!   $Id: 5238,v 4.1 1994/07/27 16:04:46 pepsa Exp $

coverpage:

  title_1:         ASTEROIDS (WC16):  CYCLE 4
    sci_cat:       SOLAR SYSTEM
    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) 395-4900
    keywords_1:    ASTEROIDS, SATELLITES
    hours_pri:     0.65
    num_pri:       2
    wf_pc:         Y
    pi_position:   PROF, PLANETARY SCI
! end of coverpage

abstract:

    line_1:        There have been a number of visual and photo-electric observations of secondary
    line_2:        events associated with occulations of stars by minor planets. These
    line_3:        observations are suggestive of satellites for those minor planets. If one
    line_4:        minor planet satellite is found, then it is expected that many minor planets
    line_5:        would have satellites, unless there is a feature in the process of formation
    line_6:        and evolution of the minor planets which favors uniqueness.
    line_7:        There are optical, radar and light curve observations indicative of binary
    line_8:        asteroids.  The negative reports have primarily been for larger asteroids, so
    line_9:        it appears that searches should concentrate on average type asteroids.
    line_10:       In addition to the significance of satellites of minor planets to the theory of
    line_11:       the formation of the solar system, the discovery of satellites and the
    line_12:       determination of their periods will permit the determination of the masses of
    line_13:       the minor planets. This is the only way to determine accurate values for the
    line_14:       masses and hence the densities and compositions.
    line_15:       These observations will be used to search for direct images of satellites
    line_16:       brighter than 22nd magnitude around several asteroids where unconfirmed
    line_17:       observations of satellites have been reported.

!
! 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:        The observation of each asteroid should be made near the time when it is at
    line_2:        opposition. The ST should track with the asteroid, so it and any possible
    line_3:        satellites would be point images and the stars would be trailed.
    line_4:        Three successive exposures should be taken of each asteroid.

!

  question:        13
    section:       1
    line_1:        Since observations of occultations of stars by asteroids have suggested the
    line_2:        existence of satellites of asteroids, a selected list of asteroids will be
    line_3:        observed to search for direct images of satellites.

!
!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
    phone:         818-395-4900

!

  lname:           SEIDELMANN
    fname:         P.
    mi:            K.
    category:      CON
    inst:          US NAVAL OBSERVATORY
    addr_1:        ORBITAL MECHANICS DEPARTMENT
    city:          WASHINGTON
    state:         DC
    zip:           20392
    country:       USA
    phone:         (202) 653-1545

!

  lname:           DANIELSON
    fname:         ED
    category:      CON
    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
    phone:         818-395-4900

!

  lname:           FABER
    fname:         SANDRA
    mi:            M.
    category:      CON
    inst:          UC SANTA CRUZ - LICK OBSERVATORY
    addr_1:        NATURAL SCIENCE II
    city:          SANTA CRUZ
    state:         CA
    zip:           95064
    country:       USA
    phone:         408-459-2944

!
! end of general_form_address records

! No fixed target records found

solar_system_targets:

  targnum:         1
    name_1:        18-MELPOMENE
    descr_1:       ASTEROID 18
    lev1_1:        STD=18(MELPOMENE)

!

  targnum:         2
    name_1:        532-HERCULINA
    descr_1:       ASTEROID 532
    lev1_1:        STD=532(HERCULINA)

!

  targnum:         3
    name_1:        49-PALAS
    descr_1:       ASTEROID 49
    lev1_1:        STD=49(PALAS)

!

  targnum:         4
    name_1:        9-METIS
    descr_1:       ASTEROID 9
    lev1_1:        STD=9(METIS)

!

  targnum:         5
    name_1:        171-OPHELIA
    descr_1:       ASTEROID 171
    lev1_1:        STD=171(OPHELIA)

!

  targnum:         6
    name_1:        216-KLEOPATRA
    descr_1:       ASTEROID 216
    lev1_1:        STD=216(KLEOPATRA)

!

  targnum:         7
    name_1:        146-LUCINA
    descr_1:       ASTEROID 146
    lev1_1:        STD=146(LUCINA)

!
! end of solar system targets

! No generic target records found

exposure_logsheet:

    linenum:       1.000
    sequence_1:    DEFINE
    sequence_2:    AST2
    targname:      #
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1
    sp_element:    F555W
    num_exp:       3
    time_per_exp:  3.5S
    priority:      #
    param_2:       CR-SPLIT=NO,
    param_3:       CLOCKS=YES
    comment_1:     CYCLE 4-5 VERSION;
    comment_2:     6/4/93  KAS/RML

!

    linenum:       4.000
    sequence_1:    USE
    sequence_2:    AST2
    targname:      18-MELPOMENE
    time_per_exp:  X1
    priority:      1
    req_1:         CYCLE 4 / 4-5;
    req_2:         AT 24-APR-1994 +/- 30D;
    comment_1:     WITHIN 20D OF OPPOSITION;

!

    linenum:       5.000
    sequence_1:    USE AST2
    targname:      532-HERCULINA
    time_per_exp:  X1
    priority:      1
    req_1:         AT 13-NOV-1994 +/- 30D;
    comment_1:     WITHIN 20D OF OPPOSITION

!
! end of exposure logsheet

! No scan data records found