!  File:  1112C.PROP
!  Database:  PEPDB
!  Date:  16-FEB-1994:02:10:31

coverpage:

  title_1:         GALACTIC GLOBULAR CLUSTERS (WF/PC-08):
    title_2:       CYCLE 3 AND FUTURE-CYCLE CONTINUATION
    sci_cat:       STELLAR POPULATIONS
    proposal_for:  GTO/WFC
    pi_title:      PROF.
    pi_fname:      JAMES
    pi_mi:         A.
    pi_lname:      WESTPHAL
    pi_inst:       CALTECH
    pi_country:    USA
    pi_phone:      (818) 356-4900
    keywords_1:    GLOBULAR CLUSTER, POPULATION II, DWARF, WHITE DWARF,
    keywords_2:    DYNAMICS, STELLAR POPULATION
    hours_pri:     10.20
    num_pri:       10
    pi_position:   PROFESSOR OF PLANETA
! end of coverpage

abstract:

    line_1:        Two classes of observations will be performed on a small sample of galactic
    line_2:        globular star clusters. In one, a set of V and I frames will be obtained at
    line_3:        two radii to study the faint end of the luminosity function and mass
    line_4:        segregation; in one cluster (NGC6752) the data will also reach the bright end
    line_5:        of the white dwarf luminosity function.
    line_7:        In the other, the nuclei of a number of clusters will be imaged in the U band
    line_8:        to study the core properties and the existance of a collapsed cusp if any. The
    line_9:        clusters are relatively nearby and their core properties span the range from
    line_10:       extremely regular to extremely cusplike.

!
! end of abstract

general_form_proposers:

  lname:           WESTPHAL
    fname:         JAMES
    mi:            A.
    inst:          CALTECH
    country:       USA

!
! end of general_form_proposers block

general_form_text:

  question:        3
    section:       1
    line_1:        In each filed in each cluster, a series of exposures in different filters is
    line_2:        obtained. In the outer parts, half-orbit-long exposures, accompanied by a
    line_3:        short cosmic-ray rejection image, are obtained. In the crowded inner parts,
    line_4:        the orbits are broken into three or six pieces to avoid saturation covering too
    line_5:        large a fraction of the real estate. In all these frames, the formal surface
    line_6:        brightness is too high for the exposure times requested, but simulations and
    line_7:        calculations show that most of the brightness is in a few bright stars which
    line_8:        will run severely, but the blast tracks will cover only a small fraction of the
    line_9:        area of the detector. In most instances the signal-to-noise numbers are given;
    line_10:       the exposure times are such that the system noise is a bit lower than the
    line_11:       crowding noise. It is not necessary for these pictures, if the telescope
    line_12:       baffling performs as expected, for the exposures to be done entirely in the
    line_13:       dark, but it is necessary for many of them to be done in the DARK HALF of the
    line_14:       orbit (see Section 6), and that means that they need to be done near the
    line_15:       antisolar meridian. Since the launch date is not known, the specification of
    line_16:       the cycle makes no sense; the breakdown should be approximately as follows:
    line_17:       (But is not critical.)

!

  question:        6
    section:       1
    line_1:        Many exposures in this program are sequences of exposure times on the same
    line_2:        object with the same or different filters. It is imperative that these be done
    line_3:        with exactly the same pointing, so that the undersampled WFC pictures can be
    line_4:        compared and combined. As usual, we request uninterrupted exposures in order
    line_5:        not to pay the signal-to-noise penalty associated with additional readouts.
    line_7:        It is also desired that all exposures longer than 1000 sec be taken after the
    line_8:        telescope has passed beyond the brightly lit limb of the Earth (see note on
    line_9:        "dark time" on exposure logsheets). It is not requested that the telescope
    line_10:       actually be within the Earth's shadow. Dark time is needed to minimize diffuse
    line_11:       scattered light and maximize S/N on faint stars. The above guidelines of 1000
    line_12:       sec may need modification after real experience in orbit.

