!  +====================+
!  | PED OUTPUT PRODUCT |
!  +====================+
!
!  /data/frodo1/aroman/work/6659.prop
!  Generated by PREPROCESSOR, version 7.1f
!  Date: Mon May 05 13:07:16 EDT 1997

Proposal_Information
              Title: A Search For Superplanets Around Weak T- Tauri Stars
  Proposal_Category: GO
Scientific_Category: COOL STARS
              Cycle: 6


Investigators

            PI_Name: Robert A. Brown
     PI_Institution: Space Telescope Science Institute


           CoI_Name: David W. Latham
    CoI_Institution: Smithsonian Astrophysical Observatory
            Contact: 

           CoI_Name: Guillermo Torres
    CoI_Institution: Smithsonian Astrophysical Observatory
            Contact: Y

           CoI_Name: Michal Simon
    CoI_Institution: State University of New York at Stony Brook
            Contact: 

           CoI_Name: Paola Sartoretti
    CoI_Institution: National Optical Astronomy Observatories
            Contact: 


Abstract:
This project is a search for "superplanets" around selected
pre-main-sequence stars in the 1 micron band using WFPC2.  Weak
T-Tauri stars (WTTS) are thought to have dissipated their
circumstellar disks recently, possibly by forming planetary systems.
We propose to observe 16 WTTS in Taurus-Auriga and Ophiuchus, the
nearest star-forming regions, concentrating on targets that have been
demonstrated not to have stellar companions based on recent speckle
imaging, deep imaging with CCD and infrared arrays from the ground,
and lunar-occultation observations.  Superplanets would be detected in
their intrinsic thermal radiation.  Because of the superb peak-to-wing
ratio of its point spread function, HST is uniquely capable of
performing this survey and determining the statistical occurrence of
superplanets.


Questions


    Observing_Description:
In this proposal we request 2 exposures per target through the F1042M
filter at each of two spacecraft roll angles. Based on the recent
detection of the brown dwarf Gls 229 B with WFPC2 by another group, we
have determined that this filter will give us much better contrast
between a superplanet and the star than the F785LP (I band) filter we
had originally proposed.  The two roll angles allow us to distinguish
between faint companions and residual features of the PSF near the
limit of our sensitivity.  Dithering between the two exposures in each
orbit will aid in bad pixel removal, and splitting each exposure in
two will allow for cosmic ray removal. The maximum exposure per orbit
on each target allowed by the overheads reported by the RPS2 software
is 2100 seconds.

  Real_Time_Justification:
In order to allow us time to examine at least some of exposures before
we receive the bulk of the data, we have added the constraint that
three of our targets be observed before 1996 Aug 15. This will give us
some flexibility for maximizing the scientific return in the rest of
the exposures, should we make a detection.

Calibration_Justification:


      Additional_Comments:



Fixed_Targets

  Target_Number: 1
    Target_Name: HBC374
Alternate_Names: GSC1827_176
    Description: STAR,T TAURI STAR,K V-IV
       Position: RA=4H 18M 47.10S +/- 0.3",DEC=28D 20' 8.0" +/- 0.3",PLATE-ID=0051
        Equinox: J2000
        RV_or_Z: 
          RA_PM: 0.0
         Dec_PM: 0.0
          Epoch: 
Annual_Parallax: 0.0
           Flux: 
                V = 12.67+/-0.09
                B-V = +1.68+/-0.1
                TYPE=K7
       Comments: 

  Target_Number: 2
    Target_Name: HBC376
Alternate_Names: GSC1268_664
    Description: STAR,T TAURI STAR,K V-IV
       Position: RA=4H 18M 51.71S +/- 0.2",DEC=17D 23' 17.0" +/- 0.2",PLATE-ID=000O
        Equinox: J2000
        RV_or_Z: 
          RA_PM: 0.0
         Dec_PM: 0.0
          Epoch: 
Annual_Parallax: 0.0
           Flux: 
                V = 12.26+/-0.04
                B-V = +1.12+/-0.1
                TYPE=K7
       Comments: 

  Target_Number: 3
    Target_Name: HBC397
Alternate_Names: GSC1270_1195
    Description: STAR,T TAURI STAR,K V-IV
       Position: RA=4H 32M 9.28S +/- 0.2",DEC=17D 57' 22.9" +/- 0.2",PLATE-ID=000P
        Equinox: J2000
        RV_or_Z: 
          RA_PM: 0.0
         Dec_PM: 0.0
          Epoch: 
Annual_Parallax: 0.0
           Flux: 
                V = 12.06+/-0.05
                B-V = +1.23+/-0.1
                TYPE=K7
       Comments: 

