List of Yaogan Launches

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Yaogan - China's Reconsats

Tyneside, UK
2021 May 11
Tuesday, Day 131

Maintained by:

The table lists all launches by China under the name Yaogan. They have used a range of different launch vehicles and have been launched from both Jiuquan and Taiyuan.

Yaogan seems to be a name to cover satellites having an imaging mission with a government or military purpose. Some seem to carry optical payloads and others carry radar. There are also some launches into orbits very like the US NOSS satellites. They probably have an ocean reconnaissance ELINT or SIGINT payload.

For the satellites in sun-synchronous orbit, looking at the orbit heights and inclinations together with the descending node local time gives an indication of related missions.

2006-015 CZ 4C Taiyuan Space Centre						2006 Apr 26, 22:48
Yaogan 1 2006-015A 29092						in space
Imaging satellite (possibly carrying a synthetic aperture radar) for natural resources surveys and, possibly, intelligence gathering. Specific tasks include land survey, crop yield assessment, and input to disaster monitoring and prevention plans. Broke into eight fragments 2010 Feb 4, around 07:00 UTC as the result of a minor internal explosion probably due to equipment failure.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )	Desc Node Local Time
2006 Apr 27, 06:21	6993	0.0017	603	626	96.99	97.80	4	06:00
2006 May 02, 04:37	7007	0.0001	628	629	97.28	97.80	96	05:59
2010 Feb 03, 17:35	7006	0.0002	627	630	97.27	97.86	93	05:00

2007-019 CZ 2D Jiuquan Space Centre						2007 May 25, 07:12
Yaogan 2 2007-019A 31490						in space
Imaging satellite for natural resources surveys and, possibly, intelligence gathering. Specific tasks include land survey, crop yield assessment, and input to disaster monitoring and prevention plans.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )	Desc Node Local Time
2007 May 25, 19:40	7021	0.0017	631	655	97.59	97.84	323	13:30
2008 Dec 01, 02:24	7021	0.0018	630	655	97.58	97.89	333	13:02
2009 Dec 09, 00:55	7021	0.0018	631	656	97.59	97.92	204	12:51
2010 Oct 22, 03:47	7022	0.0017	632	656	97.61	97.94	267	12:43
2012 May 10, 08:38	7025	0.0019	633	661	97.67	97.96	256	12:33
2013 Jul 15, 04:50	7024	0.0020	632	660	97.65	97.98	316	12:30
2013 Oct 29, 12:35	7024	0.0020	632	660	97.64	97.98	335	12:29

2007-055 CZ 4C Taiyuan Space Centre						2007 Nov 11, 22:48
Yaogan 3 2007-055A 32289						in space
Imaging satellite (possibly carrying a synthetic aperture radar) for natural resources surveys and, possibly, intelligence gathering. Specific tasks include land survey, crop yield assessment, and input to disaster monitoring and prevention plans.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )	Desc Node Local Time
2007 Nov 15, 00:43	6997	0.0007	613	624	97.07	97.80	274	05:59
2007 Nov 21, 10:34	7007	0.0002	627	630	97.28	97.81	118	05:59
2009 Aug 09, 04:05	7006	0.0002	627	629	97.27	97.81	63	05:27
2012 May 10, 09:09	7005	0.0001	626	628	97.25	97.88	66	04:54
2013 Jul 15, 21:32	7003	0.0002	624	626	97.21	97.91	65	04:53
2013 Oct 29, 13:01	7003	0.0002	624	626	97.21	97.92	65	04:54

