!  File:  2863C.PROP
!  Database:  PEPDB
!  Date:  17-FEB-1994:19:08:15

coverpage:

  title_1:         HSP DETECTOR DARK COUNT TEST
    proposal_for:  CAL/HSP
    pi_title:      DR.
    pi_fname:      RICHARD
    pi_mi:         L.
    pi_lname:      WHITE
    pi_inst:       SPACE TELESCOPE SCIENCE INSTITUTE
    pi_country:    USA
    pi_phone:      (301) 338-4797
    hours_pri:     1.65
    hours_par:     68.68
    num_pri:       1
    hsp:           Y
    pi_position:   INSTRUMENT SCIENTIST
! end of coverpage

abstract:

    line_1:        This proposal defines the procedure for monitoring the dark count on each of
    line_2:        the HSP detectors to determine the instrumental noise characteristics. It is an
    line_3:        internal test intended to become a routine procedure. Each of the four IDTs
    line_4:        will be sampled at three different cathode locations; the PMT will be
    line_5:        monitored as well.
    line_6:        Note: This is RPSS file # 1379. Revision history: Richards 4/13/88,
    line_7:        Slovak 5/20/88, Richards 6/29/88,
    line_8:        Translate to V2 instructions and
    line_9:        changed sample time to 0.1 sec
    line_10:       Richards 12/28/88

!
! end of abstract

general_form_proposers:

  lname:           WHITE
    fname:         RICHARD
    title:         DR.
    mi:            L.
    inst:          SPACE TELESCOPE SCIENCE INSTITUTE
    country:       USA

!

  lname:           WALTER
    fname:         LISA
    title:         MS.
    mi:            E.
    inst:          SPACE TELESCOPE SCIENCE INSTITUTE
    country:       USA

!
! end of general_form_proposers block

general_form_text:

  question:        2
    section:       1
    line_1:        The justification for the proposed test is to determine the time, temperature
    line_2:        and spatial dependencies of the dark count characteristics of each of the five
    line_3:        HSP detectors.
    line_5:        The four IDTs will be spatially mapped at three different cathode locations
    line_6:        across the face of each detector; the dark from the PMT will also be measured.
    line_7:        Each detector will be tested in both the digital and analog modes of
    line_8:        operation.
    line_10:       This test is to be repeated regularly as it is anticipated that the results
    line_11:       (e.g., mean dark count rates for each detector) will be inputs for the
    line_12:       Calibration Data Base (CDB).
    line_14:       The in-flight results will be compared with the extant data currently available
    line_15:       from ground testing and from previous orbital measurements.

!

  question:        3
    section:       1
    line_1:        This test is to be performed during dark time, and during the PMT
    line_2:        portion of the test the ST should be pointing at a dark sky target.
    line_4:        1) IDTs (i=1,4): the HSP is to be configured in the single-color, one aperture
    line_5:        mode (HSP/x, SINGLE) with the detector at nominal high voltage and PAD
    line_6:        settings. Each detector is to be sampled at the central cathode position and at
    line_7:        two other positions along the edge of the cathode, none of which correspond to
    line_8:        any aperture. These three positions have the following detector coordinate
    line_9:        positions:
    line_10:       (a) (H,V) = (2000,1900)
    line_11:       (b) (H,V) = (3600,1900)
    line_12:       (c) (H,V) = (2000,3000)
    line_14:       An integration of 5 minutes in length, sampling at 0.1 second samples, is to be
    line_15:       obtained at each position. The detector high voltage will then be turned off
    line_16:       and a fourth 5 minute integration made at (H,V) = (2000, 1900)
    line_18:       2) PMT: Operating at the nominal high voltage the dark current is to be sampled
    line_19:       for 5 minutes. The PMT high voltage will then be turned off and a second 5
    line_20:       minute integration made. Data are to be taken in the ALL format.

