Thor Delta N6 Launch History
Every orbital and deep-space launch attempt by the Thor Delta N6, 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 N6 made 3 orbital and deep-space launch attempts between 1970 and 1971. It is part of the Thor family. Of those, 2 succeeded and 1 failed. The success rate comes to 67 percent. The busiest year was 1970, with 2 flights. The most recent flight in the catalog was in 1971.
3
Launch attempts
2
Successes
1
Failures
67%
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 N6 launched from, across every launch in the catalog.
| Site | Country | Launches | Successes | Failures |
|---|---|---|---|---|
| V | 🇺🇸United States | 3 | 2 | 1 |
Launch chronology
Every Thor Delta N6 launch in the catalog, newest first.
| Date | Designator | Payloads | Site / Pad | Outcome |
|---|---|---|---|---|
| Oct 21, 1971 | 1971-091 | 572/D086 : Improved Delta PLF, LT Thor DSV-2L-1C 572, Castor 2 +4 more, [For UN reg bookkeeping], deb Delta 86, DSV-3E-3 86, ITOS B | V / SLC2E | Failure |
| Dec 11, 1970 | 1970-106 | 546/D081 : Improved Delta PLF, LT Thor DSV-2L-1C 546, Castor 2 +5 more, Castor 1, DSV-3E-3 81, [UNID072] RCS 0.01, CEP, ITOS A | V / SLC2W | Success |
| Jan 23, 1970 | 1970-008 | 542/D076 : Improved Delta PLF, LT Thor DSV-2L-1C 542, Castor 2 +4 more, Castor 1, DSV-3E-3 76, Australis, Tiros M | V / SLC2W | Success |