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Shijian - Technology Development satellites


Tyneside, UK
2022 Jun 25
Saturday, Day 176

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The table lists all launches by China under the name Shijian together with any other satellites carried on the same launch vehicle. They have used a range of different launch vehicle types and have been launched from Jiuquan, Taiyuan and Xichang.

There purposes seem to be a range of technology demonstration and technology application missions with a leaning towards rendezvous, docking and grappling experiments. Shijian translates to English as "Practice".

They operate in a range of orbits from Sun-synchronous LEO to GEO.

1971-018
CZ 1
Jiuquan Space Centre
1971 Mar 3, 12:02
Shijian 1 (Practice 1)
1971-018A
5007
Re-entered - 1979 Jun 17
Life 3028 days
Satellite for measuring radiation and the flux of protons and electrons in LEO. Also equipped to measure solar x-ray emissions. Operated from launch to re-entry (eight years).

epoch (UTC)         
s-m axis
( km )
ecc    perigee
( km )
apogee
( km )
period
( min )
incl 
( ° )
ω  
( ° )
1971 Mar 04, 05:0674260.10512681828106.1469.90191


1981-093
Feng Bao 1
Jiuquan Space Centre
1981 Sep 19, 21:28
Shijian 2B (Practice 2B)
1981-093A
12842
Re-entered - 1981 Sep 26
Life 7 days
Launched alongside Shijian 2 - inflated balloon with radio-reflective surface, used for radar calibration.

epoch (UTC)         
s-m axis
( km )
ecc    perigee
( km )
apogee
( km )
period
( min )
incl 
( ° )
ω  
( ° )
1981 Sep 21, 08:4271930.07982401389101.1859.47149
Shijian 2A (Practice 2A)
1981-093B
12843
Re-entered - 1982 Oct 6
Life 382 days
Launched alongside Shijian 2, equipped with radio beacons used to measure ionospheric electron density (topside sounding).

epoch (UTC)         
s-m axis
( km )
ecc    perigee
( km )
apogee
( km )
period
( min )
incl 
( ° )
ω  
( ° )
1981 Sep 21, 09:0873020.09432351612103.4959.47150
Shijian 2 (Practice 2)
1981-093D
12845
Re-entered - 1982 Aug 17
Life 332 days
Satellite to study the micrometeoroid and debris environment in LEO and measure electromagnetic radiation.

epoch (UTC)         
s-m axis
( km )
ecc    perigee
( km )
apogee
( km )
period
( min )
incl 
( ° )
ω  
( ° )
1981 Sep 21, 09:0672970.09382351603103.3959.47149


1994-010
CZ 3A
Xichang Space Centre
1994 Feb 8, 08:33
Shijian 4 (Practice 4)
1994-010A
22996
in space
Equipped with sensors to study the radiation and magnetic environment in geosynchronous transfer orbit.

epoch (UTC)         
s-m axis
( km )
ecc    perigee
( km )
apogee
( km )
period
( min )
incl 
( ° )
ω  
( ° )
1994 Feb 19, 15:15245470.732718536154637.9228.63187


1999-025
CZ 4B
Taiyuan Space Centre
1999 May 10, 01:33
Fengyun 1C (Largest remaining fragment)
1999-025A
25730
in space
Meteorological imaging satellite. Destroyed by Chinese-launched anti-satellite missile 2007 January 11.

epoch (UTC)         
s-m axis
( km )
ecc    perigee
( km )
apogee
( km )
period
( min )
incl 
( ° )
ω  
( ° )
Desc Node
Local Time
2007 Feb 21, 01:0872460.0022853884102.3198.689204:39
Shijian 5 (Practice 5)
1999-025B
25731
in space
Technology demonstration satellite for systems to be used in future satellite design.

epoch (UTC)         
s-m axis
( km )
ecc    perigee
( km )
apogee
( km )
period
( min )
incl 
( ° )
ω  
( ° )
Desc Node
Local Time
1999 May 10, 16:1872340.0013846865102.0598.7830808:36
1999 May 12, 10:5272370.0014849869102.1198.8131708:36
1999 Jun 07, 04:4372350.0017844869102.0798.7923508:35


2004-035
CZ 4B
Taiyuan Space Centre
2004 Sep 8, 23:14
Shijian 6-01A (Practice 6-01A)
2004-035A
28413
in space
One of a pair of Shijian 6 satellites in a dual launch. Reportedly to monitor the space environment but may have been used to develop systems and sensors for a future constellation of Yaogan 31 electronic intelligence gathering satellites.

