An adaptive algorithm for n-body field expansions
Weinberg, Martin D.
1998-05-28
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12 records were found.
The OAO was successfully operating for approximately 11 months and has made over 2500 stellar observations. The OAO control system was a complex system which takes the 4500-lb vehicle through initial stabilization to star tracker control where a pointing accuracy of less than 1 arc minute was achieved. To obtain this pointing accuracy, the system used six orthogonally mounted gimbaled star trackers. The trackers were two gimbaled devices, having a 1-deg field of view with a + or - 43 deg gimbal excursion. The tracker could recognize and track 2.0 magnitude stars or brighter. The flight results indicated spacecraft pointing accuracies of less than 1 arc minute after tracker calibration with spacecraft jitter less than 3 arc seconds.
Comment: 19 pages total, 4 figures; accepted for publication in Phys. Rev. B
Comment: 32 pages, 12 figures. Previous version replaced to improve
readability
Comment: 14 pages, 2 figures
Comment: 19 pages. 3 figures
Comment: 21 pages, 4 figures
Comment: 15 pages and 3 figures
Comment: 21 pages and 5 figures
