F. Landis Markley1 and John D. Nelson2
1NASA Goddard Space Flight Center
2Lockheed Missles & Space Company, Inc.
1992 AIAA Guidance, Navigation and Control Conference
August 10-12, 1992, Hilton Head Island, SC
A Collection of Technical Papers, Part 3, pp. 1445-1459
The purpose of this paper is to document the Zero-Gyro Sunpoint mode for Hubble Space Telescope, a safemode designed to ensure a power positivestate without the use of rate gyros. This paper presents an overview of the Zero-Gyro Sunpoint algorithm, followed by details of the algorithm, control system design, and simulation results. A new, related safemode test, the System Momentum Test, is also discussed.
NASA Office of Logic Design
Last Revised: February 03, 2010
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