Albert Einstein ATV

[10] The Albert Einstein supplied the ISS with dry cargo, fuel, water and air to ensure the continued operation of the station.

In addition, the ATV used its own thrusters and fuel supply to reboost the ISS, to counteract the drag the residual atmosphere imposes on the station.

[17] On 19 June 2013, Albert Einstein conducted its first reboost of the ISS, performing a 407-second burn which provided a delta-v change of 1.0 m/s to the station.

[4] A further reboost was undertaken on 10 July 2013, where a burn of just less than 10 minutes provided a delta-v change of 1.45 m/s; this operation consumed 199 kilograms (439 lb) of propellant.

[18] By 12 July 2013, all the dry cargo had been unloaded from Albert Einstein, allowing the ATV to be filled with waste for removal from the station.

However, by 29 July a restart had been performed on both units, bringing all three of the ATV's computers back on-line without impacting the mission schedule.

The launch of ATV-4 on an Ariane 5ES rocket on 5 June 2013
ATV-4 approaches the ISS on 15 June 2013 to dock with the Zvezda module.