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!
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!
! SDDL Name: WGACQUIS.SDDL
!
! Purpose: This SDDL file defines the wgacquis relation.
!
! Modification History:
!
! Date PR Who Reason
! -------- ------- --- -------------------------------------------------
! 11/21/94 27329 RSL Original implementation
! 05/02/96 27745 bao Eliminate two-step GS acquisition support
! from database and SPSS
! 05/08/98 36870 MRB Add C output
! 06/15/98 36500 sfs Added units to quantities
! 02/02/99 37931 sfs Deleted gs_prs, gs_number, min_acq_tim,
! nom_acq_tim, prob_succ.
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!
LANGUAGE C, FORTRAN, SQL
INCLUDE ZSPSS_USER_TYPES.SDDL
RECORD ACQUIS_TYPE
!------------------------------------------------------------------------------
!
! RECORD INFORMATION
!
!------------------------------------------------------------------------------
DESCRIPTION "The wgacquis relation stores guide star acquisition
data.
Guide stars (when one FGS is used) and guide
star pairs are filtered out of all possible
pairs that can be centerlined, by GSSS/REPORT.
The output of GSSS/REPORT is used by GSSS/ACQ,
which merges it to form acquisition datasets.
An acquisition dataset is a collection of guide star
or guide star pair combinations that satisfy certain
acquisition criteria. GSSS/ACQ stores the acquisition
datasets in wgacquis.
PMDB/UPDATE/TYPE=SU selects fields from wgacquis
when determining the constant coefficient of the PCS
acquisition and while calculating guide star restricted
normal and off-normal roll windows for the obset. Also,
when PMDB/UPDATE/TYPE=SU is run, it deletes observation
set specific data for observation sets other than the
first in a previous acquisition sequence, deleting
records from wgacquis.
CANDLIST/ADDSUS, CANDLIST/DELSU, CANDLIST/UPDATE,
CCLIST/CREATE, PLANNINGWINDOWS select from wgacquis
when inserting PCS acqusition data for an
observation set into the candidate list's PCS data
for the observation set."
!------------------------------------------------------------------------------
!
! FIELD INFORMATION
!
!------------------------------------------------------------------------------
FIELD proposal_id
TYPE PROPOSAL_ID_TYPE
FORM
NAME "GSA"
LABEL "PROPOSAL ID"
END_FORM
END_FIELD
FIELD obset_id
TYPE OBSET_ID_TYPE
FORM
NAME "GSA"
LABEL "OBSET ID"
END_FORM
END_FIELD
FIELD version_num
TYPE VERSION_NUM_TYPE
FORM
NAME "GSA"
LABEL "VERSION NUMBER"
END_FORM
END_FIELD
FIELD select_flag
TYPE YES_NO_FLAG_TYPE
DESCRIPTION "This field specifies whether the guide star(s)
and guide star pair(s) associated with this data
set have been selected or not.
FORM
NAME "GSA"
LABEL "SELECTED FLAG (Y/N)"
END_FORM
END_FIELD
FIELD create_date
TYPE TIME_STAMP_TYPE
DESCRIPTION "This field specifies the time when this
guide star acquisition data was computed."
FORM
NAME "GSA"
LABEL "CREATE DATE"
END_FORM
END_FIELD
FIELD data_set_id
TYPE C*3
DESCRIPTION "This field specifies the unique data set
item relative to this observation set."
FORM
NAME "GSA"
LABEL "DATA SET ID"
END_FORM
RELATED_FIELDS "wgreswnd.data_set_id"
END_FIELD
FIELD low_v3_angle
TYPE R8
DESCRIPTION "This field specifies the lower limit of the
intersection of the guide star (when only one FGS is
used) or guide star pair roll ranges for those
guide stars or pairs which satisfy the acquisition
criteria."
UNITS "DEGREES"
FORM
NAME "GSA"
LABEL "MIN V3 POS ANGLE"
END_FORM
END_FIELD
FIELD up_v3_angle
TYPE R8
DESCRIPTION "This field specifies the upper limit of the
intersection of the guide star (when only one FGS is
used) or guide star pair roll ranges for those
guide stars or pairs which satisfy the acquisition
criteria."
UNITS "DEGREES"
FORM
NAME "GSA"
LABEL "MAX V3 POS ANGLE"
END_FORM
END_FIELD
FIELD ra_v1ref
TYPE R8
DESCRIPTION "For fixed targets, this field specifies the
right ascension of the vector average of all
targets of the observation set.
For moving targets, the reference V1-axis target
is used by GSSS to determine the position of all
the moving targets in the observation set."
UNITS "DEGREES"
FORM
NAME "GSA"
LABEL "V1 REFERENCE POSITION DATA - RIGHT ASCENSION"
END_FORM
END_FIELD
FIELD dec_v1ref
TYPE R8
DESCRIPTION "For fixed targets, this field specifies the
declination of the vector average of all targets
of the observation set.
