Results of STS-51 orbiter crew compartment contamination generation and extravehicular activity (EVA) payload bay transfer experiment

Patricia A. Hansen; Randy J. Hedgeland; Carl R. Maag; Calvin H. Seaman

doi:10.1117/12.190131

19 October 1994 Results of STS-51 orbiter crew compartment contamination generation and extravehicular activity (EVA) payload bay transfer experiment

Patricia A. Hansen, Randy J. Hedgeland, Carl R. Maag, Calvin H. Seaman

Author Affiliations +

Proceedings Volume 2261, Optical System Contamination: Effects, Measurements, and Control IV; (1994) https://doi.org/10.1117/12.190131
Event: SPIE's 1994 International Symposium on Optics, Imaging, and Instrumentation, 1994, San Diego, CA, United States

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.

Citation Download Citation

Patricia A. Hansen, Randy J. Hedgeland, Carl R. Maag, and Calvin H. Seaman "Results of STS-51 orbiter crew compartment contamination generation and extravehicular activity (EVA) payload bay transfer experiment", Proc. SPIE 2261, Optical System Contamination: Effects, Measurements, and Control IV, (19 October 1994); https://doi.org/10.1117/12.190131

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