Rocket DB

Long March family

Long March 4B

ActiveChinaChina Aerospace Science and Technology CorporationSpec: B

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.

Flights flown581 scheduled
Success rate98.3%57/58
Payload to LEO4,200kg
Maiden flight1999-05-10
Peak year20205 flights

Long March 4B is built by China Aerospace Science and Technology Corporation of China. It first flew on 10 May 1999.

Flight record

59 records
98.3% success rate57 of 58 flown · 1 failed
1999peak 2020 · 5 flights2026
First flight1999-05-10
Latest flight2026-09-10
Failures1
Consecutive successes38
Fastest turnaround5d 21h

Payload

Per mission profile
Low Earth orbit4,200kg
Geostationary transfer orbit1,500kg

Vehicle

B spec
Stages3
Length44.1m
Diameter3.35m
Launch mass249t
Liftoff thrust2,961kN
Maiden flight1999-05-10
ReusableNo

Pads used

4 pads
Launch Complex 931Launch Area 94 (SLS-2 / 603)13Launch Complex 713Launch Complex 3 (LC-3/LA-1)2

Orbits delivered

3 orbits
Sun-Synchronous Orbit26Low Earth Orbit14Polar Orbit2

Compare

Same payload class
vs Soyuz Uvs Tsiklon-3vs Tsiklon-2vs Long March 2Dvs Vostok 8A92Mvs Long March 3B/E

