A microprocessor controlled star-tracker (STT) using a charge coupled device (CCD) as a detector has been developed for the purpose of being applied to attitude determination and control of a scientific satellite. The STT, with the field of view (FOV) of 8 deg x 6 deg, can detect and track a star as dim as 5.7th magnitude with accuracy of better than half an arc-minute. A pair of the STTs are aboard the X-ray astronomy satellite ASTRO-C that was launched on February 5, 1987. In this paper, the STT design, and its sensitivity and accuracy analysis are described. Preliminary in-flight results are also presented.
CCD star trecker for scientific satellites
CCD-Sternnachlaufgeraet fuer Forschungssatelliten
NEC Research and Development ; 89 ; 63-71
1988
9 Seiten, 14 Bilder
Aufsatz (Zeitschrift)
Englisch
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