  Target_Number: 4
    Target_Name: V827-TAU
Alternate_Names: HBC399,GSC1270_1108
    Description: STAR,T TAURI STAR,K V-IV
       Position: RA=4H 32M 14.55S +/- 0.2",DEC=18D 20' 15.0" +/- 0.2",PLATE-ID=000P
        Equinox: J2000
        RV_or_Z: 
          RA_PM: 0.0
         Dec_PM: 0.0
          Epoch: 
Annual_Parallax: 0.0
           Flux: 
                V = 12.27+/-0.13
                B-V = +1.41+/-0.05
                TYPE=K7
       Comments: 

  Target_Number: 5
    Target_Name: V826-TAU
Alternate_Names: HBC400,GSC1270_604
    Description: STAR,T TAURI STAR,K V-IV
       Position: RA=4H 32M 15.82S +/- 0.2",DEC=18D 1' 39.1" +/- 0.2",PLATE-ID=000P
        Equinox: J2000
        RV_or_Z: 
          RA_PM: 0.0
         Dec_PM: 0.0
          Epoch: 
Annual_Parallax: 0.0
           Flux: 
                V = 12.11+/-0.06
                B-V = +1.39+/-0.02
                TYPE=K7
       Comments: 

  Target_Number: 6
    Target_Name: STAR0437+2413
Alternate_Names: GSC1830_259
    Description: STAR,T TAURI STAR,F0-F2
       Position: RA=4H 36M 49.08S +/- 0.3",DEC=24D 12' 58.9" +/- 0.3",PLATE-ID=000L
        Equinox: J2000
        RV_or_Z: 
          RA_PM: 0.0
         Dec_PM: 0.0
          Epoch: 
Annual_Parallax: 0.0
           Flux: 
                V = 10.29+/-0.05
                B-V = +0.77+/-0.1
                TYPE=F2V
       Comments: 

  Target_Number: 7
    Target_Name: HBC419
Alternate_Names: GSC1278_193
    Description: STAR,T TAURI STAR,K V-IV
       Position: RA=4H 39M 17.73S +/- 0.3",DEC=22D 21' 3.8" +/- 0.3",PLATE-ID=000L
        Equinox: J2000
        RV_or_Z: 
          RA_PM: 0.0
         Dec_PM: 0.0
          Epoch: 
Annual_Parallax: 0.0
           Flux: 
                V = 12.41+/-0.40
                B-V = +1.37+/-0.06
                TYPE=K5V
       Comments: 

  Target_Number: 8
    Target_Name: HBC426
Alternate_Names: GSC2387_637
    Description: STAR,T TAURI STAR,K V-IV
       Position: RA=4H 55M 36.97S +/- 0.2",DEC=30D 17' 55.5" +/- 0.2",PLATE-ID=02TR
        Equinox: J2000
        RV_or_Z: 
          RA_PM: 0.0
         Dec_PM: 0.0
          Epoch: 
Annual_Parallax: 0.0
           Flux: 
                V = 10.85+/-0.05
                B-V = +1.02+/-0.1
                TYPE=K0V
       Comments: 

  Target_Number: 9
    Target_Name: SU-AUR
Alternate_Names: HBC79,GSC2387_977
    Description: STAR,T TAURI STAR,G III-I
       Position: RA=4H 55M 59.26S +/- 0.3",DEC=30D 34' 1.9" +/- 0.3",PLATE-ID=02TR
        Equinox: J2000
        RV_or_Z: 
          RA_PM: 0.0
         Dec_PM: 0.0
          Epoch: 
Annual_Parallax: 0.0
           Flux: 
                V = 9.15+/-0.11
                B-V = +0.89+/-0.03
                TYPE=G2III
       Comments: 

  Target_Number: 10
    Target_Name: HBC427
Alternate_Names: GSC2387_535
    Description: STAR,T TAURI STAR,K V-IV
       Position: RA=4H 56M 2.03S +/- 0.2",DEC=30D 21' 4.1" +/- 0.2",PLATE-ID=02TR
        Equinox: J2000
        RV_or_Z: 
          RA_PM: 0.0
         Dec_PM: 0.0
          Epoch: 
Annual_Parallax: 0.0
           Flux: 
                V = 11.60+/-0.05
                B-V = +1.28+/-0.1
                TYPE=K7
       Comments: 

  Target_Number: 11
    Target_Name: V836-TAU
Alternate_Names: HBC429,GSC1849_1615
    Description: STAR,T TAURI STAR,K V-IV
       Position: RA=5H 3M 6.60S +/- 0.2",DEC=25D 23' 19.6" +/- 0.2",PLATE-ID=005N
        Equinox: J2000
        RV_or_Z: 
          RA_PM: 0.0
         Dec_PM: 0.0
          Epoch: 
Annual_Parallax: 0.0
           Flux: 
                V = 13.12+/-0.10
                B-V = +1.51+/-0.04
                TYPE=K7
       Comments: 

