!  File:  1418C.PROP
!  Database:  PEPDB
!  Date:  16-FEB-1994:18:28:32

coverpage:

  title_1:         MONITOR THE TEMPORAL STABILITY OF THE FGS'S AST-SV-7
    proposal_for:  SV/AST
    pi_fname:      WILLIAM
    pi_mi:         H.
    pi_lname:      JEFFERYS
    pi_inst:       UNIVERSITY OF TEXAS
    pi_country:    USA
    pi_phone:      512-471-1455
    hours_pri:     2.50
    num_pri:       5
    fgs:           Y
    pi_position:   PROFESSOR
! end of coverpage

abstract:

    line_1:        The goal of these measurements is to monitor the internal positional stability
    line_2:        of the FGSs by measuring a few stars in "check fields" repeatedly during the SV
    line_3:        period.
    line_4:        The results of these measurements
    line_5:        are the stability characteristics of the FGS to allow an estimate
    line_6:        of the frequency of OFAD re-calibrations.
    line_7:        NOW USES WvA positions for PROX and ref frame. 910920
    line_8:        Modified 910920 by F. Benedict to
    line_9:        1) observe Proxima Cen starting 920201
    line_10:       2) do either FGS 1 or FGS 3
    line_11:       THIS IS AN FGS 3 TEST
    line_12:       Modified 8 Feb 92 to remove v=16.25 target and change pupil to F583W.

!
! end of abstract

general_form_proposers:

  lname:           JEFFREYS
    fname:         WILLIAM
    inst:          UNIV. OF TEXAS
    country:       USA

!

  lname:           BENEDICT
    fname:         GEORGE
    inst:          UNIV. OF TEXAS
    country:       USA

!

  lname:           FREDRICK
    fname:         LAURENCE
    inst:          UNIV. OF VIRGINIA
    country:       USA

!
! end of general_form_proposers block

general_form_text:

  question:        3
    section:       1
    line_1:        SV Scrub Plan: steps 1-14
    line_2:        Off nominal roll = +30D for steps 1) and 8)
    line_3:        1) Position HST to place the check field in FGS 3. Acquire guide stars.
    line_4:        HST roll should be selected so that the same roll orientation can be used
    line_5:        as long as possible.
    line_9:        2) Measure 9 stars in POS mode. The last star is the same as the first.
    line_10:       3) Repeat steps 1-2 after 10 +/-1 days using the same roll orientation
    line_11:       as in step 1.
    line_12:       4) Repeat steps 1-2 after  20 +/- 1 days using the same roll
    line_13:       orientation as in step 1.
    line_14:       5) Repeat steps 1-2 after 33 +/- 1 days using the same roll orientation
    line_15:       as in step 1.
    line_16:       6) Repeat steps 1-2 after 46 +/- 1 days using the same roll orientation
    line_17:       as in step 1.
    line_18:       6) Repeat steps 1-2 after 59 +/- 1 days using the same roll orientation
    line_19:       as in step 1.

!

  question:        3
    section:       2
    line_1:
    line_2:        8) On the same visit as step 6 repeat step 1-2 using FGS 3
    line_3:        with a roll orientation that can be used over the next 37 days.
    line_5:        9) 11 +/- 1 days after step 8 repeat steps 1-2 using FGS 3 with the
    line_6:        same roll orientation as in step 8.
    line_7:        10) 24 +/- 1 days after step 8 repeat steps 1-2 using FGS 3 with the
    line_8:        same roll orientation as in step 8.
    line_9:        11) 37 +/- 1 days after step 8 repeat steps 1-2 using FGS 3 with the
    line_10:       same roll orientation as in step 8.

!

  question:        4
    section:       1
    line_1:        We need to monitor structural changes due to H2O
    line_2:        desorption and other effects.

