!  File:  1457C.PROP
!  Database:  PEPDB
!  Date:  16-FEB-1994:19:22:04

coverpage:

  title_1:         HRS STANDARD HIGH VOLTAGE TURN ON
    proposal_for:  OV/HRS
    pi_fname:      JOHN
    pi_lname:      TROELTZSCH
    pi_inst:       BALL AEROSPACE SYSTEMS DIV.
    pi_country:    USA
    pi_phone:      303-939-5781
    keywords_1:    HRS, ORBITAL VERIFICATION
    hours_pri:     5.20
    hrs:           X
    realtime:      X
    time_crit:     X
    pi_position:   OV TEST ENGINEER
! end of coverpage

abstract:

    line_1:        This test defines the standard high voltage turn on procedure for the HRS.
    line_2:        Discriminator thresholds are verified, a short dark count is run, high voltage
    line_3:        is turned on, a full dark count is performed, a focus test is run, and a
    line_4:        photocathode test is executed. This test should be used to turn on high
    line_5:        voltage in OV and SV. It is suggested that some form of this test become the
    line_6:        standard for turning on high voltage for long term operations. Results of the
    line_7:        focus test and the photocathode test will be used to update the final high
    line_8:        voltage value, the tweak current, and the deflection mapping function
    line_9:        coefficients.

!
! end of abstract

general_form_proposers:

  lname:           KRUEGER
    fname:         VERN
    inst:          GODDARD SPACE FLIGHT CENTER
    country:       USA

!

  lname:           GARNER
    fname:         HARRY
    inst:          BALL AEROSPACE SYSTEMS DIV.
    country:       USA

!

  lname:           EBBETS
    fname:         DENNIS
    inst:          BALL AEROSPACE SYSTEMS DIV.
    country:       USA

!

  lname:           WILLIAMS
    fname:         BRUCE
    inst:          BALL AEROSPACE SYSTEMS DIV.
    country:       USA

!

  lname:           TROELTZSCH
    fname:         JOHN
    title:         PI
    inst:          BALL AEROSPACE SYSTEMS DIV.
    country:       USA

!
! end of general_form_proposers block

general_form_text:

  question:        2
    section:       1
    line_1:        HRS OV Objectives:
    line_2:        1. Perform HRS high voltage turn on in a safe and consistent manner.
    line_3:        2. Verify HRS detector performance.

!

  question:        3
    section:       1
    line_1:        A threshold verification is run on side 1 by executing the standard
    line_2:        command block ZMETHRES using stored commands. The results of the verification
    line_3:        are analyzed, and if the verification is not successful thresholds must be
    line_4:        reloaded and verified before the high voltage turn on.
    line_6:        Next, a 70 second dark count is run. Once the dark
    line_7:        count has occurred the HRS will be transitioned from
    line_8:        Hold to Standby to Operate mode on side 1 using standard command blocks.
    line_9:        The hold to standby transition must be activated and monitored via a
    line_10:       real time command link. Following a successful high voltage turn on a standard
    line_11:       18 minute dark count will be executed for side 1. Next, a HRS Focus Test will
    line_12:       be executed for detector 1, followed by the side 1 Photocathode Test. The HRS
    line_13:       will then be transitioned to Standby mode side 1. This entire process will then
    line_14:       be repeated for side 2.

!

  question:        5
    section:       1
    line_1:        This activity turns on HRS high voltage for the first time in OV. Due to the
    line_2:        possibility of detector arcing it is critical that internal HRS pressure is
    line_3:        less than 1 X 10-5 Torr, and realtime command and telemetry links are
    line_4:        available during the turn on. The hold to standby transition must be scheduled
    line_5:        to occur outside of the SAA. There should be a minimum 1 day wait between the
    line_6:        HRS Electronic Dark Count Test and this test.
    line_8:        Prerequisites:
    line_9:        1. HRS Vac/Ion gauge pressure must be <= 1 X 10-5 Torr.
    line_10:       2. Proposal 1455, HRS Electronic Dark Count Test must have been successfully
    line_11:       completed.
    line_14:       Placing the science data on tape at 32KBPS will reduce the readout times for
    line_15:       the SHP, UDL, and data. This sequence is very long and putting the data to
    line_16:       tape will help to shorten it. Although the HRS flow level instructions should
    line_17:       make this decision automatically, the end result must be sci. data to tape at
    line_18:       32K.

