!   $Id: 5653,v 2.1 1994/07/27 20:07:45 pepsa Exp $
coverpage:
  title_1:       CYCLE 4 DD HST OBSERVATIONS OF COMET SHOEMAKER-LEVY (1993E)
 title_2:  FOR JUNE 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:     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 June 1994 observations.
general_form_proposers:
  lname:           WEAVER
    fname:         HAROLD
    title:         PI
    mi:            A.
    inst:          STSCI
    country:       USA
general_form_address:
lname: Weaver
fname: Harold
Title: Dr.
MI:    A
Category: PI
Inst:  3470
addr_1: 3700 San Martin Drive
city:   Baltimore
state:  MD
zip:    21218
country: USA
phone:  410-338-5004
GENERAL_FORM_TEXT:
 QUESTION:3
  SECTION: 1
line_1: The program consists of three separate visits to the comet with
line_2: all three being devoted to imaging with the WFPC-2.
line_3: It is DESIRABLE that the entire program be scheduled as
line_4: close together in time as possible.
line_5: In order to avoid the train from lining up with a CCD column,
line_6: and also to capture as many nuclei as possible, we request
line_7: the maximum possible positive off-nominal roll angle. In any
line_8: event, ALL observations should be made at the same orientation.
line_9: The orbit-by-orbit activities for this program are listed below.
line_10: If possible, please attempt to schedule these orbits in the
line_11: order given here.
 QUESTION:3
  SECTION: 2
line_1:  orbit 1: Two 800 sec PC images of SL-7 (Q)
line_2:  orbit 2: Two 1000 sec PCC images of SL-7 (Q)
line_3:  orbit 3: Two 800 sec PC images of SL-15
line_4:  orbit 4: Two 1000 sec PC images of SL-15
line_5:  orbit 5: Two 800 sec PC images of SL-5
line_6:  orbit 6: Two 1000 sec PC images of SL-5
 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
 QUESTION: 4
  SECTION: 3
 QUESTION:  5
  SECTION:  1
 QUESTION:     8
  SECTION:     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.
line_3:However, SDA support for our program can only be assured if we are
line_4:allocated money to cover the SDA's salary.
line_5:
line_6:The other institutions co-sponsoring this program also have excellent
line_7:data analysis facilities and access to graduate students and research
line_8:assistants.  However, funds must be provided by this program in order
line_9:for the Co-Is to utilize these resources.
GENERAL_FORM_ADDRESS:
    LNAME: Weaver
    FNAME: Harold
    TITLE: Dr.
    MI:    A.
    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:     410-338-5004
SOLAR_SYSTEM_TARGETS:
  TARGNUM: 1
    NAME_1: SL-7
    DESCR_1: COMET SHOEMAKER-LEVY 1993E-7
    LEV1_1: FILE = SL-7,
    LEV1_2:     ACQ = 3
    fluxnum_1:     1
    fluxval_1:     SURF(V) = 24 +/- 1
    fluxnum_2:     2
    fluxval_2:     SIZE = 0.1
    comment_1:     THIS TARGET IS THE GANG OF
    comment_2:     FOUR OF COMET SL 1993E.
    comment_3:     THE LETTER DESIGNATION IS Q.
  TARGNUM: 2
    NAME_1: SL-15
    DESCR_1: COMET SHOEMAKER-LEVY 1993E-15
    LEV1_1: FILE = SL-15,
    LEV1_2:     ACQ = 3
    fluxnum_1:     1
    fluxval_1:     SURF(V) = 24 +/- 1
    fluxnum_2:     2
    fluxval_2:     SIZE = 0.1
    comment_1:     THIS TARGET IS THE BRIGHTEST
    comment_2:     NUCLEUS OF COMET SL 1993E.
    comment_3:     THE LETTER DESIGNATION IS G.
