!  File:  3979C.PROP
!  Database:  PEPDB
!  Date:  20-FEB-1994:02:29:18

coverpage:

  title_1:         ZERO GYRO SUNPOINT SAFEMODE TEST
    proposal_for:  ENG/AST
    pi_fname:      MIKE
    pi_lname:      URBAN
    pi_inst:       CODE 441
    pi_country:    USA
    num_pri:       1
! end of coverpage

abstract:

    line_1:        This proposal will acquire data to be used to validate the
    line_2:        performance of the zero gyro sunpoint control law.  The
    line_3:        zero gyro sunpoint control law will be operated at two
    line_4:        different vehicle orientations, +V3 to the sun and -V1 to
    line_5:        the sun.  At the beginning of the test the vehicle will be
    line_6:        commanded to +V3 software sunpoint and subsequent transitions
    line_7:        between +V3 software sunpoint and +V3 zero gyro sunpoint
    line_8:        will be executed.  After 7 orbits, capture of the -V1
    line_9:        sunpoint axis under zero gyro sunpoint will be executed
    line_10:       and the control law performance at this attitude will be
    line_11:       evaluated for 4 orbits.  At the completion of the zero
    line_12:       gyro sunpointtesting the vehicle will be recovered from
    line_13:       software sunpoint to normal mode, the duration of which
    line_14:       will be approximately 24 hours.  During the 42 hour period
    line_15:       in which the test is to occur, no additional ScI generated
    line_16:       commands in the SMS are required.

!
! end of abstract

general_form_proposers:

  lname:           URBAN
    fname:         MIKE
    inst:          GFSC/CODE 441
    country:       USA
    esa:           X

!
! end of general_form_proposers block

general_form_text:

  question:        2
    section:       1
    line_1:        As a result of the two gyro failures on HST, concern about
    line_2:        future gyro failures has resulted in the design of a zero
    line_3:        gyro sunpoint (ZGSP) safemode control law.  The zero gyro
    line_4:        sunpoint control will provide a level of safemode in the
    line_5:        event of gyro failures resulting in the availability of
    line_6:        fewer than three gyros.  The controller uses coarse sun
    line_7:        sensors and magnetometers for rate and position
    line_8:        determination which are then used to produce commands to
    line_9:        the reaction wheels and magnetic torquers.  The vehicle,
    line_10:       under ZGSP control, will capture and maintain, either a
    line_11:       +V3 or -V1 sunpoint attitude to provide a power positive
    line_12:       state.

!

  question:        2
    section:       2
    line_1:        The controller has been thoroughly tested through ground
    line_2:        simulations, however, these simulations are limited and
    line_3:        an on-orbit test of the ZGSP controller is required to
    line_4:        insure spacecraft survivability.  The results of the test
    line_5:        will either validate the current ZGSP design or lead to
    line_6:        further modifications to the controller.  The test will
    line_7:        exercise all possible modes, with exception of sky sweep,
    line_8:        of the ZGSP at the two sunpointing attitudes, +V3 and
    line_9:        -V1 sunpoint.

!

  question:        3
    section:       1
    line_1:        The ZGSP test will exercise the various modes of the contol
    line_2:        system.  Initially the vehicle will be at a +V3 sunpoint
    line_3:        attitude operating in normal mode and then commanded to
    line_4:        +V3 software sunpoint via SPC list exhaustion, which will
    line_5:        result in a soft safing the science instruments.  After
    line_6:        six orbits of performance evaluation at the +V3 attitude,
    line_7:        a +V3 to -V1 sunpoint attitude slew while under ZGSP control
    line_8:        will be activated to provide sun capture performance data.
    line_9:        The performance at the -V1 sunpoint attitude will then be
    line_11:       evaluated for four orbits.  During the entire test period
    line_12:       the vehicle control will transition between ZGSP and software
    line_13:       sunpoint to provide added health and safety protection.

