October 14, 2021 – Performed on Thursday, October 14 at precisely 6:40 pm. local time at Russia’s Vostochny Cosmodrome (9:40 a.m. UTC), Soyuz Flight ST36 lifted-off with 36 OneWeb satellites onboard, bringing the size of the fleet in orbit to 358, after this successful deployment. Flight ST36 was the 61st Soyuz mission carried out by Arianespace and its Starsem affiliate. The mission lasted three hours and 51 minutes. The 36 satellites were deployed during nine separation sequences, at an altitude of 450 km. The launch of the satellites was operated by Arianespace and its Euro-Russian affiliate Starsem under contract with Glavkosmos, a subsidiary of Roscosmos, the Russian space agency. Arianespace is responsible for the overall mission and flight-worthiness, with the support of Starsem for launch campaign activities including management of its own launch facilities at the Baikonur Cosmodrome. RKTs-Progress (the Samara Space Center) is responsible for the design, development, manufacture and integration of the Soyuz launch vehicle as well as for the 3-stage Soyuz flight. NPO Lavotchkin is responsible for the launch preparation operations and flight of the Fregat orbital vehicle.