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Proceedings Paper

FUSE: fine error sensor optical performance
Author(s): Jeffrey W. Kruk; Pierre Chayer; John B. Hutchings; Christopher L. Morbey; Richard G. Murowinski
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Paper Abstract

The Far Ultraviolet Spectroscopic Explorer mission imposes stringent requirements on the satellite attitude control system. Target acquisition accuracy and target tracking stability must each be no greater than 0.5 arcseconds FWHM. The data required by the attitude control system to meet these requirements are provided by two redundant Fine Error Sensors. Each Fine Error Sensor operates as a slit-jaw camera that provides either complete images of the star-field around the line of sight of the telescope, or centroided positions of selected guide stars in the field of view. The satellite pointing requirements must be met over a wide dynamic range of target or guide star brightness, for both sparse and crowded starfields, and for targets that may be either point sources or extended objects. We will describe the operational characteristics of the FES and present data on its performance. We also discuss the optical, mechanical, thermal, and electronic design challenges encountered in meeting the mission requirements, and how they were addressed in the context of a very tight development schedule.

Paper Details

Date Published: 18 December 2000
PDF: 12 pages
Proc. SPIE 4139, Instrumentation for UV/EUV Astronomy and Solar Missions, (18 December 2000); doi: 10.1117/12.410519
Show Author Affiliations
Jeffrey W. Kruk, Johns Hopkins Univ. (United States)
Pierre Chayer, Johns Hopkins Univ. (United States)
John B. Hutchings, Dominion Astrophysical Observatory (Canada)
Christopher L. Morbey, Dominion Astrophysical Observatory (Canada)
Richard G. Murowinski, Dominion Astrophysical Observatory (Canada)


Published in SPIE Proceedings Vol. 4139:
Instrumentation for UV/EUV Astronomy and Solar Missions
Silvano Fineschi; Clarence M. Korendyke; Oswald H. W. Siegmund; Bruce E. Woodgate, Editor(s)

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