2008-061 CZ 2D Jiuquan Space Centre						2008 Dec 1, 04:42
Yaogan 4 2008-061A 33446						in space
Imaging satellite for natural resources surveys and, possibly, intelligence gathering. Specific tasks include land survey, crop yield assessment, and input to disaster monitoring and prevention plans.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )	Desc Node Local Time
2008 Dec 01, 20:25	7021	0.0013	634	652	97.58	97.92	309	11:00
2009 Dec 09, 02:37	7021	0.0014	634	653	97.59	97.89	180	10:48
2010 Oct 22, 03:47	7022	0.0013	635	653	97.61	97.86	241	10:33
2012 May 10, 08:13	7025	0.0016	635	658	97.66	97.79	219	09:50
2013 Jul 16, 12:29	7024	0.0016	635	657	97.64	97.74	268	09:04
2013 Oct 29, 13:05	7024	0.0016	634	657	97.63	97.72	290	08:51
2013 Nov 20, 20:47	7024	0.0016	634	657	97.63	97.72	212	08:48

2008-064 CZ 4B Taiyuan Space Centre						2008 Dec 15, 03:22
Yaogan 5 2008-064A 33456						Re-entered - 2014 Sep 2 Life 2087 days
Imaging satellite for natural resources surveys and, possibly, intelligence gathering. Specific tasks include land survey, crop yield assessment, and input to disaster monitoring and prevention plans. Ceased orbit adjustment manoeuvres around 2010 May 11.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )	Desc Node Local Time
2008 Dec 16, 05:58	6865	0.0008	481	492	94.34	97.40	277	10:30
2011 Nov 09, 03:49	6850	0.0011	464	480	94.03	97.29	165	10:19
2012 May 09, 23:17	6838	0.0008	454	465	93.78	97.26	229	10:18
2013 Jul 16, 13:09	6803	0.0009	419	431	93.07	97.21	106	10:26
2013 Oct 29, 12:40	6791	0.0008	407	419	92.82	97.20	80	10:32

2009-021 CZ 2C Taiyuan Space Centre						2009 Apr 22, 02:55
Yaogan 6 2009-021A 34839						in space
Imaging satellite (possibly carrying a synthetic aperture radar) for natural resources surveys and, possibly, intelligence gathering. Specific tasks include land survey, crop yield assessment, and input to disaster monitoring and prevention plans.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )	Desc Node Local Time
2009 Apr 22, 20:06	6882	0.0025	486	521	94.70	97.63	320	10:01
2012 May 09, 22:54	6872	0.0002	492	495	94.48	97.54	49	11:26
2013 Jul 15, 11:13	6890	0.0002	511	513	94.87	97.32	113	11:00
2013 Oct 29, 04:56	6891	0.0002	511	514	94.88	97.31	113	10:52

2009-069 CZ 2D Jiuquan Space Centre						2009 Dec 9, 08:42
Yaogan 7 2009-069A 36110						in space
Imaging satellite for natural resources surveys and, possibly, intelligence gathering. Specific tasks include land survey, crop yield assessment, and input to disaster monitoring and prevention plans.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )	Desc Node Local Time
2009 Dec 10, 02:02	7019	0.0025	623	659	97.54	97.84	304	15:00
2010 Oct 22, 02:24	7020	0.0027	623	661	97.56	97.88	5	14:44
2012 May 09, 22:17	7025	0.0026	629	665	97.66	97.96	331	14:26
2013 Jul 15, 12:52	7026	0.0026	630	666	97.68	98.02	21	14:28
2013 Oct 29, 13:20	7026	0.0026	629	666	97.68	98.03	41	14:30

2009-072 CZ 4C Taiyuan Space Centre						2009 Dec 15, 02:31
Yaogan 8 2009-072A 36121						in space
Remote sensing for natural resources surveys. Specific tasks include land survey, crop yield assessment, and input to disaster monitoring and prevention plans.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )	Desc Node Local Time
2009 Dec 16, 03:27	7577	0.0008	1193	1204	109.39	100.50	28	09:29
2012 May 09, 21:40	7577	0.0008	1192	1204	109.39	100.37	182	09:32
2013 Jul 16, 06:20	7576	0.0007	1193	1204	109.39	100.31	279	09:19
2013 Oct 29, 08:54	7576	0.0008	1192	1204	109.39	100.29	43	09:14