  Target_Number: 12
    Target_Name: STAR1601-2241
Alternate_Names: GSC6779_174
    Description: STAR,T TAURI STAR
       Position: RA=16H 1M 25.63S +/- 0.3",DEC=-22D 40' 40.3" +/- 0.3",PLATE-ID=08U0
        Equinox: J2000
        RV_or_Z: 
          RA_PM: 0.0
         Dec_PM: 0.0
          Epoch: 
Annual_Parallax: 0.0
           Flux: 
                V = 12.2+/-0.5
       Comments: 

  Target_Number: 13
    Target_Name: HBC630
Alternate_Names: GSC6209_968
    Description: STAR,T TAURI STAR,K V-IV
       Position: RA=16H 11M 8.88S +/- 0.3",DEC=-19D 4' 46.2" +/- 0.3",PLATE-ID=00H3
        Equinox: J2000
        RV_or_Z: 
          RA_PM: 0.0
         Dec_PM: 0.0
          Epoch: 
Annual_Parallax: 0.0
           Flux: 
                V = 11.90+/-0.05
                B-V = +1.32+/-0.1
                TYPE=K2IV
       Comments: 

  Target_Number: 14
    Target_Name: HBC633
Alternate_Names: GSC6209_1039
    Description: STAR,T TAURI STAR,K V-IV
       Position: RA=16H 11M 59.24S +/- 1.2",DEC=-19D 6' 51.7" +/- 1.2",PLATE-ID=00H3
        Equinox: J2000
        RV_or_Z: 
          RA_PM: 0.0
         Dec_PM: 0.0
          Epoch: 
Annual_Parallax: 0.0
           Flux: 
                V = 11.65+/-0.05
                B-V = +1.09+/-0.1
                TYPE=K1IV
       Comments: 

  Target_Number: 15
    Target_Name: HBC636
Alternate_Names: GSC6798_173
    Description: STAR,T TAURI STAR,M V-IV
       Position: RA=16H 25M 49.68S +/- 0.4",DEC=-24D 51' 31.1" +/- 0.4",PLATE-ID=02J6
        Equinox: J2000
        RV_or_Z: 
          RA_PM: 0.0
         Dec_PM: 0.0
          Epoch: 
Annual_Parallax: 0.0
           Flux: 
                V = 13.2+/-0.1
                B-V = +1.5+/-0.1
                TYPE=M0
       Comments: 

  Target_Number: 16
    Target_Name: HBC637
Alternate_Names: GSC6798_289
    Description: STAR,T TAURI STAR,G V-IV
       Position: RA=16H 26M 3.07S +/- 0.4",DEC=-24D 23' 36.1" +/- 0.4",PLATE-ID=02J6
        Equinox: J2000
        RV_or_Z: 
          RA_PM: 0.0
         Dec_PM: 0.0
          Epoch: 
Annual_Parallax: 0.0
           Flux: 
                V = 13.95+/-0.05
                B-V = +2.14+/-0.1
                TYPE=G
       Comments: 


Solar_System_Targets


Generic_Targets


Scan_Data


Visits

      Visit_Number: 01
Visit_Requirements: 
  On_Hold_Comments: 
    Visit_Comments: Same pair of Guide Stars between this visit and 02, if possible. Seek off-nominal roll angles to facilitate this.

     Exposure_Number: 10
         Target_Name: HBC374
              Config: WFPC2
              Opmode: IMAGE
            Aperture: PC1-FIX
          Sp_Element: F1042M
          Wavelength: 
 Optional_Parameters: ATD-GAIN=7,DITHER-LINE-SPACING=0.3217,DITHER-LINE-STEPS=2,DITHER-TYPE=LINE
Number_of_Iterations: 1
   Time_Per_Exposure: 970 S
Special_Requirements: 
            Comments: 

      Visit_Number: 02
Visit_Requirements: 
                ORIENT 25D TO 25D FROM 01
  On_Hold_Comments: 
    Visit_Comments: ORIENT -25D TO -25D FROM 01 also acceptable. Same pair of Guide Stars between this visit and 01, if possible. Seek off-nominal roll angles to facilitate this.

     Exposure_Number: 11
         Target_Name: HBC374
              Config: WFPC2
              Opmode: IMAGE
            Aperture: PC1-FIX
          Sp_Element: F1042M
          Wavelength: 
 Optional_Parameters: ATD-GAIN=7,DITHER-LINE-SPACING=0.3217,DITHER-LINE-STEPS=2,DITHER-TYPE=LINE
Number_of_Iterations: 1
   Time_Per_Exposure: 970 S
Special_Requirements: 
            Comments: 

      Visit_Number: 03
Visit_Requirements: 
  On_Hold_Comments: 
    Visit_Comments: Same pair of Guide Stars between this visit and 04, if possible. Seek off-nominal roll angles to facilitate this.

