!   $Id: 5640,v 2.1 1994/07/27 19:59:47 pepsa Exp $
coverpage:
  title_1:         CYCLE 4 DD HST OBSERVATIONS OF COMET SHOEMAKER-LEVY (1993E)
    title_2:       FOR MAY 1994
    sci_cat:       SOLAR SYSTEM
    sci_subcat:    COMETS
    proposal_for:  GO/DD
    pi_fname:      HAROLD
    pi_mi:         A.
    pi_lname:      WEAVER
    pi_inst:       STSCI
    pi_country:    USA
    hours_pri:     3.5
    num_pri:       1
    wf_pc:         Y
    fos:           N
    realtime:      N
    time_crit:     Y
    funds_length:  12
    off_fname:     HERVEY
    off_mi:        S.
    off_lname:     STOCKMAN
    off_title:     DEPUTY DIRECTOR
    off_inst:      3470
    off_addr_1:    SPACE TELESCOPE SCIENCE INSTITUTE
    off_addr_2:    3700 SAN MARTIN DRIVE
    off_city:      BALTIMORE
    off_state:     MD
    off_zip:       21218
    off_country:   USA
abstract:
    line_1: Comet Shoemaker-Levy (1993e) is a comet that has recently broken
    line_2: up into many fragments, apparently somewhere in the vicinity
    line_3: of Jupiter. Ground-based observations reveal a string of sub-nuclei
    line_4: spaced over a distance of about one arcminute. HST observations
    line_5: of this object with the WFPC-2 should reveal a fascinating spatial
    line_6: morphology that is more detailed than any images obtained from
    line_7: ground-based telescopes. Most importantly, WFPC-2 images of 1993e
    line_8: should allow us to refine the nuclear size estimates that were
    line_9: originally estimated from WFPC-1 HST observations in July 1993.
    line_10:This proposal is for the May 1994 observations.
general_form_proposers:
  lname:           WEAVER
    fname:         HAROLD
    title:         PI
    mi:            A.
    inst:          STSCI
    country:       USA
general_form_text:
  question:        3
    section:       1
    line_1: The program consists of three visits to the comet (one orbit per
    line_2: visit) and one visit to Jupiter (one orbit.) In principle, GS
    line_3: Handoffs could be used for the three comet observations, but
    line_4: I don't think I want to take the risk of trying to use that
    line_5: new capability for these observations.
    line_6: If possible, please schedule all four orbits consecutively
    line_7: in the order given below. Certainly I want all the observations
    line_8: completed within one day. If the CML constraint on the Jupiter
    line_9: observations presents scheduling difficulties, then simply
    line_10:drop this constraint. I put this constraint in to capture the
    line_11:the part of Jupiter where most of the large impacts occur.
    line_12:Similarly, I'm fairly flexible on the ROLL constraint. I just
    line_13:don't want nominal roll for the comet observations because
    line_14:then the train will lie nearly along a column in WF4.
  question:        3
    section:       2
    line_1:        SU 01:
    line_2:        orbit 1: Two 800 sec WF3-4 images of SL-17 (E)
    line_3:        SU 02:
    line_4:        orbit 2: Two 800 sec WF3-4 images of SL-11 (L)
    line_5:        SU 03:
    line_6:        orbit 3: Two 800 sec WF3-4 images of SL-5 (S)
    line_7:        SU 04:
    line_8:        orbit 4: Many WF3 images of Jupiter
  question:        3
    section:       3
    line_1:
  question:        4
    section:       1
    line_1: HST observations of Comet Shoemaker-Levy (1993e) should provide
    line_2: better detail on the break-up of this object than is available
    line_3: from any other source.
  question:        4
    section:       2
    line_1:
  question:        4
    section:       3
    line_1:
  question:        5
    section:       1
    line_1:Please try to execute these observations during the week of 5/16 (sms 136)
    line_2:if possible, or during the week of 5/23 (sms 143) at the latest. I won't
    line_3:build this timing into the proposal itself but will instead leave it to
    line_4:the MT Group to check this requirement.
    line_5:
    line_6:
  question:        8
    section:       1
    line_1:
  question:        9
    section:       1
line_1:ID no. 3064: HST Observations of Comet Levy (1990c)
line_2:(A'Hearn, Arpigny, and Feldman are Co-Is), an imaging-only
line_3:program that is only peripherally related to the
line_4:current program.
line_5:
line_6:ID no. 2481: HST Observations of Periodic Comets (A'Hearn, Arpigny,
line_7:and Feldman are Co-Is), only peripherally related to this program.
line_8:
line_9:ID no. 2483: The Volatile Composition of New Comets (A'Hearn, Arpigny,
line_10:and Feldman are Co-Is), only peripherally related to this program.
line_11:
line_12:ID no. 2442: Cometary Parent Molecules, P.D. Feldman, PI (A'Hearn
line_13:and Weaver are Co-Is), only peripherally related to this program.
line_14:
line_15:Cycle 2 program:
line_16:ID no. 3707: HST Observations of Periodic Comets (A'Hearn, Arpigny,
line_17:and Feldman are Co-Is), only peripherally related to this program.
