Final Atlas V 531 to launch dual SES-20 and SES-21 satellites

United Launch Alliance (ULA) is ready to launch the dual-manifested SES-20 & 21 telecommunication satellites on the final Atlas V 531 rocket to a near-circular geosynchronous orbit (GSO). The Atlas V will launch from Space Launch Complex-41 (SLC-41) at the Cape Canaveral Space Force Station (CCSFS) on Oct. 4 during a 45-minute launch window opening at 5:36 PM EDT (21:36 UTC). The 45th Weather Squadron first predicted an 80% chance of favorable weather, which improved to 90% just over five hours ahead of the opening of the window. SES-20 & 21 will be ULA’s first launch for SES and Atlas V’s third for the company. The two satellites are the latest of up to six satellites for the company’s accelerated C-band clearing plan to meet the FCC’s 5G rollout plan. The SES-20 & 21 mission is ULA’s first commercial communications satellite launch since the Jupiter 2 / EchoStar XIX mission. Jupiter 2 / EchoStar XIX reached GTO atop an Atlas V 431 (AV-071) in December 2016. It was also the first mission directly contracted to ULA for a commercial launch. See AlsoSES-20 & 21 UpdatesNSF StoreL2 ULA SectionClick here to Join L2 The Atlas V rocket is ULA’s…

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Final Atlas V 531 to launch dual SES-20 and SES-21 satellites

Updated: October 4, 2022 — 10:26 am