Launched a Gorizont geostationary communications satellite (s/n 30L) to relay telephone, telegraph and Soviet Central Television's Orbita network broadcasts, including Intercosmos cooperative programming. It was the final flight of the original Proton-K/Blok DM configuration.
- Outcome
- Success
- Orbit
- Direct-GEO
- Geostationary orbit
- Payload to orbit
- 2.9 T
- Flight
- 66th
- of 66 Proton-K/DM flights
- Date and time
- 20 June 1990, 23:36 UTC
- Rocket
- Proton-K/DM
- Builder
- Khrunichev
- Launch site
- 200/40, Baikonur Cosmodrome, Republic of Kazakhstan
- Payload
- Communications
- International designator
- 1990-054
- Launches in 1990
- 56th of 121
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