!

  question:        5
    section:       2
    line_1:        This is an internal test and does not require any special pointing of the
    line_2:        telescope. During the first high voltage turn on the HRS should be the prime
    line_3:        SI and no background SI activity should be allowed. After orbital operation
    line_4:        experience has been obtained, this activity may occur as a background task.
    line_6:        There is no target list with this proposal.

!

  question:        7
    section:       1
    line_1:        1. Compare the mean count rates for the 500 science diodes, 4 corner diodes, 5
    line_2:        focus diodes, and 2 radiation diodes.
    line_3:        2. Correlate count rates with orbital circumstances.
    line_4:        3. Look for unusually noisy channels or quiet channels.
    line_5:        4. Evaluate the detector focus.
    line_6:        5. The photocathode maps will be analyzed for bad diodes and photocathode
    line_7:        blemishes.
    line_8:        6. Deflection mapping function coefficients will be calculated.

!

  question:        10
    section:       1
    line_1:        1. Test design support
    line_3:        2. Test execution support team
    line_5:        3. Data analysis facilities
    line_7:        4. Data analysis personnel

!
!end of general form text

general_form_address:

  lname:           KRUEGER
    fname:         VERN
    inst:          GODDARD SPACE FLIGHT CENTER
    addr_1:        GSFC CODE 683
    city:          GREENBELT
    state:         MD
    zip:           20771
    country:       USA
    phone:         301-286-5004

!

  lname:           TROELTZSCH
    fname:         JOHN
    category:      PI
    inst:          BALL AEROSPACE SYSTEMS DIV.
    addr_1:        P.O. BOX 1062
    city:          BOULDER
    state:         CO
    zip:           80306
    country:       USA
    phone:         303-939-4816

!
! 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:    USE
    sequence_2:    VTHR1
    req_1:         SEQ 1-2 WITHIN 135M;
    req_2:         RT ANALYSIS;
    comment_1:     VERIFY DISCRIMINATOR THRESHOLDS BY
    comment_2:     EXECUTING ZMETHRES FOR
    comment_3:     SIDE 1 (VERIFY ONLY) USING STORED
    comment_4:     COMMANDS.

!

    linenum:       2.000
    sequence_1:    USE
    sequence_2:    PHOTO1
    req_1:         RT ANALYSIS;
    req_2:         SEQ 2.0-3.0 WITHIN 90M;
    comment_1:     USE HRS DEFAULT OST ZDARKPAT.
    comment_2:     LOW VOLTAGE ONLY.

!

    linenum:       3.000
    sequence_1:    USE
    sequence_2:    HVON1
    req_1:         SEQ 3.0-4.0 NON-INT;
    req_2:         AFTER 2 BY 20M;
    comment_1:     ACTIVATE COMMAND BLOCK ZCOHDSB
    comment_2:     (SIDE 1) VIA GROUND COMMAND.
    comment_3:     REALTIME MONITORING MUST OCCUR
    comment_4:     DURING THIS LINE.

!

    linenum:       4.000
    sequence_1:    USE
    sequence_2:    DARKCNT1
    req_1:         SEQ 4.0-5.0 NO GAP

!

    linenum:       5.000
    sequence_1:    USE
    sequence_2:    VTHR2
    req_1:         SEQ 5.0-6.0 WITHIN 135M;
    req_2:         RT ANALYSIS;
    comment_1:     VERIFY DISCRIMINATOR THRESHOLDS BY
    comment_2:     LOADING AND EXECUTING ZMETHRES FOR
    comment_3:     SIDE 2 (VERIFY ONLY).

!

    linenum:       6.000
    sequence_1:    USE
    sequence_2:    PHOTO2
    req_1:         SEQ 6.0-7.0 WITHIN 90M;
    req_2:         RT ANALYSIS;
    comment_1:     USE HRS DEFAULT OST ZDARKPAT.
    comment_2:     LOW VOLTAGE ONLY.

