Failed Zenit-4M (Rotor #21) Soviet high-resolution film-return photoreconnaissance satellite. Voskhod (11A57) from Baikonur Site 31/6 on 19 August 1971 failed to achieve orbit.
- Outcome
- Failure
- Orbit
- LEO
- Low Earth orbit
- Payload to orbit
- Did not reach orbit
- Flight
- 162nd
- of 299 Voskhod flights
- Date and time
- 19 August 1971, 06:30 UTC
- Rocket
- Voskhod
- Builder
- RKK Energia
- Launch site
- 31/6, Baikonur Cosmodrome, Republic of Kazakhstan
- Payload
- Government/Top Secret
- Launches in 1971
- 80th of 133