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26 May 1995 Design, construction, and test of the aspect camera assembly for the Advanced X-Ray Astrophysics Facility-Imaging
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Abstract
The Aspect Camera Assembly (ACA) is a state-of-the-art star tracker that provides real-time attitude information to the Advanced X-Ray Astrophysics Facility-Imaging (AXAF-I), and provides imaging data for post-facto ground processing. The ACA consists of a telescope with a charge coupled device (CCD) focal plane, associated focal plane read-out electronics, and an on-board processor that processes the focal plane data to produce star image location reports. On-board star image locations are resolved to 0.8 arc-sec, 1 (sigma) and post-facto algorithms yield 0.2 arc-sec, 1 (sigma) star location accuracy. A high- fidelity ACA breadboard was built along with a high accuracy test facility. In air, image position determination has been verified to 0.2 arc-sec, 1 (sigma) accuracy. This paper presents the system requirements and a description for the ACA. A design description is included for both the ACA and the test facility, and performance results are presented.
© (1995) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Dan L. Michaels and Richard A. Deters "Design, construction, and test of the aspect camera assembly for the Advanced X-Ray Astrophysics Facility-Imaging", Proc. SPIE 2468, Acquisition, Tracking, and Pointing IX, (26 May 1995); https://doi.org/10.1117/12.210427
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