     Exposure_Number: 12
         Target_Name: HBC376
              Config: WFPC2
              Opmode: IMAGE
            Aperture: PC1-FIX
          Sp_Element: F1042M
          Wavelength: 
 Optional_Parameters: ATD-GAIN=7,DITHER-LINE-SPACING=0.3217,DITHER-LINE-STEPS=2,DITHER-TYPE=LINE
Number_of_Iterations: 1
   Time_Per_Exposure: 970 S
Special_Requirements: 
            Comments: 

      Visit_Number: 04
Visit_Requirements: 
                ORIENT 25D TO 25D FROM 03
  On_Hold_Comments: 
    Visit_Comments: ORIENT -25D TO -25D FROM 03 also acceptable. Same pair of Guide Stars between this visit and 03, if possible. Seek off-nominal roll angles to facilitate this.

     Exposure_Number: 13
         Target_Name: HBC376
              Config: WFPC2
              Opmode: IMAGE
            Aperture: PC1-FIX
          Sp_Element: F1042M
          Wavelength: 
 Optional_Parameters: ATD-GAIN=7,DITHER-LINE-SPACING=0.3217,DITHER-LINE-STEPS=2,DITHER-TYPE=LINE
Number_of_Iterations: 1
   Time_Per_Exposure: 970 S
Special_Requirements: 
            Comments: 

      Visit_Number: 05
Visit_Requirements: 
  On_Hold_Comments: 
    Visit_Comments: Same pair of Guide Stars between this visit and 06, if possible. Seek off-nominal roll angles to facilitate this.

     Exposure_Number: 14
         Target_Name: HBC397
              Config: WFPC2
              Opmode: IMAGE
            Aperture: PC1-FIX
          Sp_Element: F1042M
          Wavelength: 
 Optional_Parameters: ATD-GAIN=7,DITHER-LINE-SPACING=0.3217,DITHER-LINE-STEPS=2,DITHER-TYPE=LINE
Number_of_Iterations: 1
   Time_Per_Exposure: 970 S
Special_Requirements: 
            Comments: 

      Visit_Number: 06
Visit_Requirements: 
                ORIENT 25D TO 25D FROM 05
  On_Hold_Comments: 
    Visit_Comments: ORIENT -25D TO -25D FROM 05 also acceptable. Same pair of Guide Stars between this visit and 05, if possible. Seek off-nominal roll angles to facilitate this.

     Exposure_Number: 15
         Target_Name: HBC397
              Config: WFPC2
              Opmode: IMAGE
            Aperture: PC1-FIX
          Sp_Element: F1042M
          Wavelength: 
 Optional_Parameters: ATD-GAIN=7,DITHER-LINE-SPACING=0.3217,DITHER-LINE-STEPS=2,DITHER-TYPE=LINE
Number_of_Iterations: 1
   Time_Per_Exposure: 970 S
Special_Requirements: 
            Comments: 

      Visit_Number: 07
Visit_Requirements: 
  On_Hold_Comments: 
    Visit_Comments: Same pair of Guide Stars between this visit and 08, if possible. Seek off-nominal roll angles to facilitate this.

     Exposure_Number: 16
         Target_Name: V827-TAU
              Config: WFPC2
              Opmode: IMAGE
            Aperture: PC1-FIX
          Sp_Element: F1042M
          Wavelength: 
 Optional_Parameters: ATD-GAIN=7,DITHER-LINE-SPACING=0.3217,DITHER-LINE-STEPS=2,DITHER-TYPE=LINE
Number_of_Iterations: 1
   Time_Per_Exposure: 970 S
Special_Requirements: 
            Comments: 

      Visit_Number: 08
Visit_Requirements: 
                ORIENT 25D TO 25D FROM 07
  On_Hold_Comments: 
    Visit_Comments: ORIENT -25D TO -25D FROM 07 also acceptable. Same pair of Guide Stars between this visit and 07, if possible. Seek off-nominal roll angles to facilitate this.

     Exposure_Number: 17
         Target_Name: V827-TAU
              Config: WFPC2
              Opmode: IMAGE
            Aperture: PC1-FIX
          Sp_Element: F1042M
          Wavelength: 
 Optional_Parameters: ATD-GAIN=7,DITHER-LINE-SPACING=0.3217,DITHER-LINE-STEPS=2,DITHER-TYPE=LINE
Number_of_Iterations: 1
   Time_Per_Exposure: 970 S
Special_Requirements: 
            Comments: 

      Visit_Number: 09
Visit_Requirements: 
  On_Hold_Comments: 
    Visit_Comments: Same pair of Guide Stars between this visit and 10, if possible. Seek off-nominal roll angles to facilitate this.

