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Thor Burner 2A Launch History

Every orbital and deep-space launch attempt by the Thor Burner 2A, 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 Burner 2A made 8 orbital and deep-space launch attempts between 1971 and 1976. It is part of the Thor family. All 8 flights succeeded. The busiest year was 1972, with 2 flights. The most recent flight in the catalog was in 1976.

8
Launch attempts
8
Successes
0
Failures
100%
Success rate

Launches per year

1 2 1971: 1 launch (1 success, 0 failures) 1972: 2 launches (2 successes, 0 failures) 1973: 1 launch (1 success, 0 failures) 1974: 2 launches (2 successes, 0 failures) 1975: 1 launch (1 success, 0 failures) 1976: 1 launch (1 success, 0 failures) 1971 1972 1973 1974 1975 1976
Successes Failures Each bar links to that year's full chronology.

Year by year

Year Attempts Successes Failures Success rate
1976 1 1 0 100%
1975 1 1 0 100%
1974 2 2 0 100%
1973 1 1 0 100%
1972 2 2 0 100%
1971 1 1 0 100%

Launch sites used

Sites the Thor Burner 2A launched from, across every launch in the catalog.

Site Country Launches Successes Failures
V 🇺🇸United States 8 8 0

Launch chronology

Every Thor Burner 2A launch in the catalog, newest first.

Date Designator Payloads Site / Pad Outcome
Feb 19, 1976 1976-016 182/BIIA-25 : Burner 2A Fairing, Star 37B, Thor DM-18A 182
+2 more , Star 26B S/N 009, DMSP Block 5C F-3
V / SLC10W Success
May 24, 1975 1975-043 197/BIIA-24 : Burner 2A Fairing, Star 37B, Thor DM-18A 197
+2 more , Star 26B S/N 008, DMSP Block 5C F-2
V / SLC10W Success
Aug 9, 1974 1974-063 275/BIIA-22 : Burner 2A Fairing, Star 37B, Thor DM-18A 275
+2 more , Star 26B S/N 007, DMSP Block 5C F-1
V / SLC10W Success
Mar 16, 1974 1974-015 207/BIIA-19 : Burner 2A Fairing, Star 37B, Thor DM-18A 207
+3 more , Burner 2A collision debris, Star 26B S/N 006, DMSP Block 5B F-5
V / SLC10W Success
Aug 17, 1973 1973-054 291/BIIA-21 : Star 37B, Burner 2A Fairing, Thor DM-18A 291
+2 more , Star 26B S/N 004, DMSP Block 5B F-4
V / SLC10W Success
Nov 9, 1972 1972-089 294/BIIA-16 : Star 37B, Burner 2A Fairing, Thor DM-18A 294
+2 more , Star 26B S/N 003, DMSP Block 5B F-3
V / SLC10W Success
Mar 24, 1972 1972-018 153/BIIA-15 : Burner 2A Fairing, Star 37B, Thor DM-18A 153
+2 more , Star 26B S/N 005, DMSP Block 5B F-2
V / SLC10W Success
Oct 14, 1971 1971-087 159/BIIA-10 : Star 37B S/N 010, Burner 2A Fairing, Thor DM-18A 159
+2 more , Star 26B S/N 001 (SV-1), DMSP Block 5B F-1
V / SLC10W Success
← Thor family All years