Thor-Delta
Thor family
· built by United States Air Force
· maiden flight 1960-05-13
Profile data last updated: 2026-08-29T15:37:07.354998+00:00 | 7531-10-17
The Delta DM-19, or Thor-Delta was an early launch system used for 12 launches in the early '60s in the US. The first stage was a Thor missile with the second stage being the Delta, hence the name Thor-Delta. Of 12 flights, it failed only once and put 11 satellites into orbit between 1960 and 62.
Specifications
18.42 mLength
2.44 mDiameter
54 tLaunch mass
3Stages
759 kNLiftoff thrust
Payload Capacity
No payload capacity figures published for this configuration.
Lifetime Launch Record
As reported by Launch Library 2 across this rocket's entire history, not just the launches tracked on this site.
3Total launches
3Successful
0Failed
0Upcoming
Launches Tracked on This Site
3In our archive
100.0%Success rate
Mar 25, 1961 15:17 UTCEarliest tracked
Aug 16, 1961 03:21 UTCMost recent
| Mission | Date | Status |
|---|---|---|
| Delta DM-19 | Explorer 12 | Aug 16, 1961 03:21 UTC | Success |
| Delta DM-19 | Tiros-3 | Jul 12, 1961 10:25 UTC | Success |
| Delta DM-19 | Explorer 10 | Mar 25, 1961 15:17 UTC | Success |