!

  question:        5
    section:       1
    line_1:
    line_7:        SV Scrub PLAN: LINES 12-201
    line_10:       The off-nominal orientation offsets of 30 deg established in lines
    line_11:       12 and 28  apply to Proxima Cen as target. When STEIN 2051A
    line_12:       is used as target this offset should be negative (i.e., -30 deg).
    line_13:       Use CHECKP for observations between 2/01/92 and 8/20/92. Use CHECKS for
    line_14:       for observations between 9/7/92 and 3/6/93.  Series of measurements
    line_15:       at a fixed orientation must be made using a single target/SEQUENCE.

!

  question:        7
    section:       1
    line_1:        ADRS with SDAS will be used to monitor intra FGS positional changes
    line_2:        due to H2O desorption plus other (e.g. thermal) causes. The measurements will
    line_3:        be fit to previous measurements and a frequency of
    line_4:        recalibration of the FGS geometries established. Special
    line_5:        parameters will not be generated or required, but the raw data and final
    line_6:        coefficients should be readily available for future analysis (CDB).

!

  question:        8
    section:       1
    line_1:        All FGS numbers refer to BAY numbers.

!

  question:        10
    section:       1
    line_1:        ADRS will be available in Austin and at STScI. Some AST personnel will be
    line_2:        available at STScI or GSFC to aid in reduction and analysis of the test data.

!

  question:        12
    section:       1
    line_1:        32 Kbps engineering data - MA link presumed
    line_2:        Results of this test: a check field is measured and analyzed for changes in
    line_3:        geometric distortions. Any significant changes will indicate the need for a
    line_4:        complete recalibration using AST-SV-02 for that particular FGS. We will
    line_5:        also establish a frequency of recalibration of the FGS geometries.
    line_6:        A non-null result indicates the need for further analysis prior to continuing
    line_7:        the SV program.

!

  question:        13
    section:       1
    line_1:
    line_2:        The data should be stored for
    line_3:        trend analysis of geometric changes over the course of SV.

!
!end of general form text

general_form_address:

  lname:           JEFFERYS
    fname:         WILLIAM
    mi:            H.
    category:      PI
    inst:          UNIVERSITY OF TEXAS
    country:       USA
    phone:         (512) 471-3000 X445

!

  lname:           BENEDICT
    fname:         GEORGE
    category:      CON
    inst:          MCDONALD OBSERVATORY
    addr_1:        UNIV. OF TEXAS
    city:          AUSTIN
    state:         TX
    zip:           78712
    country:       USA
    phone:         (512) 471-3448

!

  lname:           FREDRICK
    fname:         LAURENCE
    category:      CON
    inst:          LEANDER MCCORMICK OBSERVATORY
    addr_1:        UNIV. OF VIRGINIA
    addr_2:        P.O. BOX 3818
    addr_3:        UNIV. STATION
    city:          CHARLOTTESVILLE
    state:         VA
    zip:           229030818
    country:       USA
    phone:         (804) 924-4905

!
! end of general_form_address records

fixed_targets:

    targnum:       1
    name_1:        CK1-1
    descr_1:       CHECK FIELD STAR IN STEIN-2051A
    descr_2:       STAR 70 GFB LIST
    pos_1:         RA=04H 26M 54.20S +/- .01S,
    pos_2:         DEC=+58D 53' 37.40" +/- 0.2"
    equinox:       2000
    pm_or_par:     N
    fluxnum_1:     1
    fluxval_1:     V=15.29 +/- 0.5

!

    targnum:       2
    name_1:        CK1-2-REF
    descr_1:       CHECK FIELD STAR IN STEIN-2051A
    descr_2:       STEIN-2051A
    pos_1:         RA=04H 26M 47.48S +/- .01S,
    pos_2:         DEC=+58D 53' 45.3" +/- 0.2"
    equinox:       2000
    pm_or_par:     Y
    pos_epoch_bj:  B
    pos_epoch_yr:  1953.00
    ra_pm_val:     0.088000
    ra_pm_unct:    0.000667
    dec_pm_val:    0.1960
    dec_pm_unct:   0.0100
    an_prlx_val:   0.1920
    an_prlx_unct:  0.0100
    fluxnum_1:     1
    fluxval_1:     V=10.43 +/- 0.1

