!  File:  1130C.PROP
!  Database:  PEPDB
!  Date:  16-FEB-1994:02:53:11

coverpage:

  title_1:         SATURN B-RING SPOKES (WF/PC-26):
    title_2:       CYCLE 3 AND FUTURE-CYCLE CONTINUATION
    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) 356-4900
    keywords_1:    SATURN, B-RING, SPOKES
    hours_pri:     1.00
    num_pri:       1
    pi_position:   PROFESSOR OF PLANETA
! end of coverpage

abstract:

    line_1:        Voyager S/C detected some low contrast features in the B-ring of Saturn which
    line_2:        were dubbed 'spokes'. The origin, evolution, composition and dynamics of the
    line_3:        spokes are not well understood. The objective of these observations is to
    line_4:        determine the photometric properties of the spokes as a function of time and
    line_5:        other external circumstances, such as solar elevation, and Saturn phase. The
    line_6:        proposed observational sequence includes multispectral imaging over a 12 hour
    line_7:        period.

!
! 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:        2
    section:       1
    line_1:        Voyager S/C detected some low contrast features in the B-ring of Saturn which
    line_2:        were dubbed `spokes'. The origin, evolution, composition and dynamics of the
    line_3:        spokes are not well understood. The objective of these observations is to
    line_4:        determine the photometric properties of the spokes as a function of time and
    line_5:        other external circumstances, such as solar elevation, and Saturn phase. The
    line_6:        proposed observational sequence includes multispectral imaging over a 12 hour
    line_7:        period.

!

  question:        3
    section:       1
    line_1:        Complete sets to be obtained in Cycle 9.

!

  question:        13
    section:       1
    line_1:        Voyager S/C detected some low contrast features in the B-ring of Saturn which
    line_2:        were dubbed 'spokes'. The origin, evolution, composition and dynamics of the
    line_3:        spokes are not well understood. The objective of lthese observations is to
    line_4:        determined the photometric properties of the spokes as a function of time and
    line_5:        other external circumstances, such as solar elevation, and Saturn phase. The
    line_6:        proposed observational sequence includes multispectral imaging over a 12 hour
    line_7:        period.

!
!end of general form text

general_form_address:

  lname:           GUNN
    fname:         JAMES
    mi:            E.
    category:      CON
    inst:          PRINCETON UNIVERSITY
    addr_1:        ASTROPHYSICAL SCIENCE
    addr_2:        PEYTON HALL
    city:          PRINCETON
    state:         NJ
    zip:           08540
    country:       USA
    phone:         (609) 452-3802

!

  lname:           FABER
    fname:         SANDRA
    mi:            M.
    category:      CON
    inst:          UC SANTA CRUZ - LICK OBSERVATORY
    addr_1:        NATURAL SCIENCE II, BLDG. 160
    city:          SANTA CRUZ
    state:         CA
    zip:           95064
    country:       USA
    phone:         (408) 429-4944

!

  lname:           WESTPHAL
    fname:         JAMES
    mi:            A.
    title:         PROF.
    category:      PI
    inst:          CALTECH
    addr_1:        M/S 170-25
    addr_2:        DIVISON OF GEOLOGICAL
    addr_3:        & PLANETARY SCIENCES
    city:          PASADENA
    state:         CA
    zip:           91125
    country:       USA
    phone:         (818) 356-4900

!

  lname:           DANIELSON
    fname:         G. EDWARD
    category:      CON
    inst:          CALTECH
    addr_1:        M/S 170-25
    addr_2:        DIVISION OF GEOLOGICAL & PLANETARY SCIENCES
    city:          PASADENA
    state:         CA
    zip:           91125
    country:       USA
    phone:         (818) 356-4900

!
! end of general_form_address records

! No fixed target records found

solar_system_targets:

  targnum:         1
    name_1:        SATURNB-RING
    descr_1:       RING SATURN
    lev1_1:        STD = SATURN
    lev2_1:        TYPE = TORUS,
    lev2_2:        LONG = 0,
    lev2_3:        LAT = +90,
    lev2_4:        RAD = 90000,
    lev2_5:        POLE_LAT = +90,
    lev2_6:        POLE_LONG = 0
    comment_1:     LOW CONTRAST SPOKES IN SATURN'S B-R

!

  targnum:         2
    name_1:        SATURN
    descr_1:       PLANET SATURN
    lev1_1:        STD = SATURN

!
! end of solar system targets

! No generic target records found

exposure_logsheet:

    linenum:       1.000
    sequence_1:    DEFINE
    sequence_2:    SBRING
    targname:      #
    config:        PC
    opmode:        IMAGE
    aperture:      PC6
    sp_element:    F336W
    num_exp:       1
    time_per_exp:  20S
    priority:      #
    param_1:       CR-SPLIT=NO,PRE-FLASH=NO
    req_1:         SEQ 1-4 NO GAP;
    comment_1:     CYCLE 3-9 VERSION
    comment_2:     TRL/RML 4/29/91  16:02.

!

    linenum:       2.000
    sequence_1:    ^
    targname:      ^
    config:        ^
    opmode:        ^
    aperture:      ^
    sp_element:    F439W
    num_exp:       ^
    time_per_exp:  2S
    priority:      ^
    param_1:       ^

!

    linenum:       3.000
    sequence_1:    ^
    targname:      ^
    config:        ^
    opmode:        ^
    aperture:      ^
    sp_element:    F569W
    num_exp:       ^
    time_per_exp:  0.24S
    priority:      ^
    param_1:       ^

!

    linenum:       4.000
    sequence_1:    ^
    targname:      ^
    config:        ^
    opmode:        ^
    aperture:      ^
    sp_element:    F791W
    num_exp:       ^
    time_per_exp:  0.24S
    priority:      ^
    param_1:       ^

!

    linenum:       5.000
    sequence_1:    USE
    sequence_2:    SBRING
    targname:      SATURNB-RING
    priority:      2
    req_1:         REPEAT 5 EVERY 180M +/- 10M FOR
    req_2:         3 MORE TIMES;
    req_3:         CYCLE 3 / 5-6;
    comment_1:     REQ:  AT 7-AUG-1992 +/- 30D;

!

    linenum:       6.000
    targname:      SATURN
    config:        PC
    opmode:        IMAGE
    aperture:      ALL
    sp_element:    F889N
    num_exp:       1
    time_per_exp:  50S
    priority:      3
    param_1:       PRE-FLASH=YES,
    param_2:       CR-SPLIT=NO
    req_1:         REPEAT 6 EVERY 96M +/- 10M
    req_2:         FOR 1 MORE TIME;
    comment_1:     REQ: AT 27-JUL-1991 +/- 30D;

!
! end of exposure logsheet

! No scan data records found