Long March 4B

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Long March 4B
CZ-4B.svg
Long March 4B
FunctionCarrier rocket
ManufacturerSAST
Country of originChina
Size
Height44.1 metres (145 ft)[1]
Diameter3.35 metres (11.0 ft)[2]
Mass249,200 kilograms (549,400 lb)[2]
Stages3
Capacity
Payload to LEO4,200 kilograms (9,300 lb)[3]
Payload to SSO2,800 kilograms (6,200 lb)[3]
Payload to GTO1,500 kilograms (3,300 lb)[3]
Associated rockets
FamilyLong March
DerivativesLong March 4C
Launch history
StatusActive
Launch sites
Total launches31
Successes30
Failures1
First flight10 May 1999
Last flight24 October 2018
First stage
Length27.91 m
Diameter3.35 m
Propellant mass182,000 kg (401,000 lb)
Engines4 YF-21C
Thrust2,961.6 kN (665,800 lbf)
Specific impulse2,550 m/s (260 s)
FuelN2O4 / UDMH
Second stage
Length10.9 m
Diameter3.35 m
Propellant mass52,700 kg (116,200 lb)
Engines1 YF-24C
(1 x YF-22C (Main))
(4 x YF-23C (Vernier))
Thrust742.04 kN (166,820 lbf) (Main)
47.1 kN (10,600 lbf) (Vernier)
Specific impulse2,942 m/s (300.0 s) (Main)
2,834 m/s (289.0 s) (Vernier)
FuelN2O4 / UDMH
Third stage
Length14.79 m
Diameter2.9 m
Propellant mass14,000 kg (31,000 lb)
Engines2 YF-40
Thrust100.85 kN (22,670 lbf)
Specific impulse2,971 m/s (303.0 s)
FuelN2O4 / UDMH

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.

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[edit]

Flight
number
Date and time
(UTC)
Serial
number
Launch site Payload Orbit Result
1 10 May 1999
01:33
4B-Y2 Taiyuan
LA-7
Fengyun 1C
Shijian 5
SSO Success
2 14 October 1999
03:15
4B-Y1 Taiyuan
LA-7
CBERS-1
SACI-1
SSO Success
3 1 September 2000
03:25
4B-Y3 Taiyuan
LA-7
Ziyuan (satellite) II-01 SSO Success
4 15 May 2002
01:50
4B-Y5 Taiyuan
LA-7
Fengyun 1D
HaiYang-1A
SSO Success
5 27 October 2002
03:17
4B-Y6 Taiyuan
LA-7
Ziyuan (satellite) II-02 SSO Success
6 21 October 2003
03:16
4B-Y4 Taiyuan
LA-7
CBERS-2
Chuangxin 1-01
SSO Success
7 8 September 2004
23:14
4B-Y7 Taiyuan
LA-7
Shijian 6A
Shijian 6B
SSO Success
8 6 November 2004
03:10
4B-Y8 Taiyuan
LA-7
Ziyuan (satellite) II-03 SSO Success
9 23 October 2006
23:34
4B-Y16 Taiyuan
LA-7
Shijian 6C
Shijian 6D
SSO Success
10 19 September 2007
03:26
4B-Y17 Taiyuan
LA-7
CBERS-2B SSO Success
11 25 October 2008
01:15
4B-Y22 Taiyuan
LA-9
Shijian 6E
Shijian 6F
SSO Success
12 15 December 2008
03:22
4B-Y20 Taiyuan
LA-9
Yaogan 5 SSO Success
13 6 October 2010
00:49
4B-Y23 Taiyuan
LA-9
Shijian 6G
Shijian 6H
SSO Success
14 15 August 2011
22:57
4B-Y14 Taiyuan
LA-9
HaiYang-2A SSO Success
15 9 November 2011
03:21
4B-Y21 Taiyuan
LA-9
Yaogan 12
Tianxun 1
SSO Success
16 22 December 2011
03:26
4B-Y15 Taiyuan
LA-9
Ziyuan (satellite) I-02C SSO Success
17 9 January 2012
03:17
4B-Y26 Taiyuan
LA-9
Ziyuan III-01
VesselSat-2
SSO Success
18 10 May 2012
07:06
4B-Y12 Taiyuan
LA-9
Yaogan 14
Tiantuo 1
SSO Success
19 25 October 2013
03:50
4B-Y25 Jiuquan
LA-4/SLS-2
Shijian 16-01 LEO Success
20 9 December 2013
03:26
4B-Y10 Taiyuan
LA-9
CBERS-3 SSO Failure
One of the two thrid-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
4B-Y27 Taiyuan
LA-9
Gaofen 2
BRITE-PL2 (Heweliusz)
SSO Success
22 8 September 2014
03:22
4B-Y28 Taiyuan
LA-9
Yaogan 21
Tiantuo 2
SSO Success
23 7 December 2014
03:26
4B-Y32 Taiyuan
LA-9
CBERS-4 SSO Success
24 27 December 2014
03:22
4B-Y29 Taiyuan
LA-9
Yaogan 26 SSO Success
25 26 June 2015
06:22
4B-Y30 Taiyuan
LA-9
Gaofen 8 SSO Success
26 8 November 2015
07:06
4B-Y24 Taiyuan
LA-9
Yaogan 28 SSO Success
27 30 May 2016
03:17
4B-Y33 Taiyuan
LA-9
Ziyuan III-02
ÑuSat-1/-2
SSO Success
28 29 June 2016
03:21
4B-Y35 Jiuquan
LA-4/SLS-2
Shijian 16-02 LEO Success
29 15 June 2017
03:00
4B-Y31 Jiuquan
LA-4/SLS-2
HXMT
ÑuSat-3
Zhuhai-1
SSO Success
30 31 July 2018
03:00
4B-Yxx Taiyuan
LA-9
Gaofen 11 SSO Success
31 24 October 2018
22:57
4B-Yxx Taiyuan
LA-9
HaiYang-2B SSO Success[6]
Source: Gunter's Space Page[7]

References[edit]

  1. ^ Brian Harvey. "China in Space: The Great Leap Forward". Retrieved 2016-10-30.
  2. ^ a b Mark Wade. "CZ-4B". Encyclopedia Astronautica. Archived from the original on 2008-03-21. Retrieved 2008-04-27.
  3. ^ a b c Gunter Krebs. "CZ-4B (Chang Zheng-4B)". Gunter's Space Page. Retrieved 2008-04-27.
  4. ^ Boadle, Anthony. "China-Brazil satellite launch fails, likely fell back to Earth". Reuters. Retrieved 10 December 2013.
  5. ^ 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.
  6. ^ Barbosa, Rui C. (24 October 2018). "Chinese Long March 4B lofts Haiyang-2B". NASASpaceFlight.com. Retrieved 24 October 2018.
  7. ^ Krebs, Gunter. "CZ-4B (Chang Zheng-4B)". Gunter's Space Page. Retrieved 25 October 2018.