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Proceedings Paper

Design, construction, and test of the aspect camera assembly for the Advanced X-Ray Astrophysics Facility-Imaging
Author(s): Dan L. Michaels; Richard A. Deters
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Paper 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.

Paper Details

Date Published: 26 May 1995
PDF: 12 pages
Proc. SPIE 2468, Acquisition, Tracking, and Pointing IX, (26 May 1995); doi: 10.1117/12.210427
Show Author Affiliations
Dan L. Michaels, Ball Aerospace Systems Group (United States)
Richard A. Deters, Ball Aerospace Systems Group (United States)

Published in SPIE Proceedings Vol. 2468:
Acquisition, Tracking, and Pointing IX
Michael K. Masten; Larry A. Stockum, Editor(s)

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