Long March 4B
Long March family
· built by China Aerospace Science and Technology Corporation
· maiden flight 1999-05-10
Profile data last updated: 2026-08-15T20:08:04.839063+00:00 | 7531-09-01
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.
Specifications
44.1 mLength
3.35 mDiameter
249 tLaunch mass
3Stages
2961 kNLiftoff thrust
Payload Capacity
4200 kgTo LEO
1500 kgTo GTO
Lifetime Launch Record
As reported by Launch Library 2 across this rocket's entire history, not just the launches tracked on this site.
57Total launches
56Successful
1Failed
0Upcoming
Launches Tracked on This Site
57In our archive
98.2%Success rate
May 10, 1999 01:33 UTCEarliest tracked
Jul 01, 2026 23:46 UTCMost recent
| Mission | Date | Status |
|---|---|---|
| Long March 4B | Haiyang 2E | Jul 01, 2026 23:46 UTC | Success |
| Long March 4B | Tianhui 7 | Dec 30, 2025 04:12 UTC | Success |
| Long March 4B | Ziyuan-3-04 | Dec 16, 2025 03:17 UTC | Success |
| Long March 4B | Yaogan 47 | Dec 09, 2025 03:41 UTC | Success |
| Long March 4B | Shijian 26 | May 29, 2025 04:12 UTC | Success |
| Long March 4B | Haiyang 4-01 | Nov 13, 2024 22:42 UTC | Success |
| Long March 4B | Yaogan 43 Group 02 | Sep 03, 2024 01:22 UTC | Success |
| Long March 4B | Yaogan 43 Group 01 | Aug 16, 2024 07:35 UTC | Success |
| Long March 4B | Gaofen-11-05 | Jul 19, 2024 03:03 UTC | Success |
| Long March 4B | Fengyun-3G | Apr 16, 2023 01:36 UTC | Success |
| Long March 4B | Gaofen-11-04 | Dec 27, 2022 07:37 UTC | Success |
| Long March 4B | Terrestrial Ecosystem Carbon Inventory Satellite (TECIS) | Aug 04, 2022 03:08 UTC | Success |
| Long March 4B | Shijian 6 Group 05 | Dec 10, 2021 00:11 UTC | Success |
| Long March 4B | Gaofen-11-03 | Nov 20, 2021 01:51 UTC | Success |
| Long March 4B | Tianhui-2-02 | Aug 18, 2021 22:32 UTC | Success |