Payload / Mission
Vanguard II
Type
Earth Science
Orbit
Medium Earth Orbit (MEO)
Vanguard II is an Earth orbiting satellite and the first weather satellite. It was designed to measure cloud-cover distribution over the daylight portion of its orbit for a period of 19 days and to provide information on the density of the atmosphere.
Associated launch
VanguardSuccess
Vanguard II · US Navy
Tuesday, Feb 17, 1959, 15:55 UTC
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