Thor Delta B Launch History
Every orbital and deep-space launch attempt by the Thor Delta B, 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 B made 9 orbital and deep-space launch attempts between 1962 and 1964. It is part of the Thor family. Of those, 8 succeeded and 1 failed. The success rate comes to 89 percent. The busiest year was 1963, with 6 flights. The most recent flight in the catalog was in 1964.
9
Launch attempts
8
Successes
1
Failures
89%
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 B launched from, across every launch in the catalog.
| Site | Country | Launches | Successes | Failures |
|---|---|---|---|---|
| CC | 🇺🇸United States | 9 | 8 | 1 |
Launch chronology
Every Thor Delta B launch in the catalog, newest first.
| Date | Designator | Payloads | Site / Pad | Outcome |
|---|---|---|---|---|
| Mar 19, 1964 | 1964-F02 | 391/D024 : AJ10-118D S/N 20102, Fairing, Thor DM-21 391 +3 more, BE-A despin weight, Altair X-248-A5DM, NASA S-66 | CC / LC17A | Failure |
| Jan 21, 1964 | 1964-003 | 373/D023 : AJ10-118D S/N 20008, Fairing, Thor DM-21 373 +2 more, Altair X-248-A5DM, Relay B | CC / LC17B | Success |
| Dec 21, 1963 | 1963-054 | 371/D022 : AJ10-118D S/N 20007, Fairing, Thor DM-21 371 +4 more, deb Tiros 8, Tiros VIII despin weight, Altair X-248-A5DM, Tiros H | CC / LC17B | Success |
| Jul 26, 1963 | 1963-031 | 370/D020 : AJ10-118A S/N 20006, Fairing, Thor DM-21 370 +3 more, JPL SR-12-1, Altair X-248-A5DM, HS-301 Syncom B | CC / LC17A | Success |
| Jun 19, 1963 | 1963-024 | 359/D019 : AJ10-118A S/N 20004, Fairing, Thor DM-21 359 +3 more, Tiros VII despin weight, Altair X-248-A5DM SV-355, Tiros G | CC / LC17B | Success |
| May 7, 1963 | 1963-013 | 366/D018 : AJ10-118A S/N 20005, Fairing, Thor DM-21 366 +2 more, Altair X-248-A5DM, Telstar 2 | CC / LC17B | Success |
| Apr 3, 1963 | 1963-009 | 357/D017 : AJ10-118A S/N 20002, Fairing, Thor DM-21 357 +2 more, Altair X-248-A5DM SU-338, AE-A | CC / LC17A | Success |
| Feb 14, 1963 | 1963-004 | 358/D016 : Syncom 1, AJ10-118A S/N 20003, Fairing +4 more, Thor DM-21 358, TE-M-375, Altair X-248-A5DM SV-330, HS-301 Syncom A | CC / LC17B | Success |
| Dec 13, 1962 | 1962 B UPS | 355/D015 : AJ10-118A S/N 20001, Fairing, Thor DM-21 355 +2 more, Altair X-248-A5DM SV-22, Relay A | CC / LC17A | Success |