epoch (UTC)         
s-m axis
( km )
ecc    perigee
( km )
apogee
( km )
period
( min )
incl 
( ° )
ω  
( ° )
Desc Node
Local Time
2004 Sep 11, 23:1069720.000758959996.5697.7433506:20
2006 Oct 26, 20:3969750.001958461096.6297.7231105:56
2013 Aug 22, 08:1469690.001757960396.5197.8133705:31
Shijian 6-01B (Practice 6-01B)
2004-035B
28414
in space
One of a pair of Shijian 6 satellites in a dual launch. Reportedly to monitor the space environment but may have been used to develop systems and sensors for a future constellation of Yaogan 31 electronic intelligence gathering satellites.

epoch (UTC)         
s-m axis
( km )
ecc    perigee
( km )
apogee
( km )
period
( min )
incl 
( ° )
ω  
( ° )
Desc Node
Local Time
2004 Sep 13, 15:3069760.000659360296.6497.7434806:20
2006 Oct 25, 04:4269750.000659260196.6297.7330805:56
2013 Aug 22, 08:1869700.000658859696.5197.8133205:32


2005-024
CZ 2D
Jiuquan Space Centre
2005 Jul 5, 22:40
Shijian 7 (Practice 7)
2005-024A
28737
in space
Technology demonstration satellite for sun-synchronous orbit. Used as rendezvous target by Shiyan 7 in 2013.

epoch (UTC)         
s-m axis
( km )
ecc    perigee
( km )
apogee
( km )
period
( min )
incl 
( ° )
ω  
( ° )
Desc Node
Local Time
2005 Jul 06, 09:1869370.001754757095.8397.5832804:59
2005 Jul 27, 10:1969370.001554856995.8397.5825204:58
2005 Jul 28, 11:5369400.001055556895.8997.5826404:58
2005 Jul 30, 10:1769420.000855957095.9497.5727604:58


2006-035
CZ 2C
Jiuquan Space Centre
2006 Sep 9, 07:00
Shijian 8 (Practice 8)
2006-035A
29385
Re-entered - 2006 Nov 1
Life 53 days Returned to Earth
Recoverable science satellite carrying 215 kg of plant seeds for exposure to the space environment. Following retro-fire and re-entry, the descent module landed in the Sichuan province of China and was recovered.

epoch (UTC)         
s-m axis
( km )
ecc    perigee
( km )
apogee
( km )
period
( min )
incl 
( ° )
ω  
( ° )
2006 Sep 09, 20:4766910.020217844890.7962.99144


2006-046
CZ 4B
Taiyuan Space Centre
2006 Oct 23, 23:34
Shijian 6-02A (Practice 6-02A)
2006-046A
29505
in space
One of a pair of Shijian 6 satellites in a dual launch. Reportedly to monitor the space environment but may have been used to develop systems and sensors for a future constellation of Yaogan 31 electronic intelligence gathering satellites.

epoch (UTC)         
s-m axis
( km )
ecc    perigee
( km )
apogee
( km )
period
( min )
incl 
( ° )
ω  
( ° )
Desc Node
Local Time
2006 Oct 25, 00:4869750.000459460096.6297.714706:40
2008 Oct 29, 19:0769740.000459359996.6097.6910906:08
2013 Aug 22, 07:1569690.000558859496.5197.755705:08
Shijian 6-02B (Practice 6-02B)
2006-046B
29506
in space
One of a pair of Shijian 6 satellites in a dual launch. Reportedly to monitor the space environment but may have been used to develop systems and sensors for a future constellation of Yaogan 31 electronic intelligence gathering satellites.

epoch (UTC)         
s-m axis
( km )
ecc    perigee
( km )
apogee
( km )
period
( min )
incl 
( ° )
ω  
( ° )
Desc Node
Local Time
2006 Oct 25, 13:4269770.000359660196.6697.718206:40
2008 Oct 29, 19:0469760.000359660096.6597.6913706:06
2013 Aug 22, 07:0469720.000459159696.5697.769805:03


2008-053
CZ 4B
Taiyuan Space Centre
2008 Oct 25, 01:15
Shijian 6-03A (Practice 6-03A)
2008-053A
33408
in space
One of a pair of Shijian 6 satellites in a dual launch. Reportedly to monitor the space environment but may have been used to develop systems and sensors for a future constellation of Yaogan 31 electronic intelligence gathering satellites.

