On Tuesday, March 23, 2021, at the Vostochny Cosmodrome, joint teams of Roscosmos organizations began working on the second launch day schedule. The day before, the Soyuz-2.1b space rocket was transported to the launch site. Specialists from Roscosmos enterprises worked according to the launch day one schedule.
Today, active preparations continue for the launch scheduled for the early morning of March 25. At 22:30 UTC (07:30 local time), the specialists began checking the initial condition. Currently, they have checked the initial state and charging of the OneWeb spacecraft batteries, as well as control set readiness of the Fregat upper stage.
Coming are general tests with the launch and flight of the carrier rocket are simulated until the ascent unit is separated in low-earth orbit, After that the telemetric information will be analyzed and final operations will be performed at the launch complex according to the launch day two schedule.