!   $Id: 5541,v 4.1 1994/07/27 19:08:04 pepsa Exp $

coverpage:

  title_1:         GHRS SIDE 1 DARK NOISE MONITOR--CYCLE 4
    proposal_for:  CAL/HRS
    pi_title:      DR.
    pi_fname:      STEPHEN
    pi_mi:         J.
    pi_lname:      HULBERT
    pi_inst:       STSCI
    pi_country:    USA
    pi_phone:      301-338-4911
    keywords_1:    HRS, CALIBRATION, CYCLE 4, SIDE 1
    hours_par:     3.73
    hrs:           Y
    pi_position:   GHRS INST SCI
! end of coverpage

abstract:

    line_1:        This test performs the routine monitoring of the GHRS
    line_2:        detector dark noise.
    line_3:        This proposal will provide the primary means of checking on
    line_4:        health of the GHRS detector systems through frequent
    line_5:        monitoring of the background count rate.

!
! end of abstract

general_form_proposers:

  lname:           HULBERT
    fname:         STEPHEN
    title:         DR.
    mi:            J.
    inst:          STSCI
    country:       USA

!

  lname:           SHERBERT
    fname:         LISA
    title:         MRS.
    mi:            E.
    inst:          STSCI
    country:       USA

!
! end of general_form_proposers block

general_form_text:

  question:        3
    section:       1
    line_1:        Engineering mode "Photoscan" will be used. An integration
    line_2:        time of 10 seconds with 7 bins produces a readout every
    line_3:        70 seconds. It is necessary that each bin contain
    line_4:        consecutive 10 second integrations. 16 of these observations
    line_5:        provides 18.7 minutes of dark count data.
    line_6:        All deflections are 2048, 2048.
    line_8:        The first 3 dark monitor proposals (1408, 2841, 4065) were
    line_9:        run after a PMDB Change Request changed the spacing to 16.
    line_10:       When 4065 did not run as expected, the spacing error was
    line_11:       re-discovered and corrected in proposal 5039.
    line_12:       SPACING=16 ensures 10 consecutive seconds of dark data
    line_13:       rather than 50 non-consecutive 0.2 s periods. (LES)

!

  question:        5
    section:       1
    line_1:        Estimated observing time = 12 exposures x 18.67 minutes =
    line_2:        224.04 minutes = 3.73 hours for Side 1.
    line_3:        Estimates based on 15 month lifetime for Cycle 4;
    line_4:        monitor run twice every 2.5 months (1 in SAA; 1 out SAA).
    line_5:        Guiding Tolerance: none - internal test only
    line_7:        Second execution of this test should be ONLY ONE(1) MONTH
    line_8:        after first execution.

!

  question:        5
    section:       2
    line_1:        These are internal tests and do not require any special
    line_2:        pointing of the telescope. There is no carrousel motion.
    line_3:        Line 11 should be executed completely WITHIN the SAA.
    line_4:        Line 10 should be executed OUTSIDE of the SAA
    line_5:        but should NOT be interrupted by an SAA passage.

!

  question:        7
    section:       1
    line_1:        The basic goals are long term trend analysis and
    line_2:        improvement of statistical accuracy.

!
!end of general form text

general_form_address:

  lname:           HULBERT
    fname:         STEPHEN
    mi:            J.
    title:         DR.
    category:      PI
    inst:          STSCI
    addr_1:        3700 SAN MARTIN DRIVE
    city:          BALTIMORE
    state:         MD
    zip:           21218
    country:       USA

!
! end of general_form_address records

! No fixed target records found

! No solar system records found

! No generic target records found

exposure_logsheet:

    linenum:       1.000
    sequence_1:    DEFINE
    sequence_2:    D1DARK
    targname:      DARK
    config:        HRS
    opmode:        PHOTOSCAN
    aperture:      NONE
    sp_element:    SAFE1
    num_exp:       16
    time_per_exp:  70S
    priority:      1
    param_1:       TYPE=SHORT-Y,
    param_2:       SPACING=16,
    param_3:       X=2048,
    param_4:       Y=2048
    comment_1:     STEP-TIME=10S
    comment_2:     CHECK THAT EACH BIN CONTAINS 10
    comment_3:     SECONDS OF CONSECUTIVE DARK DATA.

!

    linenum:       10.000
    sequence_1:    USE
    sequence_2:    D1DARK
    req_1:         CYCLE 4;
    req_2:         REPEAT 10 EVERY 75D +/- 5D
    req_3:         FOR 5 MORE TIMES;
    comment_1:     TAKE UNINTERRUPTED DARK COUNTS
    comment_2:     OUTSIDE THE SAA.

!

    linenum:       11.000
    sequence_1:    USE
    sequence_2:    D1DARK
    req_1:         CYCLE 4;
    req_2:         REPEAT 11 EVERY 75D +/- 5D
    req_3:         FOR 5 MORE TIMES;
    comment_1:     TAKE UNINTERRUPTED DARK COUNTS
    comment_2:     THROUGH THE SAA.

!
! end of exposure logsheet

! No scan data records found