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   Phase2ID="10909"
   Phase="Phase II"
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            NotificationAddress="dfb@astro.livjm.ac.uk"
            AssignedID="10909">
            
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            <SubmissionComments>Visits R1 and R2 have been modified (ACS --&gt; WFPC2)</SubmissionComments>
            
            <SubmissionLog>          ----- Submission 1 (Fri May 19 16:09:40 GMT 2006) -----

----- Submission 2 (Mon Jul 31 21:04:01 GMT 2006) -----




----- Attempting Submission 4 (Mon Apr 23 20:33:15 GMT 2007) -----
</SubmissionLog>
            
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            AssignedID="680">
            
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            <SubmissionLog>                        
  Assigned ID: 680
----- Submission 1 (Sat Jan 28 00:51:08 GMT 2006) -----











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   <ProposalInformation
      Category="GO"
      PureParallelProposal="false"
      Cycle="15"
      STScIEditNumber="0">
      
      <Title>Exploring the diversity of cosmic explosions: The supernovae of gamma-ray bursts</Title>
      
      <Abstract>While the connection between gamma-ray bursts (GRBs) and supernovae (SNe) is now clearly established, there is a large variety of observational properties among these SNe and the physical parameters of these explosions are poorly known. As part of a comprehensive program, we propose to use HST in order to obtain basic information about the supernovae associated with gamma-ray bursts. HST offers the  means to cleanly separate the light curves of the GRB afterglow from the supernova, and to remove the contamination from the host galaxy, opening a clear route to the fundamental parameters of the SN. From these observations, we will determine the absolute magnitude at maximum, the shape of the spectral energy distribution, and any change over time of the energy distribution. We will also measure the rate of decay of the exponential tail.

Merged with the ground-based data that we will obtain for each event, we will be able to compare our data set to models and constrain the energy of the explosion, the mass of the ejecta and the mass of Nickel synthesized during the explosion. These results will shed light on the apparent variety of supernovae associated with gamma-ray bursts and X-ray flashes, and on the relation between these SNe and other, more common varieties of core-collapse explosions.</Abstract>
      
      <PrincipalInvestigator
         Honorific="Dr."
         FirstName="David"
         LastName="Bersier"
         ESAMember="true"
         ContactCoI="CoI: Dr. Andrew Fruchter "
         AdminCoI="CoI: Dr. Andrew Fruchter "
         AddressVerifiedCycle="15">
         
         <Address
            Institution="Liverpool John Moores University"
            Country="UK" />
      </PrincipalInvestigator>
      
      <CoInvestigator
         Honorific="Dr."
         FirstName="Andrew"
         LastName="Fruchter"
         ESAMember="false"
         UniqueID="719"
         AdminUSPI="true"
         Contact="true"
         AddressVerifiedCycle="15">
         
         <Address
            Institution="Space Telescope Science Institute"
            USState="MD"
            Country="USA" />
      </CoInvestigator>
      
      <CoInvestigator
         Honorific="Dr."
         FirstName="Peter"
         LastName="Garnavich"
         ESAMember="false"
         UniqueID="738"
         AdminUSPI="false"
         Contact="false"
         AddressVerifiedCycle="15">
         
         <Address
            Institution="University of Notre Dame"
            USState="IN"
            Country="USA" />
      </CoInvestigator>
      
      <CoInvestigator
         Honorific="Dr."
         FirstName="Javier"
         LastName="Gorosabel"
         ESAMember="true"
         AdminUSPI="false"
         Contact="false"
         AddressVerifiedCycle="15">
         
         <Address
            Institution="Instituto de Astrofisica de Andalucia (IAA)"
            Country="Spain" />
      </CoInvestigator>
      
      <CoInvestigator
         Honorific="Dr."
         FirstName="Daniel"
         LastName="Kasen"
         ESAMember="false"
         AdminUSPI="false"
         Contact="false"
         AddressVerifiedCycle="15">
         
         <Address
            Institution="The Johns Hopkins University"
            USState="MD"
            Country="USA" />
      </CoInvestigator>
      
      <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="Paolo"
         LastName="Mazzali"
         ESAMember="true"
         UniqueID="5776"
         AdminUSPI="false"
         Contact="false"
         AddressVerifiedCycle="15">
         
         <Address
            Institution="INAF, Osservatorio Astronomico di Trieste"
            Country="Italy" />
      </CoInvestigator>
      
      <CoInvestigator
         Honorific="Dr."
         FirstName="Peter"
         MiddleInitial="E."
         LastName="Nugent"
         ESAMember="false"
         UniqueID="4243"
         AdminUSPI="false"
         Contact="false"
         AddressVerifiedCycle="15">
         
