Today, May 27, 2021, Roskosmos will launch a Soyuz-2.1b carrier rocket with a Fregat upper stage and 36 OneWeb spacecraft on board from the Vostochny cosmodrome.
The launch is scheduled for 20:43 Moscow time. Everyone will be able to admire the launch with the help of the live broadcast, which will begin at 20:00 Moscow time.
Approximately nine minutes after the start, the head part – the upper stage and satellites – will separate from the third stage. Then the “Fregat” will launch the vehicles into the target orbit. The satellites will be separated in several stages. It is expected that the launch of satellites into orbit will take 3 hours 51 minutes.
As the press service of Roscosmos notes, this will be the fourth fully commercial launch from the Vostochny cosmodrome, implemented by order of the European Arianespace and the Russian-French company Starsem.
OneWeb intends to deploy a low-orbit constellation of more than 600 microsatellites (weighing 150 kg) to provide high-speed broadband Internet services everywhere, whose customers should primarily be Wi-Fi, LTE or 5G operators, as well as Internet providers.
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