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Launch SuccessfulUnited States Air Force
Thor DM-21 Ablestar: Transit-O 3
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.
Thursday, 11 March 1965
Mission Data
🇺🇸United States Air ForceEst. 1947
Launch VehicleThor DM-21 Ablestar
Vehicle FamilyThor
Vehicle Record13 of 19 launches (68.4%)
Provider TypeGovernment
Agency Record972 successes / 106 failures (90%)
Success Streak68 consecutive
Mission TypeNavigation
Target OrbitPolar Orbit
Launch PadSpace Launch Complex 2E
Location🇺🇸 Vandenberg SFB, CA, USA USA
Orbital Launches This Year#21
Agency Launches This Year#13
Launches From This Pad47
Launches From This Site923
Status Note
The launch vehicle successfully inserted its payload(s) into the target orbit(s).
About Thor DM-21 Ablestar
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.
Launch Site
Space Launch Complex 2E · 34.7516°N 120.6192°W
Launch data from Launch Library 2 by The Space Devs.