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VERSION:2.0
PRODID:-//Padside//Padside//EN
X-WR-CALNAME:Padside
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UID:launch-b4158c69-88e9-4bfa-927f-c3489cf48eda@padside
DTSTAMP:20261016T115249Z
DTSTART;VALUE=DATE:19600513
SUMMARY:Thor Delta | Echo
DESCRIPTION:The Echo 1 spacecraft was a 30.48 m diameter balloon of mylar p
 olyester film 0.0127 mm thick. The spacecraft was designed as a passive co
 mmunications reflector for transcontinental and intercontinental telephone
  (voice)\, radio\, and television signals. It had 107.9 MHz beacon transmi
 tters for telemetry purposes. These transmitters were powered by five nick
 el-cadmium batteries that were charged by 70 solar cells mounted on the ba
 lloon. Because of the large area-to-mass ratio of the spacecraft\, dat
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