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Beidou - China's Navigation System


Tyneside, UK
2019 Dec 15
Sunday, Day 349

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Beidou System

China saw out calendar year 2012 with an announcement that the Beidou navigation system was fully tested and complete for the Asia-Pacific region and was providing a full service.


Development Series 2000-2007

The main characteristic of the development satellites was that they had no onboard clock and had to pick up a time signal from the ground. Alternatively, users could use a secondary time source to combine with the navigation signal for positional calculation.

Of the development satellites, Beidou 1D (2007-003A/30323) was retired early 2009 as the early operational satellites came on stream, possibly indicating that its navigation payload was no longer functioning. It remained at 144° east for all of its life, not quite the 140° longitude of the standard location.

Of the others, Beidou 1A (2000-069A/26599) and Beidou 1B (2000-082A/26643) remained on station, supplementing the operational satellites, until late 2011 when they moved to graveyard orbit. By then, several operational satellites were in use.

Beidou 1C (2003-021A/27813) seems to been in use until mid-2012 when it was moved from 110° east, where it had been since launch, to 86°C east. It remained there until 2012 December when it too was moved to a graveyard orbit. Beidou 4 (2010-024A/36590), an operational satellite, took over the station.


Regional Satellites 2007-12

Beidou LogoOf the operational satellites, Beidou 2/G2 (2009-018A/34779) was never used at a fixed location. It drifted from place to place round the geosyschronous arc, occasionally settling down and then moving on. Two possibilities come to mind in that it may all along have been a test vehicle for use away from the Asia-Pacific region. Alternatively it may have suffered degradation of its navigation signal, making it useless for full operation, so it could have been relegated to an engineering test role.

With the 2012 announcement, that the regional constellation, covering the Asia-Pacific area, was complete it contained vehicles in a combination of true geosynchronous orbit and 55° inclined geosynchronous orbit. The 20,000 kilometre circular MEO at 55° inclination was also in use but it was probably as a precursor to rolling-out global coverage.


Global System 2015-2020

China's next move was to be enhancement of the constellation to give full global coverage, to place it on a par with GPS and GLONASS. The aim is to complete this by 2020.

Rollout consists of a mixture of new satellites (Phase 3) in MEO and replenishments of the inclined GEO element of the constellation using second generation satellites. Once completed, the true GEO satellites may be phased out.

The following table lists all launches in connection development and operation of the Beidou space segment. Published locations for the geosynchronous Beidou satellites are (all easterly): 80°, 110°.5, 140° and 160°.


2000-069
CZ 3A
Xichang Space Centre, China

2000 Oct 30,   16:02 UTC
Beidou-1 01   
2000-069A
26599

 
Developmental satellite in geosynchronous orbit for China's navigation satellite system. It differs from the operational satellites by not having an onboard clock, and relaying time information from the ground. Moved to graveyard orbit 2011 Dec.

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
GEO    
longitude
2000 Oct 30, 22:58274100.761017441890752.7124.98180
2000 Nov 9, 18:00421650.000335772358021436.120.17154140° east
2011 Nov 20, 17:17421660.000435771358051436.162.6715858° east
2011 Dec 21, 00:50425510.001936093362521455.873.2224482° west
2016 Mar 28, 18:03425510.001136127362181455.856.37301174° west

2000-082
CZ 3A
Xichang Space Centre, China

2000 Dec 20,   16:20 UTC
Beidou-1 02   
2000-082A
26643

 
Developmental satellite in geosynchronous orbit for China's navigation satellite system. It differs from the operational satellites by not having an onboard clock, and relaying time information from the ground. Moved to graveyard orbit 2011 Dec.