!

  question:        5
    section:       1
    line_1:        This is an internal test for the IDTs, with no external targets required.
    line_2:        For the PMT, the telescope must be pointed at a dark sky position.
    line_3:        To perform the test, it is assumed that each detector has been powered
    line_4:        up for 30 minutes, which is the case if the standard stabilization
    line_5:        times are used.
    line_6:        Dark time and non-SAA passage are required for this test.

!

  question:        7
    section:       1
    line_1:        The data reduction is planned as follows: for each of the detectors the mean
    line_2:        dark count rate (digital mode) will be determined as a function of cathode
    line_3:        position. After the test is performed enough times, for each cathode position
    line_4:        the mean values will be plotted as a function of (a) detector temperature and
    line_5:        (b) observation time. The data analysis will consist of performing a trend
    line_6:        analysis on the various data series from the data reduction process in order
    line_7:        to determine the potential hysteresis (if any) and to monitor the temporal
    line_8:        development of the noise properties of the various detectors.

!

  question:        10
    section:       1
    line_1:        Data reduction and analysis will be carried out at STScI with CDBS.

!
!end of general form text

general_form_address:

  lname:           WHITE
    fname:         R
    mi:            L
    category:      PI
    inst:          ST SCI
    addr_1:        3700 SAN MARTIN DRIVE
    city:          BALTIMORE
    state:         MD
    zip:           21218

!

  lname:           WHITE
    fname:         RICHARD
    mi:            L.
    category:      PI
    inst:          SPACE TELESCOPE SCIENCE INSTITUTE
    addr_1:        3700 SAN MARTIN DRIVE
    city:          BALTIMORE
    state:         MD
    zip:           21218
    country:       USA
    phone:         (301) 338-4797

!

  lname:           WALTER
    fname:         LISA
    mi:            E.
    category:      CON
    inst:          SPACE TELESCOPE SCIENCE INSTITUTE
    addr_1:        3700 SAN MARTIN DRIVE
    city:          BALTIMORE
    state:         MD
    zip:           21218
    country:       USA
    phone:         (301) 338-5036

!
! end of general_form_address records

fixed_targets:

    targnum:       1
    name_1:        PMT-DARK-SKY
    descr_1:       DARK SKY POSITION FOR PMT DARKS
    pos_1:         RA = 16H 27M 11S +/- .01",
    pos_2:         DEC = -24D 19' 14" +/- .01"
    equinox:       2000.0
    comment_1:     SELECT ONE OF THESE TARGETS AS THE
    comment_2:     PMT DARK SKY POINTING.

!

    targnum:       2
    name_1:        PMT-DARK-SKY-2
    name_2:        BARNARD 5
    pos_1:         RA = 3H 46.3M +/- 0.1M,
    pos_2:         DEC = +32D 49' +/- 1',
    equinox:       1975

!

    targnum:       3
    name_1:        PMT-DARK-SKY-3
    name_2:        BARNARD 227
    pos_1:         RA = 6H 5.9M +/- 0.1M,
    pos_2:         DEC = +19D 42' +/- 1',
    equinox:       1975

!

    targnum:       4
    name_1:        PMT-DARK-SKY-4
    name_2:        BARNARD 46
    pos_1:         RA = 16H 55.7M +/- 0.1M,
    pos_2:         DEC = -22D 42' +/- 1',
    equinox:       1975

!

    targnum:       5
    name_1:        PMT-DARK-SKY-5
    name_2:        BARNARD 100
    pos_1:         RA = 18H 31.3M +/- 0.1M,
    pos_2:         DEC = -9D 10' +/- 1',
    equinox:       1975

!

    targnum:       6
    name_1:        PMT-DARK-SKY-6
    name_2:        BARNARD 362
    pos_1:         RA = 21H 23.1M +/- 0.1M,
    pos_2:         DEC= +50D 6' +/- 1',
    equinox:       1975

!
! end of fixed targets

! No solar system records found

! No generic target records found

exposure_logsheet:

    linenum:       1.000
    sequence_1:    DEFINE
    sequence_2:    DARK-IDT
    targname:      DARK
    config:        #
    opmode:        SINGLE
    aperture:      #
    sp_element:    #
    num_exp:       1
    time_per_exp:  300S
    priority:      1
    param_1:       #,

