Performance tests of two precision attitude determination systemsResults of laboratory performance tests of two satellite attitude determination systems are given. One system employed a strapdown star tracker and gyro assembly, the other a single axis, gimballed star tracker and a gyro assembly. The laboratory tests simulated those orbit conditions which would be experienced on a three axis stabilized, earth pointed satellite in geosynchronous orbit. A ground-fixed laboratory test was performed in which system axes remained stationary in the laboratory coordinates while revolving star beams stimulated the star trackers. The laboratory instrumentation techniques used to meet the stringent accuracy requirements are described. Results are presented which show both systems met the performance goal of 3.6 arc seconds. Comparative analyses of both systems are also discussed.
Document ID
19770059903
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Mcaloon, K. J. (TRW Defense and Space Systems Group Redondo Beach, CA, United States)
Farrenkopf, R. L. (TRW Defense and Space Systems Group Redondo Beach, CA, United States)
Belsky, F. J. (TRW Defense and Space Systems Group Redondo Beach, CA, United States)
Mann, R. J. (TRW Defense and Space Systems Group Redondo Beach, Calif., United States)