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
GEO    
longitude
2000 Dec 21, 04:58273680.759719841781750.9625.02180
2000 Dec 27, 22:33421640.000235776357961436.060.1216380° east
2011 Nov 20, 20:05421650.000135782357921436.124.1218880° east
2011 Dec 18, 03:23424500.002235979361661450.714.2128610° west

2003-021
CZ 3A
Xichang Space Centre, China

2003 May 24,   16:34 UTC
Beidou-1 03   
2003-021A
27813

 
Developmental satellite in geosynchronous orbit for China's navigation satellite system. It differs from the operational satellites by not having an onboard clock, and relaying time information from the ground. 2012 Jun-Jul: moved to 86° east prior to re-location of Beidou 4 (2010-024A/36590) in the opposite direction. Moved to graveyard orbit 2012 Dec after arrival on station of Beidou 16 (2012-057A/38953).

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
GEO    
longitude
2003 May 25, 08:02273300.759319941704749.4025.06180
2003 Jun 4, 18:16421650.000835751358221436.090.2937111° east
2011 Nov 20, 18:06421640.000635760358131436.081.0618111° east
2012 Apr 9, 22:09421650.001335733358411436.101.39356111° east
2012 Jul 6, 21:57421670.000135783357941436.191.5933085° east
2012 Oct 5, 20:03421660.000335776358001436.171.7815686° east
2012 Dec 14, 22:17422050.000535806358481438.161.9423480° east
2012 Dec 28, 19:57422630.000035884358861441.131.9725867° east

2007-003
CZ 3A
Xichang Space Centre, China

2007 Feb 2,   16:28 UTC
Beidou-1 04   
2007-003A
30323

 
Developmental satellite in geosynchronous orbit for China's navigation satellite system. It differs from the operational satellites by not having an onboard clock, and relaying time information from the ground. Moved to graveyard orbit 2009 Feb.

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
GEO    
longitude
2007 Feb 3, 19:29273610.759919241775750.7025.00180
2007 Apr 30, 05:33421650.010835332362421436.126.30276144° east
2009 Feb 18, 06:54421640.012335269363031436.054.68304144° east
2009 Feb 20, 17:06424160.009235647364281448.934.65325138° east

2007-011
CZ 3A
Xichang Space Centre, China

2007 Apr 13,   20:11 UTC
Beidou-1S M-1S   
2007-011A
31115

 
In orbit validation satellite in China's pre-operational navigation satellite system in MEO.

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
2007 Apr 14, 06:08172400.618519821526375.4655.03174
2007 Apr 19, 08:46279100.00052151821545773.3855.26184
2011 Nov 20, 09:21279100.00082151121554773.4056.60192

2009-018
CZ 3C
Xichang Space Centre, China

2009 Apr 14,   16:16 UTC
Beidou-2 G-2   
2009-018A
34779

 
Phase 1 operational satellite in China's navigation satellite system. It also provides time and messaging services for the Asia-Pacific region from geosynchronous orbit. Entered GEO near 85° east but then drifted westward along the geosynchronous arc. It returned to 85° east during 2011 but was allowed to drift further, indicating that the navigation payload was not fully functional - relegating it to a test mode. It may have been used as a test vehicle for navigation in regions away from the Asia-Pacific region.

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
GEO    
longitude
2009 Apr 15, 02:50244110.730121035857632.6320.53180
2009 May 2, 18:38421650.000335775357981436.090.9410585° east
2009 Oct 29, 21:46421720.000135791357981436.480.519175° east
2010 May 2, 15:08421650.000335775357991436.110.09764° east
2010 Sep 8, 22:41421350.004735561359531434.570.2915873° east
2011 Nov 21, 14:11421930.005135600360311437.561.3116084° east
2012 Oct 17, 01:38421630.005735544360261436.022.0416620° east
2016 Mar 28, 11:23421350.009035378361361434.584.5519465° east

2010-001
CZ 3C
Xichang Space Centre, China

2010 Jan 16,   16:12 UTC
Beidou-2 G-1   
2010-001A
36287

 
Phase 1 operational satellite in China's navigation satellite system. It also provides time and messaging services for the Asia-Pacific region from geosynchronous orbit.

