! Proposal 6244, submission 1
! PI: Michael Jura
! Received Mon Apr 10 13:45:34 EDT 1995
! From: pi12@stsci.edu
! Hubble Space Telescope Cycle 5 (1995) Phase II Proposal Template
! 
!   Refer to the HST Phase II Proposal Instructions to fill this out  
!
!   Anything after a "!" is ignored, and may be deleted
!
!   All keywords with multiple entries are comma delimited except the
!   Visit_Requirements and Special_Requirements keywords which can be
!   delimited with carriage returns or semi-colons, but not commas
!
!   For help call your Program Coordinator: Dustin Manning,
!               Phone: 410/338-4465, E-mail: manning@stsci.edu
! 

Proposal_Information                    ! Section 4
              Title: HR 4796A: A Possible Protoplanet? 

  Proposal_Category: GTO/HRS
Scientific_Category:                    ! Uncomment one of the following    
                
                ! AGN
                ! Cool Stars
                ! Galaxies & Clusters
              Hot Stars
                ! Interstellar Medium
                ! Quasars
                ! Solar System
                ! Stellar Populations
                
              Cycle:  5

Investigators
            PI_Name: Michael Jura    
     PI_Institution: University of California, Los Angeles            

           CoI_Name: Andrea Ghez        ! Repeat as often as necessary
    CoI_Institution: University of California, Los Angeles
            Contact: N                  ! Y or N 
                                        ! (designate at most one contact)

Abstract:                               ! Free format text (clear and concise)

          HR 4796A is a main sequence A-type star with more
circumstellar dust than is located around Beta Pic.  We propose to 
observe and classify HR 4796D, a close, faint, blue companion to HR 
4796A. Is HR 4796D a background or foreground star, or is it
physically associated with HR 4796A, perhaps a cloud of dust or a 
protoplanet?

Questions                               ! Free format text (clear and concise)


    Observing_Description: 

            We propose to use the FOS aboard HST to obtain a spectrum
of the unidentified source HR 4796D using the FOS/RD detector with the
G570H grating.  The plan for target acquisition is to first acquire 
HR 4796A, a bright (mv = 5.8) nearby A0V star, using the FOS/BL 
detector with the G190H grating.  After centering HR 4796A via a 4 
stage Peak/up, an offset will be performed (sep = 4.9", PA = 315D) 
centering HR 4796D into the 0.5" aperature of the FOS/RD detector.
A final PEAK/UP is performed to accurately center HR 4796D, and then 
the source is observed.  The FOS exposure time is set by requiring a
minimum SNR of 20, sufficient to identify normal stellar spectral 
features.

  Real_Time_Justification: None

Calibration_Justification: None

      Additional_Comments: None


Fixed_Targets                           ! Section 5.1
  Target_Number: 1
    Target_Name: HR-4796A-OFFSET
Alternate_Names: HD109573
    Description: STAR, A0-A3 V-IV
       Position: RA=12H 36M 1.11S +/- 0.1S,
                 DEC=-39D 52' 11.2" +/- 0.2"
        Equinox: J2000
        RV_or_Z:
          RA_PM: -0.0034                ! Units are seconds of time per year
         Dec_PM: -0.044                 ! Units are seconds of arc per year
          Epoch: 2000
Annual_Parallax:               
           Flux: V=5.8 +/- 0.1          ! Include at least V and B-V
                 B-V=0.0 +/- 0.2
                 TYPE=A0V
       Comments:           

Fixed_Targets                           ! Section 5.1
  Target_Number: 2
    Target_Name: HR-4796D
Alternate_Names: 
    Description: UNIDENTIFIED, Optical Emitter
       Position: R = 4.9", PA = 315D, FROM 1

        Equinox: J2000
        RV_or_Z: 
          RA_PM:                        ! Units are seconds of time per year
         Dec_PM:                        ! Units are seconds of arc per year
          Epoch: 2000
Annual_Parallax:               
           Flux: V=16.3 +/- 1           ! Include at least V and B-V
                 B-V=0.0 +/- 1.0
       Comments: Measured R(Johnson) magnitude = 16.3, but V magnitude
                 is uncertain 

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

!Scan_Data                               ! Appendix B
!    Scan_Number: 
!       FGS_Scan:               
!  Cont_or_Dwell:               
!   Dwell_Points:               
!     Dwell_Secs:               
!     Scan_Width:               
!    Scan_Length:               
!    Sides_Angle:               
!   Number_Lines:               
!      Scan_Rate:           
!  First_Line_PA:               
!     Scan_Frame:               
!  Length_Offset:               
!   Width_Offset:               

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

! This is a template for a single visit containing a single exposure 
! Repeat exposure and visit blocks as needed

Visits                                  ! Section 6
      Visit_Number: 1
Visit_Requirements:                     ! Section 7.1

! Uncomment or copy visit level special requirements needed
! Most of these requirements (including ORIENT) will limit scheduling
        
