Ekran 15L (Ekran 3b), a Soviet KAUR-3 geostationary direct-broadcast television satellite intended for Siberia and the Far North. Proton-K/DM from Baikonur Site 200/40 failed to reach orbit, the second of three consecutive Ekran Proton losses in 1978.
- Outcome
- Failure
- Orbit
- Direct-GEO
- Geostationary orbit
- Payload to orbit
- Did not reach orbit
- Flight
- 11th
- of 66 Proton-K/DM flights
- Date and time
- 17 August 1978, 20:02 UTC
- Rocket
- Proton-K/DM
- Builder
- Khrunichev
- Launch site
- 200/40, Baikonur Cosmodrome, Republic of Kazakhstan
- Payload
- Communications
- Launches in 1978
- 82nd of 128