Thor Delta E
Thor family
· built by McDonnell Douglas
· maiden flight 1965-11-06
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
69 tLaunch mass
3Stages
1452 kNLiftoff thrust
Payload Capacity
540 kgTo LEO
150 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.
6Total launches
6Successful
0Failed
0Upcoming
Launches Tracked on This Site
6In our archive
100.0%Success rate
Nov 06, 1965 18:38 UTCEarliest tracked
Apr 20, 1967 11:21 UTCMost recent
| Mission | Date | Status |
|---|---|---|
| Thor Delta E | ESSA 5 | Apr 20, 1967 11:21 UTC | Success |
| Thor Delta E | ESSA 4 | Jan 26, 1967 17:31 UTC | Success |
| Thor Delta E | ESSA 3 | Oct 02, 1966 10:39 UTC | Success |
| Thor Delta E | ESSA 2 | Feb 28, 1966 13:58 UTC | Success |
| Thor Delta E | Pioneer 6 | Dec 16, 1965 07:31 UTC | Success |
| Thor Delta E | GEOS A | Nov 06, 1965 18:38 UTC | Success |