![]() ![]() ![]() In the early 1970s, building such an instrument as even a lab model required experts who could keep up with the latest developments in the field, since the science was changing on an almost-daily basis. Conducting gas chromatography and mass spectrometry in the laboratory was hard enough. The GCMS was actually two instrumentsa gas chromatograph and a mass spectrometerin one. Viking had been in development formally for nearly three years when Martin, the project manager, determined that the configuration and schedule of the gas chromatograph-mass spectrometer (GCMS), one of the spacecraft’s key scientific instruments, belonged on the project’s short list of critical problems. ![]() On October 26, 1971, Jim Martin of NASA’s Langley Research Center added a new entry to his “Top Ten Problems” list for the Viking project, the first mission ever to attempt a soft landing on the surface of Mars. A gas chromatograph uses a thin capillary fiber known as a column to separate different types of molecules, based on their chemical properties. The Viking Gas Chromatograph Mass Spectrometer. NPR 7120.5 Revision F Rollout Briefing (NASA Only). ![]() Lessons Learned Lifecycle and Highlights.Systems and Engineering Leadership Program (SELP). ![]()
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