epoch (UTC)         
s-m axis
( km )
ecc    perigee
( km )
apogee
( km )
period
( min )
incl 
( ° )
ω  
( ° )
Desc Node
Local Time
2008 Oct 26, 04:0469710.001858060596.5397.7429708:21
2010 Oct 11, 22:0769710.001558360396.5497.658907:51
2013 Aug 22, 07:5869710.001758160596.5497.5721006:19
2021 Dec 09, 22:1269610.001857159696.3497.8318004:15
Shijian 6-03B (Practice 6-03B)
2008-053B
33409
in space
One of a pair of Shijian 6 satellites in a dual launch. Reportedly to monitor the space environment but may have been used to develop systems and sensors for a future constellation of Yaogan 31 electronic intelligence gathering satellites.

epoch (UTC)         
s-m axis
( km )
ecc    perigee
( km )
apogee
( km )
period
( min )
incl 
( ° )
ω  
( ° )
Desc Node
Local Time
2008 Oct 26, 04:0469720.001658260596.5597.7429608:21
2010 Oct 11, 01:4469710.001958060696.5497.658107:51
2013 Aug 22, 07:5269680.001657860196.4797.5618806:23
2021 Dec 09, 21:4169600.001757059496.3197.8114204:18


2009-061
CZ 2C
Jiuquan Space Centre
2009 Nov 12, 02:45
Shijian 11-01 (Practice 11-01)
2009-061A
36088
in space
Reported as an "experimental satellite". The orbit, and images of one of its predecessors, indicate that it has an Earth observation rôle.

epoch (UTC)         
s-m axis
( km )
ecc    perigee
( km )
apogee
( km )
period
( min )
incl 
( ° )
ω  
( ° )
Desc Node
Local Time
2009 Nov 12, 18:3970750.001069070398.7098.2827409:01


2010-027
CZ 2D
Jiuquan Space Centre
2010 Jun 15, 01:39
Shijian 12 (Practice 12)
2010-027A
36596
in space
Experimental satellite. Observers reported that, starting Aug 20, it made several approches to Shijian VI-04A.

epoch (UTC)         
s-m axis
( km )
ecc    perigee
( km )
apogee
( km )
period
( min )
incl 
( ° )
ω  
( ° )
Desc Node
Local Time
2010 Jun 15, 09:0869640.001657559796.4097.7022607:57
2010 Jun 24, 15:0269680.001657960196.4897.6617507:57


2010-051
CZ 4B
Taiyuan Space Centre
2010 Oct 6, 00:49
Shijian 6-04A (Practice 6-04A)
2010-051A
37179
in space
One of a pair of Shijian 6 satellites in a dual launch. Reportedly to monitor the space environment but may have been used to develop systems and sensors for a future constellation of Yaogan 31 electronic intelligence gathering satellites.

epoch (UTC)         
s-m axis
( km )
ecc    perigee
( km )
apogee
( km )
period
( min )
incl 
( ° )
ω  
( ° )
Desc Node
Local Time
2010 Oct 16, 17:4369740.001358760696.6197.7627707:55
2013 Aug 22, 08:5069710.001658260496.5497.656507:12
2021 Dec 09, 21:1769630.003056460596.3797.744904:24
Shijian 6-04B (Practice 6-04B)
2010-051B
37180
in space
One of a pair of Shijian 6 satellites in a dual launch. Reportedly to monitor the space environment but may have been used to develop systems and sensors for a future constellation of Yaogan 31 electronic intelligence gathering satellites.

epoch (UTC)         
s-m axis
( km )
ecc    perigee
( km )
apogee
( km )
period
( min )
incl 
( ° )
ω  
( ° )
Desc Node
Local Time
2010 Oct 08, 02:1369750.001258860596.6197.7632707:55
2013 Aug 22, 08:2769710.001458460396.5597.657907:11
2021 Dec 09, 21:5969650.001357859696.4197.755804:22


2011-030
CZ 2C
Jiuquan Space Centre
2011 Jul 6, 04:28
Shijian 11-03 (Practice 11-03)
2011-030A
37730
in space
Reported as an "experimental satellite". Orbit details, taken together with an image showing it as 3-axis stabilised and having downward-facing sensors, indicates that the payload has an Earth observation rôle. Launch was out of sequence indicating there may have been a delay in preparations for SJ-11-02 that eventually went into orbit Jul 29.

epoch (UTC)         
s-m axis
( km )
ecc    perigee
( km )
apogee
( km )
period
( min )
incl 
( ° )
ω  
( ° )
Desc Node
Local Time
2011 Jul 06, 08:5070750.001069070498.7198.2325410:44


