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! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ! ! SDDL Name: QBACQS.SDDL ! ! Purpose: This SDDL file defines the qbacqs relation. ! ! Modification History: ! ! Date OPR Who Reason ! -------- ------- --- ------------------------------------------------- ! 11/11/94 27329 RJS Original implementation ! 05/23/96 27745 bao Eliminate two-step GS acquisition support ! from database and SPSS ! 11/12/97 35442 sfs Add C to language list. Add over_nr_off, ! over_nr_limit, max_time_pts, rec_id, and comment ! 04/13/98 36218 sfs Elaborated on description of rec_id and comment ! 11/02/98 37306 bao Delete remnants of GSSS interface from SPSS ! 02/02/99 37931 sfs Deleted min_prob. ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ! ! LANGUAGE C, FORTRAN, SQL INCLUDE ZSPSS_USER_TYPES.SDDL RECORD QBACQS_TYPE !------------------------------------------------------------------------------ ! ! RECORD INFORMATION ! !------------------------------------------------------------------------------ DESCRIPTION "The records within this relation are linked to the QBS_OBSET relation through a join with the field scenario_acq. Fields within this relation specify the criteria by which guide stars for an FGS mode obset will be selected. The table QBACQD_DEF contains matching fields and provides the default selection criteria for a particular acquisition if no matching record is found in QBACQS. Two SPSS commands perform the filtering process which use the data from this table, namely GS_REQUEST and GSSELECT." !------------------------------------------------------------------------------ ! ! FIELD INFORMATION ! !------------------------------------------------------------------------------ FIELD proposal_id TYPE PROPOSAL_ID_TYPE END_FIELD FIELD obset_id TYPE OBSET_ID_TYPE DESCRIPTION "This field identifies the observation set that uses this guide star data." END_FIELD FIELD version_num TYPE VERSION_NUM_TYPE END_FIELD FIELD scenario_acq TYPE C8 DESCRIPTION "This field is the scenario name associated with an obset's guide star acquisition." RELATED_FIELDS "qbs_obset.scenario_acq" END_FIELD FIELD acq_mode TYPE C1 DESCRIPTION "This field specifies the acquisition mode, which indicates whether the acquisition will include an attempt to go to fine lock F or use coarse track C." DISCRETE "C", "F" END_FIELD FIELD use_fgs_1 TYPE YES_NO_FLAG_TYPE DESCRIPTION "This field specifies if FGS 1 can be used for the selection of guide stars for the acquisition." END_FIELD FIELD use_fgs_2 TYPE YES_NO_FLAG_TYPE DESCRIPTION "This field specifies if FGS 2 can be used for the selection of guide stars for the acquisition." END_FIELD FIELD use_fgs_3 TYPE YES_NO_FLAG_TYPE DESCRIPTION "This field specifies if FGS 3 can be used for the selection of guide stars for the acquisition." END_FIELD FIELD num_fgs TYPE I4 DESCRIPTION "This field gives the number of FGSs which can be used for the selection of guide stars for the acquisition." RANGE "1..3" END_FIELD FIELD select_flag TYPE C1 DESCRIPTION "This field specifies whether the candidate guide star pairs, which may have been selected at a prior time, should be (re)selected or not, where Y = 1,2,3 - only select pairs which have been previously selected N = 0 - only select pairs which have not been previously selected A = 0,1,2,3 - select pairs whether they have been previously selected or not" DISCRETE "A", "N", "Y" RELATED_FIELDS "wggs_pairs.selected" END_FIELD FIELD pre_use_flag TYPE YES_NO_FLAG_TYPE DESCRIPTION "This field specifies whether guide star pairs which have the same previously used guide star may be considered as independent guide star pairs." END_FIELD FIELD min_gs_pair TYPE I4 DESCRIPTION "This field specifies the minimum number of independent guide star pairs which can be used for the acquisition. This is the minimum number of guide star pairs that the command GS_REQUEST groups as a combination. This is generally set to 1." END_FIELD FIELD max_gs_pair TYPE I4 DESCRIPTION "This field specifies the maximum number of independent guide star pairs which can be used for the acquisition. This is the maximum number of guide star pairs that the command GS_REQUEST groups into a combination. This value is typically set to 1. GS_REQUEST will group combinations consisting of 1 pair each into an acquisition data set." END_FIELD FIELD max_spoiler TYPE R4 DESCRIPTION "This field specifies the estimate of the maximum probability that an object other than the guide star pair will be in the magnitude window recommended for acquisition; i.e., the maximum likelihood that another object can spoil the acquisition of a guide star pair." END_FIELD FIELD min_s_spl_pr TYPE R4 DESCRIPTION "This field specifies the minimum estimated single spoiler radius for the primary star (the star in a pair which is acquired first). It is used to specify the minimum radial distance from the guide star within which there is a significant probability that at least ONE spoiler object has a magnitude less than the guide star upper magnitude setting." UNITS "ARCSECONDS" END_FIELD FIELD min_d_spl_pr TYPE R4 DESCRIPTION "This field specifies the minimum estimated double spoiler radius for the primary star (the star in a pair which is acquired first). It is used to specify the minimum radial distance from the guide star within which there is a significant probability that at least TWO spoiler objects have a magnitude less than the guide star upper magnitude setting." UNITS "ARCSECONDS" END_FIELD FIELD min_s_spl_sc TYPE R4 DESCRIPTION "This field specifies the estimated single spoiler radius