Proton-K/Blok DM from Baikonur Site 200/40 launched Ekran 7 (Ekran 21L), a Soviet geostationary direct-broadcast television satellite (Stationar-T) relaying Central Television to Siberia and the Far North via UHF.
- Outcome
- Success
- Orbit
- Direct-GEO
- Geostationary orbit
- Payload to orbit
- 2.8 T
- Flight
- 25th
- of 66 Proton-K/DM flights
- Date and time
- 25 June 1981, 23:55 UTC
- Rocket
- Proton-K/DM
- Builder
- Khrunichev
- Launch site
- 200/40, Baikonur Cosmodrome, Republic of Kazakhstan
- Payload
- Communications
- International designator
- 1981-061
- Launches in 1981
- 63rd of 126
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