Kosmos 837, a Soviet Molniya-2 military/civilian communications satellite intended for highly elliptical Molniya orbit. Molniya-M/Blok ML from Plesetsk Site 43/4 suffered upper-stage malfunction and left the craft in a much lower, unusable orbit.
- Outcome
- Partial
- Orbit
- Elliptical
- Elliptical orbit
- Payload to orbit
- 2 T (est.)
- Flight
- 75th
- of 272 Molniya-M 2BL flights
- Date and time
- 1 July 1976, 08:05 UTC
- Rocket
- Molniya-M 2BL
- Builder
- Progress RSC
- Launch site
- 43/4 (43R), Plesetsk Cosmodrome, Russian Federation
- Payload
- Government/Top Secret
- International designator
- 1976-062
- Launches in 1976
- 63rd of 131
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