!  File:  3169C.PROP
!  Database:  PEPDB
!  Date:  18-FEB-1994:20:18:59

coverpage:

  title_1:         PSEA PASSIVE CHECK / RMGA CALIBRATION
    proposal_for:  ENG
    pi_fname:      WILLIAM
    pi_lname:      OCHS
    pi_inst:       CODE 440
    pi_country:    USA
    num_pri:       1
! end of coverpage

abstract:

    line_1:        This proposal will acquire data to be used to validate
    line_2:        proper scaling and polarities of the inputs used and
    line_3:        outputs produced by the Pointing Safemode Electronics
    line_4:        Assembly (PSEA). This provides the backup attitude
    line_5:        control function in the event of a serious  problem
    line_6:        with the DF224 computer. The PSEA will be placed in test
    line_7:        mode which will power the safemode computer but will
    line_8:        inhibit the output of commands to the reaction wheels
    line_9:        and magnetic torquers. Small 5deg maneuvers will be
    line_10:       executed about each vehicle axis to provide the necessary
    line_11:       input torques.
    line_12:       After the polarity slews are completed
    line_13:       a bias estimate of the Retrieval Mode Gyro Assembly
    line_14:       (RMGA) will be made by again placing the PSEA in test
    line_15:       mode. FHST maps will be used to obtain an attitude
    line_16:       reference. The resulting biases will be uplinked to
    line_17:       the PSEA.

!
! end of abstract

general_form_proposers:

  lname:           OCHS
    fname:         WM.
    inst:          GFSC/CODE 441
    country:       USA
    esa:           X

!
! end of general_form_proposers block

general_form_text:

  question:        2
    section:       1
    line_1:        The Pointing Safemode Assembly provides the backup
    line_2:        attitude control function in the event of a serious  problem
    line_3:        with the DF224 computer. The PSEA uses coarse sun sensors,
    line_4:        rate gyro assembly (RGA), and if required the retrieval mode
    line_5:        gyro assembly (RMGA) as inputs and produces commands to the
    line_6:        reaction wheels and magnetic torquers. It is imperative
    line_7:        that the scaling and polarities of the input signals be
    line_8:        correct to ensure proper performance of the system.
    line_9:        Although the phasing tests were performed before launch,
    line_10:       they were limited by the fact that the vehicle could not
    line_11:       actually be maneuvered on the ground. The PSEA Safemode
    line_12:       Computer (SMC) is normally powered off. The PSEA upon loss
    line_13:       of keep-alive signals from the DF224, will power the SMC and
    line_14:       the HST will enter hardware sunpoint mode. Since the HST has
    line_15:       not been in hardware sunpoint mode since launch, there has
    line_16:       been no opportunity on-orbit to do this evaluation. Phasing
    line_17:       informationi can be obtained on-orbit by using the PSEA
    line_18:       test mode. When in this mode, the PSEA will power the SMC
    line_19:       and all calculations are performed , however, the command
    line_20:       outputs are inhibited.

!

  question:        3
    section:       1
    line_1:        This information is important to provide confidence in the
    line_2:        backup attitude control system. Should problems arise, the
    line_3:        entire safemode strategy may change and the maintenance
    line_4:        mission ORU complement may be affected.
    line_5:        In addition to obtaining polarity information on the PSEA
    line_6:        input and output signals, a bias estimate of the RMGA's
    line_7:        will be obtained. The FHST's will be placed in map mode
    line_8:        to obtain an attitude reference and PSEA test mode will again
    line_9:        be used to enable the SMC. The PASS system will process the
    line_10:       data and produce biases in the vehicle frame which will be
    line_11:       uplinked to the PSEA. These data are important to ensure
    line_12:       proper attitude control should gyro failures  force the
    line_13:       PSEA to use the RMGA. This is particularly important in the
    line_14:       case of gravity gradient mode, which is more sensitive to
    line_15:       bias errors.

