Payload / Mission
Vanguard III
Type
Earth Science
Orbit
Medium Earth Orbit (MEO)
Vanguard 3 is a scientific satellite to measure the Earth's magnetic field, solar X-ray radiation and its effects on the Earth's atmosphere and the near-Earth micrometeoroid environment.
Associated launch
VanguardSuccess
Vanguard III · US Navy
Friday, Sep 18, 1959, 05:20 UTC
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