!  File:  4876C.PROP
!  Database:  PEPDB
!  Date:  23-FEB-1994:07:27:20

coverpage:

  title_1:         WEAK INTERSTELLAR ABSORPTION TOWARD ZETA OPH---AUGMENTED
    title_2:       CYCLE 3, HIGH PRIORITY
    sci_cat:       INTERSTELLAR MEDIUM
    proposal_for:  GTO/HRS
    cont_id:       3535
    pi_fname:      BLAIR
    pi_lname:      SAVAGE
    pi_inst:       UNIVERSITY OF WISCONSIN-MADISON
    pi_country:    USA
    pi_phone:      608-262-2395
    keywords_1:    INTERSTELLAR, GAS SPECTROSCOPY, UV
    hours_pri:     1.30
    num_pri:       1
    hrs:           Y
! end of coverpage

abstract:

    line_1:        This proposal is intended to exploit the ability of
    line_2:        the GHRS to obtain very high quality data of very weak
    line_3:        interstellar absorption lines.  We propose here to obtain
    line_4:        ECH-B data of a very weak transition of Si II at 2335 A
    line_5:        toward Zeta Oph.  High quality data of stronger Si II
    line_6:        already exist for this target.  However, these stronger
    line_7:        require large corrections for the presence of saturation.
    line_8:        This weak line will be free of such corrections and so
    line_9:        will allow the Si II abundance to be more reliably measured.

!
! end of abstract

general_form_proposers:

  lname:           SAVAGE
    fname:         BLAIR
    title:         PI
    mi:            D.
    inst:          UNIVERSITY OF WISCONSIN
    country:       USA

!

  lname:           SOFIA
    fname:         ULYSSES
    mi:            J.
    inst:          UNIVERSITY OF WISCONSIN
    country:       USA

!

  lname:           CARDELLI
    fname:         JASON
    mi:            A.
    inst:          UNIV. OF WISCONSIN
    country:       USA

!
! end of general_form_proposers block

general_form_text:

  question:        3
    section:       1
    line_1:        HRS scanning will be performed at two wavelengths near
    line_2:        2335 angstroms in order to measure the very weak line of
    line_3:        Si II 2335 A arising in the ISM toward Zeta Oph.
    line_4:        Cycle 3 Exposures 60-330

!

  question:        4
    section:       1
    line_1:        1E5 resolution UV spectra and high signal-to-noise are
    line_2:        essential for obtaining accurate abundances for very
    line_3:        weak interstellar absorption lines.

!

  question:        6
    section:       1
    line_1:        none

!

  question:        7
    section:       1
    line_1:        Data will be reduced in Madison using the MADRAF VAX.

!

  question:        10
    section:       1
    line_1:        The data reduction facility.

!
!end of general form text

general_form_address:

  lname:           SAVAGE
    fname:         BLAIR
    mi:            D.
    category:      PI
    inst:          UNIVERSITY OF WISCONSIN
    addr_1:        DEPT. OF ASTRONOMY
    city:          MADISON
    state:         WI
    zip:           53706
    country:       USA
    phone:         608-262-0309

!

  lname:           SOFIA
    fname:         ULYSSES
    mi:            J.
    category:      PI
    inst:          UNIVERSITY OF WISCONSIN
    addr_1:        DEPT. OF ASTRONOMY
    city:          MADISON
    state:         WI
    zip:           53706
    country:       USA
    phone:         608-262-7542

!

  lname:           CARDELLI
    fname:         JASON
    mi:            A.
    category:      PI
    inst:          UNIVERSITY OF WISCONSIN
    addr_1:        DEPT. OF ASTRONOMY
    city:          MADISON
    state:         WI
    zip:           53706
    country:       USA
    phone:         608-262-7921

!
! end of general_form_address records

fixed_targets:

    targnum:       1
    name_1:        ZETA-OPH
    name_2:        HD149757
    descr_1:       STAR WITH STRONG INTERSTELLAR LINES
    pos_1:         RA = 16H 37M 09.53S +/- 0.01S,
    pos_2:         DEC = -10D 34' 2.1" +/- 0.04",
    pos_3:         PLATE-ID=006P
    equinox:       2000
    pm_or_par:     Y
    pos_epoch_yr:  1950.00
    ra_pm_val:     0.000814
    ra_pm_unct:    0.000068
    dec_pm_val:    0.0230
    dec_pm_unct:   0.0010
    fluxnum_1:     1
    fluxval_1:     V=2.56, TYPE=O9.5V,
    fluxval_2:     E(B-V)=0.32

!
! end of fixed targets

! No solar system records found

! No generic target records found

exposure_logsheet:

    linenum:       60.000
    sequence_1:    DEFINE
    sequence_2:    ECH
    targname:      ZETA-OPH
    config:        HRS
    opmode:        ACCUM
    aperture:      #
    sp_element:    #
    wavelength:    1000
    num_exp:       1
    time_per_exp:  57.6S
    s_to_n:        50
    fluxnum_1:     1
    priority:      1
    param_1:       STEP-PATT=6,
    param_2:       FP-SPLIT=STD,

!

    linenum:       300.000
    targname:      ZETA-OPH
    config:        HRS
    opmode:        ACQ
    aperture:      2.0
    sp_element:    MIRROR-A2
    num_exp:       1
    time_per_exp:  1.8S
    fluxnum_1:     1
    priority:      1
    param_1:       SEARCH-SIZE=3,
    param_2:       BRIGHT=RETURN
    req_1:         ONBOARD ACQ FOR 300.1;
    req_2:         CYCLE 3 / 60-330
    comment_1:     STEP-TIME=0.2S

!

    linenum:       300.100
    targname:      ZETA-OPH
    config:        HRS
    opmode:        ACQ/PEAKUP
    aperture:      2.0
    sp_element:    MIRROR-A2
    num_exp:       1
    time_per_exp:  20.4S
    fluxnum_1:     1
    priority:      1
    req_1:         ONBOARD ACQ FOR 320-330
    comment_1:     STEP-TIME=0.2S

!

    linenum:       320.000
    sequence_1:    USE
    sequence_2:    ECH
    aperture:      0.25
    sp_element:    ECH-B24
    wavelength:    X2.333
    time_per_exp:  X10

!

    linenum:       330.000
    sequence_1:    USE
    sequence_2:    ECH
    aperture:      0.25
    sp_element:    ECH-B24
    wavelength:    X2.337
    time_per_exp:  X10

!
! end of exposure logsheet

! No scan data records found