Thor Delta A
Thor family
· built by McDonnell Douglas
· maiden flight 1962-10-02
Profile data last updated: 2026-08-29T15:37:07.354998+00:00 | 7531-10-17
American orbital launch vehicle family with Thor first stage and a delta second stage.
Specifications
31.0 mLength
2.44 mDiameter
50 tLaunch mass
3Stages
667 kNLiftoff thrust
Payload Capacity
250 kgTo LEO
68 kgTo GTO
Lifetime Launch Record
As reported by Launch Library 2 across this rocket's entire history, not just the launches tracked on this site.
2Total launches
2Successful
0Failed
0Upcoming
Launches Tracked on This Site
2In our archive
100.0%Success rate
Oct 02, 1962 22:11 UTCEarliest tracked
Oct 27, 1962 23:15 UTCMost recent
| Mission | Date | Status |
|---|---|---|
| Thor Delta A | Explorer 15 | Oct 27, 1962 23:15 UTC | Success |
| Thor Delta A | Explorer 14 | Oct 02, 1962 22:11 UTC | Success |