2011-039
CZ 2C
Jiuquan Space Centre
2011 Jul 29, 07:42
Shijian 11-02 (Practice 11-02)
2011-039A
37765
in space
Reported as an "experimental satellite". The orbit, and images of one of its predecessors, indicate that it has an Earth observation rôle. Launch was out of sequence (SJ-11-03 later went into orbit Jul 7) indicating that there may have been a delay in completion of manufacturing or testing.

epoch (UTC)         
s-m axis
( km )
ecc    perigee
( km )
apogee
( km )
period
( min )
incl 
( ° )
ω  
( ° )
Desc Node
Local Time
2011 Aug 13, 02:4270750.001268870698.7198.1120513:58


2011-F02 - failed to reach orbit
CZ 2C
Jiuquan Space Centre
2011 Aug 18, 09:28
Shijian 11-04 (Practice 11-04)
Reported as an "experimental satellite". The orbits of its predecessors suggests that the payload has an Earth observation rôle. Sun-synchronous orbit would have had its descending node around 15:50 local time. Destroyed when the launch vehicle second stage failed to ignite. Launch was already delayed by one day but reason not given. Replaced by Shijian 11-05, launched 2013 July 15.


2012-056
CZ 2C
Taiyuan Space Centre
2012 Oct 14, 03:25
Shijian 9A (Practice 9A)
2012-056A
38860
in space
One of a dual-launched complementary pair of space technology development satellites. Testing high precision and high stability control systems based on an ion thruster system, power supply systems and efficient thermal control systems. May also equipped for remote imaging. Catalogue number and designation subject to confirmation.

epoch (UTC)         
s-m axis
( km )
ecc    perigee
( km )
apogee
( km )
period
( min )
incl 
( ° )
ω  
( ° )
Desc Node
Local Time
2012 Oct 18, 16:2770170.002162465497.5098.0032610:30
2012 Oct 19, 08:2670140.002262165297.4498.0032610:30
2012 Oct 20, 05:1370100.001762064497.3598.0032510:30
2012 Oct 21, 07:3170140.001762464897.4498.0032410:30
2012 Oct 22, 21:0470150.001862464997.4597.9931810:30
2012 Oct 23, 11:4270150.001962365197.4698.0031610:30
Shijian 9B (Practice 9B)
2012-056B
38861
in space
One of a dual-launched complementary pair of space technology development satellites. Testing high precision and high stability control systems based on an ion thruster system, power supply systems and efficient thermal control systems. May also equipped for remote imaging. Catalogue number and designation subject to confirmation.

epoch (UTC)         
s-m axis
( km )
ecc    perigee
( km )
apogee
( km )
period
( min )
incl 
( ° )
ω  
( ° )
Desc Node
Local Time
2012 Oct 14, 21:1770140.001762464897.4398.0034710:30
2012 Oct 18, 15:4270150.001962465197.4697.9933210:30


2013-035
CZ 2C
Jiuquan Space Centre
2013 Jul 15, 09:27
Shijian 11-05 (Practice 11-05)
2013-035A
39202
in space
Reported as an "experimental satellite". The intended orbit, and images of one of its predecessors, indicate that it has an Earth observation rôle. Replacement for Shijian 11-04, lost because of a launch vehicle failure 2011 August 2.

epoch (UTC)         
s-m axis
( km )
ecc    perigee
( km )
apogee
( km )
period
( min )
incl 
( ° )
ω  
( ° )
Desc Node
Local Time
2013 Jul 19, 11:3870740.001168870498.7098.1020115:44


2013-037
CZ 4C
Taiyuan Space Centre
2013 Jul 19, 23:37
Shiyan 7 (NORAD "Payload A")
2013-037A
39208
in space
Name to be confirmed: Technology satellite being used in rendezvous, station keeping, and satellite capture tests. Release of a sub-satellite (2013-037J/39357) 2013 Oct 18 and subsequent close- up operations with it may be part of a series of tests aimed at capturing another satellite with a robotic arm.

epoch (UTC)         
s-m axis
( km )
ecc    perigee
( km )
apogee
( km )
period
( min )
incl 
( ° )
ω  
( ° )
Desc Node
Local Time
2013 Jul 20, 05:3770450.000966167398.0898.062506:42
2013 Oct 15, 04:4470450.001066067498.0898.069106:42
2013 Oct 15, 12:5570460.001066067598.1098.068906:42
Chuangxin 3 (NORAD "Payload B")
2013-037B
39209
in space
Name to be confirmed. Satellite involved in rendezvous tests, possibly as a satellite inspector. Following separation from the launch vehicle, it moved about 1750 km ahead of Changxin 3, another satellite carried on the same launch vehicle. It then made two close passes by it Aug 6 and Aug 9. Early on Aug 18, it pulled alongside anther satellite already in orbit, Shijian 7 (2005-024A/28737), and shadowed it at less than 2km for about 48 hrs. It made further approaches to Shijian 7 later in 2013 and during 2014.

