<?xml version="1.0" encoding="ISO-8859-1"?>

<HSTProposal
   Phase2ID="10452"
   Phase="Phase II"
   AptVersion="Version 13.2 ">
   <!--**********************************************************************************************************************-->
   <!--This file is automatically generated and should not be edited by hand. Editing this file directly is at your own risk.-->
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            HasErrors="false"
            Cycle="13"
            IncludeSysInfo="true"
            NotificationAddress="royle@stsci.edu">
            
            <SystemInformation
               os.arch="ppc"
               os.name="Mac OS X"
               os.version="10.3.6"
               java.version="1.4.2_05" />
            
            <SubmissionComments>Changed to GAIN=2 and moved F658N exposures to the end of the orbit</SubmissionComments>
            
            <SubmissionLog>  ----- Submission 1 (Thu Dec 16 16:11:33 GMT 2004) -----

----- Submission 1 (Tue Dec 21 15:25:33 GMT 2004) -----
</SubmissionLog>
            
            <Phase2DiagnosticJustification>PC says it's OK.</Phase2DiagnosticJustification>
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   <ProposalInformation
      Category="GO/DD"
      PureParallelProposal="false"
      Cycle="13">
      
      <Title>HST/ACS Mosaic of M51</Title>
      
      <Abstract>A six-pointing ACS WFC mosaic of the galaxy pair M51 will be obtained in four filters, B, V, I and H-alpha.  Four orbits per pointing will allow high-quality S/N images of the entire galaxy.</Abstract>
      
      <PrincipalInvestigator
         Honorific="Dr."
         FirstName="Steven"
         LastName="Beckwith"
         ESAMember="false">
         
         <Address
            Institution="Space Telescope Science Institute"
            USState="MD"
            Country="USA" />
      </PrincipalInvestigator>
      
      <CoInvestigator
         Honorific="Dr."
         FirstName="Robert"
         MiddleInitial="C."
         LastName="Kennicutt"
         Suffix="Jr."
         ESAMember="false"
         AdminUSPI="false"
         Contact="false">
         
         <Address
            Institution="University of Arizona"
            USState="AZ"
            Country="USA" />
      </CoInvestigator>
      
      <CoInvestigator
         Honorific="Dr."
         FirstName="Howard"
         MiddleInitial="E."
         LastName="Bond"
         ESAMember="false"
         AdminUSPI="false"
         Contact="false">
         
         <Address
            Institution="Space Telescope Science Institute"
            USState="MD"
            Country="USA" />
      </CoInvestigator>
      
      <CoInvestigator
         Honorific="Dr."
         FirstName="Carol"
         LastName="Christian"
         ESAMember="false"
         AdminUSPI="false"
         Contact="false">
         
         <Address
            Institution="Space Telescope Science Institute"
            USState="MD"
            Country="USA" />
      </CoInvestigator>
      
      <CoInvestigator
         Honorific="Ms."
         FirstName="Lisa"
         LastName="Frattare"
         ESAMember="false"
         AdminUSPI="false"
         Contact="false">
         
         <Address
            Institution="Space Telescope Science Institute"
            USState="MD"
            Country="USA" />
      </CoInvestigator>
      
      <CoInvestigator
         Honorific="Mr."
         FirstName="Forrest"
         LastName="Hamilton"
         ESAMember="false"
         AdminUSPI="false"
         Contact="false">
         
         <Address
            Institution="Computer Sciences Corporation"
            USState="MD"
            Country="USA" />
      </CoInvestigator>
      
      <CoInvestigator
         Honorific="Dr."
         FirstName="Zolt"
         LastName="Levay"
         ESAMember="false"
         AdminUSPI="false"
         Contact="false">
         
         <Address
            Institution="Space Telescope Science Institute"
            USState="MD"
            Country="USA" />
      </CoInvestigator>
      
      <CoInvestigator
         Honorific="Dr."
         FirstName="Max"
         LastName="Mutchler"
         ESAMember="false"
         AdminUSPI="false"
         Contact="false">
         
         <Address
            Institution="Space Telescope Science Institute"
            USState="MD"
            Country="USA" />
      </CoInvestigator>
      
      <CoInvestigator
         Honorific="Dr."
         FirstName="Keith"
         MiddleInitial="S."
         LastName="Noll"
         ESAMember="false"
         AdminUSPI="false"
         Contact="false">
         
