Molniya-M from Plesetsk lofted Kosmos 1581, a US-K (Oko) missile early-warning satellite placed in a highly elliptical Molniya orbit to watch for ICBM launches for the Soviet military.
- Outcome
- Success
- Orbit
- Elliptical
- Elliptical orbit
- Payload to orbit
- 1.6 T (est.)
- Flight
- 160th
- of 272 Molniya-M 2BL flights
- Date and time
- 3 July 1984, 21:30 UTC
- Rocket
- Molniya-M 2BL
- Builder
- Progress RSC
- Launch site
- 43/4 (43R), Plesetsk Cosmodrome, Russian Federation
- Payload
- Government/Top Secret
- International designator
- 1984-071
- Launches in 1984
- 71st of 129
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