!

  question:        3
    section:       2
    line_1:        Format T is required for all PSEA data takes. The format
    line_2:        T tables will be loaded into the DF224, dumped and verified.
    line_3:        IMPORTANT NOTE: Format T overlays formats P and F. The
    line_4:        stored program command (SPC) group normally used to initiate
    line_5:        format P can be used to activate T, however, if attempts
    line_6:        to switch to F format an entry into hardware sunpoint will
    line_7:        most likely occur. Therefore, no switches to F format should
    line_8:        be placed in the command loads following this test for a
    line_9:        reasonable period of time to allow the STOCC to reload P & F.
    line_11:       HST will be slewed to a +V3 to the sun attitude. The RMGA
    line_12:       will be powered by real-time commands and allowed to
    line_13:       warm up for a minimum of 5 mins. RTS'c will be used to set
    line_14:       up TMDIAG's in the PSEA.
    line_16:       A minimum of 5 mins. after entry into orbit day, the STOCC
    line_17:       will begin issuing soft-keep alive disable commands to the
    line_18:       PSEA to prevent entry into hardware sunpoint. These commands
    line_19:       are automatically issued every 30secs by the online system.
    line_20:       PSEA test mode will be commanded by the RTC. A  5 deg. slew
    line_21:       about the +V3 axis will be executed from SPC. This will be
    line_22:       followed by similar slews about the -V3, +/- V2, +/- V1
    line_23:       axes in that order.

!

  question:        3
    section:       3
    line_1:        Ideally these slews will be back-to-back , but may be
    line_2:        spread apart subject to the constraints listed below. When
    line_3:        the final slew is complete, test mode and soft disable
    line_4:        commands will be terminated. If the slews are spread apart
    line_5:        in time by a significant amount and/or continuous forward
    line_6:        links are not available, test mode initiate and soft disable
    line_7:        commands will be terminated between the slews.
    line_9:        CONSTRAINT 1: Continuous forward link is required whenever
    line_10:       the PSEA is in test mode. THis is necessary to keep the soft
    line_11:       keep-alive disable commands and the test mde initiate commands
    line_12:       going.
    line_14:       CONSTRAINT 2: The HST must be in full sunlight whenever test
    line_15:       mode is active. Test mode is active for 73 secs following the
    line_16:       test mode initiate command. THis is required to prevent the
    line_17:       PSEA from closing the aperture door.
    line_19:       During the next nite period, the PSEA will be configured to
    line_20:       the B-side. In the following daylight period, the test mode/
    line_21:       6 maneuver sequence will be repeated.

!

  question:        3
    section:       4
    line_1:        At the beginning of the next daylight period, 2 FHST's will
    line_2:        be placed in map mode for a 25 min. period by SPC. Soft
    line_3:        keep-alive disable commands will be sent every 30 secs.
    line_4:        for the duration of the test mde. Test mode will then be
    line_5:        commanded by RTC for a 20 min. period to obtain bias info.
    line_6:        for the RMGA calibration. At the completion of the 20 min.
    line_7:        period, test mode and soft keep-alive disable commands will
    line_8:        be terminated. A backup period of FHST mapping and forward
    line_9:        link opportunity will be scheduled in a subsequent orbit.
    line_10:       The vehicle must be stationary thruout this period.
    line_12:       After completion of this test mode, the RMGA's will be turned
    line_13:       off. Format F and P tables will then be uplinked and verified.

!

  question:        5
    section:       1
    line_1:        6 slews are required to obtain a complete set of vehicle
    line_2:        rotations. Loading T format does impact operations
    line_3:        by eliminating the possibility of using P and F formats.
    line_5:        The 20 min. period requested for RMGA calibraton is a
    line_6:        tradeoff between obtaining adequate data for a bias
    line_7:        estimation and the orbital and communication constraints.
    line_9:        Continuous forward link required whenever the PSEA is in
    line_10:       test mode. The PSEA will automatically exit out of the test
    line_11:       mode, 73 secs. after the test mode initiate command is
    line_12:       received. The PSTOL proc issues this command every 73 secs.

