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Proceedings Paper

Results of STS-51 orbiter crew compartment contamination generation and extravehicular activity (EVA) payload bay transfer experiment
Author(s): Patricia A. Hansen; Randy J. Hedgeland; Carl R. Maag; Calvin H. Seaman
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Paper Abstract

Contamination witness plates were flown on STS-51 as part of a NASA Extravehicular Activity (EVA) Flight Test Experiment to quantify and identify particulate contamination generated in the Orbiter crew compartment which has the potential to contaminate the Extravehicular Mobility Units (EMUs) and transfer from the EMUs to mission critical hardware during EVAs. Particles, larger than 100 microns, were found on both witness plates, indicating transfer from the EMUs during EVAs. For missions such as the Hubble Space Telescope First Servicing Mission, where contamination critical optical elements were exposed during EVAs, the potential for particulate transfer from the crew compartment to these optical elements and the Hubble Space Telescope was evaluated.

Paper Details

Date Published: 19 October 1994
PDF: 8 pages
Proc. SPIE 2261, Optical System Contamination: Effects, Measurements, and Control IV, (19 October 1994); doi: 10.1117/12.190131
Show Author Affiliations
Patricia A. Hansen, Swales and Associates, Inc. (United States)
Randy J. Hedgeland, NASA Goddard Space Flight Ctr. (United States)
Carl R. Maag, T&M Engineering (United States)
Calvin H. Seaman, NASA Johnson Space Ctr. (United States)

Published in SPIE Proceedings Vol. 2261:
Optical System Contamination: Effects, Measurements, and Control IV
A. Peter M. Glassford, Editor(s)

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