The final countdown for todays Ariane 5 flight with the Yahsat Y1A and Intelsat New Dawn telecommunications satellites is underway at Europe’s Spaceport. Liftoff of the heavy-lift vehicle is scheduled at the start of a launch window that opens at 6:45 p.m., local time in French Guiana.
Ariane 5s payload lift performance for this mission is nearly 10,065 kg., which includes a mass of 8,965 kg. for its two satellite passengers, along with the associated integration hardware and the launchers SYLDA multi-payload dispenser system.