Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2018, Vol. 15, No. 6, pp. 82-89
The test bench study of star image energy center determination error in star trackers
R.V. Bessonov
1 , E.V. Belinskaya
1 , N.N. Brysin
1 , S.V. Voronkov
1 , S.A. Prokhorova
1 , N.A. Stroilov
1 , A.A. Forsh
1 1 Space Research Institute RAS, Moscow, Russia
Accepted: 19.11.2018
DOI: 10.21046/2070-7401-2018-15-6-82-89
The article describes the process of measuring one of a methodical error type and the results of its measurement. This kind of a methodical error is a discrepancy between the calculated energy center of a pinhole source image and its geometrical projection center at the scale of a single image sensor pixel. This work is an experimental study of the results published in works where a theoretical description and the methodical error numerical modeling of star sensors are provided. The study was carried out at the test bench developed and created in IKI RAS for the determination of interior orientation elements (SOEVO). SOEVO is capable to provide turn of the star tracker with both a high positioning accuracy and a high angular position measurement. In work flow on SOEVO systematic errors were revealed and the measuring technique was improved.
Keywords: star tracker, BOKZ, methodical error, image sensor
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