Tianhui-2-01
Long March 4B
China Aerospace Science and Technology Corporation
Mission
Tianhui-2-01
Type: Earth Science
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.
Trajectory
The trajectory is unavailable. Check back for updates.
Location
Unknown Pad
Taiyuan, People’s Republic of China
120 rockets have launched from Taiyuan, People’s Republic of China.

Rocket
Long March 4B – China Aerospace Science and Technology Corporation
- Family: Long March 4
- Length: 44.1 m
- Diameter: 3.35 m
- Launch Mass: 249 T
- Low Earth Orbit Capacity: 4200 kg
The Long March 4B was manufactured by China Aerospace Science and Technology Corporation with the first launch on 1999-05-10. Long March 4B has 47 successful launches and 1 failed launches with a total of 48 launches. 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.
Agency
China Aerospace Science and Technology Corporation – CASC
- Type: Government
- Abbreviation: CASC
- Administration: Chairman & President: Lei Fanpei
- Founded: 1999
- Launchers: Long March
- Country: CHN
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.