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📊 Analysis

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

Kosmos-2I

Retired

Strategic Rocket Forces

Kosmos-2I is the designation applied to two Soviet carrier rockets which were used to orbit satellites between 1961 and 1977.

Key figures

Total launches
38
Successes
26
Failures
12
Success rate
68.4 %
Success streak
3
Maiden flight
Oct 27, 1961
Reusable
No
Shortest launch interval ⓘ
5d 3h
Planned launches
0
Kosmos family total
621 launches · 576 successes · 45 failures (5 variants)

🧐 Data check

Automatic plausibility checks — anomalies are surfaced transparently here:

  • ℹ️The figures above apply only to the “Kosmos-2I” variant. The Launch Library counts each variant separately — the Kosmos family totals 621 launches across 5 variants.

Technology

Length
31 m
Diameter
1.6 m
Launch mass
48 t
Stages
2
LEO (low Earth orbit)
300 kg

Launches per year

of which in our database: 38

1961: 2 Failures219611962: 7 Successes1962: 1 Failures819621963: 4 Successes1963: 4 Failures819631964: 7 Successes1964: 1 Failures819641965: 4 Successes1965: 3 Failures719651966: 3 Successes1966: 1 Failures419661967: 1 Successes11967
Successes Failures Other/planned

History & events

  1. Oct 27, 1961🚀 Maiden flightKosmos-2I | DS-1-1View launch →
  2. Oct 25, 1962💥 Failure1MS 2View launch →
  3. Apr 6, 1963💥 FailureDS-P1 2View launch →
  4. Jun 1, 1963💥 FailureDS-MT 1View launch →
  5. Aug 22, 1963💥 FailureDS-A1 3View launch →
  6. Oct 24, 1963💥 FailureDS-A1 4View launch →
  7. Dec 1, 1964💥 FailureDS-2 2View launch →
  8. Feb 12, 1965💥 FailureDS-P1-Yu 2View launch →
  9. Feb 20, 1965💥 FailureDS-A1 6View launch →
  10. Dec 28, 1965💥 FailureDS-K-40 1View launch →
  11. Feb 21, 1966💥 FailureDS-K-40 2View launch →

Sources