Please make a donation to support Gunter's Space Page.
Thank you very much for visiting Gunter's Space Page. I hope that this site is useful and informative for you.
If you appreciate the information provided on this site, please consider supporting my work by making a simple and secure donation via PayPal. Please help to run the website and keep everything free of charge. Thank you very much.

TJS 2, 5, 6 (Huoyan-1 ?)


TJS 2 (Tongxin Jishu Shiyan) is a Chinese geostationary satellite.

The satellite was built by SAST. According to public announcement the satellite will be mainly used to conduct a test on high speed/multi-frequency wide-band data transfer communication.

The lack of public information has lead to the suspiction, that this satellite has a military mission. The published image of the satellite does not fit to a communications satellite. It has been speculated, that it might be in fact a military Huoyan-1 early warning satellite.

The satellite was launched in January 2017.

Another SAST built satellite, TJS 5, was launched on 7 January 2020. It has been speculated to be of the same type as TJS 2, as the generic description, manufacturer and NOTAMs are nearly the same as for TJS 2.

Nation: China
Type / Application: Early warning ?
Contractors: SAST
Configuration: SAST-5000 ?
Propulsion: ?
Power: 2 deployable solar arrays, batteries
Orbit: GEO
Satellite COSPAR Date LS Launch Vehicle Remarks
TJS 2 (Huoyan-1 01 ?) 2017-001A 05.01.2017 Xi LC-2 CZ-3B/G2
TJS 5 (Huoyan-1 02 ?) 2020-002A 07.01.2020 Xi LC-2 CZ-3B/G3
TJS 6 (Huoyan-1 03 ?) 2021-010A 04.02.2020 Xi LC-3 CZ-3B/G2(2)