epoch (UTC)         
s-m axis
( km )
ecc    perigee
( km )
apogee
( km )
period
( min )
incl 
( ° )
ω  
( ° )
Desc Node
Local Time
2013 Jul 20, 06:0270480.000566767398.1598.064806:42
2013 Aug 09, 10:0570480.000366867298.1598.0630806:42
Shijian 15 (Practice 13/NORAD "Payload C")
2013-037C
39210
in space
Small satellite for the Chinese Academy of Sciences. Before launch there were rumours of a satellite to be used for missile detection. It may be testing sensors for such a mission.

epoch (UTC)         
s-m axis
( km )
ecc    perigee
( km )
apogee
( km )
period
( min )
incl 
( ° )
ω  
( ° )
Desc Node
Local Time
2013 Jul 20, 06:0370470.000666467398.1298.064206:42
2013 Aug 01, 03:5870490.000366967398.1798.074706:42
2013 Aug 02, 04:3170510.000467067598.2098.064006:42
2013 Aug 03, 13:1770530.000267367698.2598.0628906:42
2013 Aug 08, 19:2470510.000367167598.2198.0631106:42
2013 Aug 09, 06:5070300.000165165397.7798.0631906:42
2013 Aug 09, 10:3970430.002364968298.0598.0835706:42
2013 Aug 09, 13:4970490.001066467898.1698.0524806:42
2013 Aug 09, 18:1670480.000366867298.1498.0630906:42
2013 Aug 16, 07:2370470.000666567398.1398.0631006:42
2013 Aug 16, 20:1068840.000650251094.7498.0630106:42
2013 Aug 17, 17:1269660.003256561096.4397.7030606:43
2013 Aug 19, 20:2069660.003256561096.4397.7029906:43
2013 Aug 20, 07:3569610.003256060596.3297.7029706:43
2014 Apr 12, 21:1169590.003155960396.2997.6822706:39
2014 Apr 13, 03:3769770.004656763096.6697.6918706:39
2014 Apr 14, 12:3370100.001961964697.3697.6828006:38
2014 May 09, 04:5569980.004059264897.1097.6917006:35
2014 May 10, 09:3769860.001959562196.8597.6816806:35
2014 May 11, 00:3269730.003656962096.5897.6814506:35
2014 May 13, 04:0369650.003656161296.4197.6712806:35
Shiyan 7 sub-satellite
2013-037J
39357
in space
Released 2013 Oct 18 from Payload A and being used as a tracking/station-keeping target. it may also, on several occasions, have been captured by a manipulator arm aboard Shiyan 7.

epoch (UTC)         
s-m axis
( km )
ecc    perigee
( km )
apogee
( km )
period
( min )
incl 
( ° )
ω  
( ° )
Desc Node
Local Time
2013 Oct 19, 19:5970460.001066167598.1098.057906:42


2013-057
CZ 4B
Jiuquan Space Centre
2013 Oct 25, 03:50
Shijian 16-01 (Practice 16-01)
2013-057A
39358
in space
Mission described as being for "space environment exploration and technological experiments". The inclination is a new one for China.

epoch (UTC)         
s-m axis
( km )
ecc    perigee
( km )
apogee
( km )
period
( min )
incl 
( ° )
ω  
( ° )
2013 Oct 25, 12:5969870.001160161796.8774.98223


2014-014
CZ 2C
Jiuquan Space Centre
2014 Mar 31, 02:46
Shijian 11-06 (Practice 11-06)
2014-014A
39624
in space
Reported as an "experimental satellite". The orbit, and images of one of its predecessors, indicate that it has an Earth observation rôle. Launch time is an estimate based on the local time at the Descending Node and is ±1 minute. China announced a time of 02:58 UTC but it probably represents when the satellite separated from the launch vehicle.

epoch (UTC)         
s-m axis
( km )
ecc    perigee
( km )
apogee
( km )
period
( min )
incl 
( ° )
ω  
( ° )
Desc Node
Local Time
2014 Apr 01, 02:5370740.001268870498.6998.2621209:02