  TARGNUM: 3
    NAME_1: SL-5
    DESCR_1: COMET SHOEMAKER-LEVY 1993E-5
    LEV1_1: FILE = SL-5,
    LEV1_2:     ACQ = 3
    fluxnum_1:     1
    fluxval_1:     SURF(V) = 24 +/- 1
    fluxnum_2:     2
    fluxval_2:     SIZE = 0.1
    comment_1:     THIS TARGET IS A BRIGHT
    comment_2:     NUCLEUS OF COMET SL 1993E.
    comment_3:     THAT MAY BE FRAGMENTING.
    comment_4:     THE LETTER DESIGNATION IS S.
exposure_logsheet:
    linenum:       1.100
    targname:      SL-7
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1
    sp_element:    F702W
    param_1:       CR-SPLIT=NO
    num_exp:       1
    time_per_exp:  800 S
    req_1:         CYCLE 4 / 1.1-3.4;
    req_2:         SEQ 1.1-1.4 NO GAP;
    req_3:         ORIENT +20D +/- 20D FROM
    req_4:         NOMINAL / 1.1-3.4;
    comment_1:     1st orbit, 1st image for SL-7.
    comment_2:     All WFPC2 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 as large a positive
    comment_6:     value as possible.
    linenum:       1.200
    targname:      SL-7
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1
    sp_element:    F702W
    param_1:       CR-SPLIT=NO
    num_exp:       1
    time_per_exp:  800 S
    req_1:         SAME ORIENT FOR 1.2-3.4 AS 1.1;
    comment_1:     1st orbit, 2nd image for SL-7
    linenum:       1.300
    targname:      SL-7
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1
    sp_element:    F702W
    param_1:       CR-SPLIT=NO
    num_exp:       1
    time_per_exp:  1000 S
    comment_1:     2nd orbit, 1st image for SL-7
    linenum:       1.400
    targname:      SL-7
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1
    sp_element:    F702W
    param_1:       CR-SPLIT=NO
    num_exp:       1
    time_per_exp:  1000 S
    comment_1:     2nd orbit, 2nd image for SL-7
    linenum:       2.100
    targname:      SL-15
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1
    sp_element:    F702W
    param_1:       CR-SPLIT=NO
    num_exp:       1
    time_per_exp:  800 S
    req_1:         SEQ 2.1-2.4 NO GAP;
    comment_1:     1st orbit, 1st image for SL-15
    linenum:       2.200
    targname:      SL-15
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1
    sp_element:    F702W
    param_1:       CR-SPLIT=NO
    num_exp:       1
    time_per_exp:  800 S
    comment_1:     1st orbit, 2nd image for SL-15
    linenum:       2.300
    targname:      SL-15
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1
    sp_element:    F702W
    param_1:       CR-SPLIT=NO
    num_exp:       1
    time_per_exp:  1000 S
    comment_1:     2nd orbit, 1st image for SL-15
    linenum:       2.400
    targname:      SL-15
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1
    sp_element:    F702W
    param_1:       CR-SPLIT=NO
    num_exp:       1
    time_per_exp:  1000 S
    comment_1:     2nd orbit, 2nd image for SL-15
    linenum:       3.100
    targname:      SL-5
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1
    sp_element:    F702W
    param_1:       CR-SPLIT=NO
    num_exp:       1
    time_per_exp:  800 S
    req_1:         SEQ 3.1-3.4 NO GAP;
    comment_1:     1st orbit, 1st image for SL-5
    linenum:       3.200
    targname:      SL-5
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1
    sp_element:    F702W
    param_1:       CR-SPLIT=NO
    num_exp:       1
    time_per_exp:  800 S
    comment_1:     1st orbit, 2nd image for SL5
    linenum:       3.300
    targname:      SL-5
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1
    sp_element:    F702W
    param_1:       CR-SPLIT=NO
    num_exp:       1
    time_per_exp:  1000 S
    comment_1:     2nd orbit, 1st image for SL-5
    linenum:       3.400
    targname:      SL-5
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1
    sp_element:    F702W
    param_1:       CR-SPLIT=NO
    num_exp:       1
    time_per_exp:  1000 S
    comment_1:     2nd orbit, 2nd image for SL-5
!~~~RPSS~~~,P4349,psl1993e-dd-june94.prop,28-APR-1994 21:16