!  File:  4065C.PROP
!  Database:  PEPDB
!  Date:  20-FEB-1994:07:14:01

coverpage:

  title_1:         DARK NOISE MONITORING HRS
    proposal_for:  CAL/HRS
    cont_id:       2841
    pi_fname:      STEVE
    pi_lname:      HULBERT
    pi_inst:       ST SCI
    pi_country:    USA
    pi_phone:      301-338-4454
    keywords_1:    HRS, CALIBRATION, CYCLE 2
    hours_par:     7.47
    hrs:           Y
    pi_position:   GHRS INST SCI
! end of coverpage

abstract:

    line_1:        CYCLE 2 test for routine monitoring of detector dark noise.
    line_2:        This proposal will provide the primary means of checking on
    line_3:        health of the GHRS detector systems through frequent
    line_4:        monitoring of the background count rate.

!
! end of abstract

general_form_proposers:

  lname:           GILLILAND
    fname:         RONALD
    mi:            L.
    inst:          ST SCI
    country:       USA

!

  lname:           SODERBLOM
    fname:         DAVE
    inst:          ST SCI
    country:       USA

!
! end of general_form_proposers block

general_form_text:

  question:        3
    section:       1
    line_1:        Engineering mode "Photoscan" can be used. An integration time of 10
    line_2:        seconds with 7 bins produces a readout every 70 seconds. 16 of these
    line_3:        observations provides 18.7 minutes of dark count data. All deflection
    line_4:        are 2048, 2048.

!

  question:        5
    section:       1
    line_1:
    line_12:       Estimated observing time =  24 exposures x 18.67 minutes =
    line_13:       448 minutes = 7.47 hours.
    line_17:       Guiding Tolerance: none - internal test only

!

  question:        5
    section:       2
    line_1:        These are internal tests and do not require any special pointing of the
    line_2:        telescope. They do not demand that HRS be prime instrument. It is hoped that
    line_3:        HRS can be operated in a parallel mode, allowing these dark count monitors to
    line_4:        be run very frequently.
    line_6:        There is no carrousel motion.

!

  question:        7
    section:       1
    line_1:        Basically the same as for test HRS-i5, but with long term trend analysis and
    line_2:        improvement of statistical accuracy as the main goals.

!
!end of general form text

general_form_address:

  lname:           GILLILAND
    fname:         RONALD
    mi:            L
    category:      PI
    inst:          ST SCI
    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:       2.000
    sequence_1:    DEFINE
    sequence_2:    D2DARK
    targname:      DARK
    config:        HRS
    opmode:        PHOTOSCAN
    aperture:      NONE
    sp_element:    SAFE2
    num_exp:       16
    time_per_exp:  70S
    priority:      1
    param_1:       TYPE=SHORT-Y,SPACING=0,X=2048,Y=
    param_2:       2048,
    comment_1:     STEP-TIME=10S

!

    linenum:       6.000
    sequence_1:    USE
    sequence_2:    D2DARK
    req_1:         REPEAT 6 EVERY 60D +/- 15D
    req_2:         FOR  5 MORE TIMES;
    req_3:         CYCLE 2;

!

    linenum:       10.000
    sequence_1:    USE
    sequence_2:    D2DARK
    req_1:         REPEAT 10 EVERY 60D +/- 15D
    req_2:         FOR  5 MORE TIMES;
    req_3:         CYCLE 2;
    comment_1:     TAKE DARK COUNTS IN THE SAA.

!
! end of exposure logsheet

! No scan data records found