         <Address
            Institution="Lawrence Berkeley National Laboratory"
            USState="CA"
            Country="USA" />
      </CoInvestigator>
      
      <CoInvestigator
         Honorific="Dr."
         FirstName="Elena"
         LastName="Pian"
         ESAMember="true"
         UniqueID="4427"
         AdminUSPI="false"
         Contact="false"
         AddressVerifiedCycle="15">
         
         <Address
            Institution="INAF, Osservatorio Astronomico di Trieste"
            Country="Italy" />
      </CoInvestigator>
      
      <CoInvestigator
         Honorific="Dr."
         FirstName="Nial"
         MiddleInitial="R."
         LastName="Tanvir"
         ESAMember="true"
         UniqueID="2538"
         AdminUSPI="false"
         Contact="false"
         AddressVerifiedCycle="15">
         
         <Address
            Institution="University of Hertfordshire"
            Country="UK" />
      </CoInvestigator>
      
      <CoInvestigator
         Honorific="Dr."
         FirstName="Stan"
         LastName="Woosley"
         ESAMember="false"
         UniqueID="6004"
         AdminUSPI="false"
         Contact="false"
         AddressVerifiedCycle="15">
         
         <Address
            Institution="University of California - Santa Cruz"
            USState="CA"
            Country="USA" />
      </CoInvestigator>
      
      <Questions>
         
         <Phase2Questions>
            
            <ObservingDescription>We want to observe two supernovae associated with a gamma-ray bursts. For each GRB fitting our redshift criterion, we will trigger a series of HST observations. The first set of observations will consist of UV, optical and near-IR data (ACS/HRC, ACS/WFC, NIC), obtained 7-9 days after burst.
The second and third observations will also consist of UV, optical and near-IR data, obtained at 15-18 days, and 24-30 days after burst respectively. Late observations, at 50 and 150 days after burst will also be obtained in the optical to monitor the exponential part of the light curve. Very late time images willl be obtained in all filters about one year after the burst. This will provide a template for accurate subtraction of the host galaxy.
In all observations, the exact filters used will depend on the redshift of the GRB.</ObservingDescription>
            
            <RealtimeJustification />
            
            <CalibrationJustification />
            
            <AdditionalComments>Target of Opportunity observations. We request a 7 day turnaround time.</AdditionalComments>
         </Phase2Questions>
      </Questions>
      
      <Orbits
         ThisCycle2GyroPrimary="24"
         ThisCycle2GyroParallel="0"
         NextCycle2GyroPrimary="12"
         NextCycle2GyroParallel="0"
         AfterNext2GyroPrimary="0"
         AfterNext2GyroParallel="0" />
      
      <Phase1ProposalInformation
         TotalTargets="1"
         Attachment="/userpc28/Proposals/HST/cycle15/sn15.pdf">
         
         <ScientificCategory>HOT STARS</ScientificCategory>
         
         <ScientificKeyword1
            Keyword="BLACK HOLES" />
         
         <ScientificKeyword2
            Keyword="GAMMA-RAY BURSTS" />
         
         <ScientificKeyword3
            Keyword="HOST GALAXIES" />
         
         <ScientificKeyword4
            Keyword="MASSIVE STARS" />
         
         <ScientificKeyword5
            Keyword="SUPERNOVAE" />
         
         <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="false">
         
         <Availability>AVAILABLE</Availability>
      </Phase2ProposalInformation>
   </ProposalInformation>
   
   <Targets>
      
      <FixedTarget
         Name="GRB-SN1"
         Number="1"
         ReferenceFrame="ICRS"
         Redshift="0.54">
         
         <PrimaryCategory>EXT-STAR</PrimaryCategory>
         
         <PrimaryDescription>
            
            <Description>GAMMA RAY BURSTER</Description>
            
            <Description>SUPERNOVA</Description>
         </PrimaryDescription>
         
         <Comments />
         
         <Fluxes>
            
            <BroadBandMagnitude
               Band="V"
               Magnitude="22"
               MagnitudeUnc="2" />
         </Fluxes>
         
         <AlternateNames />
         
         <EquatorialPosition>
            
            <RA
               Hrs="00"
               Mins="00"
               Secs="0.0000" />
            
            <RAUnc
               Arcsec="0.1" />
            
            <DEC
               Degrees="+00"
               Arcmin="00"
               Arcsec="0.00" />
            
            <DECUnc
               Arcsec="0.1" />
            
            <Equinox>J2000</Equinox>
         </EquatorialPosition>
         
         <ProvisionalRA>00 00 0.0000</ProvisionalRA>
         
         <ProvisionalDEC>+00 00 0.00</ProvisionalDEC>
         
         <Equinox>J2000</Equinox>
      </FixedTarget>
      
      <FixedTarget
         Name="GRB060729"
         Number="2"
         ReferenceFrame="ICRS">
         
