![[AUTO] Atlas V 531 - image](/media?u=https%3A%2F%2Fthespacedevs-prod.nyc3.digitaloceanspaces.com%2Fmedia%2Fimages%2Fatlas2520v2520531_image_20190222030726.jpeg&w=1600)
United Launch AllianceAtlas V 531Space Launch Complex 41, Cape Canaveral SFS, FL, USA
SES-20 & SES-21
Launched
October 4, 2022
Summary
SES-20 & SES-21 launched on an United Launch Alliance Atlas V 531 from Space Launch Complex 41, Cape Canaveral SFS, FL, USA on October 4, 2022. It was United Launch Alliance's 155th launch, 7th this year and humanity's 6,309th orbital launch attempt. It was the 5th Atlas V 531 flight and the 1st this year. The payload was bound for Geostationary Orbit (Direct-GEO). SES-20, one of 3 catalogued objects, reached a 34,966 × 35,028 km orbit inclined 1.9°. 3 objects from this launch are catalogued, 2 of them payloads.
- Watch
- Oct. 4 Live Broadcast: Atlas V SES-20/21United Launch Alliance
- Vehicle
- Atlas V 531 · United Launch Alliance
- Booster
- No booster details on record.
- Mission
- Communications · Geostationary Orbit (Direct-GEO)
- Milestone
- 5th Atlas V 531 flight · 1st this yearUnited Launch Alliance's 155th launch7th this yearhumanity's 6,309th orbital launch attempt127th orbital launch attempt this year
Webcast
Flight preview
Simulate in Flight ClubOrbit: as tracked
SES-20 · NORAD 53960 · 2022-123 · Space-Track · tracking 1 of 3 objects
Show the numbers for orbit elements
- Object
- OBJECT A
- Object ID
- 2022-123A
- Epoch
- 2022-10-05 13:56:08 UTC
- Mean motion
- 1.03182719 rev/day
- Eccentricity
- 0.0007569
- Inclination
- 1.8627°
- Ascending node
- 167.3467°
- Arg. of perigee
- 188.4848°
- Mean anomaly
- 338.3789°
- Element set
- 999
- Rev at epoch
- 0
- B*
- 0
Perigee, apogee and period are Kepler figures from the catalogued mean elements, not a propagated state. Published orbit: Direct-GEO.
Catalogued objects
3 catalogued: 2 payloads, 1 rocket stage; 3 still in orbit
- SES-20 · NORAD 53960 · in orbit
- SES-21 · NORAD 53961 · in orbit
Centaur AV-099 · in orbit
Data from J. McDowell, planet4589.org
About this launch
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.
Pad
Space Launch Complex 41, Cape Canaveral SFS, FL, USA
108th launch from Space Launch Complex 41, 6th this year · 859th from Cape Canaveral SFS, FL, USA
125 launches from this pad · 1,131 from Cape Canaveral SFS, FL, USA
61 days after the previous launch from this pad
Updates
Launch success
Show 9 earlier updates
Liftoff
SwGustav · 10/4/2022 · source
Coverage live
SwGustav · 10/4/2022 · source
Weather 90%
Nosu · 10/4/2022 · source
Weather 80%
Nosu · 10/4/2022 · source
Weather 70%
Cosmic_Penguin · 10/1/2022 · source
Delayed to Oct 4th due to Hurricane Ian
SwGustav · 9/27/2022 · source
Weather 20%
Nosu · 9/26/2022 · source
Added launch time
Cosmic_Penguin · 9/20/2022 · source
NET September 30
Cosmic_Penguin · 9/9/2022 · source
Questions
When did SES-20 & SES-21 launch?
SES-20 & SES-21 launched on October 4, 2022. The time is known to the hour, not the minute.
Where can I watch SES-20 & SES-21?
Coverage: Oct. 4 Live Broadcast: Atlas V SES-20/21. Watch the replay
What rocket launched SES-20 & SES-21?
Atlas V 531, flown by United Launch Alliance. Atlas V 531 spec sheet
Where did SES-20 & SES-21 launch from?
Space Launch Complex 41, Cape Canaveral SFS, FL, USA.
What orbit did SES-20 & SES-21 reach?
SES-20, one of 3 catalogued objects, reached a 34,966 × 35,028 km orbit inclined 1.9°.
How many satellites did SES-20 & SES-21 launch?
2 payloads from this launch are catalogued, 2 of them still in orbit (Data from J. McDowell, planet4589.org).