!   $Id: 5461,v 15.1 1994/07/27 18:15:35 pepsa Exp $

!  Edited 3-jun-1994 by H. E. Bond to remove a serious typographical error 
!    introduced in OPB, and to revise slightly the pixel stepping

coverpage:

  title_1:         LOW-LUMINOSITY STARS IN GLOBULAR CLUSTERS:
    title_2:       CYCLE 4 HIGH
    sci_cat:       COOL STARS
    sci_subcat:    OLD CLUSTERS
    proposal_for:  GO
    pi_fname:      HARVEY
    pi_mi:         B.
    pi_lname:      RICHER
    pi_inst:       4618
    pi_country:    CANADA
    pi_phone:      604-822-4134
    hours_pri:     28.40
    num_pri:       3
    wf_pc:         Y
    off_fname:     M.
    off_lname:     FITZPATRICK
    off_title:     ADMIN ASST
    off_inst:      4618
    off_addr_1:    DEPT. OF GEOPHYSICS AND ASTRONOMY
    off_addr_2:    UNIVERSITY OF BRITISH COLUMBIA
    off_addr_3:    129-2219 MAIN MALL
    off_city:      VANCOUVER
    off_state:     BC
    off_zip:       V6T 1Z4
    off_country:   CANADA
    off_phone:     604-822-2476
! end of coverpage

abstract:

    line_1:        We will use the unique imaging capabilities of the refurbished
    line_2:        HST and the WFPC2 to determine mass and luminosity functions for the
    line_3:        lowest-luminosity stars in one of the nearest Galactic globular
    line_4:        clusters, M4.  Our deep U, V, and I images will allow us to
    line_5:        probe two low-luminosity populations: the low-mass main-sequence
    line_6:        stars, and the white dwarfs.  Understanding the contribution that
    line_7:        these stars make to the overall mass budget of globular clusters will
    line_8:        provide new understanding of dynamical evolution, star formation in
    line_9:        the early universe, the dark-matter content of the halo of our Galaxy,
    line_10:       and the evolution of white dwarfs.  Our color-magnitude diagrams will
    line_11:       yield for the first time cooling sequences for hot white dwarfs in
    line_12:       globular clusters, direct observations of the binary populations in
    line_13:       the cluster cores, and the turndown of the Population II main
    line_14:       sequence where the ZAMS merges with the Hayashi track for convective
    line_15:       stars.  Major support programs being carried out by our team members
    line_16:       in association with this proposal include theoretical modeling of the
    line_17:       evolution of low-mass stars, model atmospheres and the transformation
    line_18:       of the theoretical spectra of these stars to HST colors, and the
    line_19:       development of photometric algorithms optimized for HST data.

!
! end of abstract

general_form_proposers:

  lname:           RICHER
    fname:         HARVEY B.
    inst:          4618
    country:       CANADA

!

  lname:           BELL
    fname:         ROGER A.
    inst:          2620
    country:       USA

!

  lname:           BOLTE
    fname:         MICHAEL
    inst:          1552
    country:       USA

!

  lname:           BOND
    fname:         HOWARD E.
    inst:          3470
    country:       USA

!

  lname:           FAHLMAN
    fname:         GREGORY G.
    inst:          4618
    country:       CANADA

!

  lname:           HARRIS
    fname:         WILLIAM E.
    inst:          4642
    country:       CANADA

!

  lname:           HESSER
    fname:         JAMES E.
    inst:          4628
    country:       CANADA

!

  lname:           MCCLURE
    fname:         ROBERT D.
    inst:          4628
    country:       CANADA

!

  lname:           PRYOR
    fname:         CARLTON P.
    inst:          3260
    country:       USA

!

  lname:           STETSON
    fname:         PETER B.
    inst:          4628
    country:       CANADA

!

  lname:           VANDENBERG
    fname:         DON A.
    inst:          4670
    country:       CANADA