!

  question:        13
    section:       1
    line_1:        Multicolor observations will be made in two fields each in M3, M13, and
    line_2:        NGC6752, for the purpose of measuring the luminosity function, mass
    line_3:        segregation, and for the discovery of white dwarfs and other low-luminosity
    line_4:        stars. Ultraviolet exposures in the nuclei of M3, M92, M15, and 6752 will be
    line_5:        made to investigate the details of the core shape in the light of the turnoff
    line_6:        dwarfs.

!
!end of general form text

general_form_address:

  lname:           WESTPHAL
    fname:         JAMES
    mi:            A.
    title:         PROF.
    category:      PI
    inst:          CALTECH
    addr_1:        M/S 170-25
    addr_2:        DIVISION OF GEOLOGICAL
    addr_3:        & PLANETARY SCIENCES
    city:          PASADENA
    state:         CA
    zip:           91125
    country:       USA

!
! end of general_form_address records

fixed_targets:

    targnum:       1
    name_1:        M3
    descr_1:       C, 201
    pos_1:         RA= 13H39M52.9S +/-0.1S,
    pos_2:         DEC= +28D37'38" +/-1"
    equinox:       1950
    comment_1:     GLOBULAR CLUSTER
    fluxnum_1:     1
    fluxval_1:     SURF(V)=16.3

!

    targnum:       2
    name_1:        M13
    descr_1:       C, 201
    pos_1:         RA=16H39M54.2S+/-0.1S,
    pos_2:         DEC=+36D33'16"+/-1"
    equinox:       1950
    comment_1:     GLOBULAR CLUSTER
    comment_2:     B-V=0.69 ALSO FOR FLUX DATA
    fluxnum_1:     1
    fluxval_1:     SURF(V)=16.6

!

    targnum:       3
    name_1:        NGC6752
    descr_1:       C, 201
    pos_1:         RA= 19H06M27.3S +/-0.1S,
    pos_2:         DEC= -60D03'50" +/-1"
    equinox:       1950
    comment_1:     GLOBULAR CLUSTER
    comment_2:     B-V=0.68 ALSO FOR FLUX DATA
    fluxnum_1:     1
    fluxval_1:     SURF(V) = 16.2

!

    targnum:       4
    name_1:        M15
    descr_1:       C, 201
    pos_1:         RA= 21H27M33.3S +/-0.1S,
    pos_2:         DEC= +11D56'49" +/-1"
    equinox:       1950
    comment_1:     GLOBULAR CLUSTER
    comment_2:     B-V=0.68 ALSO FOR FLUX DATA
    fluxnum_1:     1
    fluxval_1:     SURF(V) = 13.5

!

    targnum:       5
    name_1:        M92
    descr_1:       C, 201
    pos_1:         RA= 17H15M35.0S +/-0.1S,
    pos_2:         DEC= +43D11'21" +/-1"
    equinox:       1950
    comment_1:     GLOBULAR CLUSTER
    comment_2:     B-V=0.68 ALSO FOR FLUX DATA
    fluxnum_1:     1
    fluxval_1:     SURF(V) = 15.4

!

    targnum:       6
    name_1:        M3-105-NORTH
    descr_1:       C, 201
    pos_1:         RA-OFF = 0S +/- 0.1S,
    pos_2:         DEC-OFF = +105" +/- 1",
    pos_3:         FROM 1
    equinox:       1950
    comment_1:     GLOBULAR CLUSTER
    fluxnum_1:     1
    fluxval_1:     SURF(V) = 18.0

!

    targnum:       7
    name_1:        M3-300-NORTH
    descr_1:       C, 201
    pos_1:         RA-OFF = 0S +/- 0.1S,
    pos_2:         DEC-OFF = +300" +/- 1",
    pos_3:         FROM 1
    equinox:       1950
    comment_1:     GLOBULAR CLUSTER
    fluxnum_1:     1
    fluxval_1:     SURF(V) = 21.6

!

    targnum:       8
    name_1:        M13-123-NORTH
    descr_1:       C, 201
    pos_1:         RA-OFF = 0S +/- 0.1S,
    pos_2:         DEC-OFF = +123" +/- 1",
    pos_3:         FROM 2
    equinox:       1950
    comment_1:     GLOBULAR CLUSTER
    fluxnum_1:     1
    fluxval_1:     SURF(V) = 18.0