!

  question:        7
    section:       1
    line_1:        Results will be processed by the STOCC ESS system, and
    line_2:        compared against predicted values by the LMSC.

!
!end of general form text

general_form_address:

  lname:           OCHS
    fname:         WM.
    category:      PI
    inst:          GFSC/CODE 441

!
! end of general_form_address records

fixed_targets:

    targnum:       1
    name_1:        SEP
    descr_1:       S.ECLIPTIC POLE
    pos_1:         RA = 270.0D  +/- .1",
    pos_2:         DEC = -66.500D +/- .01"
    equinox:       1990

!
! end of fixed targets

! No solar system records found

! No generic target records found

exposure_logsheet:

    linenum:       1.000
    targname:      SEP
    config:        S/C
    opmode:        POINTING
    aperture:      V1
    num_exp:       1
    time_per_exp:  1S
    fluxnum_1:     1
    priority:      1
    param_1:       CONTROL=GYRO
    req_1:         CYCLE 0 / 1-35;
    comment_1:     SLEW TO TARGET, AND SLEW
    comment_2:     S/A'S TO +/- 3DEGS TO SUN
    comment_3:     NORMAL VIA SPC.

!

    linenum:       2.000
    targname:      SEP
    config:        S/C
    opmode:        DATA
    aperture:      V1
    num_exp:       1
    time_per_exp:  25M
    fluxnum_1:     1
    priority:      1
    param_1:       CONTROL=GYRO
    req_1:         AFTER 1 BY 10M+/-5M;
    req_2:         RT ANALYSIS;
    req_3:         REQ UPLINK;
    comment_1:     UPLINK REQ'D TO DUMP ETR.
    comment_2:     LOAD AND DUMP "T" FORMAT
    comment_3:     AND PATCH SUN ANGLE SA
    comment_4:     NORMAL SAFEMODE LIMIT TO
    comment_5:     12 DEGS VIA RTC'S.

!

    linenum:       3.000
    targname:      SEP
    config:        S/C
    opmode:        POINTING
    aperture:      V1
    num_exp:       1
    time_per_exp:  1S
    fluxnum_1:     1
    priority:      1
    param_1:       CONTROL=GYRO,
    req_2:         AFTER 2 BY 20M+/-5M;
    comment_1:     SWITCH TO "T" FORMAT VIA
    comment_2:     SPC, USING MOCMERGE SMS

!

    linenum:       4.000
    targname:      SEP
    config:        S/C
    opmode:        DATA
    aperture:      V1
    num_exp:       1
    time_per_exp:  20M
    fluxnum_1:     1
    priority:      1
    param_1:       CONTROL=GYRO,
    req_1:         AFTER 3 BY 10M+/-5M;
    req_2:         RT ANALYSIS;
    req_3:         REQ UPLINK;
    comment_1:     UPLINK REQ'D TO COMMAND
    comment_2:     POWER ON TO RMGA'S AND
    comment_3:     SELECT REQ'D TLMDIAGS IN
    comment_4:     PSEA

!

    linenum:       5.000
    sequence_1:    DEFINE
    sequence_2:    PSEA-A
    targname:      SEP
    config:        S/C
    opmode:        DATA
    aperture:      V1
    num_exp:       1
    time_per_exp:  1S
    fluxnum_1:     1
    priority:      1
    param_1:       CONTROL=GYRO,
    req_1:         CRIT OBS;
    req_2:         SEQ 5-8 NO GAP;
    req_3:         NON-INT;
    comment_1:     COLLECT/REC "T" FORMAT
    comment_2:     DATA FROM LINES 5-8. TO
    comment_3:     BE DONE DURING 1 SUNLITE
    comment_4:     ORBIT.

