Transit 3A
Thor DM-21 Ablestar
United States Air Force
Launch Status
FailureMission
Transit 3A
Type: Navigation
Transit 3A was a US Navy navigation satellite that was destroyed by range safety when the launch vehicle shut down too early.
Trajectory
The trajectory is unavailable. Check back for updates.
Location
Space Launch Complex 17B
Cape Canaveral, FL, USA
877 rockets have launched from Cape Canaveral, FL, 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