!  File:  3253C.PROP
!  Database:  PEPDB
!  Date:  19-FEB-1994:00:03:39

coverpage:

  title_1:         OPTICAL AND ULTRAVIOLET OBSERVATIONS OF RADIO PULSARS
    sci_cat:       STELLAR ASTROPHYSICS
    proposal_for:  GTO/HSP
    cont_id:       1101
    pi_fname:      ROBERT
    pi_mi:         C.
    pi_lname:      BLESS
    pi_inst:       WISCONSIN, UNIVERSITY OF
    pi_country:    USA
    pi_phone:      608-262-1715
    keywords_1:    PULSARS, NEUTRON STARS, SUPERNOVAE
    hours_pri:     18.65
    num_pri:       7
! end of coverpage

abstract:

    line_1:        In spite of extensive efforts only two definite
    line_2:        (Crab and Vela) and one probable (in SNR 0540-693)
    line_3:        radio pulsars have been detected at optical
    line_4:        wavelengths. Only the Crab Pulsar has been observed
    line_5:        in the ultraviolet. Most efforts at modeling the
    line_6:        optical emission mechanism are constrained only by
    line_7:        the Crab Pulsar observations. To provide better
    line_8:        model constraints, visual and ultraviolet
    line_9:        observations of the Crab, Vela, and LMC pulsars will
    line_10:       be obtained.  Likely candidates will also be
    line_11:       observed to attempt detection of pulses from pulsars
    line_12:       previously undetected in the optical (millisecond
    line_13:       pulsars and two binary pulsars).  Revision History:
    line_14:       Prepared for future cycles submission--BJW 4/24/92;
    line_15:       Cycle 3 to cycle 2; Filter revisions--BJW 8/27/92;
    line_16:       Update coordinates for OFF-LMC--BJW 10/27/92; Minor
    line_17:       change to exposure time--BJW 11/19/92; Change in
    line_18:       detector and aperture--BJW 12/1/92; Update STScI
    line_19:       version with changes made since 8/27/92--BJW
    line_20:       12/7/92;

!
! end of abstract

general_form_proposers:

  lname:           VAN CITTERS
    fname:         G.
    mi:            W.
    inst:          NATIONAL SCIENCE FOUNDATION
    country:       USA

!

  lname:           BLESS
    fname:         ROBERT
    mi:            C.
    inst:          WISCONSIN, UNIVERSITY OF
    country:       USA

!

  lname:           DOLAN
    fname:         JOSEPH
    mi:            F.
    inst:          NASA, GODDARD SPACE FLIGHT CENTER
    country:       USA

!

  lname:           ELLIOT
    fname:         JAMES
    mi:            L.
    inst:          MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    country:       USA

!

  lname:           ROBINSON
    fname:         EDWARD
    mi:            L.
    inst:          TEXAS, UNIVERSITY OF
    country:       USA

!
! end of general_form_proposers block

general_form_text:

  question:        3
    section:       1
    line_1:        CYCLE 0:  Crab Pulsar - Observe through UV and V
    line_2:        filter each orbit to use V filter as phase
    line_3:        reference. Total time 20 minutes each UV filter and
    line_4:        60 minutes in V--total 3H 2M.  CYCLE 2:  Vela Pulsar
    line_5:        - WFC image(10M) 2 months before to identify field.
    line_6:        One hour in each filter (3 filters) in rotation.
    line_7:        Repeat until 4 hours of integration per filter are
    line_8:        obtained. 12H 11M total. Vela may be in CVZ--needs
    line_9:        dark time.  LMC Pulsar - Same as Vela. Needs dark
    line_10:       time.  Millisecond Pulsars - WFC image 2 months
    line_11:       before to explore field. Integrate for 5-1/3 hours
    line_12:       in split mode (filters 750W & 320N) for each of two
    line_13:       pulsar fields.  Other Candidates Needs dark time. 16
    line_14:       hours total.

!

  question:        4
    section:       1
    line_1:        The Space Telescope, besides the obvious access to
    line_2:        the UV, provides an opportunity to examine pulse
    line_3:        shape, phase as a function of frequency, and
    line_4:        polarization with lower sky background levels,
    line_5:        better discrimination against nebular contamination
    line_6:        and lack of scintillation noise. Significant
    line_7:        improvement over ground-based data is expected.

!

  question:        6
    section:       1
    line_1:        Relating Space Telescope observations of pulsars to
    line_2:        previous ground-based data will, in some cases,
    line_3:        require calibration of the Space Telescope clock to
    line_4:        +/- 10 msec to enable phase comparisons. This can be
    line_5:        done after the observations.

!

  question:        13
    section:       1
    line_1:        To provide better model constraints, visual and
    line_2:        ultraviolet observations of the Crab, Vela, and LMC
    line_3:        pulsars will be obtained. Likely candidates will
    line_4:        also be observed to attempt detection of pulses from
    line_5:        pulsars previously undetected in the optical
    line_6:        (millisecond pulsars and two binary pulsars).

