The SJ 6 (Shi Jian 6) series consisted of pairs of technology satellites, which were reported to be used to probe the space environment, radiation and its effects, record space physical environment parameters, and conduct other related space experiments.
The Long March 4B (Chinese: 长征四号乙火箭), also known as the Chang Zheng 4B, CZ-4B and LM-4B is a Chinese orbital carrier rocket. Launched from Launch Complex 1 at the Taiyuan Satellite Launch Center, it is a 3-stage rocket, used mostly to place satellites into low Earth and sun synchronous orbits.
The China Aerospace Science and Technology Corporation (CASC) is the main contractor for the Chinese space program. It is state-owned and has a number of subordinate entities which design, develop and manufacture a range of spacecraft, launch vehicles, strategic and tactical missile systems, and ground equipment. It was officially established in July 1999 as part of a Chinese government reform drive, having previously been one part of the former China Aerospace Corporation. Various incarnations of the program date back to 1956.INFO WIKI
The 400th flight of China’s Long March rocket family deployed two classified Shijian 6 satellites into orbit Dec. 10, likely on a mission to test technology or gather signals intelligence data for the Chinese military.
A Long March 4B launched the Shijian-06 (05) group of satellites Dec. 9, marking the 400th launch of China’s Long March family of launch vehicles.
A Long March 4B reportedly carrying a pair of Chinese Shijian-6 Group 05 satellites has launched successfully from the Jiuquan Satellite Launch Center in China’s Inner Mongolia region. The launch took place at 00:11 UTC (08:11 Beijing time…