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Proceedings Paper

GOES-12 molecular contamination
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Paper Abstract

The GOES-12 spacecraft exhibits a loss of heat rejection capabilities over the long term. It also presents a unique opportunity to evaluate this change at more than one temperature. The Imager and Sounder instruments use passive radiant coolers to reject heat from their sensors, and operate near 200 Kelvin. The Solar X-ray Imager (SXI) instrument mirror operates at or above 273 Kelvin. The mass deposition for SXI is substantially less than that of the Imager and Sounder. The phenomenon is evaluated and reasons for it discussed. This paper follows other descriptions by the author of the electrostatic return and introduces photolytic interactions at different temperatures.

Paper Details

Date Published: 7 September 2006
PDF: 9 pages
Proc. SPIE 6291, Optical Systems Degradation, Contamination, and Stray Light: Effects, Measurements, and Control II, 62910E (7 September 2006); doi: 10.1117/12.682006
Show Author Affiliations
Jack Sanders, Swales Aerospace (United States)
Glenn Rosecrans, Swales Aerospace (United States)


Published in SPIE Proceedings Vol. 6291:
Optical Systems Degradation, Contamination, and Stray Light: Effects, Measurements, and Control II
O. Manuel Uy; John C. Fleming; Michael G. Dittman, Editor(s)

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