!
!end of general form text

general_form_address:

  lname:           BLESS
    fname:         ROBERT
    mi:            C.
    category:      PI
    inst:          UNIVERSITY OF WISCONSIN
    addr_1:        WASHBURN OBSERVATORY
    addr_2:        475 N. CHARTER STREET
    city:          MADISON
    state:         WI
    zip:           53706
    country:       USA
    phone:         608-262-1715
    telex:         265452-UOFWISC-MDS

!

  lname:           VAN CITTERS
    fname:         G.
    mi:            W.
    category:      CON
    inst:          NATIONAL SCIENCE FOUNDATION
    addr_1:        DIV. OF ASTRONOMICAL SCI.
    addr_2:        1800 G STREET, N.W.
    city:          WASHINGTON
    state:         DC
    zip:           20550
    country:       USA
    phone:         202-357-9793
    telex:         982-438

!
! end of general_form_address records

fixed_targets:

    targnum:       1
    name_1:        LMC-PULSAR
    descr_1:       PULSAR IN LMC
    pos_1:         RA = 5H 40M 11.32S +/- 0.01S,
    pos_2:         DEC = -69D 19' 55.76" +/- 0.01"
    equinox:       1993
    acqpr_1:       BKG
    fluxnum_1:     1
    fluxval_1:     V=21

!

    targnum:       2
    name_1:        OFF-LMC
    descr_1:       OFFSET TARGET FOR LMC-PULSAR
    pos_1:         RA = 5H 40M 07.83S +/- 0.01",
    pos_2:         DEC = -69D 20' 05.25" +/- 0.07"
    equinox:       1993
    pm_or_par:     N
    comment_1:     GS 9163 462
    comment_2:     POSREF = GSC.
    fluxnum_1:     1
    fluxval_1:     V=12.3

!

    targnum:       3
    name_1:        PSR0833-45
    name_2:        VELA PULSAR
    descr_1:       PULSAR
    pos_1:         RA = 08H 33M 39.27S +/- 0.02S,
    pos_2:         DEC = -45D 00' 10.2" +/- 0.3"
    equinox:       1950
    pm_or_par:     N
    comment_1:     EXACT OFFSET FROM OFF0833-45
    comment_2:     TO BE DETERMINED IN WFC EARLY
    comment_3:     ACQUISITION.
    comment_4:     POSREF = VANCITTERS
    fluxnum_1:     1
    fluxval_1:     B=23.6

!

    targnum:       4
    name_1:        OFF0833-45
    descr_1:       OFFSET TARGET FOR PSR0833-45
    pos_1:         RA = 08H 35M 19.82S +/- 0.5",
    pos_2:         DEC = -45D 10' 27.9" +/- 0.5"
    equinox:       2000
    pm_or_par:     N
    comment_1:     STAR K FROM LASKER ET AL. (1972)
    comment_2:     AP.J.(LETT) 176, L65.
    comment_3:     POSREF = VANCITTERS
    fluxnum_1:     1
    fluxval_1:     V=18.0

!
! end of fixed targets

! No solar system records found

! No generic target records found

exposure_logsheet:

    linenum:       0.300
    sequence_1:    DEFINE
    sequence_2:    CTR2
    targname:      #
    config:        HSP/UV2
    opmode:        ACQ
    num_exp:       1
    time_per_exp:  1S
    fluxnum_1:     1
    priority:      #

!

    linenum:       13.000
    targname:      LMC-PULSAR
    config:        WFC
    opmode:        IMAGE
    aperture:      ALL
    sp_element:    F555W
    num_exp:       2
    time_per_exp:  10M
    s_to_n:        10
    fluxnum_1:     1
    priority:      1
    req_1:         CYCLE 2 / 13-21;
    req_2:         DARK TIME / 13-14.1;
    req_3:         EARLY ACQ FOR 14.1-15.8;
    req_4:         PCS MODE FINE / 13-21;
    comment_1:     USED TO DETERMINE PRECISE OFFSETS
    comment_2:     OF STARS FROM PULSARS.

!

    linenum:       14.100
    targname:      OFF-LMC
    config:        HSP/VIS
    opmode:        ACQ
    num_exp:       1
    time_per_exp:  3M
    fluxnum_1:     1
    priority:      1
    param_1:       SIZE=15,
    req_1:         ONBOARD ACQ FOR 14.25;

!

    linenum:       14.250
    targname:      LMC-PULSAR
    config:        HSP/VIS
    opmode:        SINGLE
    aperture:      1.0
    sp_element:    F160LP
    num_exp:       1
    time_per_exp:  1H
    fluxnum_1:     1
    priority:      1
    param_1:       SAMPLE-TIME=0.0003,
    req_1:         RT-ANALYSIS;

!