for the secondary guide star (the star in a pair which is acquired last). It is used to specify the minimum radial distance from the guide star within which there is a significant probability that at least one spoiler object has a magnitude less than the guide star upper magnitude setting." UNITS "ARCSECONDS" END_FIELD FIELD f1_min_gs_mag TYPE R4 DESCRIPTION "This field is the minimum guide star magnitude for FGS 1. It specifies the minimum acceptable magnitude for each candidate guide star pair which is considered for the acquisition." UNITS "MAGNITUDE" END_FIELD FIELD f2_min_gs_mag TYPE R4 DESCRIPTION "This field is the minimum guide star magnitude for FGS 2. It specifies the minimum acceptable magnitude for each candidate guide star which is considered for the acquisition." UNITS "MAGNITUDE" END_FIELD FIELD f3_min_gs_mag TYPE R4 DESCRIPTION "This field is the minimum guide star magnitude for FGS 3. It specifies the minimum acceptable magnitude for each candidate guide star is considered for the acquisition." UNITS "MAGNITUDE" END_FIELD FIELD min_gs_sep TYPE R4 DESCRIPTION "This is the minimum guide star pair separation. It specifies the minimum separation between guide stars of a guide star pair." UNITS "ARCSECONDS" END_FIELD FIELD min_roll_rng TYPE R8 DESCRIPTION "This field specifies the minimum intersected V3-axis position angle range. It specifies the minimum size of the intersection of guide star pair roll ranges for those guide star pairs which satisfy the acquisition criteria for an acquisition." UNITS "DEGREES" END_FIELD FIELD min_usbl_wnd TYPE C17 DESCRIPTION "This is the minimum intersected usability window, used only for moving targets. It specifies the minimum size of the intersection of the guide star pair usability windows for those guide star pairs that satisfy the acquisition criteria for an acquisition. This is a delta_time field whose format of YYYY.DDD.HH:MM:SS. A blank field means 0." RANGE "0000.000:00:00:00..0050.365.23:59:59" END_FIELD FIELD p_sea_rad TYPE R4 DESCRIPTION "This is the maximum primary search radius, which specifies the maximum search radius for the primary guide star. The primary guide star is the star in a pair that is acquired first." UNITS "ARCSECONDS" END_FIELD FIELD s_sea_rad TYPE R4 DESCRIPTION "This is the maximum secondary search radius, which specifies the maximum search radius for the secondary guide star. The secondary star is the star in a pair that is acquired after the primary star." UNITS "ARCSECONDS" END_FIELD FIELD st_att_unc TYPE R4 DESCRIPTION "This field specifies the ST attitude uncertainty." END_FIELD FIELD rr_opt TYPE C1 DESCRIPTION "This field is the roll range option flag. It specifies the type of roll range data for which the quide star pairs shall be selected. A 'C' indicates they can be centerlined, an 'A' indicates they can be acquired, and a 'G' indicates the guide star roll range." DISCRETE "A", "C", "G" END_FIELD FIELD rr_lvl TYPE C1 DESCRIPTION "This field specifies the roll range level. It is valid for a roll range option flag value of 'C'. It indicates the level of centerline roll ranges to be selected. 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." DISCRETE " ", "1", "2", "3" END_FIELD FIELD rr_ff TYPE R*4 DESCRIPTION "This field specifies a roll range fudge factor. It is used to further restrict the selected roll ranges. The field is added to the selected minimum V3 position angle and subtracted from the maximum V3 position angle." UNITS "DEGREES" END_FIELD FIELD over_nr_off TYPE I*4 DESCRIPTION "Flag indicating whether to override nominal roll offset for a guide star request. Only used for ST orientation type of nominal. When this flag is TRUE (non-zero), the field qbacqs.over_nr_limit is used instead of the request's nominal roll offset." END_FIELD FIELD over_nr_limit TYPE R*8 DESCRIPTION "If qbacqs.over_nr_off is TRUE (non-zero) and this field is non-zero, then this value is used instead of the request's nominal roll offset. Only used for ST orientation type of nominal." UNITS "DEGREES" END_FIELD FIELD max_time_pts TYPE I*4 DESCRIPTION "This field specifies the number of track segment lengths to be calculated for moving target guide star requests." END_FIELD FIELD rec_id TYPE I*4 DESCRIPTION "This field allows more than one qbacqs record per obset. This field serves as a key for the various records for a given observation set. When a guide star request is performed on this obset, the qbacqs record with the record id matching the qbs_obset override_rec_id field will be used for the request." RELATED_FIELDS "qbs_obset.override_rec_id" END_FIELD FIELD comment TYPE C255 DESCRIPTION "This field is a user comment. When a new QBACQS record is created via the gs_request GUI, the user can enter an explanatory comment about the new record, which is stored in this field." END_FIELD END_RECORD !------------------------------------------------------------------------------ ! ! RELATION DECLARATION ! !------------------------------------------------------------------------------ RELATION qbacqs TYPE QBACQS_TYPE DESCRIPTION "Guide Star Acquisition Criteria Data Relation" SUBSYSTEM_USING "SPSS" RELATED_FIELDS "qbacqd_def.*" INDEX qbacqs_1 TYPE unique, clustered FIELDS proposal_id, obset_id, version_num, scenario_acq, rec_id END_INDEX END_RELATION !------------------------------------------------------------------------------ ! ! INSTANCE DECLARATION ! !------------------------------------------------------------------------------ INSTANCE qbacqs GLOBAL TYPE QBACQS_TYPE END_INSTANCE

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