ATV conducts first reboost for the International Space Station

The first reboost of the of the ISS by ATV-4 has just finished and was fully successful. Two OCS (orbital control system) thrusters (engines 2, 4) functioned flawlessly during the burn that lasted 407 sec. ATV provided the ISS with a change in velocity (delta-v) of 1.0 m/sec. The next propulsive support, using just the ACS system (attitude control system, i.e. thrusters) is planned during the EVA on 24 June during which ATV’s propulsion system will be used to ’desaturate’ the ISS control momentum gyroscope (CMG).