- 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.
