The final phase of Flight Ariane #253 (VA253) launch preparation operations has been stopped 2’14’’ before lift-off due to the unexpected behavior of one sensor of the liquid hydrogen tank of the main cryogenic stage.
Investigations are ongoing.
The soonest possible launch date is Saturday August 01 at:
5:30 p.m., Washington, D.C. time,
6:30 p.m., Kourou, French Guiana time,
9:30 p.m., Universal Time (UTC),
11:30 p.m., Paris time.
The Ariane 5 launch vehicle and its three spacecraft payloads are in stable and safe conditions.