!

    linenum:       6.000
    sequence_1:    DEFINE
    sequence_2:    PSEA-A
    targname:      SEP
    config:        S/C
    opmode:        DATA
    aperture:      V1
    num_exp:       1
    time_per_exp:  1S
    fluxnum_1:     1
    priority:      1
    param_1:       CONTROL=GYRO,
    req_1:         RT ANALYSIS;
    req_2:         REQ UPLINK;
    comment_1:     UPLINK REQ'D TO COMMAND
    comment_2:     PSEA TEST MODE FROM 6-8

!

    linenum:       7.000
    sequence_1:    DEFINE
    sequence_2:    PSEA-A
    targname:      SEP
    config:        S/C
    opmode:        POINTING
    aperture:      V1
    num_exp:       1
    time_per_exp:  1S
    fluxnum_1:     1
    priority:      1
    param_1:       CONTROL=GYRO,
    req_1:         CRIT OBS;
    req_2:         POS TARG -18000.,0.0
    comment_1:     SLEW TO TARG +5 DEGS
    comment_2:     ABOUT V3 VIA SPC.

!

    linenum:       8.000
    sequence_1:    DEFINE
    sequence_2:    PSEA-A
    targname:      SEP
    config:        S/C
    opmode:        POINTING
    aperture:      V1
    num_exp:       1
    time_per_exp:  1S
    fluxnum_1:     1
    priority:      1
    param_1:       CONTROL=GYRO,
    req_1:         CRIT OBS;
    req_2:         POS TARG 0.0,0.0;
    req_3:         AFTER 7 BY 5M +/- 5M;
    comment_1:     SLEW TO TARG -5 DEGS
    comment_2:     TO NOMINAL, ABOUT V3.
    comment_3:     COMPLETE 8 NO LATER THAN
    comment_4:     5 MINS PRIOR TO ENTER
    comment_5:     ORBIT NITE.

!

    linenum:       9.000
    sequence_1:    DEFINE
    sequence_2:    PSEA-A
    targname:      SEP
    config:        S/C
    opmode:        DATA
    aperture:      V1
    num_exp:       1
    time_per_exp:  1S
    fluxnum_1:     1
    priority:      1
    param_1:       CONTROL=GYRO,
    req_1:         CRIT OBS;
    req_2:         SEQ 9-12 NO GAP;
    req_3:         NON-INT;
    comment_1:     COLLECT/REC "T" FORMAT
    comment_2:     DATA FROM LINES 9-12. TO
    comment_3:     BE DONE DURING 1 SUNLITE
    comment_4:     ORBIT.

!

    linenum:       10.000
    sequence_1:    DEFINE
    sequence_2:    PSEA-A
    targname:      SEP
    config:        S/C
    opmode:        DATA
    aperture:      V1
    num_exp:       1
    time_per_exp:  1S
    fluxnum_1:     1
    priority:      1
    param_1:       CONTROL=GYRO,
    req_1:         RT ANALYSIS;
    req_2:         REQ UPLINK;
    comment_1:     UPLINK REQ'D TO COMMAND
    comment_2:     PSEA TEST MODE FROM 10-12

!

    linenum:       11.000
    sequence_1:    DEFINE
    sequence_2:    PSEA-A
    targname:      SEP
    config:        S/C
    opmode:        POINTING
    aperture:      V1
    num_exp:       1
    time_per_exp:  1S
    fluxnum_1:     1
    priority:      1
    param_1:       CONTROL=GYRO,
    req_1:         CRIT OBS;
    req_2:         POS TARG 0.0,-18000.
    comment_1:     SLEW TO TARG +5 DEGS
    comment_2:     ABOUT V2 VIA SPC.

