Yaogan

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Yaogan (Chinese: 遥感卫星; pinyin: Yáogǎn wèixīng; lit.: 'Remote Sensing Satellite') is a series of Chinese reconnaissance satellites launched in the early 21st century.

Chinese media describe the satellites as intended for "scientific experiments, land survey, crop yield assessment, and disaster monitoring". Western analysts suspect that they are also used for military purposes.[1] Analysts believe that each satellite employs either optical or synthetic aperture radar (SAR) sensors and that the SAR satellites are of the Jian Bing-5 series.[2]

The SAR satellite was developed by the Shanghai Academy of Space Flight Technology (SAST). The electro-optical digital imaging satellite was developed by the China Academy of Space Technology (CAST). It is carried into space atop a Chang Zheng (Long March) rocket.[3]

Yaogan satellites have been launched from both the Taiyuan Satellite Launch Center in China's northern Shanxi province and the Jiuquan Satellite Launch Center in China's northwestern Gansu province.[4]

Launches[edit]

Yaogan 1 is believed to have broken up around February 4, 2010 almost four years after it was launched. Because of the small number of pieces and low orbital speeds, it was likely due to an internal explosion, not a high-speed collision.[5]

Satellite Name Military
designation
Launch
date
Believed
type
Approximate orbit NORAD
ID
COSPAR
designator
Contractor Launch site Launcher
Yaogan 1 JB-5-1 April 27, 2006 SAR 635–637 km

97.9 degrees

29092 2006-015A SAST Taiyuan Long March 4B
Yaogan 2 JB-6-1 May 25, 2007 Optical 639–663 km

97.9 degrees

31490 2007-019A CAST Jiuquan Long March 2D
Yaogan 3 JB-5-2 Nov. 12, 2007 SAR 635–637 km

97.8 degrees

32289 2007-055A SAST Taiyuan Long March 4C
Yaogan 4 JB-6-2 Dec. 1, 2008 Optical 642–660 km

97.9 degrees

33446 2008-061A CAST Jiuquan Long March 2D
Yaogan 5 JB-10-1 Dec. 15, 2008 Optical 494–501 km

97.3 degrees

33456 2008-064A CAST Taiyuan Long March 4B
Yaogan 6 JB-7-1 April 22, 2009 SAR 518–519 km

97.6 degrees

34839 2009-021A SAST Taiyuan Long March 2C
Yaogan 7 JB-6-3 Dec. 9, 2009 Optical 630–666 km

97.8 degrees

36110 2009-069A CAST Jiuquan Long March 2D
Yaogan 8 JB-9-1 Dec.15, 2009 Optical 1200–1212 km

100.5 degrees

36121 2009-072A SAST Taiyuan Long March 4C
Yaogan

9A, 9B, 9C

JB-8-1 March 5, 2010 Probable ELINT 1089–1107 km

63.4 degrees
(Orbit of Yaogan 9C)

36413
36414
36415
CAST Jiuquan Long March 4C
Yaogan 10 JB-5-3 Aug. 10, 2010 SAR 629–627 km

97.8 degrees

36834 2010-038A SAST Taiyuan Long March 4C
Yaogan 11 JB-6-4 Sept. 22, 2010 Optical 670–625 km

98.0 degrees

37165 2010-047A CAST Jiuquan Long March 2D
Yaogan 12 JB-10-2 Nov. 9, 2011 Optical 479–495 km

97.3 degrees

37875 2011-066B CAST Taiyuan Long March 4B
Yaogan 13 JB-7-2 Nov. 30, 2011 SAR 502–504 km

97.4 degrees

37941 2011-072A SAST Taiyuan Long March 2C
Yaogan 14 JB-11-1 May 10, 2012 Optical 471–474 km

97.3 degrees

38257 2012-021A CAST Taiyuan Long March 4B
Yaogan 15 JB-9-2 May 29, 2012 Optical 1198–1204 km

100.2 degrees

38354 2012-029A SAST Taiyuan Long March 4C
Yaogan

16A, 16B, 16C

JB-8-2 Nov. 25, 2012 Probable ELINT 1085–1096 km

63.4 degrees

39011
39012
39013
CAST Jiuquan Long March 4C
Yaogan

17A, 17B, 17C

JB-8-3 Sept. 1, 2013 Probable ELINT 1060–1119 km

63.4 degrees

39239
39240
39241
SAST Jiuquan Long March 4C
Yaogan 18 JB-7-3 Oct. 29, 2013 SAR 509 km