!
! end of general_form_proposers block

general_form_text:

  question:        3
    section:       1
    line_1:        We will use the planetary chip of the WFPC2 to obtain deep images of 3
    line_2:        fields within the nearby globular cluster M4: one in the cluster core,
    line_3:        one at 1 core radius, and one at 4 core radii.  The aim of the program
    line_4:        is to detect and study two populations of very low-luminosity stars:
    line_5:        the faint red main-sequence stars, and the faint blue white dwarfs.
    line_7:        We will obtain U, V, and I exposures in the inner 2 fields, and V,I
    line_8:        exposures in the outer field. The planned exposures are (for the 2
    line_9:        inner fields) 15 x 1000 sec in V, 8 x 700 sec in I, and 8 x 1400 sec
    line_10:       in U; and (for the outer field) 15 x 2100 sec in V and 9 x 800 sec in
    line_11:       I.  We do not plan on U in the outer field as the white dwarf content
    line_12:       should be small.  We estimate there will be about 20 WD's in each
    line_13:       inner field.
    line_15:       Since we are obtaining multiple exposures, we will NOT CR-SPLIT each
    line_16:       individual exposure.  We will shift the telescope pointing about 1
    line_17:       to 1.5 pixels between exposures for a better sampling of the PSF.  We
    line_18:       are aiming to achieve photometry with precision better than 0.1 mag in
    line_19:       each color at V = 26.5.
    line_21:       The spacecraft roll angle is arbitrary, but all exposures on a given
    line_22:       field should be taken at the SAME roll angle.

!

  question:        4
    section:       1
    line_1:        (See Phase I proposal.)

!

  question:        5
    section:       1
    line_1:        None.

!

  question:        6
    section:       1
    line_1:        None.

!


!

  question:        8
    section:       1
    line_1:        None.

!

  question:        9
    section:       1
    line_1:        (See Phase I proposal.)

!

  question:        10
    section:       1
    line_1:        (See Phase I proposal.)

!
!end of general form text

general_form_address:

  lname:           RICHER
    fname:         HARVEY B.
    category:      PI
    inst:          4618
    addr_1:        DEPT. OF GEOPHYSICS AND ASTRONOMY
    addr_2:        UNIVERSITY OF BRITISH COLUMBIA
    addr_3:        129-2219 MAIN MALL
    city:          VANCOUVER
    state:         BC
    zip:           V6T 1Z4
    country:       CANADA
    phone:         604-822-4134
    telex:         richer@astro.ubc.ca

!
! end of general_form_address records

fixed_targets:

    targnum:       1
    name_1:        M4-CORE
    name_2:        NGC6121
    descr_1:       C,201,A,119,120,136,141
    pos_1:         RA = 16H 23M 37.76S +/- 1",
    pos_2:         DEC = -26D 31' 26.7" +/- 1",
    pos_3:         PLATE-ID=02J6
    equinox:       J2000
    comment_1:     CORE OF GLOBULAR CLUSTER M4
    fluxnum_1:     1
    fluxval_1:     V=26.5

!

    targnum:       2
    name_1:        M4-1-CORE-RADIUS
    name_2:        NGC6121
    descr_1:       C,201,A,119,120,136,141
    pos_1:         RA = 16H 23M 40.54S +/- 1",
    pos_2:         DEC = -26D 30' 45.4" +/- 1",
    pos_3:         PLATE-ID=02J6
    equinox:       J2000
    comment_1:     1 CORE RADIUS FROM CENTER OF
    comment_2:     GLOBULAR CLUSTER M4
    fluxnum_1:     1
    fluxval_1:     V=26.5

!

    targnum:       3
    name_1:        M4-4-CORE-RADII
    name_2:        NGC6121
    descr_1:       C,201,A,119,120,136,141
    pos_1:         RA = 16H 23M 54.60S +/- 1",
    pos_2:         DEC = -26D 32' 24.3" +/- 1",
    pos_3:         PLATE-ID=02J6
    equinox:       J2000
    comment_1:     4 CORE RADII FROM CENTER OF
    comment_2:     GLOBULAR CLUSTER M4
    fluxnum_1:     1
    fluxval_1:     V=26.5