!

  question:        3
    section:       2
    line_1:        The command sequence executed at the +V3 sunpoint attitude
    line_2:        will consist of activation of zero gyro sunpoint and a
    line_3:        transistion back to software sunpoint 78 minutes later.  The
    line_4:        transistion to ZGSP control will occur enter orbit day.  The
    line_5:        timing will be such that the majority of the eclipse periods
    line_6:        will be under software sunpoint control.  The commands will
    line_7:        be executed automously via the special Processor, which will
    line_8:        be initially activated by real-time commanding.

!

  question:        3
    section:       3
    line_1:        The sun capture maneuver from the +V3 sunpoint attitude
    line_2:        to the -V1 sunpoint attitude will be accomplished using
    line_3:        commands executed from the special processor ans activated
    line_4:        by a real-time command.  The slew will start at the beginning
    line_5:        of orbit day of the eighth orbit of the test.  The command
    line_6:        sequences at the -V1 attitude will be similar to those
    line_7:        executed at the +V3 attitude.

!

  question:        3
    section:       4
    line_1:        After completion of the test, recovery of the vehicle
    line_2:        from software sunpoint to normal mode control at the -V1
    line_3:        sunpoint attitude will be executed.  The duration of the
    line_4:        recovery is approximately 24 hours.

!

  question:        5
    section:       1
    line_1:        At the beginning of the test the vehicle must be pointing
    line_2:        at the South Ecliptic Pole (SEP) with +V3 to the Sun and
    line_3:        the -V1 LGA visible to TDRSS.  The beginning of an orbit for
    line_4:        purposes of this is defined to be entry into orbit day.  The
    line_5:        orbit geometry will be such that ZOE will not occur during
    line_6:        the following periods:
    line_7:        A)  During orbit night for Orbits 1-4 and Orbits 8-10
    line_8:        of the test.
    line_9:        B)  During the first 40 minutes of the orbit day for
    line_10:       Orbit 8.
    line_11:       ZOE avoidance during critical periods of data acquisition
    line_12:       is required immediate vehicle performance evaluation and
    line_13:       will be used for decision purposes to continue with the test.
    line_14:       This requirement can be met if the beginning of Orbit 1 is
    line_15:       designated as the EOD occuring at one of the following times:
    line_16:       343/02:20
    line_17:       344/02:29
    line_18:       345/02:38
    line_19:       346/02:47
    line_20:       347/02:56
    line_21:       348/03:05
    line_22:       349/03:14

!

  question:        5
    section:       2
    line_1:        In addition, at least one Level 1 SAA event occurs during
    line_2:        the orbit day periods of Orbits 2-4 or Orbits 8-10.  This
    line_3:        will be used to evaluate the controller performance through
    line_4:        the SAA.  This requirement will also be met if the above
    line_5:        start times are used.

!

  question:        5
    section:       3
    line_1:        The test is to be scheduled at a date after the installation
    line_2:        of the zero gyro sunpoint FSW code has occurred.

!

  question:        5
    section:       4
    line_1:        R/T command to initiate +V3 software sunpoint via SPC list
    line_2:        exhaustion.  This will soft safe the SI's.  Commanding will
    line_3:        begin at enter orbit day (EOD) of Orbit 1.  RT command to
    line_4:        load special processor (SP) and partial safe mode recovery.
    line_5:        See exposure log line 2.000

!

  question:        5
    section:       5
    line_1:        Transition to zero gyro sunpoint control (ZGSP) via SP.
    line_2:        Must be at EOD (ORBIT 2).  RT ANALYSIS REQUIRED FROM LINE
    line_3:        #5 to #33.  Req uplink from line #5 to #33 via SSAF and
    line_4:        SSAR low gain ant. on ST to TDRSS.
    line_5:        See exposure log line 5.000

!

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

!

  question:        8
    section:       1
    line_1:        An additional requirement is to make sure the data recorders
    line_2:        are dumped of all data prior to the beginning of
    line_3:        the test window.  The test is to be scheduled at a date
    line_4:        after the installation of the zero gyro sunpoint FSW code
    line_5:        has occurred.