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
GEO    
longitude
2010 Jan 17, 08:16242790.729518935613627.4820.44180
2010 Jan 25, 16:49421640.004435600359721436.081.83230160° east
2011 Nov 22, 09:49421660.000335776357991436.141.51192140° east
2016 Mar 29, 21:33421640.000335775357971436.071.59189140° east

2010-024
CZ 3C
Xichang Space Centre, China

2010 Jun 2,   15:53 UTC
Beidou-2 G-3   
2010-024A
36590

 
Phase 1 operational satellite in China's navigation satellite system. It also provides time and messaging services for the Asia-Pacific region from geosynchronous orbit. Moved to 110° east 2012 Nov to replace Beidou 1C (2003-021A/27813).

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
GEO    
longitude
2010 Jun 3, 02:29243140.729120935663628.8520.54180
2010 Jun 11, 20:15421640.000235778357951436.081.8219685° east
2011 Nov 22, 16:16421640.000135781357921436.071.1724384° east
2012 Nov 7, 15:48420410.000235653356731429.801.2318586° east
2012 Nov 23, 23:11421640.000335772357991436.041.25293110° east
2016 Mar 30, 00:37421660.000335773358021436.151.52301110° east

2010-036
CZ 3A
Xichang Space Centre, China

2010 Jul 31,   21:30 UTC
Beidou-2 IGEO-1   
2010-036A
36828

 
Fully-functional satellite in China's pre-operational navigation satellite system. It also provides time and messaging services for the Asia-Pacific region. Orbit is inclined at 55° to provide northerly coverage. It has an equator crossing near 118° east longitude.

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
GEO    
longitude
2010 Aug 1, 03:35243980.730819035851632.1355.06175
2010 Aug 7, 17:18421590.002735667358941435.7955.09183116° east
2010 Oct 6, 10:52421640.002635677358951436.0655.06182118° east
2016 Mar 29, 21:39421690.004435603359781436.2954.25215119° east

2010-057
CZ 3C
Xichang Space Centre, China

2010 Oct 31,   16:26 UTC
Beidou-2 G-4   
2010-057A
37210

 
Phase 1 operational satellite in China's navigation satellite system. It also provides time and messaging services for the Asia-Pacific region from geosynchronous orbit.

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
GEO    
longitude
2010 Nov 1, 07:12243850.730619235821631.5820.48180
2010 Nov 10, 13:14421650.000535764358091436.091.82208160° east
2011 Nov 21, 12:34421640.000435769358041436.081.04196160° east
2016 Mar 29, 14:17421640.000535765358071436.060.98182160° east

2010-068
CZ 3A
Xichang Space Centre, China

2010 Dec 17,   20:20 UTC
Beidou-2 IGEO-2   
2010-068A
37256

 
Fully-functional satellite in China's pre-operational navigation satellite system. It also provides time and messaging services for the Asia-Pacific region. Orbit is inclined at 55° to provide northerly coverage. Equator crossing near 118° east longitude to share service with Beidou 2-05 (2010-036A/36828).

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
GEO    
longitude
2010 Dec 19, 02:41243790.730818435818631.3655.09175
2010 Dec 22, 13:38421650.001735717358561436.0955.24179120° east
2016 Mar 29, 17:33421670.004035621359571436.2053.67205119° east

2011-013
CZ 3A
Xichang Space Centre, China

2011 Apr 9,   20:47 UTC
Beidou-2 IGEO-3   
2011-013A
37384

 
Fully-functional satellite in China's pre-operational navigation satellite system.. It also provides time and messaging services for the Asia-Pacific region from its 55° inclined geosynchronous orbit that crosses the equator near 118° east longitude to share service with Beidou 2-05 (2010-036A/36828) and Beidou 2-07 (2010-068A 37256).