!
! end of fixed targets

! No solar system records found

! No generic target records found

exposure_logsheet:

    linenum:       1.000
    sequence_1:    DEFINE
    sequence_2:    16-POSNS
    targname:      #
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1-FIX
    sp_element:    F814W
    num_exp:       1
    time_per_exp:  60S
    fluxnum_1:     1
    priority:      1
    param_1:       CR-SPLIT=NO,
    param_2:       CLOCKS=NO,
    param_3:       ATD-GAIN=7
    req_1:         CYCLE 4 / 1-8.1;
    req_2:         PCS MODE F / 1-8.1;
    req_3:         SAME ORIENT FOR 1.1-8.1 AS 1;
    req_4:         POS TARG 0., 0.
    comment_1:     THIS SEQUENCE TAKES 8 EXPOSURES
    comment_2:     EACH IN U AND I, SPACED AROUND 
    comment_3:     AN OCTAGONAL PATH WITH 1.5-PIXEL
    comment_4:     STEPS BETWEEN EXPOSURES.
!

    linenum:       1.100
    sequence_1:    DEFINE
    sequence_2:    16-POSNS
    targname:      #
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1-FIX
    sp_element:    F336W
    num_exp:       1
    time_per_exp:  130S
    fluxnum_1:     1
    priority:      1
    param_1:       CR-SPLIT=NO,
    param_2:       CLOCKS=NO,
    param_3:       ATD-GAIN=7
    req_1:         POS TARG 0., 0.

!

    linenum:       2.000
    sequence_1:    DEFINE
    sequence_2:    16-POSNS
    targname:      #
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1-FIX
    sp_element:    F814W
    num_exp:       1
    time_per_exp:  70S
    fluxnum_1:     1
    priority:      1
    param_1:       CR-SPLIT=NO,
    param_2:       CLOCKS=NO,
    param_3:       ATD-GAIN=7
    req_1:         POS TARG 0.069, 0.

!

    linenum:       2.100
    sequence_1:    DEFINE
    sequence_2:    16-POSNS
    targname:      #
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1-FIX
    sp_element:    F336W
    num_exp:       1
    time_per_exp:  150S
    fluxnum_1:     1
    priority:      1
    param_1:       CR-SPLIT=NO,
    param_2:       CLOCKS=NO,
    param_3:       ATD-GAIN=7
    req_1:         POS TARG 0.069, 0.

!

    linenum:       3.000
    sequence_1:    DEFINE
    sequence_2:    16-POSNS
    targname:      #
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1-FIX
    sp_element:    F814W
    num_exp:       1
    time_per_exp:  70S
    fluxnum_1:     1
    priority:      1
    param_1:       CR-SPLIT=NO,
    param_2:       CLOCKS=NO,
    param_3:       ATD-GAIN=7
    req_1:         POS TARG 0.138, 0.069

!

    linenum:       3.100
    sequence_1:    DEFINE
    sequence_2:    16-POSNS
    targname:      #
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1-FIX
    sp_element:    F336W
    num_exp:       1
    time_per_exp:  150S
    fluxnum_1:     1
    priority:      1
    param_1:       CR-SPLIT=NO,
    param_2:       CLOCKS=NO,
    param_3:       ATD-GAIN=7
    req_1:         POS TARG 0.138, 0.069

!

    linenum:       4.000
    sequence_1:    DEFINE
    sequence_2:    16-POSNS
    targname:      #
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1-FIX
    sp_element:    F814W
    num_exp:       1
    time_per_exp:  70S
    fluxnum_1:     1
    priority:      1
    param_1:       CR-SPLIT=NO,
    param_2:       CLOCKS=NO,
    param_3:       ATD-GAIN=7
    req_1:         POS TARG 0.138, 0.138

!

    linenum:       4.100
    sequence_1:    DEFINE
    sequence_2:    16-POSNS
    targname:      #
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1-FIX
    sp_element:    F336W
    num_exp:       1
    time_per_exp:  150S
    fluxnum_1:     1
    priority:      1
    param_1:       CR-SPLIT=NO,
    param_2:       CLOCKS=NO,
    param_3:       ATD-GAIN=7
    req_1:         POS TARG 0.138, 0.138

!

    linenum:       5.000
    sequence_1:    DEFINE
    sequence_2:    16-POSNS
    targname:      #
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1-FIX
    sp_element:    F814W
    num_exp:       1
    time_per_exp:  70S
    fluxnum_1:     1
    priority:      1
    param_1:       CR-SPLIT=NO,
    param_2:       CLOCKS=NO,
    param_3:       ATD-GAIN=7
    req_1:         POS TARG 0.069, 0.207

!

