Long March 4B
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. It was first launched on 10 May 1999, with the FY-1C weather satellite, which would later be used in the 2007 Chinese anti-satellite missile test.
![]() Long March 4B | |
Function | Carrier rocket |
---|---|
Manufacturer | SAST |
Country of origin | China |
Cost per launch | US$50 million (2006) |
Size | |
Height | 44.1 metres (145 ft)[1] |
Diameter | 3.35 metres (11.0 ft)[2] |
Mass | 249,200 kilograms (549,400 lb)[2] |
Stages | 3 |
Capacity | |
Payload to LEO | 4,200 kilograms (9,300 lb)[3] |
Payload to SSO | 2,800 kilograms (6,200 lb)[3] |
Payload to GTO | 1,500 kilograms (3,300 lb)[3] |
Associated rockets | |
Family | Long March |
Derivatives | Long March 4C |
Launch history | |
Status | Active |
Launch sites |
|
Total launches | 37 |
Successes | 36 |
Failures | 1 |
First flight | 10 May 1999 |
Last flight | 25 July 2020 |
First stage | |
Length | 27.91 m |
Diameter | 3.35 m |
Propellant mass | 182,000 kilograms (401,000 lb) |
Engines | 4 YF-21C |
Thrust | 2,961.6 kilonewtons (665,800 lbf) |
Specific impulse | 2,550 metres per second (8,400 ft/s) |
Fuel | N2O4 / UDMH |
Second stage | |
Length | 10.9 m |
Diameter | 3.35 m |
Propellant mass | 52,700 kilograms (116,200 lb) |
Engines | 1 YF-24C (1 x YF-22C (Main)) (4 x YF-23C (Vernier)) |
Thrust | 742.04 kilonewtons (166,820 lbf) (Main) 47.1 kilonewtons (10,600 lbf) (Vernier) |
Specific impulse | 2,942 metres per second (9,650 ft/s) (Main) 2,834 metres per second (9,300 ft/s) (Vernier) |
Fuel | N2O4 / UDMH |
Third stage | |
Length | 14.79 m |
Diameter | 2.9 m |
Propellant mass | 14,000 kilograms (31,000 lb) |
Engines | 2 YF-40 |
Thrust | 100.85 kilonewtons (22,670 lbf) |
Specific impulse | 2,971 metres per second (9,750 ft/s) |
Fuel | N2O4 / UDMH |
The Chang Zheng 4B experienced its only launch failure on 9 December 2013, with the loss of the CBERS-3 satellite.[4]
List of launches
Flight number |
Date and time (UTC) |
Launch site | Payload | Orbit | Result | |
---|---|---|---|---|---|---|
1 | 10 May 1999 01:33 |
Taiyuan LA-7 |
Fengyun 1C Shijian 5 |
SSO | Success | |
2 | 14 October 1999 03:15 |
Taiyuan LA-7 |
CBERS-1 SACI-1 |
SSO | Success | |
3 | 1 September 2000 03:25 |
Taiyuan LA-7 |
Ziyuan II-01 | SSO | Success | |
4 | 15 May 2002 01:50 |
Taiyuan LA-7 |
Fengyun 1D HaiYang-1A |
SSO | Success | |
5 | 27 October 2002 03:17 |
Taiyuan LA-7 |
Ziyuan II-02 | SSO | Success | |
6 | 21 October 2003 03:16 |
Taiyuan LA-7 |
CBERS-2 Chuangxin 1-01 |
SSO | Success | |
7 | 8 September 2004 23:14 |
Taiyuan LA-7 |
Shijian 6A Shijian 6B |
SSO | Success | |
8 | 6 November 2004 03:10 |
Taiyuan LA-7 |
Ziyuan II-03 | SSO | Success | |
9 | 23 October 2006 23:34 |
Taiyuan LA-7 |
Shijian 6C Shijian 6D |
SSO | Success | |
10 | 19 September 2007 03:26 |
Taiyuan LA-7 |
CBERS-2B | SSO | Success | |
11 | 25 October 2008 01:15 |
Taiyuan LA-9 |
Shijian 6E Shijian 6F |
SSO | Success | |
12 | 15 December 2008 03:22 |
Taiyuan LA-9 |
Yaogan 5 | SSO | Success | |
13 | 6 October 2010 00:49 |
Taiyuan LA-9 |
Shijian 6G Shijian 6H |
SSO | Success | |
14 | 15 August 2011 22:57 |
Taiyuan LA-9 |
HaiYang-2A | SSO | Success | |