!

    targnum:       3
    name_1:        CK1-3-REF
    descr_1:       CHECK FIELD STAR IN STEIN-2051A
    descr_2:       STAR 76 GFB LIST
    pos_1:         RA=04H 27M 2.24S +/- .01S,
    pos_2:         DEC=+58D 54' 5.5" +/- 0.2"
    equinox:       2000
    pm_or_par:     N
    fluxnum_1:     1
    fluxval_1:     V=14.77 +/- 0.5

!

    targnum:       4
    name_1:        CK1-4-REF
    descr_1:       CHECK FIELD STAR IN STEIN-2051A
    descr_2:       STAR 68 GFB LIST
    pos_1:         RA=04H 27M 2.68S +/- .01S,
    pos_2:         DEC=+58D 53' 33.80" +/- 0.2"
    equinox:       2000
    pm_or_par:     N
    fluxnum_1:     1
    fluxval_1:     V=14.53 +/- 0.5

!

    targnum:       5
    name_1:        CK1-5-REF
    descr_1:       CHECK FIELD STAR IN STEIN-2051A
    descr_2:       STAR 54 GFB LIST
    pos_1:         RA=04H 26M 3.96S +/- .01S,
    pos_2:         DEC=+58D 52' 48.90" +/- 0.2"
    equinox:       2000
    pm_or_par:     N
    fluxnum_1:     1
    fluxval_1:     V=16.18 +/- 0.5

!

    targnum:       6
    name_1:        CK1-6-REF
    descr_1:       CHECK FIELD STAR IN STEIN-2051A
    descr_2:       STAR 58 GFB LIST
    pos_1:         RA=04H 26M 58.89S +/- .01S,
    pos_2:         DEC=+58D 53' 22.80" +/- 0.2"
    equinox:       2000
    pm_or_par:     N
    fluxnum_1:     1
    fluxval_1:     V=13.79 +/- 0.5

!

    targnum:       7
    name_1:        CK1-7-REF
    descr_1:       CHECK FIELD STAR IN STEIN-2051A
    descr_2:       STAR 48 GFB LIST
    pos_1:         RA=04H 26M 48.43S +/- .01S,
    pos_2:         DEC=+58D 52' 9.20" +/- 0.2"
    equinox:       2000
    pm_or_par:     N
    acqpr_1:       COMP
    fluxnum_1:     1
    fluxval_1:     V=16.75 +/- 0.5

!

    targnum:       8
    name_1:        CK1-8-REF
    descr_1:       CHECK FIELD STAR IN STEIN-2051A
    descr_2:       STAR 55 GFB LIST
    pos_1:         RA=04H 26M 45.22S +/- .01S,
    pos_2:         DEC=+58D 52' 19.40" +/- 0.2"
    equinox:       2000
    pm_or_par:     N
    acqpr_1:       COMP
    fluxnum_1:     1
    fluxval_1:     V=15.66 +/- 0.5

!

    targnum:       9
    name_1:        CK1-9-REF
    descr_1:       CHECK FIELD STAR IN STEIN-2051A
    descr_2:       STAR 79 GFB LIST
    pos_1:         RA=04H 26M 45.29S +/- .01S,
    pos_2:         DEC=+58D 54' 4.20" +/- 0.2"
    equinox:       2000
    pm_or_par:     N
    fluxnum_1:     1
    fluxval_1:     V=14.04 +/- 0.5

!

    targnum:       10
    name_1:        CK1-10-REF
    descr_1:       CHECK FIELD STAR IN STEIN-2051A
    descr_2:       STAR 77 GFB LIST
    pos_1:         RA=04H 26M 55.40S +/- .01S,
    pos_2:         DEC=+58D 54' 29.00" +/- 0.2"
    equinox:       2000
    pm_or_par:     N
    acqpr_1:       COMP
    comment_1:     THE STEIN CHECK FIELD CAN BE
    comment_2:     USED FROM 9/7/90 TO 3/6/91.
    fluxnum_1:     1
    fluxval_1:     V=14.60 +/- 0.5

