI 
 $:  for a
z(AB)=26.8 point source) to provide more detailed colour and morphological information for the
host and any other structures in its environment.
Given the big uncertainties in expected numbers, and afterglow and galaxy properties, as
discussed above, we request 4 triggers in cycle 14, with IR and in some cases optical followup,
typically 7 orbits per trigger. This will be adequate to acquire basic information on the population
of very high redshift GRB selected galaxies.</ObservingDescription>
            
            <RealtimeJustification />
            
            <CalibrationJustification />
            
            <AdditionalComments />
         </Phase2Questions>
      </Questions>
      
      <Orbits
         ThisCycle2GyroPrimary="21"
         ThisCycle2GyroParallel="0"
         NextCycle2GyroPrimary="0"
         NextCycle2GyroParallel="0"
         AfterNext2GyroPrimary="0"
         AfterNext2GyroParallel="0" />
      
      <Phase1ProposalInformation
         TotalTargets="1"
         Attachment="/Users/nrt/Desktop/HST/GRBhiz_c15.pdf">
         
         <ScientificCategory>COSMOLOGY</ScientificCategory>
         
         <ScientificKeyword1
            Keyword="EVOLUTION" />
         
         <ScientificKeyword2
            Keyword="GALAXY FORMATION AND EVOLUTION" />
         
         <ScientificKeyword3
            Keyword="GAMMA-RAY BURSTS" />
         
         <ScientificKeyword4
            Keyword="HIGH REDSHIFT GALAXIES" />
         
         <ScientificKeyword5
            Keyword="HOST GALAXIES" />
         
         <ProprietaryPeriod>12</ProprietaryPeriod>
         
         <CalibProp>false</CalibProp>
         
         <ChandraCoord>0</ChandraCoord>
         
         <SpitzerHours>0.0</SpitzerHours>
         
         <NOAONights>0</NOAONights>
         
         <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="GRB060927-HOST"
         Number="8"
         ReferenceFrame="ICRS">
         
         <PrimaryCategory>GALAXY</PrimaryCategory>
         
         <PrimaryDescription>
            
            <Description>UNDESIGNATED</Description>
            
            <Description>HIGH REDSHIFT GALAXY</Description>
         </PrimaryDescription>
         
         <Comments />
         
         <Fluxes>
            
            <BroadBandMagnitude
               Band="V"
               Magnitude="26" />
         </Fluxes>
         
         <AlternateNames />
         
         <EquatorialPosition>
            
            <RA
               Hrs="21"
               Mins="58"
               Secs="12.0000" />
            
            <RAUnc
               Arcsec="0.3" />
            
            <DEC
               Degrees="+05"
               Arcmin="21"
               Arcsec="50.00" />
            
            <DECUnc
               Arcsec="0.1" />
            
            <Equinox>J2000</Equinox>
         </EquatorialPosition>
         
         <ProvisionalRA>00 00 0.0000</ProvisionalRA>
         
         <ProvisionalDEC>+00 00 0.00</ProvisionalDEC>
         
         <Equinox>J2000</Equinox>
      </FixedTarget>
      
      <GenericTarget
         Name="GRB-HOST-1"
         Number="1">
         
         <PrimaryCategory>GALAXY</PrimaryCategory>
         
         <PrimaryDescription>
            
            <Description>AMORPHOUS IRREGULAR</Description>
         </PrimaryDescription>
         
         <Comments />
         
         <Fluxes>
            
            <BroadBandMagnitude
               Band="V"
               Magnitude="25" />
         </Fluxes>
         
         <Criteria
            FreeText="false">RA = 0H 0M 0S, DEC = 0d 0m 0s</Criteria>
      </GenericTarget>
      
      <GenericTarget
         Name="GRB-HOST-2"
         Number="2">
         
         <PrimaryCategory>GALAXY</PrimaryCategory>
         
         <PrimaryDescription>
            
            <Description>AMORPHOUS IRREGULAR</Description>
         </PrimaryDescription>
         
         <Comments />
         
         <Fluxes>
            
            <BroadBandMagnitude
               Band="V"
               Magnitude="25" />
         </Fluxes>
         
         <Criteria
            FreeText="false">RA = 0H 0M 0S, DEC = 0d 0m 0s</Criteria>
      </GenericTarget>
      
      <GenericTarget
         Name="GRB-HOST+OT-1"
         Number="5">
         
         <PrimaryCategory>EXT-STAR</PrimaryCategory>
         
         <PrimaryDescription>
            
            <Description>GAMMA RAY BURSTER</Description>
         </PrimaryDescription>
         
         <Comments />
         
         <Fluxes>
            
            <BroadBandMagnitude
               Band="V"
               Magnitude="24" />
         </Fluxes>
         
         <Criteria
            FreeText="false">RA = 0H 0M 0S, DEC = 0d 0m 0s</Criteria>
      </GenericTarget>
      
      <GenericTarget
         Name="GRB-HOST+OT-2"
         Number="6">
         
         <PrimaryCategory>EXT-STAR</PrimaryCategory>
         
         <PrimaryDescription>
            
            <Description>GAMMA RAY BURSTER</Description>
         </PrimaryDescription>
         
         <Comments />
         
         <Fluxes>
            
            <BroadBandMagnitude
               Band="V"
               Magnitude="24" />
         </Fluxes>
         
         <Criteria
            FreeText="false">RA = 0H 0M 0S, DEC = 0d 0m 0s</Criteria>
      </GenericTarget>
      
