|Ariane 5 ES launch|
|Launch||12 December 2017, 18:36:07 UTC|
|Payload||Galileo × 4|
The launcher was carrying 4 Galileo satellites, with a total payload mass of approximately 3,282 kilograms (7,236 lb). The satellites were accommodated inside the medium version of the upper stage fairing.
The 4 Galileo satellites, numbered SAT 19-20-21-22, built by OHB System in Bremen, Germany for the European Commission's Galileo programme under the supervision of the ESA, had a mass at liftoff of about 715 kilograms (1,576 lb) each, that is a total of approximately 2,860 kilograms (6,310 lb).
The mission was planned to last 4 hours, 40 minutes and 52 seconds, placing the two pairs of satellites into their medium Earth orbit, at an altitude of about 22,922 kilometres (14,243 mi) and an inclination of about 57 degrees.