CLASSIFIED
YAOGAN-31 04C
Chinese ELINT Naval Surveillance (JB-8 Triplet) · CASC / PLA
Right now
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Third satellite completing the fourth Yaogan-31 triplet, launched 2023. Four Yaogan-31 generations now stood alongside the original Yaogan-9, 16, 17, 20, and 25 formations — six distinct triplet families sharing the same high-altitude ELINT mission, together forming one of the most enduring signals intelligence architectures any nation has built for naval surveillance.
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
- 47857
- Int’l designator
- 2021-020D
- Launched
- 2021
Orbital elements from CelesTrak, as of 22 Sep 2026.
More classified
- YAOGAN-32 02AChinese Military Satellite (Assessed SAR Pair)
- YAOGAN-32 02BChinese Military Satellite (Assessed SAR Pair)
- YAOGAN-32 AChinese Military Satellite (Assessed SAR Pair)
- YAOGAN-32 BChinese Military Satellite (Assessed SAR Pair)
- YAOGAN-33 01Chinese Military Reconnaissance
- YAOGAN-33 02Chinese Military SAR Reconnaissance