2014-059
CZ 2C
Jiuquan Space Centre
2014 Sep 28, 05:13
Shijian 11-07 (Practice 11-07)
2014-059A
40261
in space
Reported as an "experimental satellite". The orbit, and images of one of its predecessors, indicate that it has an Earth observation rôle. Launch was brought forward from Sep 29 because of forecast high winds in the launch area.

epoch (UTC)         
s-m axis
( km )
ecc    perigee
( km )
apogee
( km )
period
( min )
incl 
( ° )
ω  
( ° )
Desc Node
Local Time
2014 Sep 28, 12:5370740.001368770598.6998.1219811:30


2014-066
CZ 2C
Jiuquan Space Centre
2014 Oct 27, 06:59
Shijian 11-08 (Practice 11-08)
2014-066A
40286
in space
Reported as an "experimental satellite". The orbit, and images of one of its predecessors, indicate that it has an Earth observation rôle.

epoch (UTC)         
s-m axis
( km )
ecc    perigee
( km )
apogee
( km )
period
( min )
incl 
( ° )
ω  
( ° )
Desc Node
Local Time
2014 Oct 27, 09:4370740.001368770598.6998.2220113:15


2016-023
CZ 2D
Jiuquan Space Centre
2016 Apr 5, 17:38
Shijian 10 (Practice 10)
2016-023A
41448
Re-entered - 2016 Apr 18
Life 13 days Returned to Earth
Recoverable science satellite carrying 19 microgravity and biological experiments. The mission was jointly developed by 11 institutes of the China Academy of Sciences, together with six Chinese universities, the European Space Agency and the Japan Aerospace Exploration Agency. Following retro-fire and re-entry, the descent module touched down in the Siziwang Banner of Inner Mongolia (the Shenzhou landing zone) Apr 18 at 08:30 UTC.

epoch (UTC)         
s-m axis
( km )
ecc    perigee
( km )
apogee
( km )
period
( min )
incl 
( ° )
ω  
( ° )
2016 Apr 06, 01:0066290.002623426889.5342.89315
2016 Apr 09, 08:0866280.002523326689.5042.89338
2016 Apr 10, 03:2166340.002523927289.6242.895
2016 Apr 13, 06:1666320.002423827089.5942.9029
2016 Apr 14, 00:0066360.001824627089.6642.8930
2016 Apr 16, 05:5066350.001724526889.6442.8947
2016 Apr 16, 18:5966390.001125326989.7342.9040
Shijian 10 service module
2016-023E
41455
Re-entered - 2016 Jul 1
Life 87 days
Left in orbit by Shijian 10 when it returned to Earth - some of its experiments continued to operate until the chemical battery died. Orbit raised Apr 22 and continued to conduct minor thruster firings until early-May.

epoch (UTC)         
s-m axis
( km )
ecc    perigee
( km )
apogee
( km )
period
( min )
incl 
( ° )
ω  
( ° )
2016 Apr 18, 15:5166390.001225326989.7342.8948
2016 Apr 22, 02:1066380.001125226789.7042.9074
2016 Apr 22, 19:5166590.004125430890.1442.8963


2016-043
CZ 4B
Jiuquan Space Centre
2016 Jun 29, 03:21
Shijian 16-02 (Practice 16-02)
2016-043A
41634
in space
Described as "conducting spacial environment detection and technological experiments". It may actually be an ELINT (electronic intelligence gathering) satellite.

epoch (UTC)         
s-m axis
( km )
ecc    perigee
( km )
apogee
( km )
period
( min )
incl 
( ° )
ω  
( ° )
2016 Jun 30, 01:2469840.001459661696.8175.00233


2016-065
CZ 5 + YZ-2
Wenchang Space Centre
2016 Nov 3, 12:43
Shijian 17 (Practice 17)
2016-065A
41838
in space
Technology demonstration satellite carried on the first flight of the CZ-5 heavy lift launcher. Includes communications equiment and an imaging system to identify orbital debris. It has occupied several different locations around the geosynchronous belt, most of them close to Chinese-owned communications satellites, indicating that Shjian 17's purpose may be monitor the activities of other satellites.

