Computer Science – Performance
Scientific paper
Nov 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004esasp.571e..55j&link_type=abstract
Proceedings of The 4S Symposium: Small Satellites, Systems and Services (ESA SP-571). 20 - 24 September 2004, La Rochelle, Franc
Computer Science
Performance
Scientific paper
The ever-ongoing quest to improve space instrumentation is exemplified by the development of autonomous of star trackers. An introduction to the previous and current development efforts is given together with the main design drivers for star trackers. The basic characteristics and performance requirements are summarized and a description of and comparison with one of the first fully autonomous star trackers, the Advanced Stellar Compass (ASC) is given. The design and development of the next generation star tracker, the μASC (or MicroASC), is described and the qualification status is reported along with the performance characteristics measured during real-sky tests. The new star tracker inherits the full autonomy of its predecessor and includes new features such as high update rates (up to 22 true updates pr second), full in- flight reconfiguration of the four cross strapped camera heads along with a 30+ years lifetime. Finally a brief description of possible "add-ons" is given.
Denver Troelz
Jørgensen John Leif
Jørgensen Peter S.
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