!
!end of general form text

general_form_address:

  lname:           URBAN
    fname:         MIKE
    category:      PI
    inst:          GFSC/CODE 441
    addr_1:        GSFC
    city:          GREENBELT
    state:         MD
    zip:           20771

!
! end of general_form_address records

fixed_targets:

    targnum:       1
    name_1:        SEP
    descr_1:       S. ECLIPTIC POLE (NOMINAL) WITH +V3 TO SUN
    pos_1:         RA=90.0D +/- .1",
    pos_2:         DEC = - 66.500D +/- .01"
    equinox:       1991

!
! 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 1/ 1-33;
    req_2:         SEQ 1-33 NO GAP;
    comment_1:     MAKE SURE THE SCIENCE TAPE RECORDERS
    comment_2:     ARE DUMPED OF ALL DATA PRIOR TO THE
    comment_3:     BEGINNING OF LINE #1. (SEE NOTE 8-1)
    comment_4:     SLEW TO TARGET +V3 ATTITUDE VIA SPC.
    comment_5:     COMPLETE SLEW 10 MIN PRIOR TO EOD.

!

    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:         RT ANALYSIS;
    req_2:         REQ UPLINK;
    comment_1:     SEE NOTE 5-4

!

    linenum:       2.500
    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:         REQ UPLINK;
    req_2:         RT ANALYSIS;
    comment_1:     RT COMMAND FOR PARTIAL SAFEMODE
    comment_2:     RECOVERY MUST BE EOD ORBIT 1

!

    linenum:       3.000
    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:         REQ UPLINK;
    req_2:         RT ANALYSIS;
    comment_1:     SET SP TO ENABLE ZERO GYRO
    comment_2:     MACRO 1. MUST BE AT EON
    comment_3:     (ORBIT 1)

!

    linenum:       5.000
    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:         REQ UPLINK;
    req_2:         RT ANALYSIS;
    comment_1:     SEE NOTE 5-5

!

    linenum:       6.000
    targname:      SEP
    config:        S/C
    opmode:        DATA
    aperture:      V1
    num_exp:       1
    time_per_exp:  20M
    fluxnum_1:     1
    priority:      1
    req_1:         REQ UPLINK;
    req_2:         RT ANALYSIS;
    comment_1:     CONTROL=CSS
    comment_2:     TRANSITION BACK TO SOFTWARE
    comment_3:     SUNPOINT (ORBIT2) VIA SP

!

    linenum:       7.000
    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:         REQ UPLINK;
    req_2:         RT ANALYSIS;
    comment_1:     SET SP TO ENABLE ZERO GYRO
    comment_2:     MACRO 2. MUST BE AT EON
    comment_3:     (ORBIT 2)

!

    linenum:       8.000
    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:         REQ UPLINK;
    req_2:         RT ANALYSIS;
    comment_1:     TRANSITION TO ZGSC VIA SP
    comment_2:     MUST BE AT EOD
    comment_3:     (ORBIT 3)

!

    linenum:       9.000
    targname:      SEP
    config:        S/C
    opmode:        DATA
    aperture:      V1
    num_exp:       1
    time_per_exp:  20M
    fluxnum_1:     1
    priority:      1
    req_1:         REQ UPLINK;
    req_2:         RT ANALYSIS;
    comment_1:     TRANSITION BACK TO SOFTWARE
    comment_2:     SUNPOINT (ORBIT 3)
    comment_3:     CONTROL=CSS

!

    linenum:       10.000
    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:         REQ UPLINK;
    req_2:         RT ANALYSIS;
    comment_1:     SET SP TO ENABLE ZERO GYRO
    comment_2:     MACRO 3. MUST BE AT EON
    comment_3:     (ORBIT 3)

!

    linenum:       11.000
    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:         REQ UPLINK;
    req_2:         RT ANALYSIS;
    comment_1:     TRANSITION TO ZGSC VIA SP
    comment_2:     MUST BE AT EOD
    comment_3:     (ORBIT 4)

!

