NASA NTRS · 20170005402
International Space Station Major Constituent Analyzer On-Orbit Performance
Abstract
The 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.
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Gardner, Ben D., Erwin, Phillip M., Cougar, Tamara, Ulrich, BettyLynn. 2017-07-16. International Space Station Major Constituent Analyzer On-Orbit Performance. https://ntrs.nasa.gov/citations/20170005402
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