!

    linenum:       7.000
    sequence_1:    USE
    sequence_2:    HVON2
    req_1:         SEQ 7.0-8.0 NON-INT;
    req_2:         AFTER 6 BY 20M;
    comment_1:     ACTIVATE COMMAND BLOCK ZCOHDSB
    comment_2:     (SIDE 2) VIA GROUND COMMAND.
    comment_3:     REALTIME MONITORING MUST OCCUR
    comment_4:     DURING THIS LINE.

!

    linenum:       8.000
    sequence_1:    USE
    sequence_2:    DARKCNT2
    req_1:         SEQ 8.0-9.0 NO GAP

!

    linenum:       9.000
    sequence_1:    USE
    sequence_2:    VTHR1
    req_1:         SEQ 9.0-10.0 WITHIN 135M;
    req_3:         RT ANALYSIS;
    comment_1:     VERIFY DISCRIMINATOR THRESHOLDS BY
    comment_2:     EXECUTING ZMETHRES FOR
    comment_3:     SIDE 1 (VERIFY ONLY) USING STORED
    comment_4:     COMMANDS.

!

    linenum:       10.000
    sequence_1:    USE
    sequence_2:    PHOTO1
    req_1:         RT ANALYSIS;
    req_2:         SEQ 10.0-11.0 WITHIN 90M;
    comment_1:     USE HRS DEFAULT OST ZDARKPAT.
    comment_2:     LOW VOLTAGE ONLY.

!

    linenum:       11.000
    sequence_1:    USE
    sequence_2:    HVON1
    req_1:         SEQ 11-12 NON-INT;
    req_2:         AFTER 10 BY 20M;
    comment_1:     ACTIVATE COMMAND BLOCK ZCOHDSB
    comment_2:     (SIDE 1) VIA GROUND COMMAND.
    comment_3:     REALTIME MONITORING MUST OCCUR
    comment_4:     DURING THIS LINE.

!

    linenum:       12.000
    sequence_1:    USE
    sequence_2:    DARKCNT1
    req_1:         SEQ 12.0-13.0 NO GAP;
    comment_1:     PLACE DATA ON TAPE AT 32KBPS.

!

    linenum:       13.000
    sequence_1:    USE
    sequence_2:    VTHR2
    req_1:         SEQ 13.0-14.0 WITHIN 135M;
    req_2:         RT ANALYSIS;
    comment_1:     VERIFY DISCRIMINATOR THRESHOLDS BY
    comment_2:     LOADING AND EXECUTING ZMETHRES FOR
    comment_3:     SIDE 2 (VERIFY ONLY).

!

    linenum:       14.000
    sequence_1:    USE
    sequence_2:    PHOTO2
    req_1:         SEQ 14.0-15.0 WITHIN 90M;
    req_2:         RT ANALYSIS;
    comment_1:     USE HRS DEFAULT OST ZDARKPAT.
    comment_2:     LOW VOLTAGE ONLY.

!

    linenum:       15.000
    sequence_1:    USE
    sequence_2:    HVON2
    req_1:         SEQ 15.0-16.0 NON-INT;
    req_2:         AFTER 14 BY 20M;
    comment_1:     ACTIVATE COMMAND BLOCK ZCOHDSB
    comment_2:     (SIDE 2) VIA GROUND COMMAND.
    comment_3:     REALTIME MONITORING MUST OCCUR
    comment_4:     DURING THIS LINE.

!

    linenum:       16.000
    sequence_1:    USE
    sequence_2:    DARKCNT2

!

    linenum:       17.000
    targname:      DARK
    config:        S/C
    opmode:        DATA
    aperture:      NONE
    num_exp:       1
    time_per_exp:  10M
    priority:      1
    param_1:       REALTIME=CMD
    req_1:         AFTER 16.0 BY 12H;
    comment_1:     COMMAND OPPORTUNITY TO SET EVENT
    comment_2:     FLAG TO SIGNAL STORED COMMANDING TO
    comment_3:     PROCEED OTHERWISE TO SAFE.

!

    linenum:       101.000
    sequence_1:    DEFINE
    sequence_2:    VTHR1
    targname:      DARK
    config:        HRS
    opmode:        THRESHOLD
    sp_element:    SAFE1
    num_exp:       1
    time_per_exp:  14M
    priority:      1
    param_1:       FUNCTION=VERIFY,
    param_2:       HIGH-VOLTAGE=OFF,
    comment_1:     VERIFY DISCRIMINATOR THRESHOLDS BY
    comment_2:     EXECUTING ZMETHRES FOR
    comment_3:     SIDE 1 (VERIFY ONLY) USING STORED
    comment_4:     COMMANDS.

