This page records Thor DM-21 Ablestar | Transit-O 3 and its reported outcome: Launch Successful. The date above is a historical record.
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Status reported by the mission data provider.
The Transit-O series of satellites that closely followed the design of Transit 5C-1 were also called “Oscars” (Oscar is the phonetic alphabet for “O”, i. e., operational). They were also called NNS (Navy Navigation Satellite) or shortened NavSat.
Published configuration and flight history.
The Thor-Ablestar, or Thor Able-Star, also known as Thor-Epsilon was an early American expendable launch system consisting of a PGM-17 Thor missile, with an Ablestar upper stage. It was a member of the Thor family of rockets, and was derived from the Thor-Able.
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Vandenberg SFB, CA, USA
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