Flight performance of TOPEX/POSEIDON star trackers

David J. Flynn; Walter J. Fowski; Tooraj Kia

doi:10.1117/12.157094

23 September 1993 Flight performance of TOPEX/POSEIDON star trackers

David J. Flynn, Walter J. Fowski, Tooraj Kia

Proceedings Volume 1949, Space Guidance, Control, and Tracking; (1993) https://doi.org/10.1117/12.157094
Event: Optical Engineering and Photonics in Aerospace Sensing, 1993, Orlando, FL, United States

Abstract

The TOPEX/POSEIDON spacecraft was launched on August 10, 1992. This paper presents data on the measured performance of the ASTRA Star Trackers supplied by Hughes Danbury Optical Systems (HDOS) for this satellite. The HDOS ASTRA Star Tracker is a charge coupled device (CCD), microprocessor based replacement for the NASA Standard Fixed Head Star Tracker. The position and magnitude accuracy of the star trackers computed from measured flight data are compared with ground measurements and system models. The performance of novel transient rejection algorithms implemented in the ASTRA Star Tracker which allows uninterrupted operation in the South Atlantic Anomaly (SAA) where the sensor is subjected to high proton flux levels, also are presented.

Citation Download Citation

David J. Flynn, Walter J. Fowski, and Tooraj Kia "Flight performance of TOPEX/POSEIDON star trackers", Proc. SPIE 1949, Space Guidance, Control, and Tracking, (23 September 1993); https://doi.org/10.1117/12.157094

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