Molniya-M/Blok-2BL from Plesetsk launched Kosmos 1317, a US-K (Oko) missile early-warning satellite into a highly elliptical Molniya orbit for Soviet strategic IR detection of ballistic missile launches. The satellite later self-destructed in January 1984.
- Outcome
- Success
- Orbit
- Elliptical
- Elliptical orbit
- Payload to orbit
- 1.6 T (est.)
- Flight
- 131st
- of 272 Molniya-M 2BL flights
- Date and time
- 31 October 1981, 22:53 UTC
- Rocket
- Molniya-M 2BL
- Builder
- Progress RSC
- Launch site
- 16/2, Plesetsk Cosmodrome, Russian Federation
- Payload
- Government/Top Secret
- International designator
- 1981-108
- Launches in 1981
- 110th of 126
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