    linenum:       12.000
    targname:      SEP
    config:        S/C
    opmode:        DATA
    aperture:      V1
    num_exp:       1
    time_per_exp:  20M
    fluxnum_1:     1
    priority:      1
    req_1:         REQ UPLINK;
    req_2:         RT ANALYSIS;
    comment_1:     TRANISTION BACK TO SOFTWARE
    comment_2:     SUNPOINT (ORBIT 4)
    comment_3:     CONTROL=CSS

!

    linenum:       13.000
    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:         REQ UPLINK;
    req_2:         RT ANALYSIS;
    comment_1:     SET SP TO ENABLE ZERO GYRO
    comment_2:     MACRO 4. MUST BE AT EON
    comment_3:     (ORBIT 4)

!

    linenum:       14.000
    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:         REQ UPLINK;
    req_2:         RT ANALYSIS;
    comment_1:     TRANSITION TO ZGSC VIA SP
    comment_2:     MUST BE AT EOD (ORBIT 5)

!

    linenum:       15.000
    targname:      SEP
    config:        S/C
    opmode:        DATA
    aperture:      V1
    num_exp:       1
    time_per_exp:  20M
    fluxnum_1:     1
    priority:      1
    req_1:         REQ UPLINK;
    req_2:         RT ANALYSIS;
    comment_1:     TRANISTION BACK TO SOFTWARE
    comment_2:     SUNPOINT (ORBIT 5)
    comment_3:     CONTROL=CSS

!

    linenum:       16.000
    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:         REQ UPLINK;
    req_2:         RT ANALYSIS;
    comment_1:     REQUIRED UPLINK FOR BACK CUT
    comment_2:     PURPOSES AND TO PROVIDE ADDED
    comment_3:     HEALTH AND SAFETY PROTECTION VIA
    comment_4:     RT COM. BEGIN 10 MIN. PRIOR TO
    comment_5:     EON AND END 10 MIN. PRIOR TO
    comment_6:     EOD (ORBIT 6)

!

    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:         REQ UPLINK;
    req_2:         RT ANALYSIS;
    comment_1:     REQUIRED UPLINK TO SET SP FOR
    comment_2:     +V3 TO -V1 VEHICLE SLEW TYPE 2
    comment_3:     AT EOD (ORBIT 7)

!

    linenum:       18.000
    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:         REQ UPLINK;
    req_2:         RT ANALYSIS;
    comment_1:     SET SP TO ENABLE ZERO GYRO
    comment_2:     MACRO 5. MUST BE AT EON
    comment_3:     (ORBIT 7)

!

    linenum:       19.000
    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:         REQ UPLINK;
    req_2:         RT ANALYSIS;
    comment_1:     TRANSITION TO ZGSC VIA SP
    comment_2:     MUST BE AT EOD (ORBIT 8)

!

    linenum:       20.000
    targname:      ANTI-SUN
    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:         RT ANALYSIS;
    req_2:         REQ UPLINK;
    comment_1:     TRANSITION BACK TO SOFTWARE
    comment_2:     SUNPOINT VIA SP. POST SLEW
    comment_3:     NEW AT -V1 ATTITUDE
    comment_4:     (ORBIT 8)

!

    linenum:       21.000
    targname:      ANTI-SUN
    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:         RT ANALYSIS;
    req_2:         REQ UPLINK;
    comment_1:     SET SPECIAL PROCESSOR (SP) TO
    comment_2:     ENABLE ZERO GYRO MACRO 6 VIA
    comment_3:     R/T COMMAND MUST BE AT EON
    comment_4:     (ORBIT 8)

!

    linenum:       22.000
    targname:      ANTI-SUN
    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:         RT ANALYSIS;
    req_2:         REQ UPLINK;
    comment_1:     TRANSISTION TO ZGSP VIA SP
    comment_2:     MUST BE AT EOD. (ORBIT 9)

!

