Intensive preparation for the launch of the “Soyuz-2.1b” missile launch of the “Union” and 36 ONEB spacecraft on board on board on board. Today, March 24, 2021, specialists of subsidiaries of the state corporation “Roskosmos” have begun to perform operations of the third start day.
Yesterday, work was underway on the schedule of the second starting day, which ended with the general tests – checking the functioning of the starting complex systems with the imitation of the separation of the carrier rocket, its flight to the orbital block separation on the subborital trajectory. The main content of the work today is to spray the refueling system of highly concentrated hydrogen peroxide and cooling fuel.
So, at 02:50 Moscow time (08:50 local), the starting calculation of the cosmodrome took its jobs and began checking the initial state: control of the initial state and charge of batteries 36 spacecraft of the Satellite company OneWeb. At 06:00 MSK began spraying the refueling system with highly concentrated hydrogen peroxide, then the defects of filling sleeves for space assignment and final operations.
On the night of Thursday, a meeting of the State Commission will be held on Friday, following which decisions will be made to refuel the Soyuz-2.1b missile for components of fuel and its start. The launch of the Soyuz-2.1b carrier missile with an overclocking unit “Frigate” and the party from 36 spacecraft of the British company OneWeb is scheduled for March 25, 2021.