/* TARGET HISTORY DATA STRUCTURE */
     
    OBJECT                      = COLUMN
        NAME                    = START_OBT
        DATA_TYPE               = ASCII_REAL
        START_BYTE              = 1
        BYTES                   = 15
        UNIT                    = SECOND
        DESCRIPTION             = "S/C clock count at event start."
    END_OBJECT                  = COLUMN
                                
    OBJECT                      = COLUMN
        NAME                    = START_UTC
        DATA_TYPE               = DATE
        START_BYTE              = 17
        BYTES                   = 23
        DESCRIPTION             = "Event start time in UTC format."
    END_OBJECT                  = COLUMN
     
    OBJECT                      = COLUMN
        NAME                    = STOP_OBT
        DATA_TYPE               = ASCII_REAL
        START_BYTE              = 41
        BYTES                   = 15
        UNIT                    = SECOND
        DESCRIPTION             = "S/C clock count at event stop."
    END_OBJECT                  = COLUMN
                                
    OBJECT                      = COLUMN
        NAME                    = STOP_UTC
        DATA_TYPE               = DATE
        START_BYTE              = 57
        BYTES                   = 23
        DESCRIPTION             = "Event stop time in UTC format."
    END_OBJECT                  = COLUMN
                                
    OBJECT                      = COLUMN
        NAME                    = EVENT
        DATA_TYPE               = CHARACTER
        START_BYTE              = 82
        BYTES                   = 8
        DESCRIPTION             = "Textual description of the event."
    END_OBJECT                  = COLUMN

    OBJECT                      = COLUMN
        NAME                    = FLUX_OR_TIP
        DATA_TYPE               = ASCII_INTEGER
        START_BYTE              = 92
        BYTES                   = 2
        DESCRIPTION             = "
        For events labelled EXPOSURE this field contains the maximum
        dust flux in the given period while the events reading SCANNING
        are showing the number of the tip used for imaging."
    END_OBJECT                  = COLUMN