Transmitter off on Viking Orbiter 1
Article first published online: 3 JUN 2011
©1980. American Geophysical Union. All Rights Reserved.
Eos, Transactions American Geophysical Union
Volume 61, Issue 38, page 627, 16 September 1980
How to Cite
1980), Transmitter off on Viking Orbiter 1, Eos Trans. AGU, 61(38), 627–627, doi:10.1029/EO061i038p00627-01.(
- Issue published online: 3 JUN 2011
- Article first published online: 3 JUN 2011
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On Thursday, August 7, engineers at the Jet Propulsion Laboratory in Pasadena, California, sent a radio command to NASA's Viking Orbiter 1 that switched off its transmitter and ended the spacecraft's 4-year mission in orbit around Mars.
Kermit Watkins, Viking project manager, said the orbiter was shut down because its attitude control gas was expected to be depleted before it completed its next orbit of Mars. ‘By sending the turn-off command,’ Watkins said, ‘instead of allowing it to occur automatically on the spacecraft, we will be sure that the radio transmitter has been shut off.’