OneWeb confirms third launch and dedicates it to ‘Spacewalker’ and late cosmonaut Alexei Leonov

OneWeb, the global communications company with a mission to bring connectivity to everyone everywhere, confirmed its next launch will take place on Saturday, March 21st at 17:06 (GMT) / 1:06 PM (EDT) / 22:06 (local time) from the historic Baikonur Cosmodrome in Kazakhstan.

OneWeb’s third launch and second of 2020 is scheduled for March 21st from the Baikonur Cosmodrome, Kazakhstan

The second launch for OneWeb in 2020, these additional 34 satellites will bring the constellation total to 74. The satellites are built by OneWeb Satellites, a joint venture between OneWeb and Airbus, that has revolutionized satellite manufacturing with a new high-volume manufacturing process that can build up to two satellites a day.


Arianespace will launch 34 OneWeb satellites, bringing the OneWeb constellation to 74 satellites.

Arianespace will launch OneWeb’s satellites into a near polar orbit of 450 kilometers, after which they will be raised to their final orbit of 1,200 kilometers.

OneWeb’s first customer demos are scheduled for the end of 2020 and availability of commercial services, for sectors such as maritime, aviation, government and enterprise, scheduled for the end of 2021.


OneWeb’s launch theme will commemorate the late Russian cosmonaut Alexei Leonov, who became the first person to walk in space 55 years ago this month

The theme for this launch commemorates the late Russian cosmonaut Alexei Leonov, who made history 55 years ago when he became the first person to exit a spacecraft and walk in space. The OneWeb mission patch bears his name and celebrates his achievement (see below). We are proud to celebrate the pioneers and trailblazers like Alexei who inspire us and who continue to fuel our drive for success.


OneWeb will be streaming the launch on Facebook and you can follow the launch on OneWeb social media channels: YouTube, Instagram, Twitter, Facebook.

OneWeb ST27 Launch Highlights

Launch Partners

ArianeSpace and Roscosmos


Launch Facility

Soyuz Launch Complex, Baikonur, Kazakhstan.


Lift Off

Lift Off: 17:06 UTC / 1:06 PM EDT / 22:06 local time – March 21, 2020

Mission Timeline (all times approximate)

- 4 h 30 min. Launch vehicle fuelling begins

- 1 h 35 min. End of fuelling operations

- 5 min 09s. Key on start

- 5 min. Fregat transfer to onboard power supply

- 40 s Ground-onboard power transfer

- 28 s Lower stage umbilical mast retraction

- 19 s Ignition

- 14 s Preliminary thrust level

Lift off!

How OneWeb's system works

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