         <PrimaryCategory>EXT-STAR</PrimaryCategory>
         
         <PrimaryDescription>
            
            <Description>GAMMA RAY BURSTER</Description>
            
            <Description>SUPERNOVA</Description>
            
            <Description>SUPERNOVA TYPE IB</Description>
         </PrimaryDescription>
         
         <Comments />
         
         <Fluxes>
            
            <BroadBandMagnitude
               Band="V"
               Magnitude="24"
               MagnitudeUnc="2" />
         </Fluxes>
         
         <AlternateNames />
         
         <EquatorialPosition>
            
            <RA
               Hrs="06"
               Mins="21"
               Secs="31.8500" />
            
            <RAUnc
               Arcsec="0.1" />
            
            <DEC
               Degrees="-62"
               Arcmin="22"
               Arcsec="12.70" />
            
            <DECUnc
               Arcsec="0.1" />
            
            <Equinox>J2000</Equinox>
         </EquatorialPosition>
         
         <ProvisionalRA>00 00 0.0000</ProvisionalRA>
         
         <ProvisionalDEC>+00 00 0.00</ProvisionalDEC>
         
         <Equinox>J2000</Equinox>
      </FixedTarget>
   </Targets>
   
   <Observations>
      
      <Observation
         TargetName="GRB-SN1"
         Instrument="ACS"
         Number="1"
         NumberOfOrbits="1"
         NumberOfIterations="3"
         TotalOrbits="3"
         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>F555W</SpectralElement>
            </Configuration>
            
            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F625W</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="0"
            DaysHighMed="0"
            DaysLowMed="0"
            DaysLow="0"
            Visibility=""
            OrbitsPerDay="0"
            ObservationRequirements="NOCONSTRAINTS" />
      </Observation>
      
      <Observation
         TargetName="GRB-SN1"
         Instrument="NICMOS"
         Number="2"
         NumberOfOrbits="1"
         NumberOfIterations="3"
         TotalOrbits="3"
         PureParallel="false"
         CoordinatedParallel="false"
         TargetOfOpportunity="true"
         CVZ="false"
         Duplication="false">
         
         <Configurations>
            
            <Configuration>
               
               <Config>NIC2</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F110W</SpectralElement>
            </Configuration>
            
            <Configuration>
               
               <Config>NIC2</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F160W</SpectralElement>
            </Configuration>
            
            <Configuration>
               
               <Config>NIC2</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F222M</SpectralElement>
            </Configuration>
         </Configurations>
         
         <ObservationRequirements
            NoConstraints="true" />
         
         <SuitabilityResults
            DaysHigh="0"
            DaysHighMed="0"
            DaysLowMed="0"
            DaysLow="0"
            Visibility=""
            OrbitsPerDay="0"
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      </Observation>
      
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         TargetName="GRB-SN1"
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         Number="3"
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         NumberOfIterations="2"
         TotalOrbits="2"
         PureParallel="false"
         CoordinatedParallel="false"
         TargetOfOpportunity="true"
         CVZ="false"
         Duplication="false">
         
         <Configurations>
            
            <Configuration>
               
               <Config>ACS/HRC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F250W</SpectralElement>
            </Configuration>
            
            <Configuration>
               
               <Config>ACS/HRC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F330W</SpectralElement>
            </Configuration>
         </Configurations>
         
         <ObservationRequirements
            NoConstraints="true" />
         
         <SuitabilityResults
            DaysHigh="0"
            DaysHighMed="0"
            DaysLowMed="0"
            DaysLow="0"
            Visibility=""
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      </Observation>
      
      <Observation
         TargetName="GRB-SN1"
         Instrument="ACS"
         Number="4"
         NumberOfOrbits="2"
         NumberOfIterations="1"
         TotalOrbits="2"
         PureParallel="false"
         CoordinatedParallel="false"
         TargetOfOpportunity="true"
         CVZ="false"
         Duplication="false">
         
         <Configurations>
            
            <Configuration>
               
               <Config>ACS/HRC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F250W</SpectralElement>
            </Configuration>
            
            <Configuration>
               
               <Config>ACS/HRC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
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               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F250W</SpectralElement>
            </Configuration>
         </Configurations>
         
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            NoConstraints="false"
            Shadow="false"
            LowSky="false"
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            <AfterObservation
               Observation="3">
               
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                  Days="8.0" />
               
               <To
                  Days="12.0" />
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      </Observation>
      
      <Observation
         TargetName="GRB-SN1"
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            <Configuration>
               
