Failed Soyuz-U attempt from Baikonur Site 31/6 to orbit a Zenit-4MKM (Gerakl) high-resolution film-return photoreconnaissance satellite (would have been Kosmos 937); the vehicle failed and the payload did not reach orbit.
- Outcome
- Failure
- Orbit
- LEO
- Low Earth orbit
- Payload to orbit
- Did not reach orbit
- Flight
- 72nd
- of 714 Soyuz U flights
- Date and time
- 10 August 1977, 10:40 UTC
- Rocket
- Soyuz U
- Builder
- Progress RSC
- Launch site
- 31/6, Baikonur Cosmodrome, Republic of Kazakhstan
- Payload
- Government/Top Secret
- Launches in 1977
- 77th of 130