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
GEO    
longitude
Estimated orbit 239210.725319234893613.6555.10175
2011 Apr 13, 20:06420270.001235599356981429.0555.29333118° east
2011 Apr 15, 14:15421600.002135694358711435.8755.29184118° east
2016 Mar 28, 21:17421610.002635672358931435.8957.28204121° east

2011-038
CZ 3A
Xichang Space Centre, China

2011 Jul 26,   21:44 UTC
Beidou-2 IGEO-4   
2011-038A
37763

 
Fully-functional satellite in China's pre-operational navigation satellite system. It also provide time and messaging services for the Asia-Pacific region from a 55° inclined geosynchronous orbit crossing the equator near 93° east longitude, parked as an on-orbit spare 25 degrees to the west of the main inclined group of Beidou 2-05 (2010-036A/36828), Beidou 2-07 (2010-068A 37256) and Beidou 2-08 (2011-013A/37384) . Launch was about 20 minutes later than expected, indicating a possible unplanned hold in the countdown.

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
GEO    
longitude
2011 Jul 29, 08:18243600.729820435759630.6355.12175
2011 Aug 6, 19:21421630.002035699358711436.0255.2118893° east
2016 Mar 29, 21:56421590.003835620359431435.8354.5520793° east

2011-073
CZ 3A
Xichang Space Centre, China

2011 Dec 1,   21:07 UTC
Beidou-2 IGEO-5   
2011-073A
37948

 
Fully-functional satellite in China's pre-operational navigation satellite system. It also provides time and messaging services for the Asia-Pacific region from a 55° inclined geosynchronous orbit crossing the equator near 93° east longitude - parked as an on-orbit spare along with Beidou 2-09 (2011-038A/37763) 25 degrees to the west of the main inclined group of Beidou 2-05 (2010-036A/36828), Beidou 2-07 (2010-068A 37256) and Beidou 2-08 (2011-013A/37384). Arrived on station 2011 Dec 10 at 10:55 UTC ±20 min.

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
GEO    
longitude
2011 Dec 2, 07:46243810.731317335832631.4355.34175
2011 Dec 14, 06:30421630.001935704358661436.0155.1718995° east
2016 Mar 29, 03:07421640.003635633359391436.0653.7720295° east

2012-008
CZ 3C
Xichang Space Centre, China

2012 Feb 24,   16:12 UTC
Beidou-2 G-5   
2012-008A
38091

 
Phase 1 operational satellite in China's navigation satellite system. It also provides time and messaging services for the Asia-Pacific region from geosynchronous orbit. Its initial geosynchronous location was not one of the expected operational slots so the satellite may be an on-orbit spare.

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
GEO    
longitude
2012 Feb 26, 16:05245280.730323736064637.1821.14182
2012 Mar 1, 00:44422240.002235751359401439.131.8830959° east
2012 Mar 5, 05:08421660.000335776357991436.151.871259° east

2012-018
CZ 3B
Xichang Space Centre, China

2012 Apr 29,   20:50 UTC
Beidou-2 M-3   
2012-018A
38250

 
Phase 1 operational satellite in MEO for China's navigation satellite system.

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
2012 Apr 30, 15:39172730.619319721592376.5455.04173
2012 May 9, 08:17279050.00242146021595773.1955.16186
Beidou-2 M-4   
2012-018B
38251

 
Phase 1 operational satellite in MEO for China's navigation satellite system.

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
2012 May 1, 01:45172590.618920021562376.0955.04174
2012 May 10, 04:27279110.00262146121605773.4454.97180
2012 May 20, 11:00279060.00272145221603773.2155.10180

2012-050
CZ 3B
Xichang Space Centre, China

2012 Sep 18,   19:50 UTC
Beidou-2 M-5   
2012-050A
38774

 
Phase 1 operational satellite in MEO for China's navigation satellite system.

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
2012 Sep 28, 15:55279050.00232146221591773.1955.00183
Beidou-2 M-6   
2012-050B
38775

 
Phase 1 operational satellite in China's navigation satellite system. It also provides time and messaging services for the Asia-Pacific region.

