Английская Википедия:Ekspress-AM4R

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Шаблон:Short description Шаблон:Use British English Шаблон:Use dmy dates Шаблон:Infobox spaceflight

Ekspress-AM4R (Шаблон:Lang-ru meaning Express-AM4R) [1] was a Russian communications satellite intended for operation by the Russian Satellite Communications Company (RSCC). Constructed as a replacement for Ekspress-AM4, which was left unusable after the upper stage of the launch vehicle carrying it malfunctioned, Ekspress-AM4R was also lost due to a launch failure.[2]

Satellite description

Astrium, which had become part of Airbus Defence and Space by the time of the satellite's launch, constructed Ekspress-AM4R, which was based on the Eurostar-3000 satellite bus.[3] It was identical in design to Ekspress-AM4, with a mass of Шаблон:Cvt and a planned operational lifespan of fifteen years. The satellite carried sixty-three transponders: thirty operating in the C-band of the electromagnetic spectrum, twenty eight in the Ku-band, two in the Ka-band and three in the L-band. It was to have been the largest and most powerful satellite in the Ekspress constellation.[4]

Launch

Khrunichev State Research and Production Space Center was contracted to launch Ekspress-AM4R, using a Proton-M / Briz-M launch vehicle - the same configuration that had failed to deploy Ekspress-AM4. The launch took place from Site 200/39 at the Baikonur Cosmodrome, at 21:42:00 UTC on 15 May 2014. Shortly after launch the launch vehicle was reported to have encountered a problem during third stage flight, and as a result the satellite failed to reach orbit.[5]

References

Шаблон:Portal Шаблон:Reflist

Шаблон:Ekspress Шаблон:Orbital launches in 2014