!  File:  3981C.PROP
!  Database:  PEPDB
!  Date:  20-FEB-1994:02:34:01

coverpage:

  title_1:         GRAVITATIONAL LENS CANDIDATE 1208+101: PHOTOMETRY
    sci_cat:       QUASARS & AGN
    proposal_for:  GO/DD
    pi_title:      DR.
    pi_fname:      JOHN
    pi_mi:         N.
    pi_lname:      BAHCALL
    pi_inst:       INSTITUTE FOR ADVANCED STUDY
    pi_country:    USA
    pi_phone:      (609) 734-8054
    keywords_1:    QUASAR, GRAVITATIONAL LENS
    hours_pri:     2.10
    num_pri:       1
    wf_pc:         X
    pi_position:   DR. JOHN N. BAHCALL
    off_fname:     ALLEN
    off_lname:     ROWE
    off_title:     ASSOC DIR ADM/FIN
    off_addr_1:    INSTITUTE FOR ADVANCED STUDY
    off_addr_2:    OLDEN LANE
    off_city:      PRINCETON
    off_state:     NJ
    off_zip:       08540
    off_country:   USA
    off_phone:     (609) 734-8205
    off_telex:     837680
! end of coverpage

abstract:

    line_1:        Planetary Camera images of the high-redshift quasar 1208+101
    line_2:        will be obtained with several broad band filters.  These
    line_3:        observations will determine whether the colors of the
    line_4:        three unresolved sources located within a region 0.6"
    line_5:        are the same; if so, then the objects are likely to be
    line_6:        gravitationally lensed images of the quasar.
    line_7:        Only HST can provide sufficient spatial resolution to
    line_8:        provide accurate photometry on the individual images.

!
! end of abstract

general_form_proposers:

  lname:           BAHCALL
    fname:         JOHN
    mi:            N.
    inst:          INSTITUTE FOR ADVANCED STUDY
    country:       USA

!

  lname:           SCHNEIDER
    fname:         DONALD
    mi:            P.
    inst:          INSTITUTE FOR ADVANCED STUDY
    country:       USA

!

  lname:           MAOZ
    fname:         DAN
    inst:          INSTITUTE FOR ADVANCED STUDY
    country:       USA

!

  lname:           DOXSEY
    fname:         ROGER
    inst:          SPACE TELESCOPE SCIENCE INSTITUTE
    country:       USA

!

  lname:           HARTIG
    fname:         GEORGE
    mi:            F.
    inst:          SPACE TELESCOPE SCIENCE INSTITUTE
    country:       USA

!
! end of general_form_proposers block

general_form_text:

  question:        3
    section:       1
    line_1:        Four images of 1208+101 will be taken with the Planetary
    line_2:        Camera.  Three exposures (F555W, F702W, and F785LP) have
    line_3:        integration times of 10 minutes; the other frame (F439W)
    line_4:        has an exposure time of 30 minutes.

!

  question:        4
    section:       1
    line_1:        HST observations are required in order to resolve the
    line_2:        three components.  The image separations are too small
    line_3:        for ground-based pictures to allow accurate photometry.

!

  question:        5
    section:       1
    line_1:

!

  question:        7
    section:       1
    line_1:        Data reduction and analysis will be performed at both the
    line_2:        Institute for Advanced Study and at STScI.

!

  question:        8
    section:       1
    line_1:

!

  question:        10
    section:       1
    line_1:        Computing support and research associates will be available
    line_2:        at both IAS and STScI as required by the science.

!

  question:        13
    section:       1
    line_1:

!
!end of general form text

general_form_address:

  lname:           BAHCALL
    fname:         JOHN
    mi:            N.
    title:         DR.
    category:      PI
    inst:          INSTITUTE FOR ADVANCED STUDY
    addr_1:        OLDEN LANE
    city:          PRINCETON
    state:         NJ
    zip:           08540
    country:       USA
    phone:         (609) 734-8054
    telex:         837680

!
! end of general_form_address records

fixed_targets:

    targnum:       1
    name_1:        1208+101
    descr_1:       QUASAR
    pos_1:         RA = 12H 08M 23.7S +/- 0.1S,
    pos_2:         DEC = +10D 11' 08.0" +/- 1"
    equinox:       1950
    pm_or_par:     NO
    fluxnum_1:     1
    fluxval_1:     V = 17.9 +/- 0.2

!
! end of fixed targets

! No solar system records found

! No generic target records found

exposure_logsheet:

    linenum:       1.000
    targname:      1208+101
    config:        PC
    opmode:        IMAGE
    aperture:      ALL
    sp_element:    F555W
    num_exp:       1
    time_per_exp:  600S
    fluxnum_1:     1
    priority:      2
    param_1:       PRE-FLASH=YES
    req_1:         CYCLE 1 / 1-7

!

    linenum:       2.000
    targname:      1208+101
    config:        PC
    opmode:        IMAGE
    aperture:      ALL
    sp_element:    F702W
    num_exp:       1
    time_per_exp:  300S
    fluxnum_1:     1
    priority:      2
    param_1:       PRE-FLASH=YES,
    param_2:       CR-SPLIT=NO

!

    linenum:       3.000
    targname:      1208+101
    config:        PC
    opmode:        IMAGE
    aperture:      ALL
    sp_element:    F702W
    num_exp:       1
    time_per_exp:  300S
    fluxnum_1:     1
    priority:      2
    param_1:       PRE-FLASH=YES,
    param_2:       CR-SPLIT=NO

!

    linenum:       4.000
    targname:      1208+101
    config:        PC
    opmode:        IMAGE
    aperture:      ALL
    sp_element:    F785LP
    num_exp:       1
    time_per_exp:  420S
    fluxnum_1:     1
    priority:      2
    param_1:       PRE-FLASH=YES,
    param_2:       CR-SPLIT=NO

!

    linenum:       5.000
    targname:      1208+101
    config:        PC
    opmode:        IMAGE
    aperture:      ALL
    sp_element:    F785LP
    num_exp:       1
    time_per_exp:  420S
    fluxnum_1:     1
    priority:      2
    param_1:       PRE-FLASH=YES,
    param_2:       CR-SPLIT=NO

!

    linenum:       6.000
    targname:      1208+101
    config:        PC
    opmode:        IMAGE
    aperture:      ALL
    sp_element:    F439W
    num_exp:       1
    time_per_exp:  900S
    fluxnum_1:     1
    priority:      2
    param_1:       PRE-FLASH=YES,
    param_2:       CR-SPLIT=NO

!

    linenum:       7.000
    targname:      1208+101
    config:        PC
    opmode:        IMAGE
    aperture:      ALL
    sp_element:    F439W
    num_exp:       1
    time_per_exp:  900S
    fluxnum_1:     1
    priority:      2
    param_1:       PRE-FLASH=YES,
    param_2:       CR-SPLIT=NO

!
! end of exposure logsheet

! No scan data records found