Xi Wang 1 (Hope 1) 2009-072B 36122						in space
Student-built satellite for communications experiments
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2009 Dec 15, 14:26	7465	0.0158	969	1205	106.99	100.44	26
2009 Dec 16, 03:28	7577	0.0008	1193	1205	109.40	100.50	40

2010-009 CZ 4C Jiuquan Space Centre						2010 Mar 5, 04:55
Yaogan 9 Leader 2010-009A 36413						in space
Remote sensing satellite described as undertaking land resources surveys and crop yield estimation. However, its purpose may be ocean surveillance similar to the US NOSS triplet formations that orbited at a similar altitude and inclination.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2010 Mar 05, 15:04	7469	0.0010	1083	1099	107.06	63.41	321
2013 Sep 02, 05:50	7469	0.0122	999	1182	107.06	63.41	359
2014 Aug 09, 13:25	7468	0.0153	976	1204	107.06	63.41	1

Yaogan 9 Outlier 2010-009B 36414						in space
One of two further payloads forming the Yaogan 9 mission, and flying in formation with it. May be similar to the US NOSS triplet formations that orbited at a similar altitude and inclination.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2010 Mar 05, 23:59	7470	0.0010	1085	1099	107.09	63.41	317
2010 Mar 11, 09:45	7439	0.0011	1053	1069	106.42	63.41	322
2010 Apr 05, 18:43	7469	0.0013	1081	1100	107.06	63.41	328
2013 Sep 02, 04:03	7469	0.0122	999	1182	107.06	63.41	359
2014 Aug 09, 13:25	7468	0.0153	976	1205	107.06	63.41	0

Yaogan 9 Trailer 2010-009C 36415						in space
One of two further payloads forming the Yaogan 9 mission, and flying in formation with it. May be similar to the US NOSS triplet formations that orbited at a similar altitude and inclination.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2010 Mar 06, 03:34	7471	0.0010	1086	1100	107.11	63.41	307
2010 Mar 12, 16:35	7469	0.0011	1082	1099	107.06	63.41	326
2013 Aug 31, 21:44	7469	0.0123	998	1183	107.06	63.41	359
2014 Aug 10, 05:28	7468	0.0154	975	1205	107.06	63.41	1

2010-038 CZ 4C Taiyuan Space Centre						2010 Aug 9, 22:49
Yaogan 10 2010-038A 36834						in space
Imaging satellite (possibly carrying a synthetic aperture radar) for natural resources surveys and, possibly, intelligence gathering. Specific tasks include land survey, crop yield assessment, and input to disaster monitoring and prevention plans.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )	Desc Node Local Time
2010 Aug 10, 03:07	6993	0.0011	607	622	96.99	97.82	57	06:00
2010 Aug 23, 17:58	7007	0.0001	628	629	97.28	97.83	92	05:59
2012 Apr 08, 12:38	7005	0.0002	626	628	97.25	97.83	91	05:36
2012 May 09, 22:46	7005	0.0002	626	628	97.25	97.83	65	05:35
2013 Jul 16, 08:39	7004	0.0002	624	627	97.22	97.85	68	05:22

2010-047 CZ 2D Jiuquan Space Centre						2010 Sep 22, 02:42
Yaogan 11 2010-047A 37165						in space
Imaging satellite for natural resources surveys and, possibly, intelligence gathering. Specific tasks include land survey, crop yield assessment, and input to disaster monitoring and prevention plans.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )	Desc Node Local Time
2010 Sep 22, 15:09	7019	0.0023	624	657	97.53	98.00	296	08:59
2012 May 09, 23:11	7025	0.0031	625	669	97.67	97.91	168	08:52
2013 Jul 15, 04:34	7025	0.0030	626	668	97.67	97.85	221	08:31
2013 Oct 29, 12:50	7025	0.0029	626	667	97.67	97.84	240	08:23
2016 May 16, 02:06	7018	0.0038	613	667	97.52	98.39	128	08:20