!

    targnum:       11
    name_1:        CK2-1
    descr_1:       CHECK FIELD STAR IN PROXIMA-CEN
    descr_2:       PROXIMA CENTAURI
    descr_3:       STAR 15 IN GFB LIST
    pos_1:         RA=217.4291788D +/- 0.00115D,
    pos_2:         DEC=-62.679483D +/- 0.00115D
    equinox:       2000
    pm_or_par:     Y
    pos_epoch_bj:  J
    pos_epoch_yr:  2000.00
    ra_pm_val:     -0.546267
    ra_pm_unct:    0.000667
    dec_pm_val:    0.8000
    dec_pm_unct:   0.0100
    an_prlx_val:   0.7800
    an_prlx_unct:  0.0100
    fluxnum_1:     1
    fluxval_1:     V=11.02 +/- 0.1

!

    targnum:       13
    name_1:        CK2-3-REF
    descr_1:       CHECK FIELD STAR IN PROXIMA-CEN
    descr_2:       STAR 17 GFB LIST
    pos_1:         RA=217.4819342D +/- 0.00115D,
    pos_2:         DEC=-62.689244D +/- 0.00115D
    equinox:       2000
    pm_or_par:     N
    fluxnum_1:     1
    fluxval_1:     V=15.10 +/- 0.07

!

    targnum:       14
    name_1:        CK2-4-REF
    descr_1:       CHECK FIELD STAR IN PROXIMA-CEN
    descr_2:       STAR 18 GFB LIST
    pos_1:         RA=217.4546217D +/- 0.00115D,
    pos_2:         DEC=-62.689341D +/- 0.00115D
    equinox:       2000
    pm_or_par:     N
    fluxnum_1:     1
    fluxval_1:     V=15.76 +/- 0.05

!

    targnum:       15
    name_1:        CK2-5-REF
    descr_1:       CHECK FIELD STAR IN PROXIMA-CEN
    descr_2:       STAR 19 GFB LIST
    pos_1:         RA=217.4353808D +/- 0.00115D,
    pos_2:         DEC=-62.691332D +/- 0.00115D
    equinox:       2000
    pm_or_par:     N
    fluxnum_1:     1
    fluxval_1:     V=14.36 +/- 0.1

!

    targnum:       16
    name_1:        CK2-6-REF
    descr_1:       CHECK FIELD STAR IN PROXIMA-CEN
    descr_2:       STAR 22 GFB LIST
    pos_1:         RA=217.4860771D +/- 0.00115D,
    pos_2:         DEC=-62.662371D +/- 0.00115D
    equinox:       2000
    pm_or_par:     N
    fluxnum_1:     1
    fluxval_1:     V=14.58 +/- 0.09

!

    targnum:       17
    name_1:        CK2-7-REF
    descr_1:       CHECK FIELD STAR IN PROXIMA-CEN
    descr_2:       STAR 25 GFB LIST
    pos_1:         RA=217.434505D +/- 0.00115D,
    pos_2:         DEC=-62.686885D +/- 0.00115D
    equinox:       2000
    pm_or_par:     N
    fluxnum_1:     1
    fluxval_1:     V=15.32 +/- 0.08

!

    targnum:       18
    name_1:        CK2-8-REF
    descr_1:       CHECK FIELD STAR IN PROXIMA-CEN
    descr_2:       STAR 28 GFB LIST
    pos_1:         RA=217.42031251D +/- 0.00115D,
    pos_2:         DEC=-62.694848D +/- 0.00115D
    equinox:       2000
    pm_or_par:     N
    fluxnum_1:     1
    fluxval_1:     V=15.14 +/- 0.05

!

