!   5706_v4.prop
!   NOTE: GF text has now been edited and updated by MAB. 
!   EDITED! - MAB 3/2/95
!
!   $Id: 5706,v 9.1 1995/03/03 19:31:15 pepsa Exp $
coverpage:
  title_1:         MORPHOLOGY OF DISTANT GALAXIES - CYCLE 4 CARRY-OVER
    sci_cat:       GALAXIES & CLUSTERS
    sci_subcat:    FAINT GALAXIES
    proposal_for:  AUG/OS
    cont_id:       3685
    pi_title:      PROF.
    pi_fname:      IVAN
    pi_mi:         R.
    pi_lname:      KING
    pi_inst:       UNIVERSITY OF CALIFORNIA, BERKELEY
    pi_country:    USA
    pi_phone:      (510)642-2206
    keywords_1:    DISTANT GALAXY
    hours_pri:     3.65
    hours_par:     0
    num_pri:       3
    num_par:       0
    wf_pc:         Y
    pi_position:   PROF. OF ASTRONOMY
abstract:
    line_1: This is a Cycle 4 carryover from GTO 3685 to study the morphology of
    line_2: distant galaxies, a field that has lagged far behind what has been
    line_3: learned from spectroscopic work.  The targeted galaxies all have been
    line_4: extensively observed from the ground.  Nearly all are in the redshift
    line_5: range 0.24-0.65. Ground-based data include broad-baseline 4-color
    line_6: photometry and, in nearly all cases, redshifts.  The target fields
    line_7: each have numerous galaxies that have been richly observed from the
    line_8: ground.  Each field will be observed with the WFPC-2, with orientation
    line_9: optimized to include as many galaxies as possible while avoiding
    line_10:bright stars.  These observations will continue our ongoing
    line_11:investigation into the morphology of the rich sample of
    line_12:medium-redshift galaxies in the Koo-Kron redshift surveys.
general_form_proposers:
  lname:           KING
    fname:         IVAN
    title:         PROF.
    mi:            R.
    inst:          UNIV. OF CALIFORNIA
    country:       U.S.A.
  lname:           MACKAY
    fname:         CRAIG
    title:         DR.
    mi:            D.
    inst:          UNIVERSITY OF CAMBRIDGE
    country:       U.K.
    esa:           Y
  lname:           CRANE
    fname:         PHILIPPE
    title:         DR.
    inst:          EUROPEAN SOUTHERN OBSERVATORY
    country:       GERMANY
  lname:           KOO
    fname:         DAVID
    title:         DR.
    mi:            C.
    inst:          LICK OBSERVATORY, UNIV OF CALIFORNIA
    country:       U.S.A.
  lname:           KRON
    fname:         RICHARD
    title:         DR.
    mi:            G.
    inst:          UNIVERSITY OF CHICAGO
    country:       U.S.A.
general_form_text:
 QUESTION:  3
  SECTION:  1
LINE_1: Due to a decrease in the total exposure time available, we have
LINE_2: revised our observing plan by dropping one of the four original
LINE_3: targets and by changing the pointing slightly to accomodate more
LINE_4: objects within the WFPC-2 field-of-view.  Because we do not point
LINE_5: directly at a particular object, we have changed our target names to
LINE_6: specify the field of observation (using J2000).  Details of revised plan:
LINE_7: ---(1) FIELD-001719+154914, WFPC-2 + F814W; 2x1500S; ORIENT=240D +/- 20D
LINE_8: This is our highest priority field. Coordinates and orientation are
LINE_9: specified to put 2 important galaxies in the PC.  The WFPC field will
LINE_10:contain no bright stars and 5 objects with spectroscopic redshifts
LINE_11:from the Koo-Kron database.
LINE_12:---(2) FIELD-001702+154814, WFPC-2 + F814W; 2x1100S; ORIENT=243D +/- 5D
LINE_13:This field is our third priority. Coordinates and orientation are
LINE_14:set so center of PC is 30 arcsec south, 10 arcsec east of galaxy 6715. 
LINE_15:The field will contain 1 acceptably bright star to the north and 7 
LINE_16:objects with measured redshifts from the Koo-Kron database.
LINE_17:---(3) FIELD-001723+155716, WFPC-2 + F814W; 2x1100S; ORIENT=234D +/- 10D
LINE_18:This field is our second priority.  Coordinates and orientation will
LINE_19:put center of PC on galaxy 11925. A minimum of 4
LINE_20:objects with known redshifts lie within the WFPC field. For
LINE_21:ORIENT=234, one moderately bright star lies at the northern corner,
LINE_22:and two additional bright stars are kept out of the field
LINE_23:

  question:        3
    section:       2
LINE_1:We have decided to adopt a strategy of doing a POS TARG offset of 0.5
LINE_2:arcsec in X and Y between the two exposures of a given target since 
LINE_3:this will give us a nearly integral-pixel offset of 11 PC pixels and
LINE_4:5 WFC pixels. This will enable us to recover data that would otherwise
LINE_5:have been lost due to hot pixels, etc. The accuracy of pointing is
LINE_6:still required to be good enough that we can accurately shift and align 
LINE_7:the images for good and effective cosmic ray removal, however. 
