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OSS-1/contamination monitorA 20-cm high, 18-cm wide, and 30-cm long (8x7x12 inch) box weighing about 7 kg (15 lbs) and consuming about 7 watts of power was carried on the OSS-1 pallet to monitor the mass build-up or accretion of condensible, volatile materials on surfaces in the shuttle bay during all phases of ascent, on-orbit, and descent. Passively thermally controlled, the box holds two witness samples and four actively temperature controlled quartz crystal microbalances (TQCM) whose temperature can vary from -60 C to +80 C. Graphs show the accretion indicated by the TQCM during the launch and early orbital phase. Conditions during tail to the Sun, nose to the Sun, and bay to the Sun attitudes of the shuttle during STS-3 are reflected in temperatures indicated by the OSS-1 thermistor. These temperatures influence outgassing rates of various materials as well as measurements made by the contamination monitor package. The parameters that bear on TQCM measurements data are shown in graphs and discussed.
Document ID
19830014033
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Kruger, R. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Triolo, J. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Mcintosh, R. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 11, 2013
Publication Date
February 1, 1983
Publication Information
Publication: Systematics General Corp. The Shuttle Environ. Workshop
Subject Category
Spacecraft Instrumentation
Accession Number
83N22304
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle19830014018Collected WorksThe Shuttle Environment Workshop
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