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
2012 Sep 20, 06:12172670.619319521583376.3554.98174
2012 Sep 28, 06:39279040.00172147721574773.1355.09210

2012-059
CZ 3C
Xichang Space Centre, China

2012 Oct 25,   15:33 UTC
Beidou-2 G-6   
2012-059A
38953

 
Phase 1 operational satellite in China's navigation satellite system. It also provides time and messaging services for the Asia-Pacific region from geosynchronous orbit. Precise launch time - 15:33:04 UTC, injected into geosynchronous near its planned location at 80° east on Oct 28 at approx 10:00 UTC. On completion of testing, Beidou 16 became the final satellite needed to provide full navigation coverage in the Asia-Pacific region.

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
GEO    
longitude
2012 Oct 25, 10:49238170.725216734712609.6820.54180
2012 Nov 1, 17:26421650.000335775357991436.111.8430480° east
2016 Mar 29, 20:18421650.000235779357951436.100.7525380° east

2015-019
CZ 3C
Xichang Space Centre, China

2015 Mar 30,   13:52 UTC
Beidou-3S IGEO-1S   
2015-019A
40549

 
In-orbit validation satellite in China's navigation satellite system in inclined geosynchronour orbit. Transmitted navigation signals are different from those of the operational satellites.

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
GEO    
longitude
2015 Apr 2, 08:03426670.011535797367811461.8454.98172163° west
2015 Apr 28, 22:10421580.004135606359531435.7454.9617495° east
2015 Aug 10, 20:38421650.004635595359791436.1054.9117898° east
2016 Mar 29, 00:21421630.004035614359551435.9954.7618097° east

2015-037
CZ 3B
Xichang Space Centre, China

2015 Jul 25,   12:29 UTC
Beidou-3S M-1S   
2015-037A
40748

 
In-orbit validation satellite China's navigation system in MEO. Transmitted navigation signals are different from those of the operational satellites.

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
2015 Jul 26, 17:03282370.01182152522194787.0454.98177
2015 Aug 13, 22:08279060.00052151521542773.2454.99253
Beidou-3S M-2S   
2015-037B
40749

 
In-orbit validation satellite China's navigation system in MEO. Transmitted navigation signals are different from those of the operational satellites.

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
2015 Jul 27, 11:47280830.00632152821881780.5854.99180
2015 Jul 29, 03:08278740.00122146421528771.8954.99344
2015 Aug 7, 12:42279070.00052151421543773.2754.99264

2015-053
CZ 3B
Xichang Space Centre, China

2015 Sep 29,   23:13 UTC
Beidou-3S IGEO-2S   
2015-053A
40938

 
In-orbit validation satellite in China's navigation satellite system in inclined geosynchronour orbit. Transmitted navigation signals are different from those of the operational satellites.

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
GEO    
longitude
2015 Sep 30, 13:08243890.730619235828631.7455.05180
2015 Oct 8, 12:02421580.004135606359541435.7555.0217494° east
2015 Dec 10, 00:38421610.004335601359651435.9254.9517097° east

2016-006
CZ 3C + YZ-1
Xichang Space Centre, China

2016 Feb 1,   07:29 UTC
Beidou-3S M-3S   
2016-006A
41315

 
In-orbit validation satellite China's navigation system in MEO. Transmitted navigation signals are different from those of the operational satellites. Separated from upper rocket stage 10:45 UTC +/-15 min.

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
2016 Feb 1, 14:39281250.00832151321982782.3655.00177
2016 Mar 3, 23:33279060.00012152421532773.2355.05277

2016-021
CZ 3A
Xichang Space Centre, China

2016 Mar 29,   20:11 UTC
Beidou-2 IGEO-6   
2016-021A
41434

 
Phase 1 operational satellite in China's navigation satellite system. It also provides time and messaging services for the Asia-Pacific region from inclined geosynchronous orbit. Launch may have been delayed by ten minutes towards the end of countdown.

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
GEO    
longitude
2016 Apr 4, 15:44421610.002535676358901435.9254.9718394° east

2016-037
CZ 3C
Xichang Space Centre, China

2016 Jun 12,   15:30 UTC
Beidou-2 G-7   
2016-037A
41586

 
Phase 1 operational satellite in China's navigation satellite system. It also provides time and messaging services for the Asia-Pacific region from geosynchronous orbit.

