For its sixth launch of the year, and the third Ariane 5 mission in 2017 from the Guiana Space Center in French Guiana, Arianespace will orbit two satellites: ViaSat-2 for ViaSat Inc.; and EUTELSAT 172B for Eutelsat. This mission – the 237th overall by an Ariane launcher – will mark a new all-time Arianespace record for a total payload weight orbited: 10,865 kg., including a net mass at liftoff of 9,969 kg. for the two satellites. ViaSat-2 and EUTELSAT 172B are the 558th and 559th satellites to be launched by Arianespace. With this 289th mission by the Arianespace family of launchers (Ariane 5, Soyuz and Vega), Arianespace is serving global connectivity on Earth. The launch will be from Ariane Launch Complex No. 3 (ELA 3) in Kourou, French Guiana. The Launch Readiness Review (LRR) will take place on Tuesday, May 30, 2017 in Kourou, to authorize the start of operations for the final countdown.