Selection of Design Parameters in Optical System of Star Tracker for a Satellite

Astronomy and Astrophysics – Astronomy

Scientific paper

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Scientific paper

In order to develop star trackers for a satellite in our country we studied selection procedure of optical parameters. For logical selection of the optical parameters, we simulated the entire processes in which star lights imaged on a CCD sensor were read into and processed in an associated electronics. The simulation resulted in relations between star's magnitude and achievable pointing accuracy, from which we derived optimal optical parameters to satisfy a required pointing accuracy of a star tracker. The selected optical parameters were used in an optical system design of a star tracker with a pointing accuracy of 10 arcsec.

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