     Exposure_Number: 18
         Target_Name: V826-TAU
              Config: WFPC2
              Opmode: IMAGE
            Aperture: PC1-FIX
          Sp_Element: F1042M
          Wavelength: 
 Optional_Parameters: ATD-GAIN=7,DITHER-LINE-SPACING=0.3217,DITHER-LINE-STEPS=2,DITHER-TYPE=LINE
Number_of_Iterations: 1
   Time_Per_Exposure: 970 S
Special_Requirements: 
            Comments: 

      Visit_Number: 10
Visit_Requirements: 
                ORIENT 25D TO 25D FROM 09
  On_Hold_Comments: 
    Visit_Comments: ORIENT -25D TO -25D FROM 09 also acceptable. Same pair of Guide Stars between this visit and 09, if possible. Seek off-nominal roll angles to facilitate this.

     Exposure_Number: 19
         Target_Name: V826-TAU
              Config: WFPC2
              Opmode: IMAGE
            Aperture: PC1-FIX
          Sp_Element: F1042M
          Wavelength: 
 Optional_Parameters: ATD-GAIN=7,DITHER-LINE-SPACING=0.3217,DITHER-LINE-STEPS=2,DITHER-TYPE=LINE
Number_of_Iterations: 1
   Time_Per_Exposure: 970 S
Special_Requirements: 
            Comments: 

      Visit_Number: 11
Visit_Requirements: 
  On_Hold_Comments: 
    Visit_Comments: Same pair of Guide Stars between this visit and 12, if possible. Seek off-nominal roll angles to facilitate this.

     Exposure_Number: 20
         Target_Name: STAR0437+2413
              Config: WFPC2
              Opmode: IMAGE
            Aperture: PC1-FIX
          Sp_Element: F1042M
          Wavelength: 
 Optional_Parameters: ATD-GAIN=7,DITHER-LINE-SPACING=0.3217,DITHER-LINE-STEPS=2,DITHER-TYPE=LINE
Number_of_Iterations: 1
   Time_Per_Exposure: 970 S
Special_Requirements: 
            Comments: 

      Visit_Number: 12
Visit_Requirements: 
                ORIENT 25D TO 25D FROM 11
  On_Hold_Comments: 
    Visit_Comments: ORIENT -25D TO -25D FROM 11 also acceptable. Same pair of Guide Stars between this visit and 11, if possible. Seek off-nominal roll angles to facilitate this.

     Exposure_Number: 21
         Target_Name: STAR0437+2413
              Config: WFPC2
              Opmode: IMAGE
            Aperture: PC1-FIX
          Sp_Element: F1042M
          Wavelength: 
 Optional_Parameters: ATD-GAIN=7,DITHER-LINE-SPACING=0.3217,DITHER-LINE-STEPS=2,DITHER-TYPE=LINE
Number_of_Iterations: 1
   Time_Per_Exposure: 970 S
Special_Requirements: 
            Comments: 

      Visit_Number: 13
Visit_Requirements: 
  On_Hold_Comments: 
    Visit_Comments: Same pair of Guide Stars between this visit and 14, if possible. Seek off-nominal roll angles to facilitate this.

     Exposure_Number: 22
         Target_Name: HBC419
              Config: WFPC2
              Opmode: IMAGE
            Aperture: PC1-FIX
          Sp_Element: F1042M
          Wavelength: 
 Optional_Parameters: ATD-GAIN=7,DITHER-LINE-SPACING=0.3217,DITHER-LINE-STEPS=2,DITHER-TYPE=LINE
Number_of_Iterations: 1
   Time_Per_Exposure: 970 S
Special_Requirements: 
            Comments: 

      Visit_Number: 14
Visit_Requirements: 
                ORIENT 25D TO 25D FROM 13
  On_Hold_Comments: 
    Visit_Comments: ORIENT -25D TO -25D FROM 13 also acceptable. Same pair of Guide Stars between this visit and 13, if possible. Seek off-nominal roll angles to facilitate this.

     Exposure_Number: 23
         Target_Name: HBC419
              Config: WFPC2
              Opmode: IMAGE
            Aperture: PC1-FIX
          Sp_Element: F1042M
          Wavelength: 
 Optional_Parameters: ATD-GAIN=7,DITHER-LINE-SPACING=0.3217,DITHER-LINE-STEPS=2,DITHER-TYPE=LINE
Number_of_Iterations: 1
   Time_Per_Exposure: 970 S
Special_Requirements: 
            Comments: 

      Visit_Number: 15
Visit_Requirements: 
  On_Hold_Comments: 
    Visit_Comments: Same pair of Guide Stars between this visit and 16, if possible. Seek off-nominal roll angles to facilitate this.

