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📊 Analysis

Statistics & insights on rockets and organizations — technology, history, numbers.

Thor DM-21 Agena-B

Retired

United States Air Force

Thor-Agena was a series of orbital launch vehicles.

Key figures

Total launches
40
Successes
32
Failures
8
Success rate
80.0 %
Success streak
18
Maiden flight
Oct 26, 1960
Reusable
No
Shortest launch interval ⓘ
1d 2h
Planned launches
0
Thor, Thor-Agena family total
142 launches · 120 successes · 22 failures (7 variants)

🧐 Data check

Automatic plausibility checks — anomalies are surfaced transparently here:

  • ℹ️The figures above apply only to the “Thor DM-21 Agena-B” variant. The Launch Library counts each variant separately — the Thor, Thor-Agena family totals 142 launches across 7 variants.

Technology

Launches per year

of which in our database: 40

1960: 3 Successes1960: 1 Failures419601961: 11 Successes1961: 6 Failures1719611962: 17 Successes1962: 1 Failures1819621963: 1 Successes11963
Successes Failures Other/planned

History & events

  1. Oct 26, 1960🚀 Maiden flightDiscoverer 16View launch →
  2. Oct 26, 1960💥 FailureDiscoverer 16View launch →
  3. Mar 30, 1961💥 FailureDiscoverer 22View launch →
  4. Jun 8, 1961💥 FailureKH-5 3View launch →
  5. Jul 21, 1961💥 FailureKH-5 4View launch →
  6. Aug 4, 1961💥 FailureDiscoverer 28View launch →
  7. Oct 23, 1961💥 FailureDiscoverer 33View launch →
  8. Nov 5, 1961💥 FailureDiscoverer 34View launch →
  9. Jan 13, 1962💥 FailureDiscoverer 37View launch →

Sources