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
GEO    
longitude
2016 Jun 12, 20:09237750.722521934574608.0519.28179
2016 Jun 23, 12:22421640.000235776357941436.031.84258144° east

2017-069
CZ 3B + YZ-1
Xichang Space Centre, China

2017 Nov 5,   11:45 UTC
Beidou-3 M-1   
2017-069A
43001

 
Phase 2 operational satellite in MEO for China's navigation satellite system.

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
2017 Nov 6, 21:50281560.00862153522020783.6255.00178
2017 Nov 12, 17:05279060.00082150621549773.2355.01281
Beidou-3 M-2   
2017-069B
43002

 
Phase 2 operational satellite in MEO for China's navigation satellite system.

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
2017 Nov 6, 16:29282460.01152154222194787.3955.00177
2017 Dec 7, 06:35279060.00072150821548773.2355.01307

2018-003
CZ 3B + YZ-1
Xichang Space Centre, China

2018 Jan 11,   23:18 UTC
Beidou-3 M-7   
2018-003A
43107

 
Phase 2 operational satellite in MEO for China's navigation satellite system.

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
2018 Jan 12, 07:21282440.01162153822194787.3255.01177
2018 Feb 8, 15:43279060.00042151621540773.2355.01349
Beidou-3 M-8   
2018-003B
43108

 
Phase 2 operational satellite in MEO for China's navigation satellite system.

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
2018 Jan 31, 19:23280260.00372154521750778.2055.00176
2018 Feb 10, 20:23279060.00052151421542773.2255.00243

2018-018
CZ 3B + YZ-1
Xichang Space Centre, China

2018 Feb 12,   05:03 UTC
Beidou-3 M-3   
2018-018A
43207

 
Phase 2 operational satellite in MEO for China's navigation satellite system.

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
2018 Feb 13, 11:01282400.01172153322192787.1754.99178
2018 Feb 27, 04:06279060.00072150921547773.2254.98316
Beidou-3 M-4   
2018-018B
43208

 
Phase 2 operational satellite in MEO for China's navigation satellite system.

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
2018 Feb 14, 13:16282460.01152154422191787.3854.98178
2018 Feb 27, 02:02279210.00082152121565773.8654.99248
2018 Feb 28, 04:17279060.00082150621551773.2454.98288

2018-029
CZ 3B + YZ-1
Xichang Space Centre, China

2018 Mar 29,   17:56 UTC
Beidou-3 M-9   
2018-029A
43245

 
Phase 2 operational satellite in MEO for China's navigation satellite system.

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
2018 Apr 3, 12:58279090.00032152321538773.3455.02321
2018 Apr 5, 21:56279060.00022152221534773.2255.02305
Beidou-3 M-10   
2018-029B
43246

 
Phase 2 operational satellite in MEO for China's navigation satellite system.

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
2018 Mar 31, 16:13282450.01152154222192787.3755.00178
2018 Apr 30, 03:18279060.00062151221544773.2455.03323

2018-057
CZ 3A
Xichang Space Centre, China

2018 Jul 9,   20:58 UTC
Beidou-2 IGEO-7   
2018-057A
43539

 
Phase 1 operational satellite in China's navigation satellite system. It also provides time and messaging services for the Asia-Pacific region from inclined geosynchronous orbit.

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
GEO    
longitude
2018 Jul 10, 03:04243640.730319335778630.7855.10175
2018 Jul 16, 13:57421610.002235692358741435.8955.06183111° east

2018-062
CZ 3B + YZ-1
Xichang Space Centre, China

2018 Jul 29,   01:48 UTC
Beidou-3 M-5   
2018-062A
43581

 
Phase 2 operational satellite in MEO for China's navigation satellite system.

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
2018 Jul 30, 21:26280920.00652153121896780.9754.98182
2018 Aug 16, 03:32282040.01052153122121785.6555.08340
2018 Aug 21, 10:54279060.00062151021546773.2354.98239
Beidou-3 M-6   
2018-062B
43582

 
Phase 2 operational satellite in MEO for China's navigation satellite system.