     Exposure_Number: 24
         Target_Name: HBC426
              Config: WFPC2
              Opmode: IMAGE
            Aperture: PC1-FIX
          Sp_Element: F1042M
          Wavelength: 
 Optional_Parameters: ATD-GAIN=7,DITHER-LINE-SPACING=0.3217,DITHER-LINE-STEPS=2,DITHER-TYPE=LINE
Number_of_Iterations: 1
   Time_Per_Exposure: 970 S
Special_Requirements: 
            Comments: 

      Visit_Number: 16
Visit_Requirements: 
                ORIENT 25D TO 25D FROM 15
  On_Hold_Comments: 
    Visit_Comments: ORIENT -25D TO -25D FROM 15 also acceptable. Same pair of Guide Stars between this visit and 15, if possible. Seek off-nominal roll angles to facilitate this.

     Exposure_Number: 25
         Target_Name: HBC426
              Config: WFPC2
              Opmode: IMAGE
            Aperture: PC1-FIX
          Sp_Element: F1042M
          Wavelength: 
 Optional_Parameters: ATD-GAIN=7,DITHER-LINE-SPACING=0.3217,DITHER-LINE-STEPS=2,DITHER-TYPE=LINE
Number_of_Iterations: 1
   Time_Per_Exposure: 970 S
Special_Requirements: 
            Comments: 

      Visit_Number: 17
Visit_Requirements: 
  On_Hold_Comments: 
    Visit_Comments: Same pair of Guide Stars between this visit and 18, if possible. Seek off-nominal roll angles to facilitate this.

     Exposure_Number: 26
         Target_Name: SU-AUR
              Config: WFPC2
              Opmode: IMAGE
            Aperture: PC1-FIX
          Sp_Element: F1042M
          Wavelength: 
 Optional_Parameters: ATD-GAIN=7,DITHER-LINE-SPACING=0.3217,DITHER-LINE-STEPS=2,DITHER-TYPE=LINE
Number_of_Iterations: 1
   Time_Per_Exposure: 970 S
Special_Requirements: 
            Comments: 

      Visit_Number: 18
Visit_Requirements: 
                ORIENT 25D TO 25D FROM 17
  On_Hold_Comments: 
    Visit_Comments: ORIENT -25D TO -25D FROM 17 also acceptable. Same pair of Guide Stars between this visit and 17, if possible. Seek off-nominal roll angles to facilitate this.

     Exposure_Number: 27
         Target_Name: SU-AUR
              Config: WFPC2
              Opmode: IMAGE
            Aperture: PC1-FIX
          Sp_Element: F1042M
          Wavelength: 
 Optional_Parameters: ATD-GAIN=7,DITHER-LINE-SPACING=0.3217,DITHER-LINE-STEPS=2,DITHER-TYPE=LINE
Number_of_Iterations: 1
   Time_Per_Exposure: 970 S
Special_Requirements: 
            Comments: 

      Visit_Number: 19
Visit_Requirements: 
  On_Hold_Comments: 
    Visit_Comments: Same pair of Guide Stars between this visit and 20, if possible. Seek off-nominal roll angles to facilitate this.

     Exposure_Number: 28
         Target_Name: HBC427
              Config: WFPC2
              Opmode: IMAGE
            Aperture: PC1-FIX
          Sp_Element: F1042M
          Wavelength: 
 Optional_Parameters: ATD-GAIN=7,DITHER-LINE-SPACING=0.3217,DITHER-LINE-STEPS=2,DITHER-TYPE=LINE
Number_of_Iterations: 1
   Time_Per_Exposure: 970 S
Special_Requirements: 
            Comments: 

      Visit_Number: 20
Visit_Requirements: 
                ORIENT 25D TO 25D FROM 19
  On_Hold_Comments: 
    Visit_Comments: ORIENT -25D TO -25D FROM 19 also acceptable. Same pair of Guide Stars between this visit and 19, if possible. Seek off-nominal roll angles to facilitate this.

     Exposure_Number: 29
         Target_Name: HBC427
              Config: WFPC2
              Opmode: IMAGE
            Aperture: PC1-FIX
          Sp_Element: F1042M
          Wavelength: 
 Optional_Parameters: ATD-GAIN=7,DITHER-LINE-SPACING=0.3217,DITHER-LINE-STEPS=2,DITHER-TYPE=LINE
Number_of_Iterations: 1
   Time_Per_Exposure: 970 S
Special_Requirements: 
            Comments: 

      Visit_Number: 21
Visit_Requirements: 
  On_Hold_Comments: 
    Visit_Comments: Same pair of Guide Stars between this visit and 22, if possible. Seek off-nominal roll angles to facilitate this.

