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CLASSIFIED

YAOGAN-31 04B

Chinese ELINT Naval Surveillance (JB-8 Triplet) · CASC / PLA

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Second satellite of the fourth Yaogan-31 triplet, part of China's continuing high-altitude ELINT constellation. By 2023, the combined JB-8 family across all its generations represented one of the longest-running and most consistently replenished Chinese military satellite programs, spanning over a decade of continuous operational deployment.

Its orbit

Orbit
Low Earth Orbitcan appear as a fast-moving star at dawn or dusk
Altitude
595–765 mi (958–1,232 km)
Inclination
63.4°
One orbit
107.0 minutes13.5 orbits a day
NORAD ID
47856
Int’l designator
2021-020C
Launched
2021

Orbital elements from CelesTrak, as of 22 Sep 2026.

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