! Hubble Space Telescope Cycle 5 (1995) Phase II Proposal Template
! $Id: 5786,v 1.1 1994/12/14 18:59:26 pepsa Exp $
!
!   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: n/a
!             Phone: n/a             , E-mail: n/a
!
! This partially completed template was generated from a Phase I proposal.
! Name of Phase I Proposal: blades-608.prop
! Date generated: Wed Dec 14 13:59:19 EST 1994
!

Proposal_Information                           ! Section 4
              Title:  A Three Dimensional Map of the Galactic
                      Halo
  Proposal_Category:  AR
Scientific_Category:  Interstellar Medium
             Cycle:    5

Investigators
     PI_name:         J. C. Blades
     PI_Institution:  Space Telescope Science Institute

          CoI_Name:   Katherine Roth
   CoI_Institution:   Space Telescope Science Institute
           Contact:             ! Y or N (designate at most one contact)

          CoI_Name:   D.G. York
   CoI_Institution:   University of Chicago
           Contact:             ! Y or N (designate at most one contact)

          CoI_Name:   D.V. Bowen
   CoI_Institution:   Space Telescope Science Institute
           Contact:             ! Y or N (designate at most one contact)


Abstract:                                ! Free format text (please update)
    Our purpose is to develop a map of the distribution of
    interstellar species in the halo of the Galaxy. Our intent is
    to establish the scale height of various atomic species,
    including neutrals (C I, O I, and Mg I), singly ionized
    species, (Zn II, Cr II, and the like) and highly ionized
    species (C IV, Si IV, and N V), and to search for evidence of
    High Velocity Clouds and manifestations of the postulated
    galactic fountain and other large scale phenomena, e.g.,
    supernovae shells. We shall use galactic and extragalactic
    sources that are shining through the halo at a variety of z-
    distances and galactic locations, with sources taken from
    principally the GHRS archive, supplemented where necessary
    with FOS data.  This archive proposal was funded last year.
    Since then, we have inspected the  entire GHRS archive and
    selected 120 targets so far, many of which were not originally
    obtained for ISM studies.  We have compared equivalent widths
    for interstellar lines common to both  Copernicus and HST to
    establish the veracity of our measurements, and, as a
    pathfinder, we have begun a study of the Zn II, Mg I and Cr II
    halo scale-heights. In the current year, we propose to
    complete our work with the GHRS and FOS archives and establish
    scale height measurements for all species, as well as to
    examine the C IV and Si IV distributions and re-examine
    whether their column density ratio is constant. We shall
    produce a preliminary version of the three-dimensional
    distribution of gas in the halo.

Questions                       ! Free format text (please update)

     Observing_Description:

   Real_Time_Justification:



Calibration_Justification:              ! Move appropriate text from Real_Time_Justification

      Additional_Comments:


Fixed_Targets                           ! Section 5.1
  Target_Number:
    Target_Name:
Alternate_Names:
    Description:
       Position:                        ! Most common specification format is
                                        ! RA=0H 0M 0.00S +/- 0S,
                                        ! DEC=0D 0' 0.0" +/- 0",
                                        ! PLATE-ID=0000
        Equinox:
        RV_or_Z:
          RA_PM:                        ! Units are seconds of time per year
         Dec_PM:                        ! Units are seconds of arc per year
          Epoch:
Annual_Parallax:
           Flux:                        ! Include at least V and B-V
       Comments:


Solar_System_Targets                    ! Section 5.2
  Target_Number:
    Target_Name:
    Description:
        Level_1:                        ! Satellite of Sun
        Level_2:                        ! Satellite of Level_1
        Level_3:                        ! Satellite of Level_2
         Window:
           Flux:                        ! Include at least V and B-V
       Comments:


Generic_Targets                         ! Section 5.3
  Target_Number:
    Target_Name:
    Description:
       Criteria:
           Flux:
       Comments:


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:
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:                   ! Section 6.5
         Target_Name:
              Config:
              Opmode:
            Aperture:
          Sp_Element:
          Wavelength:
 Optional_Parameters:
Number_of_Iterations:
   Time_Per_Exposure:
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>
                                        ! PI Address from Phase I is:
                                        !
                                                 !  3700 San Martin Drive,
                                                 !   Baltimore, MD 21218
                                        !
                                        !
       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>

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