 QUESTION:  9
  SECTION:  2
line_1:ID no. 3064: Two sets of WFC images of comet Levy were obtained 6.5
line_2:hours apart on 27 September 1990 in order to investigate its temporal
line_3:variability. An arc of large grains was observed propagating
line_4:sunward with a projected velocity of 0.16 km/sec.
line_5:
line_6:ID no. 2481: P/Hartley 2 was successfully observed in late 9/91
line_7:These observations produced the first detection of CO Cameron bands in
line_8:comets. This emission is essentially a unique tracer of the CO2
line_9:abundance in comets. Additionally we obtained a beautiful spectrum
line_10:of the comet covering the entire spectral range 1200-6800 A, from
line_11:which we are compiling (still in progress) an inventory of volatiles
line_12:in that comet.
line_13:
line_14:ID no. 2483: Comet Shoemaker-Levy (1991a1) was successfully observed
line_15:in July 1992. Unfortunately, the comet was not as bright as we had
line_16:hoped, but we obtained data of comparable (slightly higher) quality
line_17:to that already in hand from P/Hartley 2. We definitely detected
line_18:the CO Cameron bands again, but it is much too early to say anything
line_19:more at this time.
line_20:
line_21:ID no. 2442: Comet Shoemaker-Levy (1991a1) was successfully observed
line_22:in July 1992, but it is too early to say anything more at this time.
 QUESTION:  9
  SECTION:  3
line_1:ID no. 3064: Inner Coma Imaging of Comet Levy (1990c) with the Hubble
line_2:Space Telescope, H. A. Weaver, M. F. A'Hearn, P. D. Feldman,
line_3:C. Arpigny, W. A. Baum, J. C. Brandt, R. M. Light and
line_4:J. A. Westphal,Icarus}, v. 97, p. 85, 1992.
line_5:
line_6:ID no. 2481: Probing the Nature of Comets with HST, H. A. Weaver
line_7:and P. D. Feldman, in "Science with the Hubble Space Telescope",
line_8:ESA-NASA CP, in press.
line_9:
line_10:Presentations on both the above programs have been made at several
line_11:scientific meetings, including the annual DPS meetings in 1990
line_12:(for 3064), 1991 (for 2481), and 1992 (2481 and 2483). A paper
line_13:on our detection of CO Cameron band emission in P/Hartley 2
line_14:will be submitted to a refereed journal shortly.
 QUESTION:   10
  SECTION:    1
line_1:The STScI has excellent data-analysis capabilities and also maintains
line_2:a pool of Science Data Analysts (SDAs) that are available to its staff.
general_form_address:
  lname:           Weaver
    fname:         Harold
    mi:            A
    title:         Dr.
    category:      PI
    inst:          3470
    addr_1:        3700 San Martin Drive
    city:          Baltimore
    state:         MD
    zip:           21218
    country:       USA
    phone:         410-338-5004
  lname:           Weaver
    fname:         Harold
    mi:            A.
    title:         Dr.
    category:      PI
    inst:          STScI
    addr_1:        3700 San Martin Drive
    addr_2:        Baltimore, MD 21218
    addr_3:        USA
    city:          Baltimore
    state:         MD
    zip:           21218
    country:       USA
    phone:         410-516-8619
solar_system_targets:
  targnum:         1
    name_1:        SL-17
    descr_1:       COMET SHOEMAKER-LEVY 1993E-17
    lev1_1:        FILE = SL-17,
    lev1_2:        ACQ = 3
    comment_1:     THIS TARGET IS FOR ORBIT
    comment_2:     NUMBER 1 ON 1993E.
    comment_3:     THE LETTER DESIGNATION IS E.
