Launch success
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United Launch AllianceLaunch Successful
SES-20 & SES-21
Atlas V 531
Historical mission record
This page records Atlas V 531 | SES-20 & SES-21 and its reported outcome: Launch Successful. The date above is a historical record.
Source record updated . This is a source update, not a confirmed launch time.
Check the source: Atlas V SES-20 SES-21 ↗ · Launch Library ↗ · Flight Club ↗
Mission status
Launch Successful
Status reported by the mission data provider.
LAUNCH SITECape Canaveral SFS, FL, USA
Mission
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.
- Launch vehicle
- Atlas V 531
- Mission type
- Communications
- Destination orbit
- Geostationary Orbit
- Launch pad
- Space Launch Complex 41
- Provider
- United Launch Alliance
The vehicle
Published configuration and flight history.
Launch vehicle
Atlas V 531
Atlas V with 5m Fairing, 3 SRB, 1 Centaur upper stage engine.
- Height
- 60 m
- Diameter
- 3.8 m
- Stages
- 2
- Recorded launches
- 5
- First flight
- 2010-08-14
Recorded timing
This is a mission record, not an upcoming calendar appointment.
45 minute windowPublished target
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WINDOW CLOSES
Target ·
The target marker shows its position within the published window. The schedule may change before launch.
Launch site & orbit
Cape Canaveral SFS, FL, USA
The mission in perspective
Launch site & orbit
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Understand this orbit
Coverage & sources
Links supplied by the mission data provider.
Coverage and times may change.
Mission coverage
Oct. 4 Live Broadcast: Atlas V SES-20/21 ↗Explore on iPhone
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