!

    targnum:       9
    name_1:        M13-400-SOUTH
    descr_1:       C, 201
    pos_1:         RA-OFF = 0S +/- 0.1S,
    pos_2:         DEC-OFF = -400" +/- 1",
    pos_3:         FROM 2
    equinox:       1950
    comment_1:     GLOBULAR CLUSTER
    fluxnum_1:     1
    fluxval_1:     SURF(V) = 22.3

!

    targnum:       10
    name_1:        NGC6752-105-NORTH
    descr_1:       C, 201
    pos_1:         RA-OFF = 0S +/- 0.1S,
    pos_2:         DEC-OFF = +105" +/- 1",
    pos_3:         FROM 3
    equinox:       1950
    comment_1:     GLOBULAR CLUSTER
    fluxnum_1:     1
    fluxval_1:     SURF(V) = 18.0

!

    targnum:       11
    name_1:        NGC6752-300-PA330
    descr_1:       C, 201
    pos_1:         R = 300",
    pos_2:         PA = 330D,
    pos_3:         FROM 3
    equinox:       1950
    comment_1:     GLOBULAR CLUSTER
    fluxnum_1:     11
    fluxval_1:     SURF(V) = 21.4

!
! end of fixed targets

! No solar system records found

! No generic target records found

exposure_logsheet:

    linenum:       1.000
    sequence_1:    DEFINE
    sequence_2:    BQL
    targname:      #
    config:        WFC
    opmode:        IMAGE
    aperture:      WFALL
    sp_element:    F555W
    num_exp:       1
    time_per_exp:  100S
    fluxnum_1:     #
    priority:      #
    param_1:       CR-SPLIT=NO,
    param_2:       PRE-FLASH=YES,
    param_3:       CLOCKS=YES
    req_1:         NON-INT / 1-322;
    req_2:         GROUP 1-3.5 WITHIN 1D;
    comment_1:     CYCLE 3-9 PROPOSAL VERSION,
    comment_2:     RML  3/24/92  21:20.

!

    linenum:       2.000
    sequence_1:    ^
    targname:      #
    config:        WFC
    opmode:        IMAGE
    aperture:      WFALL
    sp_element:    F555W
    num_exp:       2
    time_per_exp:  600S
    fluxnum_1:     #
    priority:      #
    param_1:       PRE-FLASH=NO,
    param_2:       CLOCKS=YES,
    param_3:       CR-SPLIT=NO

!

    linenum:       2.500
    sequence_1:    ^
    targname:      #
    config:        WFC
    opmode:        IMAGE
    aperture:      WFALL
    sp_element:    F555W
    num_exp:       1
    time_per_exp:  600S
    fluxnum_1:     #
    priority:      #
    param_1:       PRE-FLASH=NO,
    param_2:       CLOCKS=YES,
    param_3:       CR-SPLIT=NO,
    param_4:       PURGE=YES
    req_3:         SEQUENCE 1-2.5 NO GAP;
    comment_1:     LINES 1-2.5 ARE INTENDED TO FIT INTO
    comment_2:     ONE ORBIT. ADJUST 600S EXPOSURE TIME
    comment_3:     +/-20 PERCENT TO ACCOMPLISH.
    comment_4:     FINAL PURGE ON BRIGHT SIDE AFTER LAST
    comment_5:     EXPOSURE.

!

    linenum:       3.000
    sequence_1:    ^
    targname:      #
    config:        WFC
    opmode:        IMAGE
    aperture:      WFALL
    sp_element:    F785LP
    num_exp:       4
    time_per_exp:  400S
    fluxnum_1:     #
    priority:      #
    param_1:       PRE-FLASH=NO,
    param_2:       CLOCKS=YES,
    param_3:       CR-SPLIT=NO

!

