Last mission under Galileo in 2016 ! This time four satellites designed and manufactured by OHB-System GmbH and SSTL will take their place under fairing of Ariane 5. Satellites contracted in 2010 will improve constellation of Galileo satellites providing navigation signal on L band from circular orbit of 23616 km with inclination at 56°. Each satellite is equipped with two rubidium and two hydrogen maser atomic clocks and MEO SAR transponder as additional payload. Satellites will be launched by Arianespace on atop of Ariane 5 rocket.