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.
Specifications
- Thrust
- 760 kN
- Height
- 29 m
- Diameter
- 1.44 m
- Launch mass
- 51 t
- Stages
- 2
- Launch cost
- —
- LEO capacity
- 150 kg
- GTO capacity
- —
- GEO capacity
- —
- SSO capacity
- —
Vehicle specifications from Launch Library; blanks are unpublished figures.
Flight record
Flights
19
Launches with a definitive outcome
Success rate
68.4%
13 of 19
Current success streak
5
Landings
0
0 attempts · 0 droneship / 0 RTLS
Fastest turnaround
—
Between consecutive booster flights
Counted from padside's own launch record — the same basis as the Stats page.
Launches
- Thor DM-21 Ablestar | Transit-O 5 — Success
- Thor DM-21 Ablestar | Transit-O 4 — Success
- Thor DM-21 Ablestar | Transit-O 3 — Success
- Thor DM-21 Ablestar | Transit-O 2 & 5E-5 — Success
- Thor DM-21 Ablestar | Transit-O 1 — Success