SJ-11 (original) (raw)

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SJ-11

SJ-11-04
Credit: Manufacturer Image

Chinese military surveillance satellite constellation. Launched from Jiuquan by the CZ-2C launch vehicle into 690 km, 98.7 deg inclination sun synchronous orbits from 2009. Reported to carry an infrared tracking system, part of a missile-launch early warning / tracking system. Built by Dongfanghong Satellite Co., China.

Status: Operational 2009. First Launch: 2009-11-12. Last Launch: 2014-10-27. Number: 8 .

More at: SJ-11.

Family: Surveillance. Country: China. Launch Vehicles: Chang Zheng 2C. Launch Sites: Jiuquan SLS-2. Bibliography: 13098.

2009 November 12 - . 02:45 GMT - . Launch Site: Jiuquan. LV Family: CZ. Launch Vehicle: Chang Zheng 2C.

SJ-11-01 - . Nation: China. Agency: SISE. Class: Surveillance. Type: Early warning satellite. Spacecraft: SJ-11. USAF Sat Cat: 36088 . COSPAR: 2009-061A. Apogee: 705 km (438 mi). Perigee: 688 km (427 mi). Inclination: 98.30 deg. Period: 98.70 min. Experimental Satellite, believed to carry infrared surveillance system sensors..

2011 July 6 - . 04:28 GMT - . Launch Site: Jiuquan. LV Family: CZ. Launch Vehicle: Chang Zheng 2C.

SJ-11-03 - . Nation: China. Agency: SISE. Class: Surveillance. Type: Early warning satellite. Spacecraft: SJ-11. USAF Sat Cat: 37730 . COSPAR: 2011-030A. Apogee: 702 km (436 mi). Perigee: 691 km (429 mi). Inclination: 98.20 deg. Period: 98.70 min. Military satellite, believed to be equipped with infrared sensors, perhaps for ballistic missile launch detection..

2011 July 29 - . 07:42 GMT - . Launch Site: Jiuquan. LV Family: CZ. Launch Vehicle: Chang Zheng 2C.

SJ-11-02 - . Nation: China. Agency: SISE. Class: Surveillance. Type: Early warning satellite. Spacecraft: SJ-11. USAF Sat Cat: 37765 . COSPAR: 2011-039A. Apogee: 705 km (438 mi). Perigee: 688 km (427 mi). Inclination: 98.10 deg. Period: 98.70 min. Believed to carry infrared surveillance system sensors..

2011 August 18 - . 09:28 GMT - . Launch Site: Jiuquan. LV Family: CZ. Launch Vehicle: Chang Zheng 2C. FAILURE: Second stage vernier engine suffered a mechanical failure.. Failed Stage: 2.

SJ-11-04 - . Nation: China. Agency: SISE. Class: Surveillance. Type: Early warning satellite. Spacecraft: SJ-11. Fourth satellite of the SJ-11 infrared surveillance system failed to reach orbit when the second stage vernier engine suffered a mechanical failure..

2013 July 15 - . 09:27 GMT - . Launch Site: Jiuquan. Launch Pad: xxx. LV Family: CZ. Launch Vehicle: Chang Zheng 2C.

SJ-11-05 - . Nation: China. Class: Surveillance. Type: Early warning satellite. Spacecraft: SJ-11. USAF Sat Cat: 39202 . COSPAR: 2013-035A. Apogee: 702 km (436 mi). Perigee: 687 km (426 mi). Inclination: 98.15 deg. Period: 98.66 min. Suspected infrared-telescope-equipped missile early warning satellite; replaces the fourth spacecraft was lost in a launch failure in 2011..

2014 March 31 - . 02:58 GMT - . Launch Site: Jiuquan. Launch Complex: Jiuquan SLS-2. LV Family: CZ. Launch Vehicle: Chang Zheng 2C.

SJ-11-06 - . Nation: China. Class: Surveillance. Type: Surveillance satellite. Spacecraft: SJ-11. USAF Sat Cat: 39624 . COSPAR: 2014-014A. Apogee: 704 km (437 mi). Perigee: 688 km (427 mi). Inclination: 98.25 deg. Period: 98.68 min. Sixth satellite in China's Shi Jian 11 constellation, replacing SJ11-01 in that orbital slot. The SJ11 satellites were rumoured to carry infrared sensors of some kind..

2014 September 28 - . 05:13 GMT - . Launch Site: Jiuquan. LV Family: CZ. Launch Vehicle: Chang Zheng 2C.

SJ-11-07 - . Nation: China. Class: Surveillance. Type: Surveillance satellite. Spacecraft: SJ-11. USAF Sat Cat: 40261 . COSPAR: 2014-059A. Apogee: 700 km (430 mi). Perigee: 684 km (425 mi). Inclination: 98.10 deg. Period: 98.61 min. Seventh satellite in the Shi Jian 11 constellation, thought perhaps to be used for infrared missile tracking and early warning..

2014 October 27 - . 06:59 GMT - . Launch Site: Jiuquan. LV Family: CZ. Launch Vehicle: Chang Zheng 2C.

SJ-11-08 - . Nation: China. Class: Surveillance. Type: Surveillance satellite. Spacecraft: SJ-11. USAF Sat Cat: 40286 . COSPAR: 2014-066A. Apogee: 700 km (430 mi). Perigee: 681 km (423 mi). Inclination: 98.25 deg. Period: 98.58 min. Eighth and final satellite in the Shi Jian 11 series, believed to be a military surveillance satellite of some kind. Sun synchronous orbit; 1315 GMT local time of the descending node..

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