     Exposure_Number: 30
         Target_Name: V836-TAU
              Config: WFPC2
              Opmode: IMAGE
            Aperture: PC1-FIX
          Sp_Element: F1042M
          Wavelength: 
 Optional_Parameters: ATD-GAIN=7,DITHER-LINE-SPACING=0.3217,DITHER-LINE-STEPS=2,DITHER-TYPE=LINE
Number_of_Iterations: 1
   Time_Per_Exposure: 970 S
Special_Requirements: 
            Comments: 

      Visit_Number: 22
Visit_Requirements: 
                ORIENT 25D TO 25D FROM 21
  On_Hold_Comments: 
    Visit_Comments: ORIENT -25D TO -25D FROM 21 also acceptable. Same pair of Guide Stars between this visit and 21, if possible. Seek off-nominal roll angles to facilitate this.

     Exposure_Number: 31
         Target_Name: V836-TAU
              Config: WFPC2
              Opmode: IMAGE
            Aperture: PC1-FIX
          Sp_Element: F1042M
          Wavelength: 
 Optional_Parameters: ATD-GAIN=7,DITHER-LINE-SPACING=0.3217,DITHER-LINE-STEPS=2,DITHER-TYPE=LINE
Number_of_Iterations: 1
   Time_Per_Exposure: 970 S
Special_Requirements: 
            Comments: 

      Visit_Number: 23
Visit_Requirements: 
  On_Hold_Comments: 
    Visit_Comments: Same pair of Guide Stars between this visit and 24, if possible. Seek off-nominal roll angles to facilitate this.

     Exposure_Number: 32
         Target_Name: STAR1601-2241
              Config: WFPC2
              Opmode: IMAGE
            Aperture: PC1-FIX
          Sp_Element: F1042M
          Wavelength: 
 Optional_Parameters: ATD-GAIN=7,DITHER-LINE-SPACING=0.3217,DITHER-LINE-STEPS=2,DITHER-TYPE=LINE
Number_of_Iterations: 1
   Time_Per_Exposure: 970 S
Special_Requirements: 
            Comments: 

      Visit_Number: 24
Visit_Requirements: 
                ORIENT 25D TO 25D FROM 23
  On_Hold_Comments: 
    Visit_Comments: ORIENT -25D TO -25D FROM 23 also acceptable. Same pair of Guide Stars between this visit and 23, if possible. Seek off-nominal roll angles to facilitate this.

     Exposure_Number: 33
         Target_Name: STAR1601-2241
              Config: WFPC2
              Opmode: IMAGE
            Aperture: PC1-FIX
          Sp_Element: F1042M
          Wavelength: 
 Optional_Parameters: ATD-GAIN=7,DITHER-LINE-SPACING=0.3217,DITHER-LINE-STEPS=2,DITHER-TYPE=LINE
Number_of_Iterations: 1
   Time_Per_Exposure: 970 S
Special_Requirements: 
            Comments: 

      Visit_Number: 25
Visit_Requirements: 
  On_Hold_Comments: 
    Visit_Comments: Same pair of Guide Stars between this visit and 26, if possible. Seek off-nominal roll angles to facilitate this.

     Exposure_Number: 34
         Target_Name: HBC630
              Config: WFPC2
              Opmode: IMAGE
            Aperture: PC1-FIX
          Sp_Element: F1042M
          Wavelength: 
 Optional_Parameters: ATD-GAIN=7,DITHER-LINE-SPACING=0.3217,DITHER-LINE-STEPS=2,DITHER-TYPE=LINE
Number_of_Iterations: 1
   Time_Per_Exposure: 970 S
Special_Requirements: 
            Comments: 

      Visit_Number: 26
Visit_Requirements: 
                ORIENT 25D TO 25D FROM 25
  On_Hold_Comments: 
    Visit_Comments: ORIENT -25D TO -25D FROM 25 also acceptable. Same pair of Guide Stars between this visit and 25, if possible. Seek off-nominal roll angles to facilitate this.

     Exposure_Number: 35
         Target_Name: HBC630
              Config: WFPC2
              Opmode: IMAGE
            Aperture: PC1-FIX
          Sp_Element: F1042M
          Wavelength: 
 Optional_Parameters: ATD-GAIN=7,DITHER-LINE-SPACING=0.3217,DITHER-LINE-STEPS=2,DITHER-TYPE=LINE
Number_of_Iterations: 1
   Time_Per_Exposure: 970 S
Special_Requirements: 
            Comments: 

      Visit_Number: 27
Visit_Requirements: 
  On_Hold_Comments: 
    Visit_Comments: Same pair of Guide Stars between this visit and 28, if possible. Seek off-nominal roll angles to facilitate this.

