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23 October 1984 The Pointing System For Space Telescope
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Proceedings Volume 0493, Optical Platforms; (1984) https://doi.org/10.1117/12.943778
Event: The National Symposium and Workshop on Optical Platforms, 1984, Huntsville, United States
Abstract
This paper provides a description of the Space Telescope (ST) Pointing System (PS) and an overview of the pointing operations and procedures that support celestial observations. It is aimed at indicating to the user-astronomer the ST pointing capabilities and the mechanics of insuring the presence of the correct star in an instrument aperture. The paper begins by summarizing the general requirements regarding image stability and pointing accuracy to which the ST is being designed. This is followed by a description of the PS, in which primary elements are rate gyros, star sensors, reaction wheels, and an on-board digital computer. The Fine Guidance System (FGS) is the star sensor that provides the precise, long term celestial reference and is given special emphasis, since its autonomous modes are so intimately tied to the acquisition process. A description of a nominal acquisition sequence is given, and some strategies for dealing with acquisition and pointing anomalies are discussed.
© (1984) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Gerald S. Nurre and Hugh J. Dougherty "The Pointing System For Space Telescope", Proc. SPIE 0493, Optical Platforms, (23 October 1984); https://doi.org/10.1117/12.943778
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