DS-P1-Yu No.23, a Soviet radar-calibration target intended for air-defense and space-surveillance testing, launched on a Kosmos-2 (11K63) from Plesetsk; second-stage failure at T+267 s prevented orbit and no Kosmos designation was assigned.
- Outcome
- Failure
- Orbit
- LEO
- Low Earth orbit
- Payload to orbit
- Did not reach orbit
- Flight
- 43rd
- of 126 Kosmos 11K63 flights
- Date and time
- 23 July 1969, 09:00 UTC
- Rocket
- Kosmos 11K63
- Builder
- Yuzhmash
- Launch site
- 133/3 (133L), Plesetsk Cosmodrome, Russian Federation
- Payload
- Test Target
- Launches in 1969
- 73rd of 125