ZP 1A1 (Zhejiang University Pi Satellite 1B) 2010-047B 37166						in space
Picosats, developed by Zhejiang University, for microelectronics studies. One of a pair launched alongside Yaogan 11.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2010 Sep 23, 02:32	7018	0.0024	623	656	97.51	98.01	296

ZP 1A2 (Zhejiang University Pi Satellite 1C) 2010-047C 37167						in space
Picosats, developed by Zhejiang University, for microelectronics studies. One of a pair launched alongside Yaogan 11.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2010 Sep 22, 15:09	7018	0.0024	623	656	97.52	97.99	300

2011-066 CZ 4B Taiyuan Space Centre						2011 Nov 9, 03:21
Tianxun 1 2011-066A 37874						Re-entered - 2016 Feb 7 Life 1551 days
Small technology experiments satellite built by Nanjing University, carrying a 30m resolution Earth imaging device built by Suzhou University. Near sun-synchronous obit.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2011 Nov 09, 09:44	6863	0.0008	480	490	94.31	97.41	309

Yaogan 12 2011-066B 37875						in space
Imaging satellite for natural resources surveys including crop yields, and help with natural disaster-reduction and prevention. Some of the data collected may amount to intelligence gathering. Sun synchronous orbit.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )	Desc Node Local Time
2011 Nov 09, 10:43	6866	0.0005	484	491	94.36	97.41	276	10:29
2011 Nov 17, 22:20	6872	0.0006	489	498	94.48	97.41	238	10:29
2012 May 09, 23:09	6869	0.0007	486	496	94.42	97.39	19	10:31
2013 Jul 15, 21:15	6862	0.0003	482	487	94.29	97.35	292	10:31
2013 Oct 29, 12:19	6868	0.0009	483	496	94.40	97.34	313	10:29

2011-072 CZ 2C Taiyuan Space Centre						2011 Nov 29, 18:50
Yaogan 13 2011-072A 37941						in space
Imaging satellite for natural resources surveys and, possibly, intelligence gathering. Specific tasks include land survey, crop yield assessment, and input to disaster monitoring and prevention plans. Precise launch time: 18:50:04 UTC.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )	Desc Node Local Time
2011 Dec 01, 10:26	6886	0.0005	505	511	94.78	97.11	272	01:56
2012 Apr 08, 12:37	6882	0.0006	499	508	94.69	97.12	164	01:34
2012 May 09, 23:11	6881	0.0008	497	508	94.67	97.12	73	01:29
2013 Jul 16, 05:26	6884	0.0003	504	508	94.74	97.37	97	00:51
2013 Oct 29, 04:00	6885	0.0001	506	507	94.75	97.38	115	00:48

2012-021 CZ 4B Taiyuan Space Centre						2012 May 10, 07:06
Yaogan 14 2012-021A 38257						in space
Imaging satellite for natural resources surveys and, possibly, intelligence gathering. Specific tasks include land survey, crop yield assessment, and input to disaster monitoring and prevention plans. Precise launch time: 07:06:04 UTC.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )	Desc Node Local Time
2012 May 10, 08:32	6850	0.0003	470	474	94.04	97.24	232	14:14
2012 May 15, 20:36	6854	0.0005	473	479	94.12	97.24	198	14:14
2013 Jul 15, 21:23	6853	0.0009	468	481	94.09	97.29	66	14:02
2013 Oct 29, 13:28	6852	0.0010	467	480	94.08	97.30	82	14:00

Tiantuo 1 2012-021B 38258						Re-entered - 2014 Nov 3 Life 907 days
Small, 9.3 kg, satellite built by China's National University of Defense Technology to test new satellite sub-systems. There is also a receiver to detect AIS (Automatic Information System) data transmissions from shipping.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2012 May 10, 10:05	6849	0.0001	469	471	94.01	97.24	164

