Science
HUANJING 1B (HJ-1B)
Disaster Monitoring / Infrared · CNSA / CRESDA
Right now
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HJ-1B flies with HJ-1A, adding infrared imaging that detects heat — revealing wildfires, industrial hot spots, and volcanic activity invisible to optical cameras. Together they established China's domestic disaster response capability, reducing dependence on foreign satellite imagery during the country's frequent natural disasters.
Its orbit
- Orbit
- Low Earth Orbitcan appear as a fast-moving star at dawn or dusk
- Altitude
- 370–403 mi (596–649 km)
- Inclination
- 97.7°
- One orbit
- 97.0 minutes14.8 orbits a day
- NORAD ID
- 33321
- Int’l designator
- 2008-041B
- Launched
- 2008
Orbital elements from CelesTrak, as of 7 Nov 2026.
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