    linenum:       5.100
    sequence_1:    DEFINE
    sequence_2:    16-POSNS
    targname:      #
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1-FIX
    sp_element:    F336W
    num_exp:       1
    time_per_exp:  150S
    fluxnum_1:     1
    priority:      1
    param_1:       CR-SPLIT=NO,
    param_2:       CLOCKS=NO,
    param_3:       ATD-GAIN=7
    req_1:         POS TARG 0.069, 0.207

!

    linenum:       6.000
    sequence_1:    DEFINE
    sequence_2:    16-POSNS
    targname:      #
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1-FIX
    sp_element:    F814W
    num_exp:       1
    time_per_exp:  70S
    fluxnum_1:     1
    priority:      1
    param_1:       CR-SPLIT=NO,
    param_2:       CLOCKS=NO,
    param_3:       ATD-GAIN=7
    req_1:         POS TARG 0.0, 0.207

!

    linenum:       6.100
    sequence_1:    DEFINE
    sequence_2:    16-POSNS
    targname:      #
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1-FIX
    sp_element:    F336W
    num_exp:       1
    time_per_exp:  150S
    fluxnum_1:     1
    priority:      1
    param_1:       CR-SPLIT=NO,
    param_2:       CLOCKS=NO,
    param_3:       ATD-GAIN=7
    req_1:         POS TARG 0.0, 0.207

!

    linenum:       7.000
    sequence_1:    DEFINE
    sequence_2:    16-POSNS
    targname:      #
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1-FIX
    sp_element:    F814W
    num_exp:       1
    time_per_exp:  70S
    fluxnum_1:     1
    priority:      1
    param_1:       CR-SPLIT=NO,
    param_2:       CLOCKS=NO,
    param_3:       ATD-GAIN=7
    req_1:         POS TARG -0.069, 0.138

!

    linenum:       7.100
    sequence_1:    DEFINE
    sequence_2:    16-POSNS
    targname:      #
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1-FIX
    sp_element:    F336W
    num_exp:       1
    time_per_exp:  150S
    fluxnum_1:     1
    priority:      1
    param_1:       CR-SPLIT=NO,
    param_2:       CLOCKS=NO,
    param_3:       ATD-GAIN=7
    req_1:         POS TARG -0.069, 0.138

!

    linenum:       8.000
    sequence_1:    DEFINE
    sequence_2:    16-POSNS
    targname:      #
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1-FIX
    sp_element:    F814W
    num_exp:       1
    time_per_exp:  70S
    fluxnum_1:     1
    priority:      1
    param_1:       CR-SPLIT=NO,
    param_2:       CLOCKS=NO,
    param_3:       ATD-GAIN=7
    req_1:         POS TARG -0.069, 0.069

!

    linenum:       8.100
    sequence_1:    DEFINE
    sequence_2:    16-POSNS
    targname:      #
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1-FIX
    sp_element:    F336W
    num_exp:       1
    time_per_exp:  150S
    fluxnum_1:     1
    priority:      1
    param_1:       CR-SPLIT=NO,
    param_2:       CLOCKS=NO,
    param_3:       ATD-GAIN=7
    req_1:         POS TARG -0.069, 0.069

!

    linenum:       11.000
    sequence_1:    DEFINE
    sequence_2:    8-POSNS
    targname:      #
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1-FIX
    sp_element:    #
    num_exp:       1
    time_per_exp:  100S
    fluxnum_1:     1
    priority:      1
    param_1:       CR-SPLIT=NO,
    param_2:       CLOCKS=NO,
    param_3:       ATD-GAIN=7
    req_1:         CYCLE 4 / 11-18;
    req_2:         PCS MODE F / 11-18;
    req_3:         SAME ORIENT FOR 12-18 AS 11;
    req_4:         POS TARG 0., 0.
    comment_1:     THIS SEQUENCE TAKES 8 EXPOSURES
    comment_2:     SPACED AROUND AN OCTAGONAL PATH
    comment_3:     WITH 1.5-PIXEL STEPS BETWEEN
    comment_4:     EXPOSURES.

!

    linenum:       12.000
    sequence_1:    DEFINE
    sequence_2:    8-POSNS
    targname:      #
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1-FIX
    sp_element:    #
    num_exp:       1
    time_per_exp:  100S
    fluxnum_1:     1
    priority:      1
    param_1:       CR-SPLIT=NO,
    param_2:       CLOCKS=NO,
    param_3:       ATD-GAIN=7
    req_1:         POS TARG 0.069, 0.

