Ekran 13L (Ekran 3a), a Soviet geosynchronous direct-broadcast TV satellite for Siberia and the Far North, lost when the Proton-K/DM failed during first-stage ascent from Baikonur Site 200/40.
- Outcome
- Failure
- Orbit
- Direct-GEO
- Geostationary orbit
- Payload to orbit
- Did not reach orbit
- Flight
- 9th
- of 66 Proton-K/DM flights
- Date and time
- 27 May 1978, 01:25 UTC
- Rocket
- Proton-K/DM
- Builder
- Khrunichev
- Launch site
- 200/40, Baikonur Cosmodrome, Republic of Kazakhstan
- Payload
- Communications
- Launches in 1978
- 56th of 128