Science
HJ-2B
Chinese Disaster Monitoring Satellite · CNSA / MEE (China)
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HJ-2B, flying in formation with its twin HJ-2A, doubles China's ability to catch a wildfire, a chemical spill, or a flash flood within hours rather than days — a disaster response capability China built in direct response to the communication and imagery gaps exposed by the deadly 2008 Sichuan earthquake.
Its orbit
- Orbit
- Low Earth Orbitcan appear as a fast-moving star at dawn or dusk
- Altitude
- 400–401 mi (644–645 km)
- Inclination
- 97.9°
- One orbit
- 97.5 minutes14.8 orbits a day
- NORAD ID
- 46479
- Int’l designator
- 2020-067B
- Launched
- 2020
Orbital elements from CelesTrak, as of 22 Sep 2026.
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