The Ariane 5 that will carry Europe's fourth Automated Transfer Vehicle (ATV) Albert Einstein has completed its final assembly at the Spaceport, said Arianespace in a statement received by Xinhua Wednesday.

Integration for the second Ariane 5 launcher in 2013 was finished as the latest ATV was encapsulated inside the 17-meter tall payload fairing at the Spaceport's Final Assembly Building.

"This component is designed to protect spacecraft passengers during the heavy-lift launcher's initial ascent through the atmosphere," Arianespace said.

This mission has a precise scheduled liftoff time on June 5 at 6:52:13 p.m. local time from the Spaceport's launch complex.

Following the release from its Ariane 5 vehicle at 1 hour, 3 minutes and 53 seconds after liftoff, ATV Albert Einstein will rendezvous with the International Space Station (ISS) for up to six months docked at the orbital facility for its resupply duties, as well as re-boosting the ISS to its nominal orbit when necessary.

With a mass of more than 20 tons, ATV Albert Einstein will be the heaviest payload ever lofted by an Ariane 5.