15 | 9 November 2011 03:21 |
Taiyuan LA-9 |
Yaogan 12 Tianxun 1 |
SSO | Success | |
16 | 22 December 2011 03:26 |
Taiyuan LA-9 |
Ziyuan I-02C | SSO | Success | |
17 | 9 January 2012 03:17 |
Taiyuan LA-9 |
Ziyuan III-01 VesselSat-2 |
SSO | Success | |
18 | 10 May 2012 07:06 |
Taiyuan LA-9 |
Yaogan 14 Tiantuo 1 |
SSO | Success | |
19 | 25 October 2013 03:50 |
Jiuquan LA-4/SLS-2 |
Shijian 16-01 | LEO | Success | |
20 | 9 December 2013 03:26 |
Taiyuan LA-9 |
CBERS-3 | SSO | Failure | |
One of the two third-stage engines shut down prematurely, so that the satellite failed to reach orbit. The cause was traced to foreign debris that blocked the engine's fuel intake.[5] | ||||||
21 | 19 August 2014 03:15 |
Taiyuan LA-9 |
Gaofen 2 BRITE-PL2 (Heweliusz) |
SSO | Success | |
22 | 8 September 2014 03:22 |
Taiyuan LA-9 |
Yaogan 21 Tiantuo 2 |
SSO | Success | |
23 | 7 December 2014 03:26 |
Taiyuan LA-9 |
CBERS-4 | SSO | Success | |
24 | 27 December 2014 03:22 |
Taiyuan LA-9 |
Yaogan 26 | SSO | Success | |
25 | 26 June 2015 06:22 |
Taiyuan LA-9 |
Gaofen 8 | SSO | Success | |
26 | 8 November 2015 07:06 |
Taiyuan LA-9 |
Yaogan 28 | SSO | Success | |
27 | 30 May 2016 03:17 |
Taiyuan LA-9 |
Ziyuan 3-02 ÑuSat-1/-2 |
SSO | Success | |
28 | 29 June 2016 03:21 |
Jiuquan LA-4/SLS-2 |
Shijian 16-02 | LEO | Success | |
29 | 15 June 2017 03:00 |
Jiuquan, LA-4/SLS-2 |
HXMT ÑuSat-3 Zhuhai-1 |
SSO | Success | |
30 | 31 July 2018 03:00 |
Taiyuan LA-9 |
Gaofen 11 | SSO | Success | |
31 | 24 October 2018 22:57 |
Taiyuan LA-9 |
HaiYang-2B | SSO | Success[6] | |
32 | 29 April 2019 22:52 |
Taiyuan LA-9 |
Tianhui-2-01 A/B | SSO | Success | |
33 | 12 September 2019 03:26 |
Taiyuan LA-9 |
Ziyuan I-02D | SSO | Success | |
34 | 3 November 2019 03:22 |
Taiyuan LA-9 |
Gaofen 7 | SSO | Success | |
35 | 20 December 2019 03:22 |
Taiyuan LA-9 |
CBERS-4A ETRSS-1 |
SSO | Success | |
36 | 3 July 2020 03:10 |
Taiyuan LA-9 |
Gaofen BY-2 |
SSO | Success | |
37 | 25 July 2020 03:13 |
Taiyuan, LA-9 |
Ziyuan 3-03 Tianqi 10 Lobster Eye 1 |
SSO | Success | |
Source: Gunter's Space Page[7] |
gollark: I could do that, but I'm busy.
gollark: ++remind 1h inolementbtbr
gollark: Good idea, I didn't think of that.
gollark: From Discord.
gollark: Excessive webhook activity and apioids in Discord.py.
References
- Brian Harvey (2013). China in Space: The Great Leap Forward. Springer Science & Business Media. p. 96. ISBN 978-1-4614-5043-6.
- Mark Wade. "CZ-4B". Encyclopedia Astronautica. Archived from the original on 21 March 2008. Retrieved 27 April 2008.
- Gunter Krebs. "CZ-4B (Chang Zheng-4B)". Gunter's Space Page. Retrieved 27 April 2008.
- Boadle, Anthony. "China-Brazil satellite launch fails, likely fell back to Earth". Reuters. Retrieved 10 December 2013.
- de Selding, Peter B. (3 March 2014). "China Great Wall Pins December Long March Launch Failure on Fuel-line Clog". SpaceNews. Retrieved 10 August 2015.
- Barbosa, Rui C. (24 October 2018). "Chinese Long March 4B lofts Haiyang-2B". NASASpaceFlight.com. Retrieved 24 October 2018.
- Krebs, Gunter. "CZ-4B (Chang Zheng-4B)". Gunter's Space Page. Retrieved 25 October 2018.
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