!

    linenum:       12.000
    sequence_1:    DEFINE
    sequence_2:    PSEA-A
    targname:      SEP
    config:        S/C
    opmode:        POINTING
    aperture:      V1
    num_exp:       1
    time_per_exp:  1S
    fluxnum_1:     1
    priority:      1
    param_1:       CONTROL=GYRO,
    req_1:         CRIT OBS;
    req_2:         POS TARG 0.0,0.0;
    req_3:         AFTER 11 BY 5M +/- 5M;
    comment_1:     SLEW TO TARG -5 DEGS
    comment_2:     TO NOMINAL, ABOUT V2.
    comment_3:     COMPLETE 12 NO LATER THAN
    comment_4:     5 MINS PRIOR TO ENTER
    comment_5:     ORBIT NITE.

!

    linenum:       13.000
    sequence_1:    DEFINE
    sequence_2:    PSEA-A
    targname:      SEP
    config:        S/C
    opmode:        DATA
    aperture:      V1
    num_exp:       1
    time_per_exp:  1S
    fluxnum_1:     1
    priority:      1
    param_1:       CONTROL=GYRO,
    req_1:         CRIT OBS;
    req_2:         SEQ 13-16 NO GAP;
    req_3:         NON-INT;
    comment_1:     COLLECT/REC "T" FORMAT
    comment_2:     DATA FROM LINES 13-16. TO
    comment_3:     BE DONE DURING 1 SUNLITE
    comment_4:     ORBIT.

!

    linenum:       14.000
    sequence_1:    DEFINE
    sequence_2:    PSEA-A
    targname:      SEP
    config:        S/C
    opmode:        DATA
    aperture:      V1
    num_exp:       1
    time_per_exp:  1S
    fluxnum_1:     1
    priority:      1
    param_1:       CONTROL=GYRO,
    req_1:         RT ANALYSIS;
    req_2:         REQ UPLINK;
    comment_1:     UPLINK REQ'D TO COMMAND
    comment_2:     PSEA TEST MODE FROM 14-16

!

    linenum:       15.000
    sequence_1:    DEFINE
    sequence_2:    PSEA-A
    targname:      SEP
    config:        S/C
    opmode:        POINTING
    aperture:      V1
    num_exp:       1
    time_per_exp:  1S
    fluxnum_1:     1
    priority:      1
    param_1:       CONTROL=GYRO,
    req_1:         CRIT OBS;
    req_2:         ORIENT 5D +/- .5D
    req_3:         FROM NOMINAL;
    comment_1:     SLEW TO TARG +5 DEGS
    comment_2:     ABOUT V1 VIA SPC.

!

    linenum:       16.000
    sequence_1:    DEFINE
    sequence_2:    PSEA-A
    targname:      SEP
    config:        S/C
    opmode:        POINTING
    aperture:      V1
    num_exp:       1
    time_per_exp:  1S
    fluxnum_1:     1
    priority:      1
    param_1:       CONTROL=GYRO,
    req_1:         CRIT OBS;
    req_2:         AFTER 15 BY 5M +/- 5M;
    comment_1:     SLEW TO TARG -5 DEGS
    comment_2:     TO NOMINAL, ABOUT V1.
    comment_3:     COMPLETE 12 NO LATER THAN
    comment_4:     5 MINS PRIOR TO ENTER
    comment_5:     ORBIT NITE.

!

    linenum:       16.500
    sequence_1:    USE
    sequence_2:    PSEA-A

!

    linenum:       17.000
    targname:      SEP
    config:        S/C
    opmode:        DATA
    aperture:      V1
    num_exp:       1
    time_per_exp:  20M
    fluxnum_1:     1
    priority:      1
    param_1:       CONTROL=GYRO,
    req_1:         AFTER 16.5 BY 60M+/-50M;
    req_2:         RT ANALYSIS;
    req_3:         REQ UPLINK;
    comment_1:     UPLINK REQ'D TO COMMAND
    comment_2:     PSEA AND SMC-B.

