Parade of progress
About three feet in diameter and weighing 170 pounds, Telstar had two power sources for its electronics equipment. The primary source was a solar array with 3,600 solar cells, and backup power was available from a battery system. The satellite was spin-stabilized, according to NASA, to maintain its orientation.
July 12, 2012 1:47 PM PDT
Photo by: NASA
| Caption by: Jonathan Skillings
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