Science
HAIYANG-2D
Chinese Ocean Dynamics Satellite · CNSA / NSOAS (China)
Right now
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- Altitude
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Haiyang-2D, completing a four-satellite Chinese ocean dynamics constellation that, together, can measure sea surface height and wind speed anywhere on Earth within hours — a global oceanographic capability built almost entirely within the past decade.
Its orbit
- Orbit
- Low Earth Orbitcan appear as a fast-moving star at dawn or dusk
- Altitude
- 590–600 mi (950–965 km)
- Inclination
- 66.0°
- One orbit
- 104.1 minutes13.8 orbits a day
- NORAD ID
- 48621
- Int’l designator
- 2021-043A
- Launched
- 2021
Orbital elements from CelesTrak, as of 22 Sep 2026.