    targnum:       20
    name_1:        CK2-10-REF
    descr_1:       CHECK FIELD STAR IN PROXIMA-CEN
    descr_2:       STAR 37 GFB LIST
    pos_1:         RA=217.3731942D +/- 0.00115D,
    pos_2:         DEC=-62.662674D +/- 0.00115D
    equinox:       2000
    pm_or_par:     N
    fluxnum_1:     1
    fluxval_1:     V=14.30 +/- 0.11

!

    targnum:       21
    name_1:        CK2-11-REF
    descr_1:       CHECK FIELD STAR IN PROXIMA-CEN
    descr_2:       STAR 38 GFB LIST
    pos_1:         RA=217.3725963D +/- 0.00115D,
    pos_2:         DEC=-62.667316D +/- 0.00115D
    equinox:       2000
    pm_or_par:     N
    comment_1:     THE PROXIMA CENTAURI CHECK
    comment_2:     FIELD SHOULD BE USED FROM
    comment_3:     2/01/92 TO 8/20/92.
    fluxnum_1:     1
    fluxval_1:     V=14.43 +/- 0.09

!
! end of fixed targets

! No solar system records found

! No generic target records found

exposure_logsheet:

    linenum:       1.010
    sequence_1:    DEFINE
    sequence_2:    CHECKP
    targname:      CK2-1
    config:        FGS
    opmode:        POS
    aperture:      #
    sp_element:    F583W
    num_exp:       1
    time_per_exp:  52S
    fluxnum_1:     1
    priority:      #
    param_1:       DATA-RATE=32,
    req_1:         SEQ 1.01-1.11 NO GAP;
    comment_1:     SEE QUESTION 5.

!

    linenum:       1.030
    sequence_1:    DEFINE
    sequence_2:    CHECKP
    targname:      CK2-3-REF
    config:        FGS
    opmode:        POS
    aperture:      #
    sp_element:    F583W
    num_exp:       1
    time_per_exp:  52S
    fluxnum_1:     1
    priority:      #
    param_1:       DATA-RATE=32,

!

    linenum:       1.040
    sequence_1:    DEFINE
    sequence_2:    CHECKP
    targname:      CK2-4-REF
    config:        FGS
    opmode:        POS
    aperture:      #
    sp_element:    F583W
    num_exp:       1
    time_per_exp:  52S
    fluxnum_1:     1
    priority:      #
    param_1:       DATA-RATE=32,

!

    linenum:       1.050
    sequence_1:    DEFINE
    sequence_2:    CHECKP
    targname:      CK2-5-REF
    config:        FGS
    opmode:        POS
    aperture:      #
    sp_element:    F583W
    num_exp:       1
    time_per_exp:  52S
    fluxnum_1:     1
    priority:      #
    param_1:       DATA-RATE=32,

!

    linenum:       1.060
    sequence_1:    DEFINE
    sequence_2:    CHECKP
    targname:      CK2-6-REF
    config:        FGS
    opmode:        POS
    aperture:      #
    sp_element:    F583W
    num_exp:       1
    time_per_exp:  52S
    fluxnum_1:     1
    priority:      #
    param_1:       DATA-RATE=32,

!

    linenum:       1.070
    sequence_1:    DEFINE
    sequence_2:    CHECKP
    targname:      CK2-7-REF
    config:        FGS
    opmode:        POS
    aperture:      #
    sp_element:    F583W
    num_exp:       1
    time_per_exp:  52S
    fluxnum_1:     1
    priority:      #
    param_1:       DATA-RATE=32,

!

    linenum:       1.080
    sequence_1:    DEFINE
    sequence_2:    CHECKP
    targname:      CK2-8-REF
    config:        FGS
    opmode:        POS
    aperture:      #
    sp_element:    F583W
    num_exp:       1
    time_per_exp:  52S
    fluxnum_1:     1
    priority:      #
    param_1:       DATA-RATE=32,

!

    linenum:       1.100
    sequence_1:    DEFINE
    sequence_2:    CHECKP
    targname:      CK2-10-REF
    config:        FGS
    opmode:        POS
    aperture:      #
    sp_element:    F583W
    num_exp:       1
    time_per_exp:  52S
    fluxnum_1:     1
    priority:      #
    param_1:       DATA-RATE=32,

