The Arabsat-4 spacecraft are based on the Eurostar-2000+ version of the Eurostar satellite family. Both satellites received the names Badr-1 and Badr-4 respectively in February 2006. Badr 1 did not reach its planned orbit, when the upper stage of the Proton-M Briz-M (Ph.3) launch vehicle failed. After evaluating a lunar fly-by maneuvre to rescue the satellite, Badr 1 was deorbited on 24.03.2006 over the pacific.
Khrunichev State Research and Production Space Center is a Moscow-based producer of spacecraft and space-launch systems, including the Proton and Rokot rockets and is currently developing the Angara rocket family. The Proton launch vehicle launches from Baikonur and Rokot launches from Baikonur and Plesetsk. Angara will launch from Plesetsk and Vostochny.
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