Discoverer 3
Thor Agena A
United States Air Force
Launch Status
FailureMission
Discoverer 3
Type: Government/Top Secret
The Discoverer 3 reconnaissance satellite failed to reach orbit due to a failure of the Agena A upper stage.
Trajectory
The trajectory is unavailable. Check back for updates.
Location
Space Launch Complex 1W
Vandenberg SFB, CA, USA
719 rockets have launched from Vandenberg SFB, CA, USA.

Rocket
Thor Agena A – McDonnell Douglas
- Family: Thor
- Length: 28 m
- Diameter: 2.44 m
- Launch Mass: 53 T
- Low Earth Orbit Capacity: 250 kg
The Thor Agena A was manufactured by McDonnell Douglas with the first launch on 1959-01-21. Thor Agena A has 9 successful launches and 6 failed launches with a total of 15 launches. Thor-Agena was a series of orbital launch vehicles. The rockets used Thor first stages and Agena second stages. They are thus cousins of the more-famous Thor-Deltas, which founded the Delta rocket family.
Agency
United States Air Force – USAF
- Type: Government
- Abbreviation: USAF
- Country: USA