Mar 17 1977
From The Space Library
A short-circuit in the power supply of Viking 1's gaschromatograph mass spectrometer (GSMS) had forced controllers at JPL to turn off the instrument Mar. 12, NASA reported. JPL received confirmation of the command from the Viking system Mar. 14. NASA had shut down the GCMS, which had analyzed the composition of Martian atmosphere and soil early in the mission, to avoid damage to other instruments such as the onboard computer and communications system. (NASA Release 77-51)
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