2012-029 CZ 4C Taiyuan Space Centre						2012 May 29, 07:31
Yaogan 15 2012-029A 38354						in space
Remote sensing. Xinhua gave the objectives as "mainly used for scientific experiments, land resources survey, crop yield estimation of production and disaster prevention and mitigation". Precise launch time 07:31:04 UTC. Orbit is similar to Yaogan 8, 2009-72A/36121.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )	Desc Node Local Time
2012 May 29, 16:03	7582	0.0003	1202	1206	109.51	100.13	269	14:30
2013 Jul 16, 10:01	7582	0.0004	1201	1207	109.51	100.18	49	13:44
2013 Oct 29, 08:02	7582	0.0004	1201	1207	109.50	100.19	151	13:34
2013 Nov 20, 02:15	7582	0.0004	1201	1207	109.50	100.20	108	13:32

2012-066 CZ 4C Jiuquan Space Centre						2012 Nov 25, 04:06
Yaogan 16 Leader 2012-066A 39011						in space
Remote sensing satellite described as undertaking land resources surveys and crop yield estimation. However, its purpose may be ocean surveillance similar to the US NOSS triplet formations that orbited at a similar altitude and inclination. The ground track lies 75° to the west of Yaogan 9 (2010-009A/36413) so it surveys a similar area about five hours later. Precise launch time - 04:06:04.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2012 Nov 25, 05:51	7473	0.0013	1085	1105	107.15	63.39	10
2013 Sep 01, 11:31	7469	0.0026	1071	1110	107.06	63.38	353
2014 Aug 09, 18:14	7468	0.0056	1048	1132	107.05	63.38	358

Yaogan 16 Trailer 2012-066B 39012						in space
One of two further payloads forming the Yaogan 16 mission, and flying in formation with it. May be similar to the US NOSS triplet formations that orbited at a similar altitude and inclination.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2012 Nov 25, 09:27	7472	0.0014	1084	1104	107.14	63.38	13
2013 Sep 01, 11:31	7469	0.0025	1071	1109	107.06	63.38	352
2014 Aug 09, 18:14	7468	0.0056	1048	1132	107.05	63.38	358

Yaogan 16 Outlier 2012-066C 39013						in space
One of two further payloads forming the Yaogan 16 mission, and flying in formation with it. May be similar to the US NOSS triplet formations that orbited at a similar altitude and inclination.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2012 Nov 25, 09:27	7472	0.0015	1083	1105	107.13	63.38	15
2013 Sep 02, 01:47	7469	0.0026	1071	1109	107.06	63.38	352
2014 Aug 10, 03:09	7468	0.0056	1049	1132	107.05	63.38	358

2013-046 CZ 4C Jiuquan Space Centre						2013 Sep 1, 19:16
Yaogan 17 Outlier 2013-046A 39239						in space
Remote sensing satellite described as undertaking land resources surveys and crop yield estimation. However, its purpose may be ocean surveillance similar to the US NOSS triplet formations that orbited at a similar altitude and inclination. The ground track lies 75° to the east of Yaogan 9 (2010-009A/36413) so it surveys a similar area about five hours earlier. Precise launch time - 04:06:04.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2013 Sep 02, 05:47	7472	0.0023	1076	1111	107.12	63.41	36
2014 Aug 10, 00:38	7468	0.0038	1062	1119	107.05	63.41	6

Yaogan 17 Leader 2013-046B 39240						in space
One of two further payloads forming the Yaogan 17 mission, and flying in formation with it. May be similar to the US NOSS triplet formations that orbited at a similar altitude and inclination.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2013 Sep 02, 05:52	7472	0.0023	1077	1111	107.13	63.42	38
2014 Aug 10, 02:25	7468	0.0038	1062	1119	107.05	63.41	6

Yaogan 17 Follower 2013-046C 39241						in space
One of two further payloads forming the Yaogan 17 mission, and flying in formation with it. May be similar to the US NOSS triplet formations that orbited at a similar altitude and inclination.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2013 Sep 02, 05:52	7473	0.0021	1080	1111	107.16	63.42	38
2014 Aug 10, 00:38	7468	0.0039	1061	1119	107.05	63.41	5