      <GenericTarget
         Name="GRB-HOST+OT-3"
         Number="7">
         
         <PrimaryCategory>EXT-STAR</PrimaryCategory>
         
         <PrimaryDescription>
            
            <Description>GAMMA RAY BURSTER</Description>
         </PrimaryDescription>
         
         <Comments />
         
         <Fluxes>
            
            <BroadBandMagnitude
               Band="V"
               Magnitude="24" />
         </Fluxes>
         
         <Criteria
            FreeText="false">RA = 0H 0M 0S, DEC = 0d 0m 0s</Criteria>
      </GenericTarget>
   </Targets>
   
   <Observations>
      
      <Observation
         TargetName="GRB-HOST+OT-1"
         Instrument="NICMOS"
         Number="1"
         NumberOfOrbits="1"
         NumberOfIterations="1"
         TotalOrbits="1"
         PureParallel="false"
         CoordinatedParallel="false"
         TargetOfOpportunity="true"
         CVZ="false"
         Duplication="false">
         
         <Configurations>
            
            <Configuration>
               
               <Config>NIC3</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F160W</SpectralElement>
            </Configuration>
         </Configurations>
         
         <ObservationRequirements
            NoConstraints="true" />
         
         <SuitabilityResults
            DaysHigh="0"
            DaysHighMed="0"
            DaysLowMed="0"
            DaysLow="0"
            Visibility=""
            OrbitsPerDay="0"
            ObservationRequirements="NOCONSTRAINTS" />
      </Observation>
      
      <Observation
         TargetName="GRB-HOST+OT-1"
         Instrument="ACS"
         Number="2"
         NumberOfOrbits="1"
         NumberOfIterations="1"
         TotalOrbits="1"
         PureParallel="false"
         CoordinatedParallel="false"
         TargetOfOpportunity="true"
         CVZ="false"
         Duplication="false">
         
         <Configurations>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F775W</SpectralElement>
            </Configuration>
         </Configurations>
         
         <ObservationRequirements
            NoConstraints="true" />
         
         <SuitabilityResults
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            DaysHighMed="0"
            DaysLowMed="0"
            DaysLow="0"
            Visibility=""
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            ObservationRequirements="NOCONSTRAINTS" />
      </Observation>
      
      <Observation
         TargetName="GRB-HOST+OT-1"
         Instrument="NICMOS"
         Number="3"
         NumberOfOrbits="1"
         NumberOfIterations="1"
         TotalOrbits="1"
         PureParallel="false"
         CoordinatedParallel="false"
         TargetOfOpportunity="true"
         CVZ="false"
         Duplication="false">
         
         <Configurations>
            
            <Configuration>
               
               <Config>NIC3</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F160W</SpectralElement>
            </Configuration>
         </Configurations>
         
         <ObservationRequirements
            NoConstraints="true" />
         
         <SuitabilityResults
            DaysHigh="0"
            DaysHighMed="0"
            DaysLowMed="0"
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      </Observation>
      
      <Observation
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         Instrument="NICMOS"
         Number="4"
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         NumberOfIterations="1"
         TotalOrbits="1"
         PureParallel="false"
         CoordinatedParallel="false"
         TargetOfOpportunity="true"
         CVZ="false"
         Duplication="false">
         
         <Configurations>
            
            <Configuration>
               
               <Config>NIC3</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F160W</SpectralElement>
            </Configuration>
         </Configurations>
         
         <ObservationRequirements
            NoConstraints="true" />
         
         <SuitabilityResults
            DaysHigh="0"
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            DaysLowMed="0"
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      </Observation>
      
      <Observation
         TargetName="GRB-HOST-1"
         Instrument="NICMOS"
         Number="5"
         NumberOfOrbits="2"
         NumberOfIterations="1"
         TotalOrbits="2"
         PureParallel="false"
         CoordinatedParallel="false"
         TargetOfOpportunity="true"
         CVZ="false"
         Duplication="false">
         
         <Configurations>
            
            <Configuration>
               
               <Config>NIC3</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F160W</SpectralElement>
            </Configuration>
         </Configurations>
         
         <ObservationRequirements
            NoConstraints="true" />
         
         <SuitabilityResults
            DaysHigh="0"
            DaysHighMed="0"
            DaysLowMed="0"
            DaysLow="0"
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      </Observation>
      
      <Observation
         TargetName="GRB-HOST-1"
         Instrument="ACS"
         Number="6"
         NumberOfOrbits="1"
         NumberOfIterations="1"
         TotalOrbits="1"
         PureParallel="false"
         CoordinatedParallel="false"
         TargetOfOpportunity="true"
         CVZ="false"
         Duplication="false">
         
         <Configurations>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F850LP</SpectralElement>
            </Configuration>
         </Configurations>
         
         <ObservationRequirements
            NoConstraints="true" />
         
         <SuitabilityResults
            DaysHigh="0"
            DaysHighMed="0"
            DaysLowMed="0"
            DaysLow="0"
            Visibility=""
            OrbitsPerDay="0"
            ObservationRequirements="NOCONSTRAINTS" />
      </Observation>
      
      <Observation
         TargetName="GRB-HOST+OT-2"
         Instrument="NICMOS"
         Number="7"
         NumberOfOrbits="1"
         NumberOfIterations="1"
         TotalOrbits="1"
         PureParallel="false"
         CoordinatedParallel="false"
         TargetOfOpportunity="true"
         CVZ="false"
         Duplication="false">
         
         <Configurations>
            
            <Configuration>
               
               <Config>NIC3</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F160W</SpectralElement>
            </Configuration>
         </Configurations>
         
         <ObservationRequirements
            NoConstraints="true" />
         
         <SuitabilityResults
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