!

    linenum:       102.000
    sequence_1:    DEFINE
    sequence_2:    PHOTO1
    targname:      DARK
    config:        HRS
    opmode:        PHOTOSCAN
    aperture:      NONE
    sp_element:    SAFE1
    num_exp:       1
    time_per_exp:  70S
    priority:      1
    param_1:       TYPE=SHORT-X,
    param_2:       SPACING=0,
    param_3:       HIGH-VOLTAGE=OFF,
    comment_1:     USE HRS DEFAULT OST ZDARKPAT.
    comment_2:     LOW VOLTAGE ONLY.

!

    linenum:       103.000
    sequence_1:    DEFINE
    sequence_2:    HVON1
    targname:      DARK
    config:        S/C
    opmode:        DATA
    aperture:      NONE
    num_exp:       1
    time_per_exp:  25M
    priority:      1
    param_1:       REALTIME=YES,
    param_2:       FORMAT=AN,
    comment_1:     ACTIVATE COMMAND BLOCK ZCOHDSB
    comment_2:     (SIDE 1) VIA GROUND COMMAND.
    comment_3:     REALTIME MONITORING MUST OCCUR
    comment_4:     DURING THIS LINE.

!

    linenum:       104.000
    sequence_1:    DEFINE
    sequence_2:    DARKCNT1
    targname:      DARK
    config:        HRS
    opmode:        PHOTOSCAN
    aperture:      NONE
    sp_element:    SAFE1
    num_exp:       16
    time_per_exp:  70S
    priority:      1
    param_1:       TYPE=SHORT-X,
    param_2:       SPACING=0,
    req_1:         NON-INT;
    comment_1:     USE HRS DEFAULT OST ZDARKPAT.

!

    linenum:       105.000
    sequence_1:    DEFINE
    sequence_2:    VTHR2
    targname:      DARK
    config:        HRS
    opmode:        THRESHOLD
    sp_element:    SAFE2
    num_exp:       1
    time_per_exp:  14M
    priority:      1
    param_1:       FUNCTION=VERIFY,
    param_2:       HIGH-VOLTAGE=OFF,
    comment_1:     VERIFY DISCRIMINATOR THRESHOLDS BY
    comment_2:     LOADING AND EXECUTING ZMETHRES FOR
    comment_3:     SIDE 2 (VERIFY ONLY).

!

    linenum:       106.000
    sequence_1:    DEFINE
    sequence_2:    PHOTO2
    targname:      DARK
    config:        HRS
    opmode:        PHOTOSCAN
    aperture:      NONE
    sp_element:    SAFE2
    num_exp:       1
    time_per_exp:  70S
    priority:      1
    param_1:       TYPE=SHORT-X,
    param_2:       SPACING=0,
    param_3:       HIGH-VOLTAGE=OFF,
    comment_1:     USE HRS DEFAULT OST ZDARKPAT.
    comment_2:     LOW VOLTAGE ONLY.

!

    linenum:       107.000
    sequence_1:    DEFINE
    sequence_2:    HVON2
    targname:      DARK
    config:        S/C
    opmode:        DATA
    aperture:      NONE
    num_exp:       1
    time_per_exp:  25M
    priority:      1
    param_1:       REALTIME=YES,
    param_2:       FORMAT=AN,
    comment_1:     ACTIVATE COMMAND BLOCK ZCOHDSB
    comment_2:     (SIDE 2) VIA GROUND COMMAND.
    comment_3:     REALTIME MONITORING MUST OCCUR
    comment_4:     DURING THIS LINE.

!

    linenum:       108.000
    sequence_1:    DEFINE
    sequence_2:    DARKCNT2
    targname:      DARK
    config:        HRS
    opmode:        PHOTOSCAN
    aperture:      NONE
    sp_element:    SAFE2
    num_exp:       16
    time_per_exp:  70S
    priority:      1
    param_1:       TYPE=SHORT-X,
    param_2:       SPACING=0,
    req_1:         NON-INT;
    comment_1:     USE HRS DEFAULT OST ZDARKPAT.