2013-059 CZ 2C Taiyuan Space Centre						2013 Oct 29, 02:50
Yaogan 18 2013-059A 39363						Re-entered - 2021 Apr 7 Life 2717 days
Mission described the satellite as being "...used to conduct scientific experiments, carry out land surveys, monitor crop yields and aid in preventing and reducing natural disasters". The orbit altitude and Descending Node time are similar to the initial values for Yaogan 6 (2009-021A/34839) suggesting the new satellite may be a replacement for it, or supplementary to it.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )	Desc Node Local Time
2013 Oct 29, 11:46	6880	0.0013	492	511	94.65	97.55	265	09:56
2013 Oct 30, 05:17	6882	0.0012	496	512	94.70	97.56	245	09:56
2013 Oct 30, 16:43	6890	0.0001	511	512	94.86	97.55	254	09:56

2013-065 CZ 4C Taiyuan Space Centre						2013 Nov 20, 03:31
Yaogan 19 2013-065A 39410						in space
Described as being used for remote sensing but mission is probably military or government photo-reconnaissance.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )	Desc Node Local Time
2013 Nov 20, 17:32	7582	0.0004	1201	1207	109.51	100.48	163	10:29

2014-047 CZ 4C Jiuquan Space Centre						2014 Aug 9, 05:45
Yaogan 20 Outlier 2014-047A 40109						in space
Remote sensing satellite described as undertaking land resources surveys and crop yield estimation. However, its purpose may be ocean surveillance similar to the US NOSS triplet formations that orbited at a similar altitude and inclination. Placed in the same orbit plane as the Yaogan 9 cluster launched 2010 March.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2014 Aug 10, 02:36	7473	0.0012	1086	1104	107.16	63.40	39
2014 Aug 15, 05:40	7438	0.0008	1055	1066	106.41	63.39	354
2014 Sep 04, 04:18	7444	0.0006	1062	1070	106.53	63.41	54
2014 Sep 05, 03:24	7450	0.0007	1066	1077	106.66	63.40	320
2014 Sep 10, 11:43	7468	0.0007	1085	1095	107.05	63.40	8

Yaogan 20 Trailer 2014-047B 40110						in space
One of two further payloads forming the Yaogan 20 mission, and flying in formation with it. May be similar to the US NOSS triplet formations that orbited at a similar altitude and inclination.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2014 Aug 10, 02:36	7473	0.0011	1087	1103	107.16	63.40	38
2014 Aug 18, 10:36	7468	0.0004	1087	1093	107.05	63.40	19

Yaogan 20 Leader 2014-047C 40111						in space
One of two further payloads forming the Yaogan 20 mission, and flying in formation with it. May be similar to the US NOSS triplet formations that orbited at a similar altitude and inclination.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2014 Aug 10, 02:36	7473	0.0012	1086	1104	107.15	63.40	41
2014 Aug 20, 21:29	7468	0.0005	1087	1094	107.05	63.40	14

2014-053 CZ 4B Taiyuan Space Centre						2014 Sep 8, 03:22
Yaogan 21 2014-053A 40143						in space
Described as being used for remote sensing but mission is probably military or government photo-reconnaissance. Replacement for Yaogan 12.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )	Desc Node Local Time
2014 Sep 08, 12:50	6865	0.0010	480	494	94.35	97.42	260	10:30

Tiantuo 2 2014-053B 40144						in space
Small satellite from China's National University of Defense Technology including experimental/test equipment, a real-time video based Earth imaging system, and an AIS receiver for relaying ship location information from the worlds' oceans. 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
2014 Sep 08, 14:27	6863	0.0012	477	493	94.31	97.42	274	10:30