    linenum:       3.500
    sequence_1:    ^
    targname:      #
    config:        WFC
    opmode:        IMAGE
    aperture:      WFALL
    sp_element:    F785LP
    num_exp:       1
    time_per_exp:  400S
    fluxnum_1:     #
    priority:      #
    param_1:       PRE-FLASH=NO,
    param_2:       CLOCKS=YES,
    param_3:       CR-SPLIT=NO,
    param_4:       PURGE=YES
    req_1:         SAME ORIENT FOR 2-3.5 AS 1;
    req_2:         SAME POS FOR 2-3.5 AS 1;
    req_3:         POS TARG 10,-10 / 1-3.5;
    req_4:         SEQUENCE 3-3.5 NO GAP;
    comment_1:     LINES 3-3.5 ARE INTENDED TO FIT INTO
    comment_2:     ONE ORBIT. ADJUST 400S EXPOSURE TIME
    comment_3:     +/-20 PERCENT TO ACCOMPLISH.
    comment_4:     FINAL PURGE ON BRIGHT SIDE AFTER LAST
    comment_5:     EXPOSURE.

!

    linenum:       4.000
    sequence_1:    DEFINE
    sequence_2:    FQL
    targname:      #
    config:        WFC
    opmode:        IMAGE
    aperture:      WFALL
    sp_element:    F555W
    num_exp:       1
    time_per_exp:  100S
    fluxnum_1:     #
    priority:      #
    param_1:       PRE-FLASH=YES,
    param_2:       CR-SPLIT=NO,
    param_3:       CLOCKS=YES
    req_1:         POS TARG 10,-10 / 4-9;
    req_2:         GROUP 4-9 WITHIN 1D;
    req_3:         SEQUENCE 4-6 NO GAP;

!

    linenum:       5.000
    sequence_1:    ^
    targname:      #
    config:        WFC
    opmode:        IMAGE
    aperture:      WFALL
    sp_element:    F555W
    num_exp:       1
    time_per_exp:  300S
    fluxnum_1:     #
    priority:      #
    param_1:       PRE-FLASH=YES,
    param_2:       CR-SPLIT=NO,
    param_3:       CLOCKS=YES
    req_1:         SAME POS FOR 5-9 AS 4;
    req_2:         SAME ORIENT FOR 5-9 AS 4;

!

    linenum:       6.000
    sequence_1:    ^
    targname:      #
    config:        WFC
    opmode:        IMAGE
    aperture:      WFALL
    sp_element:    F555W
    num_exp:       1
    time_per_exp:  1600S
    fluxnum_1:     #
    priority:      #
    param_1:       PURGE=YES,
    param_2:       PRE-FLASH=NO,
    param_3:       CLOCKS=YES,
    param_4:       CR-SPLIT=0.5,
    param_5:       CR-TOLERANCE=0.0
    comment_1:     LINES 4-6 ARE INTENDED TO FIT INTO
    comment_2:     ONE ORBIT. ADJUST 1600S EXPOSURE TIME
    comment_3:     +/-20 PERCENT TO ACCOMPLISH, BUT
    comment_4:     RESPECT EQUAL SPLIT.
    comment_5:     FINAL PURGE ON BRIGHT SIDE AFTER LAST
    comment_6:     EXPOSURE.

!

    linenum:       7.000
    sequence_1:    ^
    targname:      #
    config:        WFC
    opmode:        IMAGE
    aperture:      WFALL
    sp_element:    F785LP
    num_exp:       1
    time_per_exp:  100S
    fluxnum_1:     #
    priority:      #
    param_1:       PRE-FLASH=YES,
    param_2:       CR-SPLIT=NO,
    param_3:       CLOCKS=YES
    req_1:         SEQ 7-9;

!

    linenum:       8.000
    sequence_1:    DEFINE
    sequence_2:    FQL
    targname:      #
    config:        WFC
    opmode:        IMAGE
    aperture:      WFALL
    sp_element:    F785LP
    num_exp:       1
    time_per_exp:  300S
    fluxnum_1:     #
    priority:      #
    param_1:       PRE-FLASH=YES,
    param_2:       CR-SPLIT=NO,
    param_3:       CLOCKS=YES

!

