Ariane 5 ECA orbited Al Yah 3 and SES-14, 2 telecommunications satellites from The Guiana Space Centre on Thursday January, 25th.
Arianespace - Ariane 5's launch operator - announces that the launcher’s liftoff took place on January 25, 2018 at 23:20 (Paris time). A few seconds after ignition of the upper stage, the second tracking station located in Natal, Brazil, did not acquire the launcher telemetry. This lack of telemetry lasted throughout the rest of powered flight. Subsequently, both satellites were confirmed separated, acquired and they are on orbit. SES-14 and Al Yah 3 are communicating with their respective control centers. Both missions are continuing.