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International Space Station Major Constituent Analyzer On-Orbit PerformanceThe Major Constituent Analyzer (MCA) is a mass spectrometer based system that measures the major atmospheric constituents on the International Space Station. A number of limited-life components require periodic change-out, including the ORU 02 analyzer and the ORU 08 Verification Gas Assembly. The most recent ORU 02 and ORU 08 assemblies in the LAB MCA are operating nominally. For ORU 02, the ion source filaments and ion pump lifetime continue to be key determinants of MCA performance. Finally, the Node 3 MCA is being brought to an operational configuration.
Document ID
20170005402
Acquisition Source
Johnson Space Center
Document Type
Conference Paper
Authors
Gardner, Ben D. (UTC Aerospace Systems Charlotte, NC, United States)
Erwin, Phillip M. (UTC Aerospace Systems Charlotte, NC, United States)
Cougar, Tamara (Boeing Co. Pasadena, TX, United States)
Ulrich, BettyLynn (NASA Johnson Space Center Houston, TX, United States)
Date Acquired
June 8, 2017
Publication Date
July 16, 2017
Subject Category
Spacecraft Instrumentation And Astrionics
Man/System Technology And Life Support
Report/Patent Number
JSC-CN-39752
ICES-2017-17
Report Number: JSC-CN-39752
Report Number: ICES-2017-17
Meeting Information
Meeting: International Conference on Environmental Systems (ICES 2017)
Location: Charleston, SC
Country: United States
Start Date: July 16, 2017
End Date: July 20, 2017
Sponsors: International Conference On Environmental Systems, Inc.
Distribution Limits
Public
Copyright
Public Use Permitted.

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