Atlas V 531 — mission imagery
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Success

SES-20 & SES-21

Atlas V 531United Launch AllianceSpace Launch Complex 41
Tuesday, October 4, 2022 · 09:36 PM UTCAdd to Calendar

This mission is complete.

Vehicle

Atlas V 531

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Atlas V is an expendable launch system in the Atlas rocket family. It was formerly operated by Lockheed Martin and is now operated by United Launch Alliance (ULA), a joint venture with...

Height59.7 m
LEO Payload18,850 kg
Launches211
Successes173

Provider

United Launch Alliance

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USA • Founded 2006

United Launch Alliance (ULA) is a joint venture of Lockheed Martin Space Systems and Boeing Defense, Space & Security. ULA was formed in December 2006 by combining the teams at these companies which provide spa...

Mission Brief

SES-20 & SES-21 are a pair of C-band communication satellites built by Boeing, using the highly efficient all-electric propulsion BSS-702SP satellite bus. These satellites will enable SES to clear 280MHz of mid-band spectrum for 5G use while seamlessly migrating SES’s existing C-band customers and ensuring the continued delivery of digital television to nearly 120 million American TV homes and other critical data services.

PayloadSES-20 & SES-21
OrbitGeostationary Orbit
CustomerUnited Launch Alliance
Stages2
PadSpace Launch Complex 41, Cape Canaveral SFS, FL, USA
WeatherNo formal weather concerns published, N/A

Mission Timeline

11 / 11100%
Site lock

Launch Site

Space Launch Complex 41, Cape Canaveral SFS, FL, USA

LAUNCH SITE
28.583°N, 80.583°W

Weather

Condition
No formal weather concerns published
Temperature
N/A
Wind
N/A
GO Probability
90%

Schedule History

No delays or schedule changes recorded.