!

    linenum:       13.000
    sequence_1:    DEFINE
    sequence_2:    8-POSNS
    targname:      #
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1-FIX
    sp_element:    #
    num_exp:       1
    time_per_exp:  100S
    fluxnum_1:     1
    priority:      1
    param_1:       CR-SPLIT=NO,
    param_2:       CLOCKS=NO,
    param_3:       ATD-GAIN=7
    req_1:         POS TARG 0.138, 0.069

!

    linenum:       14.000
    sequence_1:    DEFINE
    sequence_2:    8-POSNS
    targname:      #
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1-FIX
    sp_element:    #
    num_exp:       1
    time_per_exp:  100S
    fluxnum_1:     1
    priority:      1
    param_1:       CR-SPLIT=NO,
    param_2:       CLOCKS=NO,
    param_3:       ATD-GAIN=7
    req_1:         POS TARG 0.138, 0.138

!

    linenum:       15.000
    sequence_1:    DEFINE
    sequence_2:    8-POSNS
    targname:      #
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1-FIX
    sp_element:    #
    num_exp:       1
    time_per_exp:  100S
    fluxnum_1:     1
    priority:      1
    param_1:       CR-SPLIT=NO,
    param_2:       CLOCKS=NO,
    param_3:       ATD-GAIN=7
    req_1:         POS TARG 0.069, 0.207

!

    linenum:       16.000
    sequence_1:    DEFINE
    sequence_2:    8-POSNS
    targname:      #
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1-FIX
    sp_element:    #
    num_exp:       1
    time_per_exp:  100S
    fluxnum_1:     1
    priority:      1
    param_1:       CR-SPLIT=NO,
    param_2:       CLOCKS=NO,
    param_3:       ATD-GAIN=7
    req_1:         POS TARG 0.0, 0.207

!

    linenum:       17.000
    sequence_1:    DEFINE
    sequence_2:    8-POSNS
    targname:      #
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1-FIX
    sp_element:    #
    num_exp:       1
    time_per_exp:  100S
    fluxnum_1:     1
    priority:      1
    param_1:       CR-SPLIT=NO,
    param_2:       CLOCKS=NO,
    param_3:       ATD-GAIN=7
    req_1:         POS TARG -0.069, 0.138

!

    linenum:       18.000
    sequence_1:    DEFINE
    sequence_2:    8-POSNS
    targname:      #
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1-FIX
    sp_element:    #
    num_exp:       1
    time_per_exp:  100S
    fluxnum_1:     1
    priority:      1
    param_1:       CR-SPLIT=NO,
    param_2:       CLOCKS=NO,
    param_3:       ATD-GAIN=7
    req_1:         POS TARG -0.069, 0.069

!

    linenum:       21.000
    sequence_1:    DEFINE
    sequence_2:    15-POSNS
    targname:      #
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1-FIX
    sp_element:    #
    num_exp:       1
    time_per_exp:  100S
    fluxnum_1:     1
    priority:      1
    param_1:       CR-SPLIT=NO,
    param_2:       CLOCKS=NO,
    param_3:       ATD-GAIN=7
    req_1:         CYCLE 4 / 21-35;
    req_2:         PCS MODE F / 21-35;
    req_3:         SAME ORIENT FOR 22-35 AS 21;
    req_4:         POS TARG 0., 0.
    comment_1:     THIS SEQUENCE TAKES 15 EXPOSURES
    comment_2:     SPACED AROUND A POLYGONAL PATH
    comment_3:     WITH 1-PIXEL STEPS BETWEEN
    comment_4:     EXPOSURES.

!

    linenum:       22.000
    sequence_1:    DEFINE
    sequence_2:    15-POSNS
    targname:      #
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1-FIX
    sp_element:    #
    num_exp:       1
    time_per_exp:  100S
    fluxnum_1:     1
    priority:      1
    param_1:       CR-SPLIT=NO,
    param_2:       CLOCKS=NO,
    param_3:       ATD-GAIN=7
    req_1:         POS TARG 0.045, 0.