    linenum:       15.000
    sequence_1:    USE
    sequence_2:    CTR2
    targname:      LMC-PULSAR
    time_per_exp:  X800
    priority:      1
    req_1:         ONBOARD ACQ FOR 15.25;
    req_2:         SEQ 15 - 15.8 NO GAP;

!

    linenum:       15.250
    targname:      LMC-PULSAR
    config:        HSP/UV2
    opmode:        SINGLE
    aperture:      10.0
    sp_element:    F140LP
    num_exp:       1
    time_per_exp:  1H
    fluxnum_1:     1
    priority:      1
    param_1:       SAMPLE-TIME=0.0003,
    req_1:         RT-ANALYSIS;

!

    linenum:       15.400
    targname:      LMC-PULSAR
    config:        HSP/UV2
    opmode:        SINGLE
    aperture:      10.0
    sp_element:    F140LP
    num_exp:       1
    time_per_exp:  1H
    fluxnum_1:     1
    priority:      1
    param_1:       SAMPLE-TIME=0.0003,
    req_1:         RT-ANALYSIS;

!

    linenum:       15.600
    targname:      LMC-PULSAR
    config:        HSP/UV2
    opmode:        SINGLE
    aperture:      10.0
    sp_element:    F140LP
    num_exp:       1
    time_per_exp:  1H
    fluxnum_1:     1
    priority:      1
    param_1:       SAMPLE-TIME=0.0003,
    req_1:         RT-ANALYSIS;

!

    linenum:       15.800
    targname:      LMC-PULSAR
    config:        HSP/UV2
    opmode:        SINGLE
    aperture:      10.0
    sp_element:    F140LP
    num_exp:       1
    time_per_exp:  1H
    fluxnum_1:     1
    priority:      1
    param_1:       SAMPLE-TIME=0.0003,
    req_1:         RT-ANALYSIS;

!

    linenum:       16.000
    targname:      PSR0833-45
    config:        WFC
    opmode:        IMAGE
    aperture:      ALL
    sp_element:    F555W
    num_exp:       2
    time_per_exp:  15M
    s_to_n:        10
    fluxnum_1:     1
    priority:      1
    req_1:         DARK TIME / 16-21;
    req_2:         EARLY ACQ FOR 16.1-21;
    comment_1:     USED TO DETERMINE PRECISE OFFSET
    comment_2:     OF STAR FROM PULSAR.

!

    linenum:       16.100
    targname:      OFF0833-45
    config:        HSP/VIS
    opmode:        ACQ
    num_exp:       1
    time_per_exp:  3M
    fluxnum_1:     1
    priority:      1
    param_1:       SIZE=15,
    req_1:         ONBOARD ACQ FOR 17;

!

    linenum:       17.000
    targname:      PSR0833-45
    config:        HSP/VIS
    opmode:        SINGLE
    aperture:      1.0
    sp_element:    F160LP
    num_exp:       1
    time_per_exp:  1H
    fluxnum_1:     1
    priority:      1
    param_1:       SAMPLE-TIME=0.0003,
    req_1:         RT-ANALYSIS;

!

    linenum:       17.500
    sequence_1:    USE
    sequence_2:    CTR2
    targname:      PSR0833-45
    time_per_exp:  X800
    priority:      1
    req_1:         ONBOARD ACQ FOR 18;
    req_2:         SEQ 17.5 - 21 NO GAP;

!

    linenum:       18.000
    targname:      PSR0833-45
    config:        HSP/UV2
    opmode:        SINGLE
    aperture:      10.0
    sp_element:    F140LP
    num_exp:       1
    time_per_exp:  1H
    fluxnum_1:     1
    priority:      1
    param_1:       SAMPLE-TIME=0.0003,
    req_1:         RT-ANALYSIS;

!

    linenum:       19.000
    targname:      PSR0833-45
    config:        HSP/UV2
    opmode:        SINGLE
    aperture:      10.0
    sp_element:    F140LP
    num_exp:       1
    time_per_exp:  1H
    fluxnum_1:     1
    priority:      1
    param_1:       SAMPLE-TIME=0.0003,
    req_1:         RT-ANALYSIS;

!

    linenum:       20.000
    targname:      PSR0833-45
    config:        HSP/UV2
    opmode:        SINGLE
    aperture:      10.0
    sp_element:    F140LP
    num_exp:       1
    time_per_exp:  1H
    fluxnum_1:     1
    priority:      1
    param_1:       SAMPLE-TIME=0.0003,
    req_1:         RT-ANALYSIS;

!

    linenum:       21.000
    targname:      PSR0833-45
    config:        HSP/UV2
    opmode:        SINGLE
    aperture:      10.0
    sp_element:    F140LP
    num_exp:       1
    time_per_exp:  1H
    fluxnum_1:     1
    priority:      1
    param_1:       SAMPLE-TIME=0.0003,
    req_1:         RT-ANALYSIS;

!
! end of exposure logsheet

! No scan data records found