Meridian-5 military communications satellite lost when the Soyuz-2.1b's third-stage engine suffered a breach 421 seconds into flight from Plesetsk. The satellite was to have provided Molniya-orbit relay for the Russian armed forces.
- Outcome
- Failure
- Payload to orbit
- Did not reach orbit
- Flight
- 6th
- of 26 Soyuz 2.1b Fregat flights
- Date and time
- 23 December 2011, 12:08 UTC
- Rocket
- Soyuz 2.1b Fregat
- Builder
- Progress RSC
- Launch site
- 43/4 (43R), Plesetsk Cosmodrome, Russian Federation
- Payload
- Unknown
- Launches in 2011
- 83rd of 84