!

    linenum:       18.000
    sequence_1:    DEFINE
    sequence_2:    PSEA-B
    targname:      SEP
    config:        S/C
    opmode:        DATA
    aperture:      V1
    num_exp:       1
    time_per_exp:  1S
    fluxnum_1:     1
    priority:      1
    param_1:       CONTROL=GYRO,
    req_1:         CRIT OBS;
    req_2:         SEQ 18-21 NO GAP;
    req_3:         NON-INT;
    comment_1:     COLLECT/REC "T" FORMAT
    comment_2:     DATA FROM LINES 18-21. TO
    comment_3:     BE DONE DURING 1 SUNLITE
    comment_4:     ORBIT.

!

    linenum:       19.000
    sequence_1:    DEFINE
    sequence_2:    PSEA-B
    targname:      SEP
    config:        S/C
    opmode:        DATA
    aperture:      V1
    num_exp:       1
    time_per_exp:  1S
    fluxnum_1:     1
    priority:      1
    param_1:       CONTROL=GYRO,
    req_1:         RT ANALYSIS;
    req_2:         REQ UPLINK;
    comment_1:     UPLINK REQ'D TO COMMAND
    comment_2:     PSEA TEST MODE FROM 19-21

!

    linenum:       20.000
    sequence_1:    DEFINE
    sequence_2:    PSEA-B
    targname:      SEP
    config:        S/C
    opmode:        POINTING
    aperture:      V1
    num_exp:       1
    time_per_exp:  1S
    fluxnum_1:     1
    priority:      1
    param_1:       CONTROL=GYRO,
    req_1:         CRIT OBS;
    req_2:         POS TARG -18000.,0.0
    comment_1:     SLEW TO TARG +5 DEGS
    comment_2:     ABOUT V3 VIA SPC.

!

    linenum:       21.000
    sequence_1:    DEFINE
    sequence_2:    PSEA-B
    targname:      SEP
    config:        S/C
    opmode:        POINTING
    aperture:      V1
    num_exp:       1
    time_per_exp:  1S
    fluxnum_1:     1
    priority:      1
    param_1:       CONTROL=GYRO,
    req_1:         CRIT OBS;
    req_2:         POS TARG 0.0,0.0;
    req_3:         AFTER 20 BY 5M +/- 5M;
    comment_1:     SLEW TO TARG -5 DEGS
    comment_2:     TO NOMINAL, ABOUT V3.
    comment_3:     COMPLETE 21 NO LATER THAN
    comment_4:     5 MINS PRIOR TO ENTER
    comment_5:     ORBIT NITE.

!

    linenum:       22.000
    sequence_1:    DEFINE
    sequence_2:    PSEA-B
    targname:      SEP
    config:        S/C
    opmode:        DATA
    aperture:      V1
    num_exp:       1
    time_per_exp:  1S
    fluxnum_1:     1
    priority:      1
    param_1:       CONTROL=GYRO,
    req_1:         CRIT OBS;
    req_2:         SEQ 22-25 NO GAP;
    req_3:         NON-INT;
    comment_1:     COLLECT/REC "T" FORMAT
    comment_2:     DATA FROM LINES 22-25. TO
    comment_3:     BE DONE DURING 1 SUNLITE
    comment_4:     ORBIT.

!

    linenum:       23.000
    sequence_1:    DEFINE
    sequence_2:    PSEA-B
    targname:      SEP
    config:        S/C
    opmode:        DATA
    aperture:      V1
    num_exp:       1
    time_per_exp:  1S
    fluxnum_1:     1
    priority:      1
    param_1:       CONTROL=GYRO,
    req_1:         RT ANALYSIS;
    req_2:         REQ UPLINK;
    comment_1:     UPLINK REQ'D TO COMMAND
    comment_2:     PSEA TEST MODE FROM 23-25

!

    linenum:       24.000
    sequence_1:    DEFINE
    sequence_2:    PSEA-B
    targname:      SEP
    config:        S/C
    opmode:        POINTING
    aperture:      V1
    num_exp:       1
    time_per_exp:  1S
    fluxnum_1:     1
    priority:      1
    param_1:       CONTROL=GYRO,
    req_1:         CRIT OBS;
    req_2:         POS TARG 0.0,-18000.
    comment_1:     SLEW TO TARG +5 DEGS
    comment_2:     ABOUT V2 VIA SPC.

