Failed DS-P1-Yu Soviet radar-calibration target satellite. Kosmos-2 (11K63) from Plesetsk Site 133/1 on 3 August 1971 suffered a second-stage malfunction about 204 seconds after liftoff and failed to reach orbit.
- Outcome
- Failure
- Orbit
- LEO
- Low Earth orbit
- Payload to orbit
- Did not reach orbit
- Flight
- 78th
- of 126 Kosmos 11K63 flights
- Date and time
- 3 August 1971, 11:00 UTC
- Rocket
- Kosmos 11K63
- Builder
- Yuzhmash
- Launch site
- 133/3 (133L), Plesetsk Cosmodrome, Russian Federation
- Payload
- Test Target
- Launches in 1971
- 73rd of 133