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 UTC

This mission is complete.

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, temperature not reported

Mission Timeline

30 / 30100%

Ground vector

Launch site

Site locked

Space Launch Complex 41

Cape Canaveral SFS, FL, USA

Global range
SITE LOCK
Latitude
28.583°N
Longitude
80.583°W

Range Weather

Launch commit criteria

90%
GO
FavorableNo active constraints
Weather Rules

No formal weather rule concerns published.

Primary concern
None published
Rule count
0
Temperature
Not reported
Surface wind
Not reported
Window

09:36 PM UTC - 10:21 PM UTC

Vehicle

Atlas V 531

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Height59.7 m
LEO Payload18,850 kg
Launches210
Successes175

Provider

United Launch Alliance

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USA • Founded 2006

Schedule History

No meaningful launch-time or status changes recorded.