!

    linenum:       1.105
    sequence_1:    DEFINE
    sequence_2:    CHECKP
    targname:      CK2-11-REF
    config:        FGS
    opmode:        POS
    aperture:      #
    sp_element:    F583W
    num_exp:       1
    time_per_exp:  52S
    fluxnum_1:     1
    priority:      #
    param_1:       DATA-RATE=32,

!

    linenum:       1.110
    sequence_1:    DEFINE
    sequence_2:    CHECKP
    targname:      CK2-1
    config:        FGS
    opmode:        POS
    aperture:      #
    sp_element:    F583W
    num_exp:       1
    time_per_exp:  52S
    fluxnum_1:     1
    priority:      #
    param_1:       DATA-RATE=32,

!

    linenum:       12.000
    sequence_1:    USE CHECKP
    aperture:      3
    priority:      1
    req_1:         ORIENT 30D +/- 2.0D FROM NOMINAL;
    req_3:         CYCLE 1 / 12-37;
    comment_1:     LINE 12 ESTABLISHES THE ROLL ORIENTA-
    comment_2:     TION THAT WILL BE USED FOR LINES
    comment_3:     12-24  TO MIN. DISTORTION EFFECTS IN
    comment_4:     MONITORING STABILITY.  THE TIMING OF
    comment_5:     THIS PROPOSAL ASSUMES THAT LINE 12 IS
    comment_6:     DONE AROUND SMS 92.076.

!

    linenum:       15.000
    sequence_1:    USE CHECKP
    aperture:      3
    priority:      1
    req_1:         AFTER 12 BY 10D +/- 1D;
    req_2:         SAME POS FOR 15 AS 12;

!

    linenum:       17.000
    sequence_1:    USE CHECKP
    aperture:      3
    priority:      1
    req_1:         AFTER 12 BY 20D +/- 2D;
    req_2:         SAME POS FOR 17 AS 12;

!

    linenum:       20.000
    sequence_1:    USE CHECKP
    aperture:      3
    priority:      1
    req_1:         AFTER 12 BY 33D +/- 2D; SAME POS FOR 20
    req_2:         AS 12;

!

    linenum:       23.000
    sequence_1:    USE CHECKP
    aperture:      3
    priority:      1
    req_1:         AFTER 12 BY 46D +/- 2D;
    req_2:         SAME POS FOR 23 AS 12;

!

    linenum:       24.000
    sequence_1:    USE CHECKP
    aperture:      3
    priority:      1
    req_1:         AFTER 12 BY 59D +/- 3D; SAME POS FOR 24
    req_2:         AS 12;
    req_3:         GROUP 24,28 WITHIN 1D;

!

    linenum:       28.000
    sequence_1:    USE CHECKP
    aperture:      3
    priority:      1
    req_1:         ORIENT 30D +/- 2.0D FROM NOMINAL;
    comment_1:     LINE 28 ESTABLISHES THE ROLL
    comment_2:     ORIENTATION THAT WILL BE USED FOR
    comment_3:     LINES 28-37 TO MINIMIZE DISTORTION
    comment_4:     EFFECTS IN MONITORING THE STABILITY.

!

    linenum:       31.000
    sequence_1:    USE CHECKP
    aperture:      3
    priority:      1
    req_1:         AFTER 28 BY 11D +/- 1D;
    req_2:         SAME POS FOR 31 AS 28;

!

    linenum:       36.000
    sequence_1:    USE CHECKP
    aperture:      3
    priority:      1
    req_1:         AFTER 28 BY 24D +/- 2D;
    req_2:         SAME POS FOR 36 AS 28;

!

    linenum:       37.000
    sequence_1:    USE CHECKP
    aperture:      3
    priority:      1
    req_1:         AFTER 28 BY 37D +/- 2D;
    req_2:         SAME POS FOR 37 AS 28;

!
! end of exposure logsheet

! No scan data records found