StarCam SG100: a high-update rate, high-sensitivity stellar gyroscope for spacecraft

Anup Katake; Christian Bruccoleri

doi:10.1117/12.839107

25 January 2010 StarCam SG100: a high-update rate, high-sensitivity stellar gyroscope for spacecraft

Anup Katake, Christian Bruccoleri

Proceedings Volume 7536, Sensors, Cameras, and Systems for Industrial/Scientific Applications XI; 753608 (2010) https://doi.org/10.1117/12.839107
Event: IS&T/SPIE Electronic Imaging, 2010, San Jose, California, United States

Abstract

A typical configuration of attitude estimation system for a spacecraft consists of multiple star trackers, coupled with gyroscopes and coarse sensors such as Sun or Earth sensors. The combination of these sensors results in high mass, volume and power requirements. StarVision has been actively developing an unique sensor that is capable of providing attitude and angular rate information from star measurements at update rates of 100Hz. The SG100 stellar gyroscope is built around an image intensified imaging core that is sensitive to stars as faint as visual magnitude 10 at very small exposure times. In this paper we report the development of the SG100 sensor. Results from sensitivity analysis as well as night sky tests at angular rates as high as 20deg/s will be presented. Test data shows that the SG100 far exceeds the requirements of star sensitivity and noise levels even under non-ideal imaging conditions.

Citation Download Citation

Anup Katake and Christian Bruccoleri "StarCam SG100: a high-update rate, high-sensitivity stellar gyroscope for spacecraft", Proc. SPIE 7536, Sensors, Cameras, and Systems for Industrial/Scientific Applications XI, 753608 (25 January 2010); https://doi.org/10.1117/12.839107

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