Launch history

59 launches
DateMissionPadOrbitOutcome
2026-09-10Long March 4B | Yaogan 53-01 to 03/56-01 to 03Launch Area 94 (SLS-2 / 603)Low Earth OrbitSuccess
2026-07-01Long March 4B | Haiyang 2ELaunch Area 94 (SLS-2 / 603)Sun-Synchronous OrbitSuccess
2025-12-30Long March 4B | Tianhui 7Launch Area 94 (SLS-2 / 603)Sun-Synchronous OrbitSuccess
2025-12-16Long March 4B | Ziyuan-3-04Launch Complex 9Sun-Synchronous OrbitSuccess
2025-12-09Long March 4B | Yaogan 47Launch Area 94 (SLS-2 / 603)Sun-Synchronous OrbitSuccess
2025-05-29Long March 4B | Shijian 26Launch Area 94 (SLS-2 / 603)Sun-Synchronous OrbitSuccess
2024-11-13Long March 4B | Haiyang 4-01Launch Complex 9Sun-Synchronous OrbitSuccess
2024-09-03Long March 4B | Yaogan 43 Group 02Launch Complex 3 (LC-3/LA-1)Low Earth OrbitSuccess
2024-08-16Long March 4B | Yaogan 43 Group 01Launch Complex 3 (LC-3/LA-1)Low Earth OrbitSuccess
2024-07-19Long March 4B | Gaofen-11-05Launch Complex 9Sun-Synchronous OrbitSuccess
2023-04-16Long March 4B | Fengyun-3GLaunch Area 94 (SLS-2 / 603)Low Earth OrbitSuccess
2022-12-27Long March 4B | Gaofen-11-04Launch Complex 9Sun-Synchronous OrbitSuccess
2022-08-04Long March 4B | Terrestrial Ecosystem Carbon Inventory Satellite (TECIS)Launch Complex 9Sun-Synchronous OrbitSuccess
2021-12-10Long March 4B | Shijian 6 Group 05Launch Area 94 (SLS-2 / 603)Sun-Synchronous OrbitSuccess
2021-11-20Long March 4B | Gaofen-11-03Launch Complex 9Sun-Synchronous OrbitSuccess
2021-08-18Long March 4B | Tianhui-2-02Launch Complex 9Sun-Synchronous OrbitSuccess
2021-05-19Long March 4B | Haiyang 2DLaunch Area 94 (SLS-2 / 603)Low Earth OrbitSuccess
2021-04-08Long March 4B | Shiyan-6-03Launch Complex 9Success
2020-09-27Long March 4B | Huanjing 2A, 2BLaunch Complex 9Sun-Synchronous OrbitSuccess
2020-09-21Long March 4B | Haiyang 2CLaunch Area 94 (SLS-2 / 603)Low Earth OrbitSuccess
2020-09-07Long March 4B | Gaofen-11-02Launch Complex 9Sun-Synchronous OrbitSuccess
2020-07-25Long March 4B | Ziyuan-3-03Launch Complex 9Sun-Synchronous OrbitSuccess
2020-07-03Long March 4B | Gaofen MultimodeLaunch Complex 9Sun-Synchronous OrbitSuccess
2019-12-20Long March 4B | CBERS-4ALaunch Complex 9Sun-Synchronous OrbitSuccess
2019-11-03Long March 4B | Gaofen-7 & othersLaunch Complex 9Success
2019-09-12Long March 4B | Ziyuan-2D, Tianyi MV-1, BNU-1Launch Complex 9Success
2019-04-29Long March 4B | Tianhui-2-01Launch Complex 9Sun-Synchronous OrbitSuccess
2018-10-24Long March 4B | Haiyang 2BLaunch Complex 9Sun-Synchronous OrbitSuccess
2018-07-31Long March 4B | Gaofen-11Launch Complex 9Sun-Synchronous OrbitSuccess
2017-06-15Long March 4B | Huiyan (HXMT (Hard X-ray Modulation Telescope))Launch Area 94 (SLS-2 / 603)Low Earth OrbitSuccess
2016-06-29Long March 4B | Shijian 16-02Launch Area 94 (SLS-2 / 603)Success
2016-05-30Long March 4B | Ziyuan 3-02 & ÑuSat-1 & -2 (Fresco and Batata)Launch Complex 9Sun-Synchronous OrbitSuccess
2015-11-08Long March 4B | Yaogan-28Launch Complex 9Success
2015-06-26Long March 4B | Gaofen 8Launch Complex 9Success
2014-12-27Long March 4B | Yaogan-26Launch Complex 9Success
2014-12-07Long March 4B | CBERS-4Launch Complex 9Success
2014-09-08Long March 4B | Yaogan 21 & Tiantuo 2Launch Complex 9Success
2014-08-19Long March 4B | Gaofen 2 & HeweliuszLaunch Complex 9Success
2013-12-09Long March 4B | CBERS-3Launch Complex 9Sun-Synchronous OrbitFailure
2013-10-25Long March 4B | Shijian 16Launch Area 94 (SLS-2 / 603)Success
2012-05-10Long March 4B | Yaogan 14 & Tiantuo 1Launch Complex 9Success
2012-01-09Long March 4B | Ziyuan 3 & VesselSat-2Launch Complex 9Success
2011-12-22Long March 4B | Zi Yuan 1-02CLaunch Complex 7Success
2011-11-09Long March 4B | Yaogan 12 & Tianxun-1Launch Complex 9Sun-Synchronous OrbitSuccess
2011-08-15Long March 4B | Hai Yang 2ALaunch Complex 7Success
2010-10-06Long March 4B | Shijian 6G & Shijian 6HLaunch Complex 7Success
2008-12-15Long March 4B | Yaogan Weixing 5Launch Complex 9Sun-Synchronous OrbitSuccess
2008-10-25Long March 4B | Shi Jian 6E & 6FLaunch Complex 9Low Earth OrbitSuccess
2007-09-19Long March 4B | Zi Yuan 1-2BLaunch Complex 7Low Earth OrbitSuccess
2006-10-23Long March 4B | Shi Jian 6C & 6DLaunch Complex 7Low Earth OrbitSuccess
2004-11-06Long March 4B | Zi Yuan 2-3Launch Complex 7Low Earth OrbitSuccess
2004-09-08Long March 4B | Shi Jian 6A & 6BLaunch Complex 7Low Earth OrbitSuccess
2003-10-21Long March 4B | Zi Yuan 1-2Launch Complex 7Low Earth OrbitSuccess
2002-10-27Long March 4B | Zi Yuan-2 02 xingLaunch Complex 7Sun-Synchronous OrbitSuccess
2002-05-15Long March 4B | Hai Yang 1 & Feng Yun 1DLaunch Complex 7Sun-Synchronous OrbitSuccess
2000-09-01Long March 4B | Zi Yuan-2 01 xingLaunch Complex 7Polar OrbitSuccess
1999-10-14Long March 4B | Zi Yuan 1-1Launch Complex 7Low Earth OrbitSuccess
1999-05-10Long March 4B | Feng Yun 1CLaunch Complex 7Polar OrbitSuccess
2026-10-23Long March 4B | Unknown PayloadLaunch Area 94 (SLS-2 / 603)UnknownScheduled

Specifications from Launch Library 2 by The Space Devs, launch records from Space Index. Derived figures are computed here; see sources and method.

Further reading: Wikipedia