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
2018 Jul 29, 10:08282380.01202152122198787.0554.99177
2018 Aug 16, 12:24279060.00042151721538773.2154.96287

2018-067
CZ 3B + YZ-1
Xichang Space Centre, China

2018 Aug 24,   23:52 UTC
Beidou-3 M-11   
2018-067A
43602

 
Phase 2 operational satellite in MEO for China's navigation satellite system.

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
2018 Aug 28, 00:23282460.01162154122195787.4255.01177
2018 Sep 24, 18:52279050.00052151421540773.2055.00327
Beidou-3 M-12   
2018-067B
43603

 
Phase 2 operational satellite in MEO for China's navigation satellite system.

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
2018 Aug 27, 01:57282410.01172153222193787.1855.01177
2018 Sep 1, 06:33279140.00032152721545773.5855.02243
2018 Sep 3, 05:16279060.00032151821537773.2355.02292

2018-072
CZ 3B + YZ-1
Xichang Space Centre, China

2018 Sep 19,   14:07 UTC
Beidou-3 M-13   
2018-072A
43622

 
Phase 2 operational satellite in MEO for China's navigation satellite system.

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
2018 Sep 21, 15:26282410.01172153322193787.2054.97177
2018 Sep 28, 15:36280180.00382153221747777.8854.96184
2018 Oct 11, 04:50279060.00052151421542773.2454.98289
Beidou-3 M-14   
2018-072B
43623

 
Phase 2 operational satellite in MEO for China's navigation satellite system.

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
2018 Sep 20, 20:37282440.01162153822193787.3154.97177
2018 Oct 1, 20:53279060.00052151421542773.2254.98316

2018-078
CZ 3B + YZ-1
Xichang Space Centre, China

2018 Oct 15,   04:23 UTC
Beidou-3 M-15   
2018-078A
43647

 
Phase 2 operational satellite in MEO for China's navigation satellite system.

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
2018 Oct 17, 01:17282460.01162154122195787.4254.98178
2018 Nov 7, 05:58280830.00582154221867780.5955.00182
2018 Nov 13, 00:22279060.00062151021546773.2355.01316
Beidou-3 M-16   
2018-078B
43648

 
Phase 2 operational satellite in MEO for China's navigation satellite system.

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
2018 Oct 17, 15:03282440.01162153822195787.3354.99177
2018 Nov 15, 02:15280370.00442153521783778.6955.00183
2018 Nov 16, 16:23279050.00042151621537773.1855.01313

2018-085
CZ 3B
Xichang Space Centre, China

2018 Nov 1,   15:57 UTC
Beidou-3 G-1   
2018-085A
43683

 
Phase 2 operational satellite in China's navigation satellite system. It also provides time and messaging services for the Asia-Pacific region.

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
GEO    
longitude
2018 Nov 1, 23:41243750.730818335810631.2028.45180
2018 Nov 13, 17:14421640.000035784357881436.053.07123145° east

2018-093
CZ 3B + YZ-1
Xichang Space Centre, China

2018 Nov 18,   18:07 UTC
Beidou-3 M-17   
2018-093A
43706

 
Phase 2 operational satellite in MEO for China's navigation satellite system.

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
2018 Nov 22, 03:43282370.01192152322194787.0254.99178
2018 Nov 25, 17:04282370.01192152322194787.0254.99178
2018 Dec 18, 13:39279270.00142151021587774.0954.97230
2018 Dec 20, 05:01279060.00102150021556773.2154.97261
Beidou-3 M-18   
2018-093B
43707

 
Phase 2 operational satellite in MEO for China's navigation satellite system.

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
2018 Nov 20, 17:56282410.01172153222194787.1954.99178
2018 Nov 22, 11:02281800.00962153222071784.6354.98179
2018 Dec 12, 21:37280070.00372152621731777.4154.97189
2018 Dec 14, 22:18279060.00102150121554773.2054.98281

2019-023
CZ 3B
Xichang Space Centre, China

2019 Apr 20,   14:41 UTC
Beidou-3 IGEO-1   
2019-023A
44204

 
Phase 2 operational satellite in China's navigation satellite system. It also provides time and messaging services for the Asia-Pacific region from inclined geosynchronous orbit.

