
Fri, Oct 23, 2026, 7:25 PM (your time) · Launch Area 94 (SLS-2 / 603), Jiuquan Satellite Launch Center, People's Republic of China
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Orbital Attempt
#7,424
CASC Mission
#621
Pad Launch
#139
Location Launch
#300
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.
Length
44.1 m
Diameter
3.35 m
Launch Mass
249 t
Thrust
2,961 kN
Capacity
4,200 kg
Capacity
1,500 kg
Reusable
No
Maiden Flight
1999
Fastest Turnaround
5d 21h
Total Launches
58
Successful
57
Failed
1
Consecutive Success
38
Maiden flight: May 10, 1999
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.
Founded
1999
Administrator
Chairman & President: Lei Fanpei
Total Launches
618
Successful
602
Failed
16
Pending
10
Consecutive Success
9
Jiuquan Satellite Launch Center is a Chinese spaceport located between the Ejin, Alxa, Inner Mongolia and Hangtian Town, Jinta County, Jiuquan, Gansu Province. It is part of the Dongfeng Aerospace City (Base 10).
Timezone
Asia/Shanghai
Local Launch Time
Oct 24, 2026, 3:25 AM
Total Launches
299
Total Landings
3
Coordinates
40.9581, 100.2911
Oct 23, 2026, 7:25 PM
Hour
2 updates
7:17 PM
Window Open
7:39 PM
Window Close