!

    linenum:       23.000
    sequence_1:    DEFINE
    sequence_2:    15-POSNS
    targname:      #
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1-FIX
    sp_element:    #
    num_exp:       1
    time_per_exp:  100S
    fluxnum_1:     1
    priority:      1
    param_1:       CR-SPLIT=NO,
    param_2:       CLOCKS=NO,
    param_3:       ATD-GAIN=7
    req_1:         POS TARG 0.090, 0.045

!

    linenum:       24.000
    sequence_1:    DEFINE
    sequence_2:    15-POSNS
    targname:      #
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1-FIX
    sp_element:    #
    num_exp:       1
    time_per_exp:  100S
    fluxnum_1:     1
    priority:      1
    param_1:       CR-SPLIT=NO,
    param_2:       CLOCKS=NO,
    param_3:       ATD-GAIN=7
    req_1:         POS TARG 0.138, 0.090

!

    linenum:       25.000
    sequence_1:    DEFINE
    sequence_2:    15-POSNS
    targname:      #
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1-FIX
    sp_element:    #
    num_exp:       1
    time_per_exp:  100S
    fluxnum_1:     1
    priority:      1
    param_1:       CR-SPLIT=NO,
    param_2:       CLOCKS=NO,
    param_3:       ATD-GAIN=7
    req_1:         POS TARG 0.183, 0.138

!

    linenum:       26.000
    sequence_1:    DEFINE
    sequence_2:    15-POSNS
    targname:      #
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1-FIX
    sp_element:    #
    num_exp:       1
    time_per_exp:  100S
    fluxnum_1:     1
    priority:      1
    param_1:       CR-SPLIT=NO,
    param_2:       CLOCKS=NO,
    param_3:       ATD-GAIN=7
    req_1:         POS TARG 0.183, 0.183

!

    linenum:       27.000
    sequence_1:    DEFINE
    sequence_2:    15-POSNS
    targname:      #
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1-FIX
    sp_element:    #
    num_exp:       1
    time_per_exp:  100S
    fluxnum_1:     1
    priority:      1
    param_1:       CR-SPLIT=NO,
    param_2:       CLOCKS=NO,
    param_3:       ATD-GAIN=7
    req_1:         POS TARG 0.138, 0.228

!

    linenum:       28.000
    sequence_1:    DEFINE
    sequence_2:    15-POSNS
    targname:      #
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1-FIX
    sp_element:    #
    num_exp:       1
    time_per_exp:  100S
    fluxnum_1:     1
    priority:      1
    param_1:       CR-SPLIT=NO,
    param_2:       CLOCKS=NO,
    param_3:       ATD-GAIN=7
    req_1:         POS TARG 0.090, 0.276

!

    linenum:       29.000
    sequence_1:    DEFINE
    sequence_2:    15-POSNS
    targname:      #
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1-FIX
    sp_element:    #
    num_exp:       1
    time_per_exp:  100S
    fluxnum_1:     1
    priority:      1
    param_1:       CR-SPLIT=NO,
    param_2:       CLOCKS=NO,
    param_3:       ATD-GAIN=7
    req_1:         POS TARG 0.045, 0.321

!

    linenum:       30.000
    sequence_1:    DEFINE
    sequence_2:    15-POSNS
    targname:      #
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1-FIX
    sp_element:    #
    num_exp:       1
    time_per_exp:  100S
    fluxnum_1:     1
    priority:      1
    param_1:       CR-SPLIT=NO,
    param_2:       CLOCKS=NO,
    param_3:       ATD-GAIN=7
    req_1:         POS TARG 0., 0.321

!

    linenum:       31.000
    sequence_1:    DEFINE
    sequence_2:    15-POSNS
    targname:      #
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1-FIX
    sp_element:    #
    num_exp:       1
    time_per_exp:  100S
    fluxnum_1:     1
    priority:      1
    param_1:       CR-SPLIT=NO,
    param_2:       CLOCKS=NO,
    param_3:       ATD-GAIN=7
    req_1:         POS TARG -0.045, 0.276

!

    linenum:       32.000
    sequence_1:    DEFINE
    sequence_2:    15-POSNS
    targname:      #
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1-FIX
    sp_element:    #
    num_exp:       1
    time_per_exp:  100S
    fluxnum_1:     1
    priority:      1
    param_1:       CR-SPLIT=NO,
    param_2:       CLOCKS=NO,
    param_3:       ATD-GAIN=7
    req_1:         POS TARG -0.090, 0.228

