! Proposal 6284, submission 1
! PI: James Westphal
! Received Mon Apr 10 12:21:34 EDT 1995
! From: spe@hellas.gps.caltech.edu
Proposal_Information                    ! Section 4
              Title: Stellar Populations in the Local Group

  Proposal_Category: GTO/WFC
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:  James Westphal   
     PI_Institution:  California Institute of Technology

           CoI_Name: Deidre Hunter      ! Repeat as often as necessary
    CoI_Institution: Lowell Observatory
            Contact: Y                  ! Y or N (designate at most one contact)



Abstract:                               ! Free format text (clear and concise)
In Cycle 4 we obtained WFPC2 images of a portion of the OB association
NGC 206 in M31 for the purpose of determining the Initial Mass Function
of the intermediate mass stars. In this program we are obtaining a
background field in order to be able to subtract, statistically,
stars in the NGC 206 field that are not members of the association.
This is necessary in order to determine a true IMF of the association.


Questions                               ! Free format text (clear and concise)


    Observing_Description:
The exposures of the background field
are intended to duplicate what was done for the NGC 206
field itself. This involves F336W, F555W, and F814W exposures. 
Each is split for purposes of removing cosmic-rays. Since the original
exposures occupied one and a fraction orbits, we have scaled back the
F336W exposure in order to fit everything into one orbit.

     
  Real_Time_Justification: Not applicable.

Calibration_Justification: Not applicable.

      Additional_Comments: Not applicable.


Fixed_Targets                           ! Section 5.1
  Target_Number: 1
    Target_Name: NGC206-BACKGROUND
Alternate_Names:
    Description: EXT-CLUSTER,OB ASSOCIATION,DISK
       Position:                        ! Most common specification format is
                 RA=0H 38M 07.9S +/- 0.1S,
                 DEC=40D 24' 51.0" +/- 5"
                                        ! PLATE-ID=0000       
        Equinox: 1950              
        RV_or_Z: V=-300
          RA_PM:                        ! Units are seconds of time per year
         Dec_PM:                        ! Units are seconds of arc per year
          Epoch:
Annual_Parallax:               
           Flux: V=18 +/- 0.5
       Comments: This V refers to the top end. The bottom is 25.5 and the starsare red III.

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: NGC206-BACKGROUND
              Config: WFPC2
              Opmode: IMAGE
            Aperture: WFALL-FIX
          Sp_Element: F555W
          Wavelength: 
 Optional_Parameters: ATD-GAIN=7,CR-SPLIT=NO
Number_of_Iterations: 2
   Time_Per_Exposure: 200S
Special_Requirements:                   ! Section 7.2

     Exposure_Number: 2                 ! Section 6.5
         Target_Name: NGC206-BACKGROUND
              Config: WFPC2
              Opmode: IMAGE
            Aperture: WFALL-FIX
          Sp_Element: F814W
          Wavelength: 
 Optional_Parameters: ATD-GAIN=7,CR-SPLIT=NO
Number_of_Iterations: 2
   Time_Per_Exposure: 200S
Special_Requirements:                   ! Section 7.2

     Exposure_Number: 3                  ! Section 6.5
         Target_Name: NGC206-BACKGROUND
              Config: WFPC2
              Opmode: IMAGE
            Aperture: WFALL-FIX
          Sp_Element: F336W
          Wavelength: 
 Optional_Parameters: ATD-GAIN=7,CR-SPLIT=NO
Number_of_Iterations: 1 
   Time_Per_Exposure: 300S
Special_Requirements:                   ! Section 7.2

     Exposure_Number: 4                  ! Section 6.5
         Target_Name: NGC206-BACKGROUND
              Config: WFPC2
              Opmode: IMAGE
            Aperture: WFALL-FIX
          Sp_Element: F336W
          Wavelength: 
 Optional_Parameters: ATD-GAIN=7,CR-SPLIT=NO
Number_of_Iterations: 1 
   Time_Per_Exposure: 400S
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]>
          SEQ 1-3 NON-INT

            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:                        ! Needed if Ship_To: is not PI_Address
                                        ! <free-text>

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