Miniature star tracker for precise attitude reference in space

Lawrence W. Cassidy

doi:10.1117/12.188075

Abstract

HDOS's Model HD-1003 Miniature Star Tracker provides spacecraft designers with exceptional attitude determination performance in an all-solid state design, which weights only 7 lb. Key to achieving the requisite performances is the radiation tolerant, moderate field of view (FOV) optical system which provides, in conjunction with the charge-coupled device (CCD) detector, sufficient sensitivity and area coverage to ensure an average of 6 stars in each FOV during each sample interval. Multiple star data, processed by the tracker's advanced microprocessor, facilitates star identification and improves accuracy (especially in the all-stellar mode) by up to three times when compared to current 1-star trackers. HDOS's on-going HD-1003 development program has now entered the hardware stage. This paper describes the unique optical and electronic capabilities of the HD-1003, which will be of significant interest to future spacecraft designers, especially those involved with 'Small-Sats'.

Citation Download Citation

Lawrence W. Cassidy, "Miniature star tracker for precise attitude reference in space", Proc. SPIE 2210, Space Optics 1994: Space Instrumentation and Spacecraft Optics, (30 September 1994); doi: 10.1117/12.188075; https://doi.org/10.1117/12.188075

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