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Slice of History: Mariner Mars 1964 Solar Panel Test

30 Sep 2014, 15:31 UTC
Slice of History: Mariner Mars 1964 Solar Panel Test
(200 words excerpt, click title or image to see full post)

By Julie Cooper
Each month in “Slice of History” we feature a historical photo from the JPL Archives. See more historical photos and explore the JPL Archives at https://beacon.jpl.nasa.gov/.

Mariner Mars 1964 Solar Panel Test — Photograph Number 293-6725Bc
“Most space projects live nine lives on the test bench before they are allowed one life in flight.”* The Mariner Mars mission was on a tight schedule in 1964, so testing was not quite as extensive as it was for other missions. A full-size temperature-control model and a proof-test model went through a series of environmental and vibration tests in the 25-foot space simulator at NASA’s Jet Propulsion Laboratory and other test facilities. This photo was taken in June 1964, outside of the Spacecraft Assembly Facility at JPL. In this unusual outdoor setting, the solar panel test took place in a large plastic tent.
After testing was completed, two spacecraft and a spare (the proof-test model) were partly disassembled, carefully packed and loaded on moving vans for a trip to the Air Force Eastern Test Range in Cape Kennedy, Florida. They were inspected, reassembled, and tested again before launch.
*To Mars: the Odyssey of Mariner IV, TM33-229, 1965.
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