Thor Delta M Launch History
Every orbital and deep-space launch attempt by the Thor Delta M, year by year, drawn from the GCAT launch catalog. It is one of the variants covered on the Thor family page.
Data current as of 2026-07-20.
Thor Delta M made 12 orbital and deep-space launch attempts between 1968 and 1971. It is part of the Thor family. Of those, 10 succeeded and 2 failed. The success rate comes to 83 percent. The busiest year was 1970, with 5 flights. The most recent flight in the catalog was in 1971.
12
Launch attempts
10
Successes
2
Failures
83%
Success rate
Launches per year
Successes
Failures
Each bar links to that year's full chronology.
Year by year
Launch sites used
Sites the Thor Delta M launched from, across every launch in the catalog.
| Site | Country | Launches | Successes | Failures |
|---|---|---|---|---|
| CC | 🇺🇸United States | 12 | 10 | 2 |
Launch chronology
Every Thor Delta M launch in the catalog, newest first.
| Date | Designator | Payloads | Site / Pad | Outcome |
|---|---|---|---|---|
| Feb 3, 1971 | 1971-009 | 560/D082 : DSV-3E-3 82, Improved Delta PLF, LT Thor DSV-2L-1B 560 +6 more, Castor 2, Star 17A, Spurious, Star 37D yo weight, Star 37D S/N 022, NATOSAT-II | CC / LC17A | Success |
| Aug 19, 1970 | 1970-062 | 561/D080 : DSV-3E-3 80, Improved Delta PLF, LT Thor DSV-2L-1B 561 +4 more, Castor 2, Star 17A, Star 37D S/N 018, Skynet IB | CC / LC17A | Success |
| Jul 23, 1970 | 1970-055 | 563/D079 : DSV-3E-3 79, Improved Delta PLF, LT Thor DSV-2L-1B 563 +4 more, Castor 2, SVM-2 S/N D-24, Star 37D S/N 019, INTELSAT III F-8 | CC / LC17A | Success |
| Apr 23, 1970 | 1970-032 | 559/D078 : INTELSAT III F-7, DSV-3E-3 78, Improved Delta PLF +4 more, LT Thor DSV-2L-1B 559, Castor 2, SVM-2, Star 37D S/N 014 | CC / LC17A | Success |
| Mar 20, 1970 | 1970-021 | 558/D077 : DSV-3E-3 77, Improved Delta PLF, LT Thor DSV-2L-1B 558 +5 more, Castor 2, Star 17A, Star 37D yo weight, Star 37D S/N 015, NATOSAT-I | CC / LC17A | Success |
| Jan 15, 1970 | 1970-003 | 557/D075 : DSV-3E-3 75, Improved Delta PLF, LT Thor DSV-2L-1B 557 +4 more, Castor 2, SVM-2, Star 37D S/N 016, INTELSAT III F-6 | CC / LC17A | Success |
| Nov 22, 1969 | 1969-101 | 554/D074 : DSV-3E-3 74, Improved Delta PLF, LT Thor DSV-2L-1B 554 +4 more, Castor 2, Star 17A, Star 37D S/N 017, Skynet IA | CC / LC17A | Success |
| Jul 26, 1969 | 1969-064 | 547/D071 : DSV-3E-3 71, Improved Delta PLF, LT Thor DSV-2L-1B 547 +8 more, Castor 2, deb Star 37D (1971-00D), deb Star 37D, SVM-2, Star 37D part, Star 37D S/N 008, Star 37D major piece, INTELSAT III F-5 | CC / LC17A | Failure |
| May 22, 1969 | 1969-045 | 533/D068 : DSV-3E-3 S/N 20233, Improved Delta PLF, LT Thor DSV-2L-1B 533 +4 more, Castor 2, SVM-2, Star 37D S/N 013, INTELSAT III F-4 | CC / LC17A | Success |
| Feb 6, 1969 | 1969-011 | 530/D066 : Improved Delta PLF, LT Thor DSV-2L-1B 530, Castor 2 +5 more, SVM-2, Star 37D yo weight, DSV-3E-3 S/N 20229, Star 37D S/N 012, INTELSAT III F-3 | CC / LC17A | Success |
| Dec 19, 1968 | 1968-116 | 536/D063 : Improved Delta PLF, LT Thor DSV-2L-1B 536, Castor 2 +5 more, SVM-2, Star 37D yo weight, DSV-3E-3 S/N 20230, Star 37D S/N 011, INTELSAT III F-2 | CC / LC17A | Success |
| Sep 19, 1968 | 1968-F08 | 529/D059 : DSV-3E-3 S/N 20228, Improved Delta PLF, LT Thor DSV-2L-1B 529 +4 more, Castor 2, SVM-2, Star 37D S/N 007, INTELSAT III F-1 | CC / LC17A | Failure |