               <Config>ACS/WFC</Config>
               
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               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F625W</SpectralElement>
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            <Configuration>
               
               <Config>ACS/WFC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
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            </Configuration>
         </Configurations>
         
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            NoConstraints="false"
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               Observation="1">
               
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                  Days="20.0" />
               
               <To
                  Days="40.0" />
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            DaysHigh="0"
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      <Observation
         TargetName="GRB-SN1"
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         CoordinatedParallel="false"
         TargetOfOpportunity="true"
         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>F625W</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="false">
            
            <AfterObservation
               Observation="5">
               
               <From
                  Days="200.0" />
               
               <To
                  Days="500.0" />
            </AfterObservation>
         </ObservationRequirements>
         
         <SuitabilityResults
            DaysHigh="0"
            DaysHighMed="0"
            DaysLowMed="0"
            DaysLow="0"
            Visibility=""
            OrbitsPerDay="0"
            ObservationRequirements="AFTER  5 BY 200D TO 500D" />
      </Observation>
      
      <Observation
         TargetName="GRB-SN1"
         Instrument="NICMOS"
         Number="7"
         NumberOfOrbits="2"
         NumberOfIterations="1"
         TotalOrbits="2"
         PureParallel="false"
         CoordinatedParallel="false"
         TargetOfOpportunity="true"
         CVZ="false"
         Duplication="false">
         
         <Configurations>
            
            <Configuration>
               
               <Config>NIC2</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F110W</SpectralElement>
            </Configuration>
            
            <Configuration>
               
               <Config>NIC2</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F160W</SpectralElement>
            </Configuration>
            
            <Configuration>
               
               <Config>NIC2</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F222M</SpectralElement>
            </Configuration>
         </Configurations>
         
         <ObservationRequirements
            NoConstraints="false"
            Shadow="false"
            LowSky="false"
            SameOrient="false">
            
            <AfterObservation
               Observation="2">
               
               <From
                  Days="350.0" />
               
               <To
                  Days="650.0" />
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         <SuitabilityResults
            DaysHigh="0"
            DaysHighMed="0"
            DaysLowMed="0"
            DaysLow="0"
            Visibility=""
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            ObservationRequirements="AFTER  2 BY 350D TO 650D" />
      </Observation>
      
      <Observation
         TargetName="GRB-SN1"
         Instrument="ACS"
         Number="8"
         NumberOfOrbits="2"
         NumberOfIterations="1"
         TotalOrbits="2"
         PureParallel="false"
         CoordinatedParallel="false"
         TargetOfOpportunity="true"
         CVZ="false"
         Duplication="false">
         
         <Configurations>
            
            <Configuration>
               
               <Config>ACS/HRC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F250W</SpectralElement>
            </Configuration>
            
            <Configuration>
               
               <Config>ACS/HRC</Config>
               
               <ScienceMode>Imaging</ScienceMode>
               
               <Coronography>No</Coronography>
               
               <Polarimetry>No</Polarimetry>
               
               <SpectralElement>F330W</SpectralElement>
            </Configuration>
         </Configurations>
         
         <ObservationRequirements
            NoConstraints="false"
            Shadow="false"
            LowSky="false"
            SameOrient="false">
            
            <AfterObservation
               Observation="3">
               
               <From
                  Days="300.0" />
               
               <To
                  Days="600.0" />
            </AfterObservation>
         </ObservationRequirements>
         
         <SuitabilityResults
            DaysHigh="0"
            DaysHighMed="0"
            DaysLowMed="0"
            DaysLow="0"
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               NSAMP="22" />
            
            <SubExposures>
               
               <SubExposure
                  OrbitNumber="2" />
            </SubExposures>
         </Exposure>
         
         <Exposure
            Number="8"
            Label="F160/last"
            TargetName="GRB060729"
            Config="NIC3"
            Opmode="MULTIACCUM"
            Aperture="NIC3"
            SpElement="F160W"
            NumberOfIterations="1"
            TimePerExposure="DEF"
            RealtimeAnalysis="false"
            RequiresUplink="false"
            Expand="false"
            LowSky="false"
            Shadow="false"
            NewAlignment="false"
            NewObset="false"
            NewObsetFullAcq="false"
            SpecialCommand="false">
            
            <PosTarg
               X="1.528"
               Y="1.523" />
            
            <MaxDur />
            
            <MinDur />
            
            <Comments />
            
            <InstrumentParameters
               SAMP-SEQ="SPARS32"
               NSAMP="22" />
            
            <SubExposures>
               
               <SubExposure
                  OrbitNumber="2" />
            </SubExposures>
         </Exposure>
      </Visit>
   </Visits>
</HSTProposal>