97.5 degrees

39363 2013-059A SAST Taiyuan Long March 2C
Yaogan 19 JB-9-3 Nov. 20, 2013 Optical 1119–1204 km

100.4 degrees

39410 2013-065A SAST Taiyuan Long March 4C
Yaogan

20A, 20B, 20C

JB-8-4 Aug. 9, 2014 Probable ELINT 1086–1092 km

63.4 degrees

40109
40110
40111
CAST Jiuquan Long March 4C
Yaogan 21 JB-10-3 Sept. 8, 2014 Optical 481–492 km

97.4 degrees

40143 2014-053A CAST Taiyuan Long March 4B
Yaogan 22 JB-9-4 Oct. 20, 2014 Optical 1198–1207 km

100.3 degrees

40275 2014-063A SAST Taiyuan Long March 4C
Yaogan 23 JB-7-4 Nov. 14, 2014 SAR 510–514 km

97.3 degrees

40305 014-071A SAST Taiyuan Long March 2C
Yaogan 24 JB 6-5 Nov. 20, 2014 Optical 629–654 km

97.9 degrees

40310 2014-072A CAST Jiuquan Long March 2D
Yaogan

25A, 25B, 25C

JB-8-5 Dec. 10, 2014 Probable ELINT 1091–1098 km

63.4 degrees

40338
40339
40340
CAST Jiuquan Long March 4C
Yaogan 26 JB-12-1 Dec. 27, 2014 Optical 482–488 km

97.4 degrees

40362 2014-088A CAST Taiyuan Long March 4B
Yaogan 27 JB-9-5 Aug. 27, 2015 Optical 1201–1214 km

100.4 degrees

40878 2015-040A SAST Taiyuan Long March 4C
Yaogan 28 JB-11-2 Nov. 8, 2015 Optical 476–490 km

97.3 degrees

41026 2015-064A CAST Taiyuan Long March 4B
Yaogan 29 November 26, 2015 SAR 635–636 km

97.9 degrees

41038 2015-069A SAST Taiyuan Long March 4C
Yaogan 30 JB 6-6 May 15, 2016 Optical 634–664 km

98.0 degrees

41473 2016-029A CAST Jiuquan Long March 2D
Yaogan

30A, 30B, 30C

Sept. 29, 2017 Probable ELINT 602–611 km

35 degrees

42945
42946
42947
Jiuquan Long March 2C
Yaogan

30D, 30E, 30F

Nov. 24, 2017 Probable electro-optical 603–610 km

35 degrees

43028
43029
43030
Jiuquan Long March 2D
Yaogan

30G, 30H, 30J

Dec. 25, 2017 Probable ELINT 602–610 km

35 degrees

43081
43082
43083
Xichang Long March 2C
Yaogan

30K, 30L, 30M

Jan. 25, 2018 Probable ELINT 602–610 km

35 degrees

43170
43171 43172
Xichang Long March 2C
Yaogan

31A,

31B, 31C

April 10, 2018 Probable ELINT 1085–1110 km

63.4 degrees

43275
43276
43277
Jiuquan Long March 4C
Yaogan

32A, 32B

Oct. 9, 2018 Probable ELINT 43642
43643
Jiuquan Long March 2C/YZ-1S
Yaogan 33 May 23, 2019 (Launch Failure) Taiyuan Long March 4C
Yaogan

30N, 30Q, 30P

July 25, 2019 44449

44451

44450

Xichang Long March 2C
Yaogan-30

Group 6 #1-3

March 23, 2020 Xichang Long March 2C
Table data sourced from previously cited references, "CalSky". Web site. CalSky.com. Retrieved 2016-11-09. and "Real Time Satellite Tracking". Web site. N2YO.com. Retrieved 2016-11-09.

See also[edit]

References[edit]

  1. ^ Barbosa, Rui C. (April 22, 2009). "Chinese launch again with YaoGan Weixing-6 remote sensing satellite". News article. NasaSpaceflight.com. Retrieved 2009-04-23.
  2. ^ "YaoGan Weixing / Remote Sensing Satellites". Web article. SinoDefence.com. February 20, 2009. Retrieved 2009-04-24.
  3. ^ "China launches "Yaogan VI" remote-sensing satellite". News article. Xinhua. April 22, 2009. Retrieved 2009-04-24.
  4. ^ "China Launches Yaogan-4 Satellite". Magazine article. Asian Surveying and Mapping. December 2, 2008. Retrieved 2009-04-24.
  5. ^ "Yaogan 1 Erupts". Arms Control Wonk. February 11, 2010. Retrieved 2010-02-11.