Electrostatic return in orbit of GOES-8

Jack T. Sanders Jr.

doi:10.1117/12.555899

15 October 2004 Electrostatic return in orbit of GOES-8

Jack T. Sanders Jr.

Proceedings Volume 5526, Optical Systems Degradation, Contamination, and Stray Light: Effects, Measurements, and Control; (2004) https://doi.org/10.1117/12.555899
Event: Optical Science and Technology, the SPIE 49th Annual Meeting, 2004, Denver, Colorado, United States

Abstract

The GOES-8 Imager and Sounder radiant coolers have lost some of its ability to dissipate heat over time. This is shown by the temperature increase over time of the vacuum cooler housings that are cooled with optical solar reflector (OSR) radiators. Contamination has a significant, well-documented effect on the solar absorptance of OSRs. This evaluation attempts to discern how much molecular contamination has collected on the Imager and Sounder radiant coolers by analyzing the increase in temperature of the vacuum cooler housing. In the first part, temperature change is transformed into solar absorptance units by a method devised by ITT. The second part transforms the solar absorptance gain into a molecular film thickness and correlates the film thickness to the number of days after radiant cooler cover deployment.

Citation Download Citation

Jack T. Sanders Jr. "Electrostatic return in orbit of GOES-8", Proc. SPIE 5526, Optical Systems Degradation, Contamination, and Stray Light: Effects, Measurements, and Control, (15 October 2004); https://doi.org/10.1117/12.555899

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