Failed Voskhod launch from Plesetsk LC-43/4 of a Zenit-2M medium-resolution film-return photoreconnaissance satellite with Nauka 2KS piggyback (would-be Kosmos 400). The rocket failed to orbit the optical imaging payload on 5 March 1971.
- Outcome
- Failure
- Orbit
- LEO
- Low Earth orbit
- Payload to orbit
- Did not reach orbit
- Flight
- 148th
- of 299 Voskhod flights
- Date and time
- 5 March 1971, 01:02 UTC
- Rocket
- Voskhod
- Builder
- RKK Energia
- Launch site
- 43/4 (43R), Plesetsk Cosmodrome, Russian Federation
- Payload
- Test Target
- Launches in 1971
- 20th of 133