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VERSION:2.0
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UID:launch-a622451e-1533-40ec-ae1f-6ac82a8e15eb@padside
DTSTAMP:20260802T235012Z
DTSTART;VALUE=DATE:19600812
SUMMARY:Thor Delta | Echo 1
DESCRIPTION:The Echo 1A spacecraft was a 30.48 m diameter balloon of mylar
  polyester film 0.0127 mm thick. The spacecraft was designed as a passive
  communications reflector for transcontinental and intercontinental telep
 hone (voice)\, radio\, and television signals. It had 107.9 MHz beacon tr
 ansmitters for telemetry purposes. These transmitters were powered by fiv
 e nickel-cadmium batteries that were charged by 70 solar cells mounted on
  the balloon. Because of the large area-to-mass ratio of the spacecraft\,
  da
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