    linenum:       23.000
    targname:      ANTI-SUN
    config:        S/C
    opmode:        DATA
    aperture:      V1
    num_exp:       1
    time_per_exp:  20M
    fluxnum_1:     1
    priority:      1
    req_1:         RT ANALYSIS;
    req_2:         REQ UPLINK;
    comment_1:     TRANSITION BACK TO SOFTWARE
    comment_2:     SUNPOINT VIA SP (ORBIT 9)
    comment_3:     CONTROL=CSS,

!

    linenum:       24.000
    targname:      ANTI-SUN
    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:         RT ANALYSIS;
    req_2:         REQ UPLINK;
    comment_1:     R/T COMMAND TO SET SP ENABLE
    comment_2:     MACRO 7.  MUST BE
    comment_3:     AT EON (ORBIT 9)

!

    linenum:       25.000
    targname:      ANTI-SUN
    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:         RT ANALYSIS;
    req_2:         REQ UPLINK;
    comment_1:     TRANSITION TO ZGSP VIA SP
    comment_2:     MUST BE AT EOD (ORBIT 10)

!

    linenum:       26.000
    targname:      ANTI-SUN
    config:        S/C
    opmode:        DATA
    aperture:      V1
    num_exp:       1
    time_per_exp:  20M
    fluxnum_1:     1
    priority:      1
    req_1:         RT ANALYSIS;
    req_2:         REQ UPLINK;
    comment_1:     TRANSITION BACK TO SOFTWARE
    comment_2:     SUNPOINT VIA SP (ORBIT 10)
    comment_3:     CONTROL=CSS

!

    linenum:       27.000
    targname:      ANTI-SUN
    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:         RT ANALYSIS;
    req_2:         REQ UPLINK;
    comment_1:     R/T COMMAND TO SET SP
    comment_2:     TO ENABLE MACRO 8.
    comment_3:     MUST BE AT EON (ORBIT 10)

!

    linenum:       28.000
    targname:      ANTI-SUN
    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:         RT ANALYSIS;
    req_2:         REQ UPLINK;
    comment_1:     TRANSITION TO ZGSP VIA SP
    comment_2:     MUST BE AT EOD (ORBIT 11)

!

    linenum:       29.000
    targname:      ANTI-SUN
    config:        S/C
    opmode:        DATA
    aperture:      V1
    num_exp:       1
    time_per_exp:  20M
    fluxnum_1:     1
    priority:      1
    req_1:         RT ANALYSIS;
    req_2:         REQ UPLINK;
    comment_1:     TRANSITION BACK TO SOFTWARE
    comment_2:     SUNPOINT VIA SP (ORBIT 11)
    comment_3:     CONTROL=CSS

!

    linenum:       30.000
    targname:      ANTI-SUN
    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:         RT ANALYSIS;
    req_2:         REQ UPLINK;
    comment_1:     R/T COMMAND TO SET SP TO ENABLE
    comment_2:     MACRO 9.
    comment_3:     MUST BE AT EON (ORBIT 11)

!

    linenum:       31.000
    targname:      ANTI-SUN
    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:         RT ANALYSIS;
    req_2:         REQ UPLINK;
    comment_1:     TRANSITION TO ZGSP VIA SP.
    comment_2:     MUST BE AT EOD (ORBIT 12)

!

    linenum:       32.000
    targname:      ANTI-SUN
    config:        S/C
    opmode:        DATA
    aperture:      V1
    num_exp:       1
    time_per_exp:  20M
    fluxnum_1:     1
    priority:      1
    req_1:         RT ANALYSIS;
    req_2:         REQ UPLINK;
    comment_1:     TRANISTION BACK TO SOFTWARE
    comment_2:     SUNPOINT VIA SP (ORBIT 12)
    comment_3:     CONTROL=CSS

!

    linenum:       33.000
    targname:      ANTI-SUN
    config:        S/C
    opmode:        DATA
    aperture:      V1
    num_exp:       1
    time_per_exp:  1440M
    fluxnum_1:     1
    priority:      1
    param_1:       CONTROL=GYRO,
    comment_1:     ALLOW 15 ORBITS FOR
    comment_2:     SAFEMODE RECOVERY

!
! end of exposure logsheet

! No scan data records found