!

    linenum:       205.000
    targname:      DARK
    config:        HRS
    opmode:        THRESHOLD
    sp_element:    SAFE1
    num_exp:       1
    time_per_exp:  14M
    priority:      1
    param_1:       FUNCTION=VERIFY,
    param_2:       HIGH-VOLTAGE=OFF,
    req_1:         AFTER 17;
    req_2:         SEQ 205-218 NO GAP;
    comment_1:     VERIFY DISCRIMINATOR THRESHOLDS BY
    comment_2:     EXECUTING ZMETHRES FOR
    comment_3:     SIDE 1 (VERIFY ONLY) USING STORED
    comment_4:     COMMANDS.

!

    linenum:       206.000
    sequence_1:    USE
    sequence_2:    DARKCNT
    sp_element:    SAFE1

!

    linenum:       207.000
    sequence_1:    USE FOCUS
    sp_element:    SAFE1
    comment_1:     SET DETECTOR 1 TWEAK VALUE TO OCTAL
    comment_2:     170.

!

    linenum:       208.000
    sequence_1:    USE FOCUS
    sp_element:    SAFE1
    comment_1:     SET DETECTOR 1 TWEAK VALUE TO OCTAL
    comment_2:     174.

!

    linenum:       209.000
    sequence_1:    USE FOCUS
    sp_element:    SAFE1
    comment_1:     SET DETECTOR 1 TWEAK VALUE TO OCTAL
    comment_2:     204.

!

    linenum:       210.000
    sequence_1:    USE FOCUS
    sp_element:    SAFE1
    comment_1:     SET DETECTOR 1 TWEAK VALUE TO OCTAL
    comment_2:     210.

!

    linenum:       211.000
    sequence_1:    USE FOCUS
    sp_element:    SAFE1
    comment_1:     SET DETECTOR 1 TWEAK VALUE TO THE
    comment_2:     SIDE 1 DEFAULT VALUE.

!

    linenum:       215.000
    sequence_1:    USE PMAP
    sp_element:    SAFE1

!

    linenum:       216.000
    sequence_1:    USE
    sequence_2:    MSKSCN
    sp_element:    SAFE1

!

    linenum:       217.000
    sequence_1:    USE
    sequence_2:    TOPBOTSCN
    sp_element:    SAFE1
    param_1:       TYPE=LONG-Y,
    param_2:       Y=375,
    param_3:       SPACING=1,
    comment_1:     INITIAL Y = 260

!

    linenum:       218.000
    sequence_1:    USE
    sequence_2:    TOPBOTSCN
    sp_element:    SAFE1
    param_1:       TYPE=LONG-Y,
    param_2:       Y=3772,
    param_3:       SPACING=1,
    comment_1:     INITIAL Y = 3657

!

    linenum:       221.000
    targname:      DARK
    config:        HRS
    opmode:        THRESHOLD
    sp_element:    SAFE2
    num_exp:       1
    time_per_exp:  14M
    priority:      1
    param_1:       FUNCTION=VERIFY,
    param_2:       HIGH-VOLTAGE=OFF
    req_1:         AFTER 17;
    req_2:         SEQ 221-231 NO GAP;
    comment_1:     VERIFY DISCRIMINATOR THRESHOLDS BY
    comment_2:     LOADING AND EXECUTING ZMETHRES FOR
    comment_3:     SIDE 2 (VERIFY ONLY).

!

    linenum:       222.000
    sequence_1:    USE
    sequence_2:    DARKCNT
    sp_element:    SAFE2

!

    linenum:       223.000
    sequence_1:    USE FOCUS
    sp_element:    SAFE2
    comment_1:     SET DETECTOR 2 TWEAK VALUE TO OCTAL
    comment_2:     170.

!

    linenum:       224.000
    sequence_1:    USE FOCUS
    sp_element:    SAFE2
    comment_1:     SET DETECTOR 2 TWEAK VALUE TO OCTAL
    comment_2:     174.

!

    linenum:       225.000
    sequence_1:    USE FOCUS
    sp_element:    SAFE2
    comment_1:     SET DETECTOR 2 TWEAK VALUE TO OCTAL
    comment_2:     204.

!

    linenum:       226.000
    sequence_1:    USE FOCUS
    sp_element:    SAFE2
    comment_1:     SET DETECTOR 2 TWEAK VALUE TO OCTAL
    comment_2:     210.

