Lifting-off at 1521 GMT, on 17 October, a Long March-3B/G2 rocket has dropped-off the TJSW-4 satellite into a Geostationary Transfer Orbit (GTO). The mission lifted-off from the Xichang Satellite Launch Center, Southern China.

The TJSW (Tongxin Jishu Shiyan Weixing) series of satellites are officially Communications Engineering Test Satellites, built by SAST. It is also suspected that these satellites are also used by the military for SIGINT or Early-warning technology testing purposes.

Launch of the Long March-3B/G2 rocket carrying the TJSW-4 satellite. Courtesy of Xinhua