Science
REIMEI (INDEX)
Auroral Imaging Science Satellite · JAXA / ISAS
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Reimei (Index), a Japanese science satellite launched in 2005 to study the aurora — imaging the northern and southern lights with high-speed cameras to understand how charged particles from the solar wind create the visible glow. It has produced some of the sharpest scientific auroral imagery of any dedicated spacecraft.
Its orbit
- Orbit
- Low Earth Orbitcan appear as a fast-moving star at dawn or dusk
- Altitude
- 324–340 mi (521–547 km)
- Inclination
- 98.0°
- One orbit
- 95.2 minutes15.1 orbits a day
- NORAD ID
- 28810
- Int’l designator
- 2005-031B
- Launched
- 2005
Orbital elements from CelesTrak, as of 7 Nov 2026.
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