epoch (UTC)         
s-m axis
( km )
ecc    perigee
( km )
apogee
( km )
period
( min )
incl 
( ° )
ω  
( ° )
GEO    
Longitude
2016 Nov 03, 18:15244000.729622035824632.1919.51180
2016 Nov 04, 21:56437310.033335898388091516.880.33148
2016 Nov 11, 17:42422340.000835820358911439.620.76136163° east
2016 Nov 20, 17:21421640.000435768358031436.050.80153163° east
2017 Apr 25, 17:56421660.000935749358261436.160.0731163° east
2017 Apr 27, 21:26421940.000335806358271437.610.0763162° east
2017 May 06, 14:16422190.000335829358531438.870.09197158° east
2017 Jun 21, 09:23421680.000135785357951436.250.18332125° east
2017 Sep 29, 14:02421660.000135785357911436.170.19261125° east
2017 Sep 30, 15:01422180.000135838358431438.840.19224124° east
2017 Oct 10, 20:36421650.000135782357921436.110.21357118° east
2018 Jan 10, 22:37421660.000135785357901436.140.42346118° east
2018 Jan 13, 13:51419510.002435471356741425.180.42342120° east
2018 Jan 25, 11:02421800.006335535360691436.872.249153° east
2018 Jan 26, 23:02420220.001235594356931428.793.9525156° east
2018 Mar 18, 22:49423120.001635867360011443.624.046940° east
2018 May 06, 23:54422010.000235816358301437.954.14114106° east
2018 May 08, 23:24421640.000535767358051436.054.14274106° east
2018 Jun 04, 12:04421670.000935751358261436.194.20204104° east
2018 Jun 06, 21:22422080.000935794358661438.324.20138103° east
2018 Jun 28, 15:04421870.000635783358341437.224.2417694° east
2018 Jun 30, 15:05421650.000335772358011436.094.2523194° east
2018 Jul 17, 23:28421640.000435768358051436.074.2822194° east
2018 Aug 31, 14:59421650.000235777357971436.120.114994° east
2019 Jul 31, 18:15421660.000235779357961436.140.861594° east
2019 Nov 07, 17:12422240.001335793358991439.121.096994° east
2019 Nov 09, 17:58422590.000835848359131440.901.1011691° east
2019 Nov 18, 18:55421650.000235781357931436.120.1417584° east
2019 Nov 19, 22:57421650.000235781357931436.110.1416484° east
2019 Nov 23, 18:58421340.000435738357731434.500.1321885° east
2019 Nov 26, 19:30420700.000535669357151431.250.1216386° east
2019 Dec 18, 17:25421220.000735714357751433.930.07358113° east
2019 Dec 24, 20:24421640.000335773357981436.060.0632115° east
2020 Apr 08, 20:36420480.002835553357871430.150.08240116° east
2020 Apr 09, 15:03419280.000235544355571424.030.08346118° east
2020 Apr 25, 18:08421650.000235777357971436.100.12337163° east
2020 Aug 08, 21:04421650.000435771358021436.090.3636163° east
2020 Aug 09, 14:30422140.000635810358631438.640.3640163° east
2020 Aug 12, 15:09422470.001235817359201440.280.3710161° east
2020 Sep 14, 07:34422000.000735790358531437.880.45314129° east
2020 Oct 07, 16:52421630.000335771358001436.030.50298118° east
2021 Mar 31, 10:32421640.000635760358121436.060.93340118° east


2017-018
CZ 3B
Xichang Space Centre
2017 Apr 12, 11:04
Shijian 13 (Practice 13)
2017-018A
42662
in space
High capacity Chinese comsat covering the mainland and coastal waters. Known as Shijian 13 during its test phase. Expected location 110°.5 east.

epoch (UTC)         
s-m axis
( km )
ecc    perigee
( km )
apogee
( km )
period
( min )
incl 
( ° )
ω  
( ° )
GEO    
Longitude
2017 Apr 12, 17:13273710.758124341744751.1120.96179
2017 Apr 25, 02:24421650.000435768358061436.110.07144111° east


2017-F03 - failed to reach orbit
CZ 5
Wenchang Space Centre
2017 Jul 2, 11:23
Shijian 18 (Practice 18)
Experimental communications satellite aimed at geosynchronous orbit. Lost when a first stage engine of the CZ-5 launch vehicle underperformed so the payload could not reach orbit.


