Communications
O3B FM15
Medium Earth Orbit Broadband (O3B Constellation) · SES
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- Altitude
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O3B FM15, part of SES's original O3B ('Other 3 Billion') medium-Earth-orbit broadband constellation, providing a medium-Earth-orbit altitude of roughly 5,000 miles, chosen as the deliberate sweet spot between GEO's excessive latency and LEO's need for hundreds of satellites for continuous coverage.
Its orbit
- Orbit
- Medium Earth Orbita high vantage point, ideal for navigation
- Altitude
- 5,016–5,021 mi (8,072–8,080 km)
- Inclination
- 0.1°
- One orbit
- 4.8 hours5.0 orbits a day
- NORAD ID
- 43231
- Int’l designator
- 2018-024A
- Launched
- 2018
Orbital elements from CelesTrak, as of 22 Sep 2026.
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