NASA NTRS · 19880062984
A precision pointing system for space telescope class optical trackers
Abstract
This paper reports on the results of a study effort whose main objective was to develop a conceptual design for a space based, large-payload (3000 kg) pointing system capable of both rapid slew maneuvers (0.35 rad/sec-squared) and very stable tracking (1 microrad, 1 sigma, each axis). The key features of the resulting solution are: (1) cross elevation over elevation gimbal system, (2) closed cross elevation gimbal ring, (3) graphite-epoxy structure, (4) two-motor reactionless joint torquers, (5) payload mounted vernier reaction wheel, and (6) gyrostabilized model following control system.
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Sevaston, George E., Schier, J. Alan, Iskenderian, Theodore C., Lin, Yu-Hwan, Satter, Celeste M.. 1988-01-01. A precision pointing system for space telescope class optical trackers. https://ntrs.nasa.gov/citations/19880062984
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