    fluxnum_1:     1
    fluxval_1:     SURF(V) = 24 +/- 1
    fluxnum_2:     2
    fluxval_2:     SIZE = 0.1
  targnum:         2
    name_1:        SL-11
    descr_1:       COMET SHOEMAKER-LEVY 1993E-11
    lev1_1:        FILE = SL-11,
    lev1_2:        ACQ = 3
    comment_1:     THIS TARGET IS FOR ORBIT
    comment_2:     NUMBER 2 ON 1993E.
    comment_3:     THE LETTER DESIGNATION IS L.
    fluxnum_1:     1
    fluxval_1:     SURF(V) = 24 +/- 1
    fluxnum_2:     2
    fluxval_2:     SIZE = 0.1
  targnum:         3
    name_1:        SL-5
    descr_1:       COMET SHOEMAKER-LEVY 1993E-5
    lev1_1:        FILE = SL-5,
    lev1_2:        ACQ = 3
    comment_1:     THIS TARGET IS FOR ORBIT
    comment_2:     NUMBER 3 OF 1993E.
    comment_3:     THE LETTER DESIGNATION IS S.
    fluxnum_1:     1
    fluxval_1:     SURF(V) = 24 +/- 1
    fluxnum_2:     2
    fluxval_2:     SIZE = 0.1
  targnum:         4
    name_1:        JUPITER
    descr_1:       PLANET JUPITER
    lev1_1:        STD=JUPITER,
    lev1_2:        ACQ = 3
    wind_1:        CML OF JUPITER FROM EARTH BETWEEN 0 80
    comment_1:     I WANT A CML OF ABOUT 40 DEG
    comment_2:     BECAUSE THAT IS WHERE MOST OF THE
    comment_3:     LARGE IMPACTS WILL OCCUR.
    fluxnum_1:     1
    fluxval_1:     SURF(V) = 5 +/- 1
    fluxnum_2:     2
    fluxval_2:     SIZE = 1
exposure_logsheet:
    linenum:       1.100
    targname:      SL-17
    config:        WFPC2
    opmode:        IMAGE
    aperture:      WFALL-FIX
    sp_element:    F702W
    num_exp:       1
    time_per_exp:  800 S
    param_1:       CR-SPLIT=NO
    param_2:       READ=3+4
    req_1:         CYCLE 4 / 1.1-4.12;
    req_2:         SEQ 1.1-3.2 NO GAP;
    req_3:         ORIENT +10D +/- 5D FROM
    req_4:         NOMINAL;
    req_5:         POS TARG 0,-20
    comment_1:     1ST ORBIT, 1ST IMAGE FOR SL-17.
    comment_2:     ALL 1993E OBSERVATIONS SHOULD BE
    comment_3:     MADE AT THE SAME HST ROLL ANGLE.
    comment_4:     WE WOULD LIKE TO BE OFF NOMINAL
    comment_5:     ROLL BY ABOUT 10 DEG.
    linenum:       1.200
    targname:      SL-17
    config:        WFPC2
    opmode:        IMAGE
    aperture:      WFALL-FIX
    sp_element:    F702W
    num_exp:       1
    time_per_exp:  800 S
    param_1:       CR-SPLIT=NO
    param_2:       READ=3+4
    req_1:         SAME ORIENT FOR 1.2-3.2 AS 1.1;
    req_2:         POS TARG 0,-20
    comment_1:     1ST ORBIT, 2ND IMAGE FOR SL-17
    linenum:       2.100
    targname:      SL-11
    config:        WFPC2
    opmode:        IMAGE
    aperture:      WFALL-FIX
    sp_element:    F702W
    num_exp:       1
    time_per_exp:  800 S
    param_1:       CR-SPLIT=NO
    param_2:       READ=3+4
    req_1:         POS TARG -20,-20
    comment_1:     2ND ORBIT, 1ST IMAGE FOR SL-11
    linenum:       2.200
    targname:      SL-11
    config:        WFPC2
    opmode:        IMAGE
    aperture:      WFALL-FIX
    sp_element:    F702W
    num_exp:       1
    time_per_exp:  800 S
    param_1:       CR-SPLIT=NO
    param_2:       READ=3+4
    req_1:         POS TARG -20,-20
    comment_1:     2ND ORBIT, 2ND IMAGE FOR SL-11
    linenum:       3.100
    targname:      SL-5
    config:        WFPC2
    opmode:        IMAGE
    aperture:      WFALL-FIX
    sp_element:    F702W
    num_exp:       1
    time_per_exp:  800 S
    param_1:       CR-SPLIT=NO
    param_2:       READ=3+4
    req_1:         POS TARG 0,-20
    comment_1:     3RD ORBIT, 1ST IMAGE FOR SL-5
    linenum:       3.200
