Thor Agena D – McDonnell Douglas

• Family: Thor
• Length: 31 m
• Diameter: 2.44 m
• Launch Mass: 56 T

The Thor Agena D, manufactured by McDonnell Douglas established in unknown year, undertook its inaugural launch on 06/28/1962. Notably, Thor Agena D has 11 successful launches and 2 failed attempts, with a cumulative tally of 13 launches, currently with 0 pending launches in the pipeline.

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.