Category. Statistic.
Launch vehicle. Thor Able Star rocket.
Launch date. June 29, 1961.
Launch site. Vandenberg Air Force Base.
Ceased operations. 1977 or 1979 along with several others.
Owner(s). USAF\NRL.
Major contractor(s). USAF\NRL?
Is it still in orbit. N\A, but probably still is.
Launch mass 25 kilograms.
Nationality(s). USA.
Satellite type. ELINT surveillance work and ionosphere X-ray measurements.
Links., and

Solrad-3 (or GREB-3), was the third GRAB satellite, part of a 3 satellite an American ELINT spy satellite system.

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