VARIABLE FMT DESCRIPTION NAME A*15 STATION NAME STYP Int DATA TYPE 1= OBSERVATORY 2= SATELLITE 3= SURVEY IREF Int REFERENCE FRAME 1= GEODETIC 2= GEOCENTRIC 3= SATELLITE COORDINATES MJD Int MODIFIED JULIAN DAY (JAN 1, 1900 = 15020) MSEC Int MILLISECONDS OF DAY CLT Real COLATITUDE (Radians) ELN Real EAST LONGITUDE (Radians) ALT Real ALTITUDE OR RADIUS ABOVE REFERENCE SPHERE (KM) BQ(14) Int MEASUREMENT QUALITY CODE 0= DATA MISSING OR UNUSABLE 2= DATA USABLE BM(14) Real FIELD MEASUREMENTS BS(14) Real APRIORI ERROR ESTIMATES BQ,BM,BS REPRESENT THE FOLLOWING COMPONENTS (1) X (NORTH) FOR BM and BS (nT) (2) Y (EAST) FOR BM and BS (nT) (3) Z (+ DOWN) FOR BM and BS (nT) (4) dX/dt FOR BM and BS (nT/YR) (5) dY/dt FOR BM and BS (nT/YR) (6) dZ/dt FOR BM and BS (nT/YR) (7) D DECLINATION FOR BM and BS (Radians) (8) I DECLINATION FOR BM and BS (Radians) (9) H HORIZONTAL FOR BM and BS (nT) (10) B TOTAL FIELD FOR BM and BS (nT) (11) dD/dt FOR BM and BS (Radians/YR) (12) dI/dt FOR BM and BS (Radians/YR) (13) dH/dt FOR BM and BS (nT/YR) (14) dB/dt FOR BM and BS (nT/YR) DST Real MAGNETIC ACTIVITY (nT) DSTT Real TIME DERIVATIVE OF Dst (nT/HR) T(9) Real ROTATION MATRIX FROM EARTH FIXED GEOCENTRIC TO SPACECRAFT COORDINATES