         <Address
            Institution="Space Telescope Science Institute"
            USState="MD"
            Country="USA" />
      </CoInvestigator>
      
      <CoInvestigator
         Honorific="Ms."
         FirstName="Tricia"
         LastName="Royle"
         ESAMember="false"
         AdminUSPI="false"
         Contact="false">
         
         <Address
            Institution="Space Telescope Science Institute"
            USState="MD"
            Country="USA" />
      </CoInvestigator>
      
      <Questions>
         
         <Phase2Questions>
            
            <ObservingDescription>The observation will include 6 separate pointings that will be mosaiced into a single final image.  At each pointing the spacecraft will be dithered to cover the ACS chip gap.  Four filters will be used at each pointing.</ObservingDescription>
            
            <RealtimeJustification />
            
            <CalibrationJustification />
            
            <AdditionalComments />
         </Phase2Questions>
      </Questions>
      
      <Orbits
         ThisCyclePrimary="1"
         ThisCycleParallel="0"
         NextCyclePrimary="0"
         NextCycleParallel="0"
         AfterNextPrimary="0"
         AfterNextParallel="0" />
      
      <Phase1ProposalInformation
         TotalTargets="1">
         
         <ScientificCategory />
         
         <ProprietaryPeriod>0</ProprietaryPeriod>
         
         <CalibProp>false</CalibProp>
         
         <Treasury>false</Treasury>
         
         <Legacy>false</Legacy>
         
         <Theory>false</Theory>
         
         <LargeProgram>false</LargeProgram>
      </Phase1ProposalInformation>
      
      <Phase2ProposalInformation
         PCFlag="true">
         
         <Availability>SUPPORTED</Availability>
      </Phase2ProposalInformation>
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         <Comments>First Position -  fourth dither</Comments>
         
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         <Comments>Fifth Position - fourth dither</Comments>
         
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         <Comments>Sixth Position - second dither</Comments>
         
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         <Comments>Sixth Position - third dither</Comments>
         
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         <Comments>Sixth Position - fourth dither</Comments>
         
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            NumberOfIterations="1"
            TimePerExposure="340.0"
            SamePosAs="1"
            RealtimeAnalysis="false"
            RequiresUplink="false"
            Expand="false"
            LowSky="false"
            Shadow="false"
            NewAlignment="false"
            NewObset="false"
            NewObsetFullAcq="false"
            SpecialCommand="false">
            
            <MaxDur />
            
            <MinDur />
            
            <InstrumentParameters
               CR-SPLIT="NO"
               GAIN="2" />
            
            <SubExposures>
               
               <SubExposure
                  OrbitNumber="1" />
            </SubExposures>
         </Exposure>
         
         <Exposure
            Number="3"
            Label="4"
            TargetName="M51-POS6"
            Config="ACS/WFC"
            Opmode="ACCUM"
            Aperture="WFCENTER"
            SpElement="F814W"
            NumberOfIterations="1"
            TimePerExposure="340.0"
            SamePosAs="1"
            RealtimeAnalysis="false"
            RequiresUplink="false"
            Expand="false"
            LowSky="false"
            Shadow="false"
            NewAlignment="false"
            NewObset="false"
            NewObsetFullAcq="false"
            SpecialCommand="false">
            
            <MaxDur />
            
            <MinDur />
            
            <InstrumentParameters
               CR-SPLIT="NO"
               GAIN="2" />
            
            <SubExposures>
               
               <SubExposure
                  OrbitNumber="1" />
            </SubExposures>
         </Exposure>
         
         <Exposure
            Number="4"
            Label="3"
            TargetName="M51-POS6"
            Config="ACS/WFC"
            Opmode="ACCUM"
            Aperture="WFCENTER"
            SpElement="F658N"
            NumberOfIterations="1"
            TimePerExposure="680.0"
            SamePosAs="1"
            RealtimeAnalysis="false"
            RequiresUplink="false"
            Expand="false"
            LowSky="false"
            Shadow="false"
            NewAlignment="false"
            NewObset="false"
            NewObsetFullAcq="false"
            SpecialCommand="false">
            
            <MaxDur />
            
            <MinDur />
            
            <InstrumentParameters
               CR-SPLIT="NO"
               GAIN="2" />
            
            <SubExposures>
               
               <SubExposure
                  OrbitNumber="1" />
            </SubExposures>
         </Exposure>
      </Visit>
   </Visits>
</HSTProposal>