2019-097
CZ 5
Wenchang Space Centre
2019 Dec 27, 12:45
Shijian 20 (Practice 20)
2019-097A
44910
in space
Reportedly a technology demonstration satellite tasked with conducting 84 in-orbit tests and experiments. Onboard equipment is likely related to intelligence-gathering. From 2020 Feb - 2020 Aug, it was co-located with TJS-3 (43874/2018-110A) at 88° east. Carried on the 'return to flight' mission of CZ 5 following its launch failure in 2018.

epoch (UTC)         
s-m axis
( km )
ecc    perigee
( km )
apogee
( km )
period
( min )
incl 
( ° )
ω  
( ° )
GEO    
Longitude
2019 Dec 27, 18:09403050.8373179676741342.1219.40194
2020 Jan 08, 02:48421640.000535763358081436.040.1425115° east
2020 Apr 04, 22:23421670.000735759358181436.200.08248115° east
2020 Apr 05, 21:23419620.000435569355981425.740.08261117° east
2020 Apr 10, 06:11421640.000235777357951436.080.10316125° east
2020 Aug 25, 15:11421670.000935750358271436.210.37134125° east
2020 Aug 25, 17:22422060.001935748359081438.230.37144125° east
2020 Aug 26, 12:14421680.002935666359141436.270.38144125° east
2020 Dec 30, 13:25421660.002735675359011436.170.57194124° east
2020 Dec 30, 20:07422510.000735842359031440.490.56179124° east
2021 Feb 03, 10:09422500.000835836359071440.440.6521188° east
2021 Feb 05, 08:39421640.000535764358081436.080.6630188° east
2021 Jul 18, 13:11421630.001835711358591436.010.62888° east
2021 Jul 19, 20:55421780.001435743358571436.770.341088° east
2021 Jul 21, 12:39421630.000835752358181436.010.341188° east


2021-094
CZ 3B
Xichang Space Centre
2021 Oct 24, 01:27
Shijian 21 payload 1 (Practice 21)
2021-094A
49330
in space
Test satellite described as "…demonstrating technologies to alleviate and neutralize space debris". Moved to geosynchronous drift orbit probably Oct 24 or 25. Until 2021 Dec 26, orbited alongside 2021-094C which it approached closely on several occasions.

epoch (UTC)         
s-m axis
( km )
ecc    perigee
( km )
apogee
( km )
period
( min )
incl 
( ° )
ω  
( ° )
GEO    
Longitude
2021 Oct 24, 05:50243990.729322635815632.1428.47180
2021 Nov 02, 17:15422460.000235860358751440.238.1139156° east
2021 Dec 16, 15:11423130.001235885359861443.708.19209107° east
2021 Dec 23, 13:33423130.001235885359861443.708.2021094° east
2021 Dec 24, 10:17424660.000636064361111451.508.2016191° east
2021 Dec 27, 02:54421360.010135334361821434.648.2023890° east
Shijian 21 payload 2
2021-094C
49382
in space
Secondary satellite in the Shijian 21 mission. Appears to have separated from Shijian 21 on Nov 1 at around 15:00 UTC. On Nov 3, Space-Track gave it the name 'SJ-21 AKM' implying it is a rocket engine - the interpretation is incorrect. Used its thrusters to make small orbital changes.

epoch (UTC)         
s-m axis
( km )
ecc    perigee
( km )
apogee
( km )
period
( min )
incl 
( ° )
ω  
( ° )
GEO    
Longitude
2021 Nov 02, 17:33422460.000235860358761440.268.1227156° east
2021 Dec 23, 13:08423140.001235886359851443.718.2020994° east
2021 Dec 24, 13:33424660.000636064361111451.508.2015991° east


2021-122
CZ 4B
Jiuquan Space Centre
2021 Dec 10, 00:11
Shijian 6-05A (Practice 6-05A)
2021-122A
49961
in space
One of a pair of related satellites in a dual launch, reportedly to carry out space environment monitoring and technology tests. The previous Shijian 6 mission was launched in 2010 from Taiyuan with a stated two year lifetime.

epoch (UTC)         
s-m axis
( km )
ecc    perigee
( km )
apogee
( km )
period
( min )
incl 
( ° )
ω  
( ° )
Desc Node
Local Time
2021 Dec 10, 12:1168390.001145446993.8297.3628006:30
2021 Dec 22, 15:3168430.001145747293.8997.3520806:30
2022 Jan 07, 22:4068420.001245647393.8897.3515006:31
Shijian 6-05B (Practice 6-05B)
2021-122B
49962
in space
One of a pair of related satellites in a dual launch, reportedly to carry out space environment monitoring and technology tests. The previous Shijian 6 mission was launched in 2010 from Taiyuan with a stated two year lifetime.

epoch (UTC)         
s-m axis
( km )
ecc    perigee
( km )
apogee
( km )
period
( min )
incl 
( ° )
ω  
( ° )
Desc Node
Local Time
2021 Dec 10, 12:1268410.001045747093.8697.3626506:30
2022 Jan 09, 13:4868420.001245647393.8897.3614506:31




Page date: 2022 Mar 15
Orbits updated: 2022 Apr 07

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