    targname:      SL-5
    config:        WFPC2
    opmode:        IMAGE
    aperture:      WFALL-FIX
    sp_element:    F702W
    num_exp:       1
    time_per_exp:  800 S
    param_1:       CR-SPLIT=NO
    param_2:       READ=3+4
    req_1:         POS TARG 0,-20
    comment_1:     3RD ORBIT, 2ND IMAGE FOR SL5
    linenum:       4.010
    targname:      JUPITER
    config:        WFPC2
    opmode:        IMAGE
    aperture:      WF3-FIX
    sp_element:    F673N
    num_exp:       1
    time_per_exp:  0.5 S
    param_1:       CR-SPLIT=NO
    param_2:       READ=3
    req_1:         SEQ 4.01-4.12 NO GAP;
    comment_1:     RED OF RGB
    comment_2:     BEGIN JUPITER MAP (4TH ORBIT)
    linenum:       4.020
    targname:      JUPITER
    config:        WFPC2
    opmode:        IMAGE
    aperture:      WF3-FIX
    sp_element:    F673N
    num_exp:       1
    time_per_exp:  0.5 S
    param_1:       CR-SPLIT=NO
    param_2:       READ=3
    req_1:         SAME ORIENT FOR 4.02-4.12 AS 4.01;
    comment_1:     RED OF RGB
    linenum:       4.030
    targname:      JUPITER
    config:        WFPC2
    opmode:        IMAGE
    aperture:      WF3-FIX
    sp_element:    F588N
    num_exp:       1
    time_per_exp:  0.5 S
    param_1:       CR-SPLIT=NO
    param_2:       READ=3
    comment_1:     GREEN OF RGB
    linenum:       4.040
    targname:      JUPITER
    config:        WFPC2
    opmode:        IMAGE
    aperture:      WF3-FIX
    sp_element:    F588N
    num_exp:       1
    time_per_exp:  0.5 S
    param_1:       CR-SPLIT=NO
    param_2:       READ=3
    comment_1:     GREEN OF RGB
    linenum:       4.050
    targname:      JUPITER
    config:        WFPC2
    opmode:        IMAGE
    aperture:      WF3-FIX
    sp_element:    F439W
    num_exp:       1
    time_per_exp:  0.23 S
    param_1:       CR-SPLIT=NO
    param_2:       READ=3
    comment_1:     BLUE OF RGB
    linenum:       4.060
    targname:      JUPITER
    config:        WFPC2
    opmode:        IMAGE
    aperture:      WF3-FIX
    sp_element:    F439W
    num_exp:       1
    time_per_exp:  0.23 S
    param_1:       CR-SPLIT=NO
    param_2:       READ=3
    comment_1:     BLUE OF RGB
    linenum:       4.070
    targname:      JUPITER
    config:        WFPC2
    opmode:        IMAGE
    aperture:      WF3-FIX
    sp_element:    F218W
    num_exp:       1
    time_per_exp:  80 S
    param_1:       CR-SPLIT=NO
    param_2:       READ=3
    linenum:       4.080
    targname:      JUPITER
    config:        WFPC2
    opmode:        IMAGE
    aperture:      WF3-FIX
    sp_element:    F255W
    num_exp:       1
    time_per_exp:  30 S
    param_1:       CR-SPLIT=NO
    param_2:       READ=3
    linenum:       4.090
    targname:      JUPITER
    config:        WFPC2
    opmode:        IMAGE
    aperture:      WF3-FIX
    sp_element:    F336W
    num_exp:       1
    time_per_exp:  1 S
    param_1:       CR-SPLIT=NO
    param_2:       READ=3
    linenum:       4.110
    targname:      JUPITER
    config:        WFPC2
    opmode:        IMAGE
    aperture:      WF3-FIX
    sp_element:    F410M
    num_exp:       1
    time_per_exp:  1 S
    param_1:       CR-SPLIT=NO
    param_2:       READ=3
    linenum:       4.120
    targname:      JUPITER
    config:        WFPC2
    opmode:        IMAGE
    aperture:      WF3-FIX
    sp_element:    F547M
    num_exp:       1
    time_per_exp:  0.11 S
    param_1:       CR-SPLIT=NO
    param_2:       READ=3
!~~~RPSS~~~,P4349,psl1993e-dd-may94.prop,30-MAR-1994 14:12