Communications
GLOBALSTAR M091
Mobile Satellite Communications · Globalstar
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Part of Globalstar's 52°-inclined constellation, launched to replace a first-generation fleet whose premature degradation nearly ended the company. Its second life, powering Apple's Emergency SOS service since 2022, has proven far more consequential than its original satellite phone mission ever was.
Its orbit
- Orbit
- Low Earth Orbitcan appear as a fast-moving star at dawn or dusk
- Altitude
- 883 mi (1,421 km)
- Inclination
- 52.0°
- One orbit
- 114.1 minutes12.6 orbits a day
- NORAD ID
- 37741
- Int’l designator
- 2011-033C
- Launched
- 2011
Orbital elements from CelesTrak, as of 22 Sep 2026.
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