!

    linenum:       5.000
    sequence_1:    DEFINE
    sequence_2:    DARK-PMT
    targname:      PMT-DARK-SKY
    config:        HSP/PMT/VIS
    opmode:        SPLIT
    aperture:      1.0
    sp_element:    F750W/F320N
    num_exp:       1
    time_per_exp:  300S
    priority:      1
    param_1:       DATA-FORMAT=ALL,
    param_2:       SAMPLE-TIME=0.1,
    param_3:       ANALOG-SCALE=10,
    req_1:         DARK TIME / 5-5.5;
    req_2:         SEQ 5-6 NO GAP;
    req_3:         SELECT 1 OF 5.000 OR 5.100 OR 5.200
    req_4:         OR 5.300 OR 5.400 OR 5.500;
    req_5:         COND IF TARGET FAR FROM SUN;

!

    linenum:       5.100
    sequence_1:    DEFINE
    sequence_2:    DARK-PMT
    targname:      PMT-DARK-SKY-2
    config:        ^
    opmode:        ^
    aperture:      ^
    sp_element:    ^
    num_exp:       ^
    time_per_exp:  ^
    priority:      ^
    param_1:       ^

!

    linenum:       5.200
    sequence_1:    DEFINE
    sequence_2:    DARK-PMT
    targname:      PMT-DARK-SKY-3
    config:        ^
    opmode:        ^
    aperture:      ^
    sp_element:    ^
    num_exp:       ^
    time_per_exp:  ^
    priority:      ^
    param_1:       ^

!

    linenum:       5.300
    sequence_1:    DEFINE
    sequence_2:    DARK-PMT
    targname:      PMT-DARK-SKY-4
    config:        ^
    opmode:        ^
    aperture:      ^
    sp_element:    ^
    num_exp:       ^
    time_per_exp:  ^
    priority:      ^
    param_1:       ^

!

    linenum:       5.400
    sequence_1:    DEFINE
    sequence_2:    DARK-PMT
    targname:      PMT-DARK-SKY-5
    config:        ^
    opmode:        ^
    aperture:      ^
    sp_element:    ^
    num_exp:       ^
    time_per_exp:  ^
    priority:      ^
    param_1:       ^

!

    linenum:       5.500
    sequence_1:    DEFINE
    sequence_2:    DARK-PMT
    targname:      PMT-DARK-SKY-6
    config:        ^
    opmode:        ^
    aperture:      ^
    sp_element:    ^
    num_exp:       ^
    time_per_exp:  ^
    priority:      ^
    param_1:       ^

!

    linenum:       6.000
    sequence_1:    DEFINE
    sequence_2:    DARK-PMT
    targname:      DARK
    config:        ^
    opmode:        ^
    aperture:      ^
    sp_element:    ^
    num_exp:       ^
    time_per_exp:  ^
    priority:      ^
    param_1:       DATA-FORMAT=ALL,
    param_2:       SAMPLE-TIME=0.1,
    param_3:       ANALOG-SCALE=10,
    param_4:       PMT-HV-GAIN=OFF,
    comment_1:     HIGH VOLTAGE OFF.
    comment_2:     CAN SLEW AWAY FROM DARK TARGET
    comment_3:     DURING THIS INTEGRATION.

!

    linenum:       7.000
    sequence_1:    USE
    sequence_2:    DARK-IDT
    config:        HSP/VIS
    aperture:      1.0-A
    sp_element:    F355M
    param_1:       DATA-FORMAT=ALL,
    param_2:       SAMPLE-TIME=0.1,
    param_3:       ANALOG-SCALE=10,
    param_4:       HV-GAIN=G1.0,
    req_1:         DARK TIME;
    req_2:         REPEAT 7-7.3 EVERY 10D +/- 3D FOR 35
    req_3:         MORE TIMES; SEQ 7-7.3 NO GAP;
    req_4:         CYCLE 1 / 7-11;
    comment_1:     (H,V) = (2000,1900)

!

