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Thor DM-21 Ablestar

Thor familyUnited States Air ForceRetired

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.

Thor DM-21 Ablestar vehicle

Specifications

Thrust
760 kN
Height
29 m
Diameter
1.44 m
Launch mass
51 t
Stages
2
LEO capacity
150 kg

Specifications from Launch Library. Figures the operator has not published are omitted.

Flight record

19flightswith a definitive outcome
68.4%success rate13 of 19
5success streakcurrent

Counted from padside's own launch record, the same basis as the stats page.

Flights

5 of 19

All 19 flights