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YAOGAN-40 01B

Chinese ELINT Naval Surveillance (Polar Orbit, Next-Gen) · CASC / PLA

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Second satellite of the first Yaogan-40 formation, part of China's newest-generation polar-orbiting naval ELINT surveillance system. Yaogan-40's near-polar inclination lets it pass over every ocean on Earth within hours, a significant capability upgrade from the geographically limited Pacific-focused coverage of the earlier Yaogan-25 and Yaogan-30 triplet families.

Its orbit

Orbit
Low Earth Orbitcan appear as a fast-moving star at dawn or dusk
Altitude
530–532 mi (854–857 km)
Inclination
86.0°
One orbit
101.9 minutes14.1 orbits a day
NORAD ID
57832
Int’l designator
2023-139C
Launched
2023

Orbital elements from CelesTrak, as of 22 Sep 2026.

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