2014-063 CZ 4C Taiyuan Space Centre						2014 Oct 20, 06:31
Yaogan 22 2014-063A 40275						in space
Described as being used for remote sensing for natural resources surveys. Specific tasks include land survey, crop yield assessment, and input to disaster monitoring and prevention plans. Mission is probably military or government photo-reconnaissance.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )	Desc Node Local Time
2014 Oct 20, 07:44	7581	0.0008	1196	1209	109.48	100.32	127	13:29

2014-071 CZ 2C Taiyuan Space Centre						2014 Nov 14, 18:53
Yaogan 23 2014-071A 40305						in space
Described as being used for remote sensing for natural resources surveys. Specific tasks include land survey, crop yield assessment, and input to disaster monitoring and prevention plans. Mission is probably military or government photo-reconnaissance.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )	Desc Node Local Time
2014 Nov 15, 02:47	6881	0.0015	492	513	94.67	97.33	241	02:00
2014 Nov 16, 08:57	6882	0.0011	496	512	94.70	97.33	240	02:00
2014 Nov 17, 13:17	6891	0.0001	513	514	94.89	97.33	122	02:00

2014-072 CZ 2D Jiuquan Space Centre						2014 Nov 20, 07:12
Yaogan 24 2014-072A 40310						in space
Described as being used for remote sensing for natural resources surveys. Specific tasks include land survey, crop yield assessment, and input to disaster monitoring and prevention plans. Mission is probably military or government photo-reconnaissance.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )	Desc Node Local Time
2014 Nov 20, 09:54	7020	0.0017	630	653	97.55	97.91	208	13:30

2014-080 CZ 4C Jiuquan Space Centre						2014 Dec 10, 19:33
Yaogan 25 Leader 2014-080A 40338						in space
Remote sensing satellite described as undertaking land resources surveys and crop yield estimation. However, its purpose may be ocean surveillance similar to the US NOSS triplet formations that orbited at a similar altitude and inclination. Placed in the same orbit plane as the Yaogan 16 cluster launched 2012 Nov.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2014 Dec 11, 03:54	7471	0.0005	1089	1097	107.12	63.41	2

Yaogan 25 Trailer 2014-080B 40339						in space
One of two further payloads forming the Yaogan 25 mission, and flying in formation with it. May be similar to the US NOSS triplet formations that orbited at a similar altitude and inclination.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2014 Dec 11, 03:54	7472	0.0004	1091	1097	107.14	63.41	358
2014 Dec 15, 13:10	7462	0.0010	1077	1092	106.93	63.41	232

Yaogan 25 Outlier 2014-080C 40340						in space
One of two further payloads forming the Yaogan 25 mission, and flying in formation with it. May be similar to the US NOSS triplet formations that orbited at a similar altitude and inclination.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2014 Dec 11, 03:54	7472	0.0005	1091	1098	107.14	63.41	349
2014 Dec 12, 15:53	7480	0.0014	1092	1113	107.31	63.40	36
2014 Dec 14, 11:16	7491	0.0004	1110	1116	107.54	63.42	39
2015 Jan 01, 01:34	7491	0.0007	1108	1118	107.54	63.41	33
2015 Jan 11, 01:27	7468	0.0013	1081	1100	107.05	63.41	231

2014-088 CZ 4B Taiyuan Space Centre						2014 Dec 27, 03:22
Yaogan 26 2014-088A 40362						in space
Described as being used for remote sensing for natural resources surveys. Specific tasks include land survey, crop yield assessment, and input to disaster monitoring and prevention plans. Mission is probably military or government photo-reconnaissance.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )	Desc Node Local Time
2014 Dec 27, 12:47	6865	0.0007	482	491	94.34	97.44	241	10:29
2015 Jan 03, 03:26	6867	0.0003	487	491	94.39	97.44	211	10:30

2015-040 CZ 4C Taiyuan Space Centre						2015 Aug 27, 02:31
Yaogan 27 2015-040A 40878						in space
Described as being used for remote sensing for natural resources surveys. Specific tasks include land survey, crop yield assessment, and input to disaster monitoring and prevention plans. Mission is probably military or government photo-reconnaissance.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )	Desc Node Local Time
2015 Aug 27, 22:00	7578	0.0008	1195	1206	109.43	100.50	273	09:29