        ! PCS MODE [Fine | Gyro]
        ! GUIDing TOLerance <angle>   
        ! ORIENTation <angle1> TO <angle2>
        ! ORIENTation <angle1> TO <angle2> FROM <visit>
        ! ORIENTation <angle1> TO <angle2> FROM NOMINAL
        ! SAME ORIENTation AS <visit>
        ! CVZ
        ! PARallel 
        ! AFTER <visit> [BY <time1> [TO <time2>]]
        ! AFTER <date>
        ! BEFORE <date>
        ! BETWEEN <date1> AND <date2>
        ! GROUP <visit-list> WITHIN <time>
        ! PERIOD <time> AND ZERO-PHASE <date>
        ! SEQ <visit-list> WITHIN <time>
        ! ON HOLD [FOR <visit>]

  On_Hold_Comments:
    Visit_Comments:

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
     Exposure_Number: 1                 ! Section 6.5
         Target_Name: HR-4796A-OFFSET
              Config: FOS/BL              
              Opmode: ACQ/PEAK              
            Aperture: 4.3            
          Sp_Element: G190H          
          Wavelength:           
 Optional_Parameters: SCAN-STEP-Y=1.204
                      SEARCH-SIZE-X=1
                      SEARCH-SIZE-Y=3
Number_of_Iterations: 1
   Time_Per_Exposure: 0.03S        
Special_Requirements:                   ! Section 7.2
  
! Uncomment or copy exposure level special requirements needed
   
        ! INTeractive ACQuisition FOR <exp-list>
     ONBOARD ACQuisition FOR 2
        ! POSition TARGet <x-value>,<y-value>
        ! SAME POSition AS <exp>
        ! DO FOR TARGets <targ-list>    ! FGS only
        ! PARallel WITH <exp>
        ! GROUP-FGS <exp-list> WITHIN <time>
        ! SPATIAL SCAN <#> [<exp-list> | SINGLE-EXP ]  
        ! RT ANALYSIS [FOR <exp-list>]
        ! REQuires UPLINK
        ! DARK TIME
        ! END ORBIT
        ! EXPAND
        ! MAXimum DURation [<time> | <%>]
        ! MINimum DURation [<time> | <%>]
        ! NO SPLIT
        ! PHASE <number1[0,1]> TO <number2[0,1]>
        ! SEQuence <exp-list> NON-INTerruptible
            Comments:         


 
     Exposure_Number: 2                 ! Section 6.5
         Target_Name: HR-4796A-OFFSET
              Config: FOS/BL              
              Opmode: ACQ/PEAK              
            Aperture: 1.0            
          Sp_Element: G190H          
          Wavelength:           
 Optional_Parameters: SCAN-STEP-X=0.602 
                      SCAN-STEP-Y=0.602
                      SEARCH-SIZE-X=6
                      SEARCH-SIZE-Y=2
Number_of_Iterations: 1
   Time_Per_Exposure: 0.04S        
Special_Requirements:                   ! Section 7.2
  
! Uncomment or copy exposure level special requirements needed

        ! INTeractive ACQuisition FOR <exp-list>
     ONBOARD ACQuisition FOR 3
        ! POSition TARGet <x-value>,<y-value>
        ! SAME POSition AS <exp>
        ! DO FOR TARGets <targ-list>    ! FGS only
        ! PARallel WITH <exp>
        ! GROUP-FGS <exp-list> WITHIN <time>
        ! SPATIAL SCAN <#> [<exp-list> | SINGLE-EXP ]  
        ! RT ANALYSIS [FOR <exp-list>]
        ! REQuires UPLINK
        ! DARK TIME
        ! END ORBIT
        ! EXPAND
        ! MAXimum DURation [<time> | <%>]
        ! MINimum DURation [<time> | <%>]
        ! NO SPLIT
        ! PHASE <number1[0,1]> TO <number2[0,1]>
        ! SEQuence <exp-list> NON-INTerruptible
            Comments:         

 
     Exposure_Number: 3                 ! Section 6.5
         Target_Name: HR-4796A-OFFSET
              Config: FOS/BL              
              Opmode: ACQ/PEAK              
            Aperture: 0.5            
          Sp_Element: G190H          
          Wavelength:           
 Optional_Parameters: SCAN-STEP-X=0.30 
                      SCAN-STEP-Y=0.30
                      SEARCH-SIZE-X=3
                      SEARCH-SIZE-Y=3
Number_of_Iterations: 1
   Time_Per_Exposure: 0.04S
Special_Requirements:                   ! Section 7.2
  
