Long March 4B | Tianhui-2-01

China Aerospace Science and Technology Corporation launch of a Long March 4B Rocket

Launch Status

China Aerospace Science and Technology Corporation was scheduled to launch a Long March 4B rocket as part of the Tianhui-2-01 mission. The launch window for the Earth Science mission was on Mon, Apr 29th, 2019, 6:52 PM EDT from Unknown Pad, Taiyuan. The status of the launch was Success. Don’t miss this exciting rocket launch! Watch the launch video of the Long March 4B and experience the excitement for yourself.



At 22:52 UTC on April 29, 2019, China used a Long March 4B rocket from the Taiyuan Satellite Launch Center to successfully launch two Tianhui-2-01 satellites. The satellites will be used for scientific experiments, land resource survey, geographic survey and mapping.


Unknown Pad, Taiyuan

Taiyuan, People's Republic of China


Long March 4

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.

China Aerospace Science and Technology Corporation

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.