DS-K-40 No.1, a Yuzhnoye experimental ELINT satellite testing Kust-40 SIGINT gear for the future Tselina-O program. Kosmos-2I 63S1 from Kapustin Yar LC-86/1 failed on 28 December 1965 when the first stage malfunctioned and the payload never reached orbit.
- Outcome
- Failure
- Orbit
- LEO
- Low Earth orbit
- Payload to orbit
- Did not reach orbit
- Flight
- 33rd
- of 38 Kosmos-2I flights
- Date and time
- 28 December 1965, 08:10 UTC
- Rocket
- Kosmos-2I
- Builder
- Yuzhmash
- Launch site
- 86/1, Kapustin Yar, Russian Federation
- Payload
- Government/Top Secret
- Launches in 1965
- 123rd of 124