     Exposure_Number: 36
         Target_Name: HBC633
              Config: WFPC2
              Opmode: IMAGE
            Aperture: PC1-FIX
          Sp_Element: F1042M
          Wavelength: 
 Optional_Parameters: ATD-GAIN=7,DITHER-LINE-SPACING=0.3217,DITHER-LINE-STEPS=2,DITHER-TYPE=LINE
Number_of_Iterations: 1
   Time_Per_Exposure: 970 S
Special_Requirements: 
            Comments: 

      Visit_Number: 28
Visit_Requirements: 
                ORIENT 25D TO 25D FROM 27
  On_Hold_Comments: 
    Visit_Comments: ORIENT -25D TO -25D FROM 27 also acceptable. Same pair of Guide Stars between this visit and 27, if possible. Seek off-nominal roll angles to facilitate this.

     Exposure_Number: 37
         Target_Name: HBC633
              Config: WFPC2
              Opmode: IMAGE
            Aperture: PC1-FIX
          Sp_Element: F1042M
          Wavelength: 
 Optional_Parameters: ATD-GAIN=7,DITHER-LINE-SPACING=0.3217,DITHER-LINE-STEPS=2,DITHER-TYPE=LINE
Number_of_Iterations: 1
   Time_Per_Exposure: 970 S
Special_Requirements: 
            Comments: 

      Visit_Number: 29
Visit_Requirements: 
  On_Hold_Comments: 
    Visit_Comments: Same pair of Guide Stars between this visit and 30, if possible. Seek off-nominal roll angles to facilitate this.

     Exposure_Number: 38
         Target_Name: HBC636
              Config: WFPC2
              Opmode: IMAGE
            Aperture: PC1-FIX
          Sp_Element: F1042M
          Wavelength: 
 Optional_Parameters: ATD-GAIN=7,DITHER-LINE-SPACING=0.3217,DITHER-LINE-STEPS=2,DITHER-TYPE=LINE
Number_of_Iterations: 1
   Time_Per_Exposure: 970 S
Special_Requirements: 
            Comments: 

      Visit_Number: 30
Visit_Requirements: 
                ORIENT 25D TO 25D FROM 29
  On_Hold_Comments: 
    Visit_Comments: ORIENT -25D TO -25D FROM 29 also acceptable. Same pair of Guide Stars between this visit and 29, if possible. Seek off-nominal roll angles to facilitate this.

     Exposure_Number: 39
         Target_Name: HBC636
              Config: WFPC2
              Opmode: IMAGE
            Aperture: PC1-FIX
          Sp_Element: F1042M
          Wavelength: 
 Optional_Parameters: ATD-GAIN=7,DITHER-LINE-SPACING=0.3217,DITHER-LINE-STEPS=2,DITHER-TYPE=LINE
Number_of_Iterations: 1
   Time_Per_Exposure: 970 S
Special_Requirements: 
            Comments: 

      Visit_Number: 31
Visit_Requirements: 
  On_Hold_Comments: 
    Visit_Comments: Same pair of Guide Stars between this visit and 32, if possible. Seek off-nominal roll angles to facilitate this.

     Exposure_Number: 40
         Target_Name: HBC637
              Config: WFPC2
              Opmode: IMAGE
            Aperture: PC1-FIX
          Sp_Element: F1042M
          Wavelength: 
 Optional_Parameters: ATD-GAIN=7,DITHER-LINE-SPACING=0.3217,DITHER-LINE-STEPS=2,DITHER-TYPE=LINE
Number_of_Iterations: 1
   Time_Per_Exposure: 970 S
Special_Requirements: 
            Comments: 

      Visit_Number: 32
Visit_Requirements: 
                ORIENT 25D TO 25D FROM 31
  On_Hold_Comments: 
    Visit_Comments: ORIENT -25D TO -25D FROM 31 also acceptable. Same pair of Guide Stars between this visit and 31, if possible. Seek off-nominal roll angles to facilitate this.

     Exposure_Number: 41
         Target_Name: HBC637
              Config: WFPC2
              Opmode: IMAGE
            Aperture: PC1-FIX
          Sp_Element: F1042M
          Wavelength: 
 Optional_Parameters: ATD-GAIN=7,DITHER-LINE-SPACING=0.3217,DITHER-LINE-STEPS=2,DITHER-TYPE=LINE
Number_of_Iterations: 1
   Time_Per_Exposure: 970 S
Special_Requirements: 
            Comments: 

Data_Distribution         ! Defaults indicated; change if desired

         Medium: 8MM
        Ship_To: PI_Address
Recipient_Email: 

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