For moving targets, the reference V1-axis target
is used by GSSS to determine position of all the
moving targets in the observation set."
UNITS "DEGREES"
FORM
NAME "GSA"
LABEL "V1 REFERENCE POSITION DATA - DECLINATION"
END_FORM
END_FIELD
FIELD atterror
TYPE R8
DESCRIPTION "This field specifies the maximum of the following:
the value specified for the observation set
or
a function of these two parameters:
the maximum position uncertainty of the
dominant guide stars selected for acquisition;
the default pitch/yaw error coefficient for the
PCS mode specified for the observation set."
UNITS "ARCSECONDS"
FORM
NAME "GSA"
LABEL "PITCH/YAW ERROR COEFF"
END_FORM
RELATED_FIELDS "qbs_obset.atterror" "qbpcs_def.atterror"
END_FIELD
FIELD rollerror
TYPE R8
DESCRIPTION "This field specifies the maximum of the following:
the value specified for the observation set
or
the maximum roll uncertainty of each possible guide
star pair selected for the acquisition
plus
the default roll error coefficient for the PCS mode
specified for the observation set."
UNITS "ARCSECONDS"
FORM
NAME "GSA"
LABEL "ROLL ERROR COEFF"
END_FORM
RELATED_FIELDS "qbs_obset.rollerror" "qbpcs_def.rollerror"
END_FIELD
FIELD acq_tim_mod1
TYPE R8
DESCRIPTION "This field specifies the g1 constant term of the
guide star acquisition time model. It is dependent
upon the acquisition type and number of guide stars
(when only one FGS is used) or guide star pairs."
FORM
NAME "GSA"
LABEL "MODEL (CONSTANT TERM)"
END_FORM
END_FIELD
FIELD acq_tim_mod2
TYPE R8
DESCRIPTION "This field specifies the g2 constant term of the
guide star acquisition time model. It is
dependent upon the number of full coarse track
spirals which will be required."
FORM
NAME "GSA"
LABEL "MODEL (NON-LIN. COEF)"
END_FORM
END_FIELD
FIELD str_tim_usbl
TYPE SOGS_INT_TIME_TYPE
DESCRIPTION "This field specifies the start time of the
intersection of the guide star (when only one FGS
is used) or guide star pair usability windows, for
those guide stars or pairs which satisfy the
acquisition criteria.
This field is only used for moving targets."
FORM
NAME "GSA"
LABEL "START TIME"
END_FORM
END_FIELD
FIELD end_tim_usbl
TYPE SOGS_INT_TIME_TYPE
DESCRIPTION "This field specifies the end time of the
intersection of the guide star (when only one FGS
is used) or guide star pair usability windows, for
those guide stars or pairs which satisfy the
acquisition criteria.
This field is only used for moving targets."
FORM
NAME "GSA"
LABEL "END TIME"
END_FORM
END_FIELD
FIELD rr_typ
TYPE C1
DESCRIPTION "This field contains the acquisition roll range type.
'A' means the data acquisition set was generated
from acquisition roll ranges.
'C' means the data acquisition set was generated
from centerline roll ranges.
'G' means the data acquisition set was generated
from guide star roll ranges."
FORM
NAME "GSA"
LABEL "ROLL RANGE TYPE"
END_FORM
DISCRETE "A","C","G"
RELATED_FIELDS "wgacquis.rr_lvl"
END_FIELD
FIELD rr_lvl
TYPE C1
DESCRIPTION "This field specifies the roll range level. It is
only valid for a roll range type flag value of 'C'.
It indicates the level of centerline roll ranges
which was used in selecting stars or pairs for this
data acquisition set.
'1' means both guide stars must be placed on
the centerline.
'2' means level 1 or the guide stars must be
placed above the centerline without overlapping
the outer edge of the FGS FOV.
'3' means level 2 or the guide stars must be placed
above the centerline such that both stars
overlap the outer edge of the FGS FOV."
FORM
NAME "GSA"
LABEL "ROLL RANGE LEVEL"
END_FORM
RELATED_FIELDS "wgacquis.rr_typ" "qbacqs.rr_lvl"
DISCRETE " ", "1", "2", "3"
END_FIELD
END_RECORD
!------------------------------------------------------------------------------
!
! RELATION DECLARATION
!
!------------------------------------------------------------------------------
RELATION wgacquis
TYPE ACQUIS_TYPE
DESCRIPTION "Guide Star Acquisition Scheduling Data Relation"
SUBSYSTEM_USING "SPSS"
FORM
NAME "GSA"
END_FORM
INDEX wgacquis_1
TYPE unique, clustered
FIELDS proposal_id, obset_id, version_num, data_set_id, rr_typ
END_INDEX
END_RELATION
!------------------------------------------------------------------------------
!
! INSTANCE DECLARATION
!
!------------------------------------------------------------------------------
INSTANCE wgacquis
GLOBAL
TYPE ACQUIS_TYPE
END_INSTANCE
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