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CLASSIFIED

YAOGAN-31 01A

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

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Lead satellite of the first Yaogan-31 triplet, launched December 2018 as the sixth distinct ELINT triplet family in China's naval surveillance program (following Yaogan-9, 16, 17, 20, and 25). Yaogan-31 operates in the same 63.4°-inclined, high-altitude orbital regime as Yaogan-25, providing wide-area Pacific coverage complementary to the lower-altitude, more frequently replenished Yaogan-30 triplets.

Its orbit

Orbit
Low Earth Orbitcan appear as a fast-moving star at dawn or dusk
Altitude
549–812 mi (883–1,307 km)
Inclination
63.4°
One orbit
107.0 minutes13.5 orbits a day
NORAD ID
43275
Int’l designator
2018-034A
Launched
2018

Orbital elements from CelesTrak, as of 22 Sep 2026.

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