Soyuz-U from Baikonur Site 31/6 failed to orbit a Yantar-2K (Feniks) high-resolution film-return photoreconnaissance satellite (intended Kosmos 1261); the launch vehicle did not place the payload in LEO.
- Outcome
- Failure
- Orbit
- LEO
- Low Earth orbit
- Payload to orbit
- Did not reach orbit
- Flight
- 234th
- of 714 Soyuz U flights
- Date and time
- 28 March 1981, 09:30 UTC
- Rocket
- Soyuz U
- Builder
- Progress RSC
- Launch site
- 31/6, Baikonur Cosmodrome, Republic of Kazakhstan
- Payload
- Government/Top Secret
- Launches in 1981
- 32nd of 126