    linenum:       7.100
    sequence_1:    USE
    sequence_2:    DARK-IDT
    config:        HSP/VIS
    aperture:      0.4-B
    sp_element:    F355M
    param_1:       DATA-FORMAT=ALL,
    param_2:       SAMPLE-TIME=0.1,
    param_3:       ANALOG-SCALE=10,
    param_4:       HV-GAIN=G1.0,
    req_1:         DARK TIME;
    comment_1:     (H,V) = (3600,1900)

!

    linenum:       7.200
    sequence_1:    USE
    sequence_2:    DARK-IDT
    config:        HSP/VIS
    aperture:      0.4-C
    sp_element:    F160LP
    param_1:       DATA-FORMAT=ALL,
    param_2:       SAMPLE-TIME=0.1,
    param_3:       ANALOG-SCALE=10,
    param_4:       HV-GAIN=G1.0,
    req_1:         DARK TIME;
    comment_1:     (H,V) = (2000,3000)

!

    linenum:       7.300
    sequence_1:    USE
    sequence_2:    DARK-IDT
    config:        HSP/VIS
    aperture:      1.0-A
    sp_element:    F355M
    param_1:       DATA-FORMAT=ALL,
    param_2:       SAMPLE-TIME=0.1,
    param_3:       ANALOG-SCALE=10,
    param_4:       HV-GAIN=OFF,
    comment_1:     (H,V) = (2000,1900)
    comment_2:     HIGH VOLTAGE OFF

!

    linenum:       8.000
    sequence_1:    USE
    sequence_2:    DARK-IDT
    config:        HSP/UV1
    aperture:      1.0-A
    sp_element:    F240W
    param_1:       DATA-FORMAT=ALL,
    param_2:       SAMPLE-TIME=0.1,
    param_3:       ANALOG-SCALE=10,
    param_4:       HV-GAIN=G1.0,
    req_1:         DARK TIME;
    req_2:         REPEAT 8-8.3 EVERY 10D +/- 3D FOR 35
    req_3:         MORE TIMES; SEQ 8-8.3 NO GAP;
    comment_1:     (H,V) = (2000,1900)

!

    linenum:       8.100
    sequence_1:    USE
    sequence_2:    DARK-IDT
    config:        HSP/UV1
    aperture:      0.4-B
    sp_element:    F240W
    param_1:       DATA-FORMAT=ALL,
    param_2:       SAMPLE-TIME=0.1,
    param_3:       ANALOG-SCALE=10,
    param_4:       HV-GAIN=G1.0,
    req_1:         DARK TIME;
    comment_1:     (H,V) = (3600,1900)

!

    linenum:       8.200
    sequence_1:    USE
    sequence_2:    DARK-IDT
    config:        HSP/UV1
    aperture:      0.4-C
    sp_element:    F140LP
    param_1:       DATA-FORMAT=ALL,
    param_2:       SAMPLE-TIME=0.1,
    param_3:       ANALOG-SCALE=10,
    param_4:       HV-GAIN=G1.0,
    req_1:         DARK TIME;
    comment_1:     (H,V) = (2000,3000)

!

    linenum:       8.300
    sequence_1:    USE
    sequence_2:    DARK-IDT
    config:        HSP/UV1
    aperture:      1.0-A
    sp_element:    F240W
    param_1:       DATA-FORMAT=ALL,
    param_2:       SAMPLE-TIME=0.1,
    param_3:       ANALOG-SCALE=10,
    param_4:       HV-GAIN=OFF,
    comment_1:     (H,V) = (2000,1900)
    comment_2:     HIGH VOLTAGE OFF

!

    linenum:       9.000
    sequence_1:    USE
    sequence_2:    DARK-IDT
    config:        HSP/UV2
    aperture:      1.0-A
    sp_element:    F248M
    param_1:       DATA-FORMAT=ALL,
    param_2:       SAMPLE-TIME=0.1,
    param_3:       ANALOG-SCALE=10,
    param_4:       HV-GAIN=G1.0,
    req_1:         DARK TIME;
    req_2:         REPEAT 9-9.3 EVERY 10D +/- 3D FOR 35
    req_3:         MORE TIMES; SEQ 9-9.3 NO GAP;
    comment_1:     (H,V) = (2000,1900)