!
!OLD TEXT BELOW FOR GF Q3, SECTION 2 - IT HAS ALL BEEN COMMENTED OUT (IGNORED)
!LINE_1:Because we are interested in the objects on all 4 WFPC2 chips, and being
!LINE_2:mindful that small POS TARG offsets of an integral number of pixels
!LINE_3:cannot be made for both PC and WFC chips at the same time, we have
!LINE_4:decided to keep all images of a given target field at exactly the same 
!LINE_5:position and orientation. We will thus still be able to eliminate the
!LINE_6:cosmic rays effectively, and will live with the nuisance of hot pixels,
!LINE_7:using the most relevant DARK frames to overcome this as best we can.

  question:        4
    section:       1
    line_1: This entire program is dependent on the superior resolving power of
    line_2: HST, whose applicability has been demonstrated by SAO Program 3121.
    line_3: All objects have been observed exhaustively from the ground.
  question:        5
    section:       1
    line_1: An optimal range of orientation angles (ORIENT) has been specified for
    line_2: all exposures in order to maximize the number of galaxies observed and
    line_3: to avoid nearby stars and their diffraction spikes.  This requirement
    line_4: can be relaxed by STScI if needed (to acquire a guide star, for
    line_5: example).
    line_6: CR-SPLIT=NO has been used since each exposure is specified 
    line_7: individually due to the POS TARG dithering.
! OLD TEXT IN LINES 7-9 BELOW HAS BEEN COMMENTED OUT AND WILL BE IGNORED
!    line_7: CR-SPLIT=0.5 and CR-TOLERANCE=0.0 are also specified for each exposure
!    line_8: in order to obtain two equal-length exposures and permit better
!    line_9: cosmic-ray removal.
  question:        6
    section:       1
    line_1: It is assumed that PSF's will be available without the need to add
    line_2: observations to this program to secure them.
  question:        9
    section:       1
    line_1: Previous HST observing time:
    line_3: SAO-3121, MORPHOLOGY OF FAINT GALAXIES - PART II
    line_4: GTO-1277, IMAGING OF M31-GROUP GALAXIES
    line_5: GTO-1278, SPECTROSCOPY OF THE CENTERS OF M31, M32, AND NGC 205
    line_6: GTO-1279, STRUCTURE OF GLOBULAR CLUSTERS
    line_7: GTO-1280, COLLAPSED CORES OF GLOBULAR CLUSTERS
    line_8: GTO-1281, THE FAINT POPULATION IN BAADE'S WINDOW
    line_9: GTO-1282, IMAGING OF HIGH-REDSHIFT FIELD GALAXIES AND CLUSTERS
    line_10:GTO-3217, (continuation of 1280)
    line_11:GTO-3218, (continuation of 1279)
    line_12:GTO-3219, (continuation of 1277)
    line_13:GTO-3325, (continuation of 1279, 3218)
    line_15:The only one of the above that is closely related to this proposal is 3121.
    line_16:The main part of the project is finished and published.  Some additional study
    line_17:will be done by Koo and Kron, however.
    line_19:Koo is a Co-I in the "Medium Deep Survey" Key project.  That is a broad
    line_20:exploratory survey, however, whereas the present proposal is specifically aimed
    line_21:at galaxies for which there is already extensive ground-based information.
    line_23:Crane has GTO programs, none of which impinge on the present proposal.
  question:        9
    section:       2
    line_1: Main results from previous related programs:
    line_3: 3121 produced a report that I am told was quite useful to the Cycle
    line_4: 1 Re-TAC, and also the publication below.
    line_6: Otherwise all I have gotten up to now is a pair of exposures on the
    line_7: center of Omega Centauri, which are in the early stages of
    line_8: reduction, along with exposures of the center of M32 and of the
    line_9: collapsed-core globular cluster NGC7099.
    line_11:In Cycle 1 I have put all of 1281 and all of the 1279 exposures on
    line_12:NGC6624.
  question:        9
    section:       3
    line_1: Publications resulting from the above:
    line_3: "The Current Ability of HST to Reveal Morphological Structure in
    line_4: Medium-Redshift Galaxies", King, I.R., et al. (8 other authors),
    line_5: Astron. J., 102, 1553, 1991.
