Thor Agena A
Thor family
· built by McDonnell Douglas
· maiden flight 1959-01-21
Profile data last updated: 2026-08-29T15:37:07.354998+00:00 | 7531-10-17
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.
Specifications
28.0 mLength
2.44 mDiameter
53 tLaunch mass
2Stages
667 kNLiftoff thrust
Payload Capacity
250 kgTo LEO
Lifetime Launch Record
As reported by Launch Library 2 across this rocket's entire history, not just the launches tracked on this site.
15Total launches
9Successful
6Failed
0Upcoming
Launches Tracked on This Site
15In our archive
60.0%Success rate
Feb 28, 1959 21:49 UTCEarliest tracked
Sep 13, 1960 22:13 UTCMost recent
| Mission | Date | Status |
|---|---|---|
| Thor Agena A | Discoverer 15 | Sep 13, 1960 22:13 UTC | Success |
| Thor Agena A | Discoverer 14 | Aug 18, 1960 19:57 UTC | Success |
| Thor Agena A | Discoverer 13 | Aug 10, 1960 20:37 UTC | Success |
| Thor Agena A | Discoverer 12 | Jun 29, 1960 22:00 UTC | Failure |
| Thor Agena A | Discoverer 11 | Apr 15, 1960 20:30 UTC | Success |
| Thor Agena A | Discoverer 10 | Feb 19, 1960 20:15 UTC | Failure |
| Thor Agena A | Discoverer 9 | Feb 04, 1960 18:51 UTC | Failure |
| Thor Agena A | Discoverer 8 | Nov 20, 1959 19:25 UTC | Success |
| Thor Agena A | Discoverer 7 | Nov 07, 1959 20:28 UTC | Success |
| Thor Agena A | Discoverer 6 | Aug 19, 1959 19:24 UTC | Success |
| Thor Agena A | Discoverer 5 | Aug 13, 1959 19:00 UTC | Success |
| Thor Agena A | Discoverer 4 | Jun 25, 1959 22:47 UTC | Failure |
| Thor Agena A | Discoverer 3 | Jun 03, 1959 20:09 UTC | Failure |
| Thor Agena A | Discoverer 2 | Apr 13, 1959 21:18 UTC | Success |
| Thor Agena A | Discoverer 1 | Feb 28, 1959 21:49 UTC | Failure |