! Uncomment or copy exposure level special requirements needed

        ! INTeractive ACQuisition FOR <exp-list>
     ONBOARD ACQuisition FOR 4
        ! POSition TARGet <x-value>,<y-value>
        ! SAME POSition AS <exp>
        ! DO FOR TARGets <targ-list>    ! FGS only
        ! PARallel WITH <exp>
        ! GROUP-FGS <exp-list> WITHIN <time>
        ! SPATIAL SCAN <#> [<exp-list> | SINGLE-EXP ]  
        ! RT ANALYSIS [FOR <exp-list>]
        ! REQuires UPLINK
        ! DARK TIME
        ! END ORBIT
        ! EXPAND
        ! MAXimum DURation [<time> | <%>]
        ! MINimum DURation [<time> | <%>]
        ! NO SPLIT
        ! PHASE <number1[0,1]> TO <number2[0,1]>
        ! SEQuence <exp-list> NON-INTerruptible
            Comments:         

 
     Exposure_Number: 4                 ! Section 6.5
         Target_Name: HR-4796A-OFFSET
              Config: FOS/BL              
              Opmode: ACQ/PEAK              
            Aperture: 0.3 
          Sp_Element: G190H
          Wavelength:      
 Optional_Parameters: SCAN-STEP-X=0.172 
                      SCAN-STEP-Y=0.172
                      SEARCH-SIZE-X=3
                      SEARCH-SIZE-Y=3
Number_of_Iterations: 1
   Time_Per_Exposure: 0.04S
Special_Requirements:                   ! Section 7.2
  
! Uncomment or copy exposure level special requirements needed

        ! INTeractive ACQuisition FOR <exp-list>
     ONBOARD ACQuisition FOR 5
        ! POSition TARGet <x-value>,<y-value>
        ! SAME POSition AS <exp>
        ! DO FOR TARGets <targ-list>    ! FGS only
        ! PARallel WITH <exp>
        ! GROUP-FGS <exp-list> WITHIN <time>
        ! SPATIAL SCAN <#> [<exp-list> | SINGLE-EXP ]  
        ! RT ANALYSIS [FOR <exp-list>]
        ! REQuires UPLINK
        ! DARK TIME
        ! END ORBIT
        ! EXPAND
        ! MAXimum DURation [<time> | <%>]
        ! MINimum DURation [<time> | <%>]
        ! NO SPLIT
        ! PHASE <number1[0,1]> TO <number2[0,1]>
        ! SEQuence <exp-list> NON-INTerruptible
            Comments:         


     Exposure_Number: 5                 ! Section 6.5
         Target_Name: HR-4796D
              Config: FOS/RD      
              Opmode: ACQ/PEAK              
            Aperture: 0.3
          Sp_Element: G570H          
          Wavelength:           
 Optional_Parameters: SEARCH-SIZE-X=5
                      SEARCH-SIZE-Y=5
                      SCAN-STEP-X=0.17
                      SCAN-STEP-Y=0.17
Number_of_Iterations: 1
   Time_Per_Exposure: 12S        
Special_Requirements: ONBOARD ACQuisition FOR 6
            Comments: 

     Exposure_Number: 6                 ! Section 6.5
         Target_Name: HR-4796D
              Config: FOS/RD               
              Opmode: ACCUM              
            Aperture: 0.5            
          Sp_Element: G570H          
          Wavelength: 5700          
 Optional_Parameters: 
Number_of_Iterations: 1
   Time_Per_Exposure: 300S        
Special_Requirements:                   ! Section 7.2
  
! Uncomment or copy exposure level special requirements needed

        ! INTeractive ACQuisition FOR <exp-list>
        ! ONBOARD ACQuisition FOR <exp-list>
        ! POSition TARGet <x-value>,<y-value>
        ! SAME POSition AS <exp>
        ! DO FOR TARGets <targ-list>    ! FGS only
        ! PARallel WITH <exp>
        ! GROUP-FGS <exp-list> WITHIN <time>
        ! SPATIAL SCAN <#> [<exp-list> | SINGLE-EXP ]  
        ! RT ANALYSIS [FOR <exp-list>]
        ! REQuires UPLINK
        ! DARK TIME
     END ORBIT
     EXPAND
        ! MAXimum DURation [<time> | <%>]
        ! MINimum DURation [<time> | <%>]
        ! NO SPLIT
        ! PHASE <number1[0,1]> TO <number2[0,1]>
        ! SEQuence <exp-list> NON-INTerruptible
            Comments:         

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Data_Distribution                       ! Defaults indicated; change if desired

         Medium: 8MM                    ! 8MM or 6250BPI or 1600BPI
Blocking_Factor: 10                     ! 10 or 1
                                        ! Only astronomers with very old 9-
                                        ! track tape drives should consider 
                                        ! a blocking factor of 1
                            
        Ship_To: PI_Address             ! STSCI or PI_Address or <free-text>
                        



       Ship_Via: UPS                    ! UPS (2-day) or OVERNIGHT
                                        ! Overnight shipping done at PI expense
                                     
Recipient_Email: !jura@bonnie.astro.ucla.edu 
                                        ! Needed if Ship_To: is not PI_Address
                                        ! <free-text>

! Let us know what you think of this template and software! 
! Please send a list of your likes and dislikes to your Program Coordinator