  question:        10
    section:       1
    line_1: Hardware/software as above.  Postdoc + RA's.  GTO funding (from
    line_2: NASA).
general_form_address:
  lname:           KING
    fname:         IVAN
    mi:            R.
    title:         PROF.
    category:      PI
    inst:          UNIVERSITY OF CALIFORNIA, BERKELEY
    addr_1:        ASTRONOMY DEPARTMENT
    addr_2:        UNIVERSITY OF CALIFORNIA
    city:          BERKELEY
    state:         CA
    zip:           94720
    country:       U.S.A.
    phone:         (510)642-2206
    telex:         (910)366-7114
    from_date:     15-MAR-92
    to_date:       31-DEC-99
!
fixed_targets:
!
    targnum:       1
    name_1:        FIELD-001719+154914
    descr_1:       I,603
    pos_1:         RA=00H 14M 44.1S+/-.1S,
    pos_2:         DEC=+15D 32' 34"+/-1"
    equinox:       1950
!
    targnum:       2
    name_1:        FIELD-001702+154814
    descr_1:       I,603
    pos_1:         RA=00H 14M 21.55S+/-.1S,
    pos_2:         DEC=+15D 31' 29.0"+/-1"
    equinox:       1950
!
    targnum:       3
    name_1:        FIELD-001723+155716
    descr_1:       I,603
    pos_1:         RA=00H 14M 43.8S+/-.1S,
    pos_2:         DEC=+15D 40' 27.4"+/-1"
    equinox:       1950
!
exposure_logsheet:
!
    linenum:       1.000
    targname:      FIELD-001719+154914
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1
    sp_element:    F814W
    num_exp:       1
    time_per_exp:  1500S
    priority:      1
    param_1:       CR-SPLIT=NO
    req_1:         ORIENT 240.0D +/- 20.0D;
    req_2:         CYCLE 4 /1-3.5;
!
    linenum:       1.500
    targname:      FIELD-001719+154914
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1
    sp_element:    F814W
    num_exp:       1
    time_per_exp:  1500S
    priority:      1
    param_1:       CR-SPLIT=NO
    req_1:         SAME ORIENT FOR 1.5 AS 1;
    req_2:         POS TARG 0.5,0.5;
    req_3:         GROUP 1-1.5 NO GAP;
    comment_1:     POS TARG DITHERS BY ~11 PC
    comment_2:     PIXELS & 5 WFC PIXELS.   
!
    linenum:       2.000
    targname:      FIELD-001702+154814
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1
    sp_element:    F814W
    num_exp:       1
    time_per_exp:  1100S
    priority:      1
    req_1:         ORIENT 243.0D +/- 5.0D;
    param_1:       CR-SPLIT=NO
    comment_1:     THIS ORIENT STILL ALLOWS
    comment_2:     COVERAGE OF SAME GALAXIES
    comment_3:     AS ORIGINAL ORIENT BY USING
    comment_4:     DIFFERENT TARGET POSITION. 
!
    linenum:       2.500
    targname:      FIELD-001702+154814
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1
    sp_element:    F814W
    num_exp:       1
    time_per_exp:  1100S
    priority:      1
    param_1:       CR-SPLIT=NO
    req_1:         SAME ORIENT FOR 2.5 AS 2;
    req_2:         POS TARG 0.5,0.5;
    req_3:         GROUP 2-2.5 NO GAP;
    comment_1:     POS TARG DITHERS BY ~11 PC
    comment_2:     PIXELS & 5 WFC PIXELS.
!
    linenum:       3.000
    targname:      FIELD-001723+155716
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1
    sp_element:    F814W
    num_exp:       1
    time_per_exp:  1100S
    priority:      1
    param_1:       CR-SPLIT=NO
    req_1:         ORIENT 234.0D +/- 10.0D;
    comment_1:     THIS ORIENT STILL ALLOWS
    comment_2:     COVERAGE OF SAME GALAXIES
    comment_3:     AS ORIGINAL ORIENT BY USING
    comment_4:     DIFFERENT TARGET POSITION. 
!
    linenum:       3.500
    targname:      FIELD-001723+155716
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1
    sp_element:    F814W
    num_exp:       1
    time_per_exp:  1100S
    priority:      1
    param_1:       CR-SPLIT=NO
    req_1:         SAME ORIENT FOR 3.5 AS 3;
    req_2:         POS TARG 0.5,0.5;
    req_3:         GROUP 3-3.5 NO GAP;
    comment_1:     POS TARG DITHERS BY ~11 PC
    comment_2:     PIXELS & 5 WFC PIXELS.
!
!
!~~~RPSS~~~,KING,5706.prop, 8-JUL-1994 17:09