Due to unavailability of a downrange tracking station, Arianespace has taken the decision to postpone the fueling of the three-stage Soyuz launcher.
Pending the resolution of this anomaly the earliest launch date is now December 3, 2021 at :
07:23 p.m. Washington, D.C. time,
09:23 p.m. Kourou time,
00:23 a.m. Universal time (UTC), on December 4,
01:23 a.m. Paris time, on December 4,
03:23 a.m. Moscow time, on December 4.
The Soyuz launch vehicle and the satellites are in stable and safe conditions.