!

    linenum:       25.000
    sequence_1:    DEFINE
    sequence_2:    PSEA-B
    targname:      SEP
    config:        S/C
    opmode:        POINTING
    aperture:      V1
    num_exp:       1
    time_per_exp:  1S
    fluxnum_1:     1
    priority:      1
    param_1:       CONTROL=GYRO,
    req_1:         CRIT OBS;
    req_2:         POS TARG 0.0,0.0;
    req_3:         AFTER 24 BY 5M +/- 5M;
    comment_1:     SLEW TO TARG -5 DEGS
    comment_2:     TO NOMINAL, ABOUT V2.
    comment_3:     COMPLETE 25 NO LATER THAN
    comment_4:     5 MINS PRIOR TO ENTER
    comment_5:     ORBIT NITE.

!

    linenum:       26.000
    sequence_1:    DEFINE
    sequence_2:    PSEA-B
    targname:      SEP
    config:        S/C
    opmode:        DATA
    aperture:      V1
    num_exp:       1
    time_per_exp:  1S
    fluxnum_1:     1
    priority:      1
    param_1:       CONTROL=GYRO,
    req_1:         CRIT OBS;
    req_2:         SEQ 26-29 NO GAP;
    req_3:         NON-INT;
    comment_1:     COLLECT/REC "T" FORMAT
    comment_2:     DATA FROM LINES 26-29. TO
    comment_3:     BE DONE DURING 1 SUNLITE
    comment_4:     ORBIT.

!

    linenum:       27.000
    sequence_1:    DEFINE
    sequence_2:    PSEA-B
    targname:      SEP
    config:        S/C
    opmode:        DATA
    aperture:      V1
    num_exp:       1
    time_per_exp:  1S
    fluxnum_1:     1
    priority:      1
    param_1:       CONTROL=GYRO,
    req_1:         RT ANALYSIS;
    req_2:         REQ UPLINK;
    comment_1:     UPLINK REQ'D TO COMMAND
    comment_2:     PSEA TEST MODE FROM 27-29

!

    linenum:       28.000
    sequence_1:    DEFINE
    sequence_2:    PSEA-B
    targname:      SEP
    config:        S/C
    opmode:        POINTING
    aperture:      V1
    num_exp:       1
    time_per_exp:  1S
    fluxnum_1:     1
    priority:      1
    param_1:       CONTROL=GYRO,
    req_1:         CRIT OBS;
    req_2:         ORIENT 5D +/- .5D
    req_3:         FROM 25
    comment_1:     SLEW TO TARG +5 DEGS
    comment_2:     ABOUT V1 VIA SPC.

!

    linenum:       29.000
    sequence_1:    DEFINE
    sequence_2:    PSEA-B
    targname:      SEP
    config:        S/C
    opmode:        POINTING
    aperture:      V1
    num_exp:       1
    time_per_exp:  1S
    fluxnum_1:     1
    priority:      1
    param_1:       CONTROL=GYRO,
    req_1:         CRIT OBS;
    req_2:         ORIENT -5D +/- .5D;
    req_3:         AFTER 28 BY 5M +/- 5M;
    comment_1:     SLEW TO TARG -5 DEGS
    comment_2:     TO NOMINAL, ABOUT V1.
    comment_3:     COMPLETE 29 NO LATER THAN
    comment_4:     5 MINS PRIOR TO ENTER
    comment_5:     ORBIT NITE.

