ACE Definitive Attitude, Hourly Values, Direction Cosines in RTN, GSE, and J2000 GCI Coordinates

Data in GCI and RTN Coordinates are received Daily by the ACE Science Center, ASC, from the ACE Flight Dynamics Facility, FDF, at GSFC. ASC transforms the Data into the other Coordinate Systems.

The Data are reported for the Beginning and End of each DSN Telemetry Pass, and also for the Beginning and End of each Spacecraft Maneuver during a DSN Pass. Because the Attitude and Orbit of the ACE Spacecraft change relatively slowly, the FDF does not provide the Data on finer Time Scales.