Ekspress-A4 ( meaning Express-A4), is a Russian communications satellite which is operated by Russian Satellite Communications Company (RSCC). It was constructed by NPO PM and Alcatel Space and is based on the MSS-2500-GSO satellite bus.
The launch was contracted by Khrunichev State Research and Production Space Center, and used a Proton-K / Blok DM-2M launch vehicle flying from Site 200/39 at the Baikonur Cosmodrome.
Ekspress-A4 is a Russian geosynchronous communications spacecraft that was launched on 10 June 2002 from Baikonur by a Proton-K launch vehicle at 01:14:00 UTC. The spacecraft carries 12 transponders in C-band and five in Ku-band to provide voice, data, and video communications in Russia.
It is part of the Ekspress network of satellites. Following its launch and on-orbit testing, it was placed in geostationary orbit at 40ð West, from where it provides communications services to Russia. It is equipped with seventeen transponders. In January 2020, the satellite was retired and moved to a graveyard orbit above the geostationary orbit.