On September 7, 2015 Soyuz-STB booster with two European navigational satellites Galileo was rolled-out to the launchpad of Kourou spaceport.
After installation Roscosmos specialists conducted all necessary operations on supply lines mating, thermal conditioning schemes assembling, filling pipelines mating and other works stipulated by prelaunch schedule.
Soyuz-STB booster with Fregat-MT upper stage and two European navigational satellites of Galileo system (Galileo-FOC FM05, Galileo-FOC FM06) is planned for September 11, 2015, 05:08:10, Moscow time.