Pattern recognition of star constellations for spacecraft applications

Details Pattern recognition of star constellations for spacecraft applications Pattern recognition of star constellations for spacecraft applications

Jun 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992iaesm...7...34l&link_type=abstract

IEEE Aerospace and Electronic Systems Magazine (ISSN 0885-8985), vol. 7, no. 6, June 1992, p. 34-41.

Astronomy and Astrophysics

Astronomy

Algorithms, Astronomical Catalogs, Constellations, Pattern Recognition, Satellite Attitude Control, Satellite Imagery, Software Tools, Data Bases, On-Line Systems

Scientific paper

A software system for a star imager for 'on-line' satellite attitude determination is described. The system works with a single standard commercial CCD-camera with a high aperture lens and an on-board star catalog. It is capable of both an initial coarse attitude determination without any a priori knowledge of the satellite, orientation and a high accuracy attitude determination based on prediction and averaging of several identified star constellations. In the high accuracy mode the star image aims at an accuracy better than 2 arcsec, with a processing time of less than a few seconds. The star imagar is developed for the Danish 'microsatellite' Oersted.

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