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!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!
! SDDL Name:	ZWGBAD_STARS.SDDL
!
! Purpose:      This SDDL file defines the wgbad_stars relation.
!
! Modification History:
!
!   Date       OPR      Who                       Reason
! --------   -------    ---   -------------------------------------------------
! 10/ 3/94    27329     RSL   Original implementation
!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!
!

LANGUAGE	FORTRAN, SQL

INCLUDE         ZSPSS_USER_TYPES.SDDL
 
RECORD  BADSTR_TYPE

!------------------------------------------------------------------------------
!
!   RECORD INFORMATION
!
!------------------------------------------------------------------------------


    DESCRIPTION       "The wgbad_stars relation contains information about 
                       objects that have been identified as bad guide stars and 
                       will not be selected for use. These objects are either
                       erroneously classified as stars in the Guide Star
                       Catalog (and are not stars), or they are unknown 
                       variable stars.
                       
                       The bad star data is sent to SPSS from the Guide Star
                       Selection System. The SPSS program WRESPONS reads
                       the data and inserts it into the wgbad_stars relation.
                       WRESPONS then checks to see if any previously selected 
                       pairs in wggs_pairs contain the bad star. For such 
                       pairs, the wggs_pairs usable field is updated to 'B'
                       (meaning the pair is associated with a bad star).
                       WRESPONS also sets the usable field to 'B' for any 
                       subsequently received pairs that include the star.
                  
                       GSSS/CENTER (used for centerlining) does not 
                       process pairs where the usable field is set to 'B'
                       or 'N' (not usable)."
                       

!------------------------------------------------------------------------------
!
!   FIELD INFORMATION
!
!------------------------------------------------------------------------------



    FIELD  alert_number
        TYPE            C10
        DESCRIPTION     "This string represents a decimal integer
                        uniquely identifying the specific bad guide
                        star alert."
    END_FIELD



    FIELD  alert_date
        TYPE BRIEF_TIME_STAMP_TYPE
        DESCRIPTION     "This string specifies the date on which
                        the alert was processed by the Guide Star 
                        Selection System."
    END_FIELD



    FIELD  gs_id
        TYPE GS_ID_TYPE
        DESCRIPTION     "The identified star has been determined to be 
                        unacquirable by the FGSs."
    END_FIELD



    FIELD  comment1
        TYPE COMMENT_LINE_TYPE
    END_FIELD



    FIELD  comment2
        TYPE COMMENT_LINE_TYPE
    END_FIELD



    FIELD  comment3
        TYPE COMMENT_LINE_TYPE
    END_FIELD



    FIELD  comment4
        TYPE COMMENT_LINE_TYPE
    END_FIELD



    FIELD  comment5
        TYPE COMMENT_LINE_TYPE
    END_FIELD



    FIELD  comment6
        TYPE COMMENT_LINE_TYPE
    END_FIELD



    FIELD  comment7
        TYPE COMMENT_LINE_TYPE
    END_FIELD



    FIELD  comment8
        TYPE COMMENT_LINE_TYPE
    END_FIELD



    FIELD  comment9
        TYPE COMMENT_LINE_TYPE
    END_FIELD



    FIELD  comment10
        TYPE COMMENT_LINE_TYPE
    END_FIELD


END_RECORD


!------------------------------------------------------------------------------
!
!   RELATION DECLARATION
!
!------------------------------------------------------------------------------


RELATION  wgbad_stars

    TYPE             BADSTR_TYPE

    DESCRIPTION      "Bad Guide Stars Relation"

    RELATED_FIELDS  "wggs_pairs.usable"

    SUBSYSTEM_USING  "SPSS"

END_RELATION

!------------------------------------------------------------------------------
!
!   INSTANCE DECLARATION
!
!------------------------------------------------------------------------------


INSTANCE  wgbad_stars

    GLOBAL

    TYPE        BADSTR_TYPE

END_INSTANCE

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