The Vostochny Space Center (TsENKI branch) and the Progress Rocket Space Center (both parts of Roscosmos) specialists relocated the Soyuz-2.1b first and second stages assembly to the working place for pre-test preparations at launch vehicle integration and test building.

At the same time, preparation and launching crew started working with payload fairing shells. The Fregat upper stage, used for the mission, is located at fuel-and-neutralization area for filling. According to the work schedule, Fregat fueling will be carried out till April 11, 2021.

The launch of a new batch of 36 OneWeb spacecraft from the Vostochny Cosmodrome is scheduled for April 2021. It will become the third fully commercial launch, conducted on request of the Arianespace French company for OneWeb at Russian cosmodrome.