Science
Coriolis
Catalogued as CORIOLIS
Solar Wind Monitoring · US Navy / US Air Force
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A joint US Navy and Air Force satellite with an unusual mission: providing the world's only space-based measurements of solar wind directly arriving at Earth. Its SMEI instrument scans the entire sky every 102 minutes to detect solar storms — coronal mass ejections — before they hit. This gives forecasters up to three days advance warning before a geomagnetic storm could disrupt power grids, satellites, and GPS.
Its orbit
- Orbit
- Low Earth Orbitcan appear as a fast-moving star at dawn or dusk
- Altitude
- 510–521 mi (820–839 km)
- Inclination
- 98.7°
- One orbit
- 101.4 minutes14.2 orbits a day
- NORAD ID
- 27640
- Int’l designator
- 2003-001A
- Launched
- 2003
Orbital elements from CelesTrak, as of 22 Sep 2026.
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