    linenum:       9.000
    sequence_1:    ^
    targname:      #
    config:        WFC
    opmode:        IMAGE
    aperture:      WFALL
    sp_element:    F785LP
    num_exp:       1
    time_per_exp:  1600S
    fluxnum_1:     #
    priority:      #
    param_1:       PURGE=YES,
    param_2:       PRE-FLASH=NO,
    param_3:       CLOCKS=YES,
    param_4:       CR-SPLIT=0.5,
    param_5:       CR-TOLERANCE=0.0
    comment_1:     LINES 7-9 ARE INTENDED TO FIT INTO
    comment_2:     ONE ORBIT. ADJUST 1600S EXPOSURE TIME
    comment_3:     +/-20 PERCENT TO ACCOMPLISH, BUT
    comment_4:     RESPECT EQUAL SPLIT.
    comment_5:     FINAL PURGE ON BRIGHT SIDE AFTER LAST
    comment_6:     EXPOSURE.

!

    linenum:       10.000
    sequence_1:    DEFINE
    sequence_2:    NSEQ
    targname:      #
    config:        PC
    opmode:        IMAGE
    aperture:      PC6
    sp_element:    F336W
    num_exp:       1
    time_per_exp:  20S
    fluxnum_1:     #
    priority:      #
    param_1:       PRE-FLASH=YES,
    param_2:       CR-SPLIT=NO
    req_1:         PCS MODE C / 10-12;
    req_2:         SEQ 10-12 NO GAP;
    comment_1:     ORIGINAL POS TARG HAD 16,-16
    comment_2:     PUTTING CENTER INTO PC8, NOT PC6

!

    linenum:       11.000
    sequence_1:    ^
    targname:      #
    config:        PC
    opmode:        IMAGE
    aperture:      PC6
    sp_element:    F336W
    num_exp:       1
    time_per_exp:  100S
    fluxnum_1:     #
    priority:      #
    param_1:       PRE-FLASH=YES,
    param_2:       CR-SPLIT=NO
    req_1:         SAME ORIENT FOR 11-12 AS 10;
    req_2:         SAME POS FOR 11-12 AS 10;

!

    linenum:       12.000
    sequence_1:    ^
    targname:      #
    config:        PC
    opmode:        IMAGE
    aperture:      PC6
    sp_element:    F336W
    num_exp:       1
    time_per_exp:  800S
    fluxnum_1:     #
    priority:      #
    param_1:       PRE-FLASH=YES,
    param_2:       CR-SPLIT=NO

!

    linenum:       15.000
    sequence_1:    USE
    sequence_2:    BQL
    targname:      M13-123-NORTH
    priority:      2
    req_1:         CYCLE 3 / 15-21

!

    linenum:       16.000
    sequence_1:    USE
    sequence_2:    FQL
    targname:      M13-400-SOUTH
    priority:      2
    req_1:         GROUP 15-16 WITHIN 10D

!

    linenum:       17.000
    sequence_1:    USE
    sequence_2:    FQL
    targname:      NGC6752-300-PA330
    priority:      1

!

    linenum:       18.000
    sequence_1:    USE
    sequence_2:    BQL
    targname:      NGC6752-105-NORTH
    priority:      1

!

    linenum:       20.000
    sequence_1:    USE
    sequence_2:    NSEQ
    targname:      M15
    priority:      1

!

    linenum:       21.000
    sequence_1:    USE
    sequence_2:    NSEQ
    targname:      M92
    priority:      2

!

    linenum:       313.000
    sequence_1:    USE
    sequence_2:    BQL
    targname:      M3-105-NORTH
    priority:      9
    req_1:         CYCLE 4 / 313-322;
    req_2:         COND IF TAC OK / 313-322

!

    linenum:       314.000
    sequence_1:    USE
    sequence_2:    FQL
    targname:      M3-300-NORTH
    priority:      9

!

    linenum:       319.000
    sequence_1:    USE
    sequence_2:    NSEQ
    targname:      M3
    priority:      9

!

    linenum:       322.000
    sequence_1:    USE
    sequence_2:    NSEQ
    targname:      NGC6752
    priority:      9

!
! end of exposure logsheet

! No scan data records found