!

    linenum:       9.100
    sequence_1:    USE
    sequence_2:    DARK-IDT
    config:        HSP/UV2
    aperture:      0.4-B
    sp_element:    F248M
    param_1:       DATA-FORMAT=ALL,
    param_2:       SAMPLE-TIME=0.1,
    param_3:       ANALOG-SCALE=10,
    param_4:       HV-GAIN=G1.0,
    req_1:         DARK TIME;
    comment_1:     (H,V) = (3600,1900)

!

    linenum:       9.200
    sequence_1:    USE
    sequence_2:    DARK-IDT
    config:        HSP/UV2
    aperture:      0.4-C
    sp_element:    F140LP
    param_1:       DATA-FORMAT=ALL,
    param_2:       SAMPLE-TIME=0.1,
    param_3:       ANALOG-SCALE=10,
    param_4:       HV-GAIN=G1.0,
    req_1:         DARK TIME;
    comment_1:     (H,V) = (2000,3000)

!

    linenum:       9.300
    sequence_1:    USE
    sequence_2:    DARK-IDT
    config:        HSP/UV2
    aperture:      1.0-A
    sp_element:    F248M
    param_1:       DATA-FORMAT=ALL,
    param_2:       SAMPLE-TIME=0.1,
    param_3:       ANALOG-SCALE=10,
    param_4:       HV-GAIN=OFF,
    comment_1:     (H,V) = (2000,1900)
    comment_2:     HIGH VOLTAGE OFF

!

    linenum:       10.000
    sequence_1:    USE
    sequence_2:    DARK-IDT
    config:        HSP/POL
    aperture:      POL90
    sp_element:    F277M
    param_1:       DATA-FORMAT=ALL,
    param_2:       SAMPLE-TIME=0.1,
    param_3:       ANALOG-SCALE=10,
    param_4:       HV-GAIN=G1.0,
    req_1:         DARK TIME;
    req_2:         REPEAT 10-10.3 EVERY 10D +/- 3D FOR 35
    req_3:         MORE TIMES; SEQ 10-10.3 NO GAP;
    comment_1:     (H,V) = (2000,1900)

!

    linenum:       10.100
    sequence_1:    USE
    sequence_2:    DARK-IDT
    config:        HSP/POL
    aperture:      POL45
    sp_element:    F277M
    param_1:       DATA-FORMAT=ALL,
    param_2:       SAMPLE-TIME=0.1,
    param_3:       ANALOG-SCALE=10,
    param_4:       HV-GAIN=G1.0,
    req_1:         DARK TIME;
    comment_1:     (H,V) = (3600,1900)

!

    linenum:       10.200
    sequence_1:    USE
    sequence_2:    DARK-IDT
    config:        HSP/POL
    aperture:      POL90
    sp_element:    F327M
    param_1:       DATA-FORMAT=ALL,
    param_2:       SAMPLE-TIME=0.1,
    param_3:       ANALOG-SCALE=10,
    param_4:       HV-GAIN=G1.0,
    req_1:         DARK TIME;
    comment_1:     (H,V) = (2000,3000)

!

    linenum:       10.300
    sequence_1:    USE
    sequence_2:    DARK-IDT
    config:        HSP/POL
    aperture:      POL90
    sp_element:    F327M
    param_1:       DATA-FORMAT=ALL,
    param_2:       SAMPLE-TIME=0.1,
    param_3:       ANALOG-SCALE=10,
    param_4:       HV-GAIN=OFF,
    comment_1:     (H,V) = (2000,1900)
    comment_2:     HIGH VOLTAGE OFF

!

    linenum:       11.000
    sequence_1:    USE
    sequence_2:    DARK-PMT
    req_1:         REPEAT 11 EVERY 30D +/- 10D FOR 11
    req_2:         MORE TIMES;

!
! end of exposure logsheet

! No scan data records found