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TJS 4 []

TJS 4 (Tongxin Jishu Shiyan) is a Chinese satellite of unknown purpose.

Reportedly the satellite was built by CAST and is a technological demonstration of multi-band, high speed communication techniques. The launch animation showed a satellite featuring a deployable mesh antenna and a number of smaller antennas, hinting to a SIGINT mission.

The satellite was launched in October 2019 into a geostationary transfer orbit.

Nation: China
Type / Application: ?
Contractors: CAST ?
Propulsion: ?
Power: solar arrays, batteries
Orbit: GEO
Satellite COSPAR Date LS Launch Vehicle Remarks
TJS 4 2019-070A 17.10.2019 Xi LC-3 CZ-3B/G3