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Transit-O 4

Thor DM-21 Ablestar

United States Air Force

Launch Status
Success

Mission

Transit-O 4

Type: Navigation

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.

Trajectory

The trajectory is unavailable. Check back for updates.

Location

Space Launch Complex 2E

Vandenberg SFB, CA, USA

713 rockets have launched from Vandenberg SFB, CA, USA.

Space Launch Complex 2E, Vandenberg SFB, CA, USA

Rocket

Thor DM-21 Ablestar – United States Air Force

  • Family: Thor-Ablestar
  • Length: 29 m
  • Diameter: 1.44 m
  • Launch Mass: 51 T
  • Low Earth Orbit Capacity: 150 kg

The Thor DM-21 Ablestar was manufactured by United States Air Force with the first launch on 1960-04-13. Thor DM-21 Ablestar has 13 successful launches and 6 failed launches with a total of 19 launches. 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.

Agency

United States Air Force – USAF

  • Type: Government
  • Abbreviation: USAF
  • Country: USA
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