TJS-3

TJS 3 (Tongxin Jishu Shiyan) is a Chinese geostationary satellite of unknown purpose. The lack of public information has led to the suspicion that this satellite has a military mission. It has been speculated that the satellite might be in fact a military SIGINT or early warning satellite. Reportedly the satellite is built on the SAST-5000 all-electric bus and features a multi-frequency and high-speed communications payload.