Launched Cosmos 2087, an Oko early-warning satellite (US-K series, Oko No. 65) meant to detect ballistic missile launches from a Molniya-type elliptical orbit; ground controllers reportedly never established communication with the spacecraft after launch.
- Outcome
- Success
- Orbit
- Elliptical
- Elliptical orbit
- Payload to orbit
- 1.6 T (est.)
- Flight
- 1st
- of 8 Molniya 8K78M-PVB flights
- Date and time
- 25 July 1990, 18:13 UTC
- Rocket
- Molniya 8K78M-PVB
- Builder
- Progress RSC
- Launch site
- 16/2, Plesetsk Cosmodrome, Russian Federation
- Payload
- Government/Top Secret
- International designator
- 1990-064
- Launches in 1990
- 67th of 121
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