!

    linenum:       227.000
    sequence_1:    USE FOCUS
    sp_element:    SAFE2
    comment_1:     SET DETECTOR 2 TWEAK VALUE TO THE
    comment_2:     SIDE 2 DEFAULT VALUE.

!

    linenum:       228.000
    sequence_1:    USE
    sequence_2:    PMAP
    sp_element:    SAFE2

!

    linenum:       229.000
    sequence_1:    USE
    sequence_2:    MSKSCN
    sp_element:    SAFE2

!

    linenum:       230.000
    sequence_1:    USE
    sequence_2:    TOPBOTSCN
    sp_element:    SAFE2
    param_1:       TYPE=LONG-Y,
    param_2:       SPACING=1,
    param_3:       Y=253,
    comment_1:     INITIAL Y = 138

!

    linenum:       231.000
    sequence_1:    USE
    sequence_2:    TOPBOTSCN
    sp_element:    SAFE2
    param_1:       TYPE=LONG-Y,
    param_2:       Y=3706,
    param_3:       SPACING=1,
    comment_1:     INITIAL Y = 3591

!

    linenum:       304.000
    sequence_1:    DEFINE
    sequence_2:    DARKCNT
    targname:      DARK
    config:        HRS
    opmode:        PHOTOSCAN
    aperture:      NONE
    sp_element:    #
    num_exp:       16
    time_per_exp:  70S
    priority:      1
    param_1:       TYPE=SHORT-X,
    param_2:       SPACING=0,
    req_1:         NON-INT;
    comment_1:     USE HRS DEFAULT OST ZDARKPAT.

!

    linenum:       306.000
    sequence_1:    DEFINE
    sequence_2:    FOCUS
    targname:      INTFLAT
    config:        HRS
    opmode:        PHOTOSCAN
    aperture:      NONE
    sp_element:    #
    num_exp:       1
    time_per_exp:  231S
    priority:      1
    param_1:       TYPE=LONG-X,
    param_2:       X=1737,
    param_3:       SPACING=1
    comment_1:     USE DEFAULT OST ZLONGSCNX WITH
    comment_2:     INITIAL DEFLECTIONS X=1622,Y=2048,
    comment_3:     DELTA X=1. GENERATES 33 LINES OF DATA.

!

    linenum:       312.000
    sequence_1:    DEFINE
    sequence_2:    MSKSCN
    targname:      INTFLAT
    config:        HRS
    opmode:        PHOTOSCAN
    aperture:      NONE
    sp_element:    #
    num_exp:       1
    time_per_exp:  196S
    s_to_n:        50
    priority:      1
    param_1:       TYPE=MASK,
    comment_1:     USE DEFAULT OST ZMASKSCN. GENERATES 28
    comment_2:     LINES OF DATA.

!

    linenum:       313.000
    sequence_1:    DEFINE
    sequence_2:    PMAP
    targname:      INTFLAT
    config:        HRS
    opmode:        PHOTOSCAN
    aperture:      NONE
    sp_element:    #
    num_exp:       1
    time_per_exp:  231S
    s_to_n:        50
    priority:      1
    param_1:       TYPE=LONG-Y,
    param_2:       Y=2096,
    param_3:       SPACING=16,
    comment_1:     USE DEFAULT OST ZLONGSCNY WITH INITIAL
    comment_2:     DEFLECTIONS X=2048,Y=256,DELTA Y=16.
    comment_3:     GENERATES 33 LINES OF DATA.

!

    linenum:       314.000
    sequence_1:    DEFINE
    sequence_2:    TOPBOTSCN
    targname:      INTFLAT
    config:        HRS
    opmode:        PHOTOSCAN
    aperture:      NONE
    sp_element:    #
    num_exp:       1
    time_per_exp:  231S
    s_to_n:        50
    priority:      1
    param_1:       #
    comment_1:     USE DEFAULT OST ZLONGSCNY WITH INITIAL
    comment_2:     DEFLECTIONS X=2048,Y=TO BE SPECIFIED
    comment_3:     FOR EACH DETECTOR, DELTA Y=1.
    comment_4:     GENERATES 33 LINES OF DATA.

!
! end of exposure logsheet

! No scan data records found