!

    linenum:       29.500
    sequence_1:    USE
    sequence_2:    PSEA-B

!

    linenum:       29.600
    targname:      SEP
    config:        S/C
    opmode:        DATA
    aperture:      V1
    num_exp:       1
    time_per_exp:  15M
    fluxnum_1:     1
    priority:      1
    param_1:       CONTROL=GYRO,
    req_1:         RT ANALYSIS;
    req_2:         REQ UPLINK;
    comment_1:     UPLINK REQ'D TO COMMAND
    comment_2:     PSEA TO SMC-A

!

    linenum:       30.000
    sequence_1:    DEFINE
    sequence_2:    RMGACAL
    targname:      SEP
    config:        S/C
    opmode:        DATA
    aperture:      V1
    num_exp:       1
    time_per_exp:  30M
    fluxnum_1:     1
    priority:      1
    param_1:       CONTROL=GYRO
    req_1:         CRIT OBS;
    comment_1:     COLLECT/RECORD DATA
    comment_2:     IN "T" FORMAT. TB DONE
    comment_3:     IN ONE SUNLIGHT ORBIT.

!

    linenum:       31.000
    sequence_1:    DEFINE
    sequence_2:    RMGACAL
    targname:      SEP
    config:        S/C
    opmode:        POINTING
    aperture:      V1
    num_exp:       1
    time_per_exp:  1S
    fluxnum_1:     1
    priority:      1
    param_1:       CONTROL=GYRO
    req_1:         CRIT OBS;
    req_2:         AFTER 30 BY 10M +/- 10M;
    comment_1:     PLACE 2 FHSTS IN "MAP" MODE
    comment_2:     FROM 31-32 VIA SPC. THIS IS
    comment_3:     THE IS THE RMGA CALIBRATION
    comment_4:     PORTION OF THE TEST.

!

    linenum:       32.000
    sequence_1:    DEFINE
    sequence_2:    RMGACAL
    targname:      SEP
    config:        S/C
    opmode:        DATA
    aperture:      V1
    num_exp:       1
    time_per_exp:  25M
    fluxnum_1:     1
    priority:      1
    param_1:       CONTROL=GYRO
    req_1:         RT ANALYSIS;
    req_2:         REQ UPLINK;
    req_3:         AFTER 31 BY 5M +/- 5M;
    comment_1:     UPLINK REQ'D TO COMMAND
    comment_2:     PSEA TEST MODE.

!

    linenum:       33.000
    sequence_1:    USE
    sequence_2:    RMGACAL
    comment_1:     FIRST EXECUTION

!

    linenum:       33.500
    sequence_1:    USE
    sequence_2:    RMGACAL
    comment_1:     2ND EXECUTION TB
    comment_2:     REPEATED IN FIRST
    comment_3:     AVAILABLE SUNLITE
    comment_4:     ORBIT.

!

    linenum:       34.000
    targname:      SEP
    config:        S/C
    opmode:        DATA
    aperture:      V1
    num_exp:       1
    time_per_exp:  15M
    fluxnum_1:     1
    priority:      1
    param_1:       CONTROL=GYRO
    req_1:         RT ANALYSIS;
    req_2:         REQ UPLINK;
    req_3:         AFTER 33 BY 30M +/- 25M;
    comment_1:     UPLINK REQ'D TO COMMAND
    comment_2:     POWER OFF TO RMGA & TO
    comment_3:     PATCH SUN ANGLE SA NORMAL
    comment_4:     SAFEMODE LIMIT TO 90DEGS.

!

    linenum:       35.000
    targname:      SEP
    config:        S/C
    opmode:        DATA
    aperture:      V1
    num_exp:       1
    time_per_exp:  15M
    fluxnum_1:     1
    priority:      1
    param_1:       CONTROL=GYRO
    req_1:         RT ANALYSIS;
    req_2:         REQ UPLINK;
    req_3:         REPEAT 35 EVERY 60M +/- 30M
    req_4:         FOR 2 MORE TIMES;
    comment_1:     UPLINK REQ'D TO RELOAD/DUMP
    comment_2:     "F & P" FORMATS. WAIT 24HRS
    comment_3:     AFTER 3RD UPLINK BEFORE
    comment_4:     SWITCHING TO "F" FORMAT TO
    comment_5:     AVOID SAFING.

!
! end of exposure logsheet

! No scan data records found