!

    linenum:       33.000
    sequence_1:    DEFINE
    sequence_2:    15-POSNS
    targname:      #
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1-FIX
    sp_element:    #
    num_exp:       1
    time_per_exp:  100S
    fluxnum_1:     1
    priority:      1
    param_1:       CR-SPLIT=NO,
    param_2:       CLOCKS=NO,
    param_3:       ATD-GAIN=7
    req_1:         POS TARG -0.138, 0.183

!

    linenum:       34.000
    sequence_1:    DEFINE
    sequence_2:    15-POSNS
    targname:      #
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1-FIX
    sp_element:    #
    num_exp:       1
    time_per_exp:  100S
    fluxnum_1:     1
    priority:      1
    param_1:       CR-SPLIT=NO,
    param_2:       CLOCKS=NO,
    param_3:       ATD-GAIN=7
    req_1:         POS TARG -0.138, 0.138

!

    linenum:       35.000
    sequence_1:    DEFINE
    sequence_2:    15-POSNS
    targname:      #
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1-FIX
    sp_element:    #
    num_exp:       1
    time_per_exp:  100S
    fluxnum_1:     1
    priority:      1
    param_1:       CR-SPLIT=NO,
    param_2:       CLOCKS=NO,
    param_3:       ATD-GAIN=7
    req_1:         POS TARG -0.090, 0.090

!

    linenum:       41.000
    sequence_1:    USE
    sequence_2:    16-POSNS
    targname:      M4-CORE
    time_per_exp:  X10
    req_1:         SAME ORIENT FOR 42 AS 41
    comment_1:     SEQUENCE OF 8 X 1500 SEC U FRAMES 
    comment_2:     AND 8 X 700 SEC I FRAMES

!

    linenum:       42.000
    sequence_1:    USE
    sequence_2:    15-POSNS
    targname:      M4-CORE
    sp_element:    F555W
    time_per_exp:  X10
    comment_1:     SEQUENCE OF 15 X 1000 SEC V FRAMES

!

    linenum:       51.000
    sequence_1:    USE
    sequence_2:    16-POSNS
    targname:      M4-1-CORE-RADIUS
    time_per_exp:  X10
    req_1:         SAME ORIENT FOR 52 AS 51
    comment_1:     SEQUENCE OF 8 X 1500 SEC U FRAMES 
    comment_2:     AND 8 X 700 SEC I FRAMES

!

    linenum:       52.000
    sequence_1:    USE
    sequence_2:    15-POSNS
    targname:      M4-1-CORE-RADIUS
    sp_element:    F555W
    time_per_exp:  X10
    comment_1:     SEQUENCE OF 15 X 1000 SEC V FRAMES

!

    linenum:       61.000
    sequence_1:    USE
    sequence_2:    15-POSNS
    targname:      M4-4-CORE-RADII
    sp_element:    F555W
    time_per_exp:  X21
    req_1:         SAME ORIENT FOR 62 AS 61
    comment_1:     SEQUENCE OF 15 X 2100 SEC V FRAMES

!

    linenum:       62.000
    sequence_1:    USE
    sequence_2:    8-POSNS
    targname:      M4-4-CORE-RADII
    sp_element:    F814W
    time_per_exp:  X8
    comment_1:     SEQUENCE OF 8 X 800 SEC I FRAMES

!

    linenum:       63.000
    targname:      M4-4-CORE-RADII
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1-FIX
    sp_element:    F814W
    num_exp:       1
    time_per_exp:  800S
    fluxnum_1:     1
    priority:      1
    param_1:       CR-SPLIT=NO,
    param_2:       CLOCKS=NO,
    param_3:       ATD-GAIN=7
    req_1:         CYCLE 4;
    req_2:         PCS MODE F;
    req_3:         SAME ORIENT FOR 63 AS 61;
    req_4:         POS TARG 0.036, 0.102
    comment_1:     AN EXTRA I EXPOSURE TO USE UP THE
    comment_2:     REST OF THE TAC TIME ALLOCATION.

!
! end of exposure logsheet

! No scan data records found