ATTITUDE FILE

This file contains the output of the attitude determination program. Data records will be in ASCII format. The data consists of a series of time-tagged coefficients from fits of attitude motion. These parameters will be used with software (AGMOD) provided to the agencies to calculate their sensor LOS (line-of-sight) as a function of time. The file structure consists of header information followed by the fit coefficient data.

                               HEADER INFORMATION

           RECORD                                             WORD
           NUMBER         DESCRIPTION                         TYPE

              1           FILE NAME                           ALPHA
              2           VEHICLE ID                          ALPHA
              3           GTO (LASSII) PERIOD NUMBER          ALPHA
              4           YEAR                                INTEGER
              5           DAY OF YEAR                         INTEGER
              6           UT AT START OF DATA (MSEC)          INTEGER
              7           UT AT END OF DATA (MSEC)            INTEGER
              8           NUMBER OF FIT SPANS                 INTEGER

                             FIT COEFFICIENT RECORDS

           RECORD                                             WORD
           NUMBER         DESCRIPTION                         TYPE

              1           INDEX (STATE VECTOR) NUMBER         INTEGER
              2           SEGMENT START TIME (SEC)            FLOATING
              3           SEGMENT END TIME (SEC)              FLOATING
              4           TIME CONVERSION SCALE FACTOR        FLOATING
              5           TIME CONVERSION OFFSET FACTOR       FLOATING
              6           CONDITION FLAG NUMBER               INTEGER
              7           ORDER OF RA FIT COEFFICIENT N1      INTEGER
              8           SPIN AXIS RA FIT COEFFICIENT 1      FLOATING
              9           SPIN AXIS RA FIT COEFFICIENT 2      FLOATING


                          SPIN AXIS RA FIT COEFFICIENT N1     FLOATING
                          ORDER OF DEC. FIT COEFFICIENT N2    INTEGER
                          SPIN AXIS DEC.  COEFFICIENT 1       FLOATING
                          SPIN AXIS DEC.  COEFFICIENT 2       FLOATING


                          SPIN AXIS DEC.  COEFFICIENT N2      FLOATING
                          ORDER OF SPIN RATE FIT COEF. N3     INTEGER
                          SPIN RATE COEFFICIENT 1             FLOATING
                          SPIN RATE COEFFICIENT 2'            FLOATING


                          SPIN RATE COEFFICIENT N3            FLOATING
                          SPIN PHASE AT START OF SEGMENT      FLOATING