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
GEO    
longitude
2019 Apr 20, 20:37243690.730319335788630.9828.47180
2019 May 1, 16:47421560.001635710358451435.6554.92184110° east
2019 Jul 25, 00:32421630.001735714358571436.0355.03178115° east
2019 Nov 22, 17:29421570.001635712358451435.6955.20186112° east

2019-027
CZ 3C
Xichang Space Centre, China

2019 May 17,   15:48 UTC
Beidou-3 G-2   
2019-027A
44231

 
Phase 2 operational satellite in China's navigation satellite system. It also provides time and messaging services for the Asia-Pacific region.

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
GEO    
longitude
2019 May 18, 07:45243490.729919835743630.1919.36180
2019 May 29, 20:58421640.000335773357991436.061.8513280° east

2019-035
CZ 3B
Xichang Space Centre, China

2019 Jun 24,   18:09 UTC
Beidou-3 IGEO-2   
2019-035A
44337

 
Phase 2 operational satellite in China's navigation satellite system. It also provides time and messaging services for the Asia-Pacific region from inclined geosynchronous orbit.

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
GEO    
longitude
2019 Jun 25, 04:49243800.730519335812631.4228.58180
2019 Jul 5, 14:00421590.001235730358311435.8055.05186106° east
2019 Aug 31, 18:34421630.001235735358351436.0155.05183108° east

2019-061
CZ 3B + YZ-1
Xichang Space Centre, China

2019 Sep 22,   21:10 UTC
Beidou-3 M-23   
2019-061A
44542

 
Phase 2 operational satellite in MEO for China's navigation satellite system. Launch was brought forward by 24 hrs to avoid forecast bad weather at the launch site.

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
2019 Sep 24, 18:57282480.01152154622194787.4755.03177
2019 Oct 1, 20:30282050.01002154722108785.7155.02176
2019 Oct 25, 12:15279140.00072151821555773.5755.02299
Beidou-3 M-24   
2019-061B
44543

 
Phase 2 operational satellite in MEO for China's navigation satellite system. Launch was brought forward by 24 hrs to avoid forecast bad weather at the launch site.

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
2019 Sep 24, 18:53282420.01162153522192787.2255.02177
2019 Sep 28, 18:54281540.00852153522016783.5455.02178
2019 Oct 4, 10:38279060.00072150721549773.2355.01288

2019-073
CZ 3B
Xichang Space Centre, China

2019 Nov 4,   17:43 UTC
Beidou-3 IGEO-3   
2019-073A
44709

 
Phase 2 operational satellite in China's navigation satellite system. It also provides time and messaging services for the Asia-Pacific region from inclined geosynchronous orbit. Probably moved into geosynchronous drift orbit some time on Nov 5 and arrived on station shortly after. Launch completes the IGEO part of the Beidou-3 constellation.

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
GEO    
longitude
2019 Nov 4, 23:24243840.730918435828631.5728.51180
2019 Nov 22, 20:40421590.002535675358881435.8158.70184106° east

2019-078
CZ 3A + YZ-1
Xichang Space Centre, China

2019 Nov 23,   00:55 UTC
Beidou-3 M-21   
2019-078A
44793

 
Phase 2 operational satellite in MEO for China's navigation satellite system.

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
2019 Nov 23, 07:06282390.01172153022192787.1254.99178
Beidou-3 M-22   
2019-078B
44794

 
Phase 2 operational satellite in MEO for China's navigation satellite system.

epoch (UTC)
s-m axis
( km )

ecc
perigee
( km )
apogee
( km )
period
( min )
incl
( ° )
ω 
( ° )
2019 Nov 23, 06:56282410.01172153322192787.1854.98177



Page date: 2011 Nov 21
Updated: 2012 Dec 31
Updated: 2016 Mar 30

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