SES-21
Launch
Launched on Oct 4, 2022 from Space Launch Complex 41, United States of America aboard a Atlas V 531.
Atlas V 531 | SES-20 & SES-21 →
Live · TLE epoch 2026-09-08 12:05 UTC
Orbit class
GEO — Geostationary (~35,786 km, equatorial)
Operator
SES
Country
SES
Manufacturer
—
Launched
Oct 4, 2022
Mass
—
Apogee
35,799 km
Perigee
35,791 km
Inclination
0.03°
Period
23.94 h
Part of the SES constellation · this satellite is one of 20 (planned: 70)
Global GEO + MEO (O3b) comms fleet.
Altitude history
Apogee and perigee for SES-21 across 103 days of archived orbital elements (105 element sets, one per day).
Trend
Stable
Change
-0.2 km
Rate
-0.00 km/day
Now
35791 × 35799 km
Apogee Perigee
Derived from our own archive of CelesTrak orbital elements, sampled every 3 hours. Short windows show drag and station-keeping; they are not a reentry prediction.
Launched with
One other catalogued object still in orbit from launch 2022-123 (Atlas V 531 | SES-20 & SES-21).
- SES-20 · 53960
Sources & further reading
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