2015-064 CZ 4B Taiyuan Space Centre						2015 Nov 8, 07:06
Yaogan 28 2015-064A 41026						in space
Described as being used for remote sensing for natural resources surveys. Specific tasks include land survey, crop yield assessment, and input to disaster monitoring and prevention plans. Mission is probably military or government photo-reconnaissance.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )	Desc Node Local Time
2015 Nov 08, 11:28	6849	0.0017	460	482	94.02	97.24	255	14:14

2015-069 CZ 4C Taiyuan Space Centre						2015 Nov 26, 21:24
Yaogan 29 2015-069A 41038						in space
Described as being used for remote sensing for natural resources surveys. Specific tasks include land survey, crop yield assessment, and input to disaster monitoring and prevention plans. Mission is probably military or government photo-reconnaissance, possibly carrying a synthetic aperture radar.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )	Desc Node Local Time
2015 Nov 27, 03:19	6995	0.0003	615	619	97.04	97.84	33	04:30
2015 Nov 28, 10:51	7006	0.0002	626	629	97.27	97.84	159	04:30
2015 Nov 29, 15:17	7007	0.0001	628	629	97.28	97.84	121	04:30
2019 May 22, 03:38	7006	0.0002	626	630	97.27	97.97	78	04:28

2016-029 CZ 2D Jiuquan Space Centre						2016 May 15, 02:43
Yaogan 30 2016-029A 41473						in space
Imaging satellite for natural resources surveys and, possibly, intelligence gathering. Specific tasks include land survey, crop yield assessment, and input to disaster monitoring and prevention plans. The launch vehicle upper stage was not catalogued as it was caused to re-enter, probably over the southern polar region, after releasing the satellite.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )	Desc Node Local Time
2016 May 15, 09:01	7020	0.0020	628	656	97.57	98.07	232	09:00

2017-058 CZ 2C Xichang Space Centre						2017 Sep 29, 04:21
Yaogan 30-01 2017-058A 42945						in space
One of a triplet of simultaneously-launched satellites described as being for "electromagnetic environment detection and related technological tests”. That may indicate they are electronic intelligence gathering satellites. The three satellites are spaced at 120º intervals around the orbit.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2017 Sep 29, 12:12	6975	0.0007	592	601	96.62	35.01	204
2017 Oct 23, 04:44	6978	0.0004	597	603	96.68	35.00	275

Yaogan 30-02 2017-058B 42946						in space
One of a triplet of simultaneously-launched satellites described as being for "electromagnetic environment detection and related technological tests”. That may indicate they are electronic intelligence gathering satellites. The three satellites are spaced at 120º intervals around the orbit.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2017 Sep 29, 12:11	6975	0.0006	593	601	96.62	35.00	226
2017 Oct 24, 21:29	6978	0.0002	599	601	96.68	35.00	112

Yaogan 30-03 2017-058C 42947						in space
One of a triplet of simultaneously-launched satellites described as being for "electromagnetic environment detection and related technological tests”. That may indicate they are electronic intelligence gathering satellites. The three satellites are spaced at 120º intervals around the orbit.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2017 Sep 29, 11:54	6975	0.0006	593	601	96.63	35.00	208
2017 Oct 08, 06:37	6986	0.0005	605	612	96.86	34.99	141
2017 Oct 29, 01:46	6978	0.0006	595	604	96.68	35.00	7

2017-075 CZ 2C Xichang Space Centre						2017 Nov 24, 18:10
Yaogan 30-04 2017-075A 43028						in space
One of a triplet of simultaneously-launched satellites described as being for "electromagnetic environment detection and related technological tests”. That may indicate they are electronic intelligence gathering satellites. The three satellites are spaced at 120º intervals around the orbit.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2017 Nov 25, 00:24	6975	0.0010	590	604	96.62	35.00	293
2017 Dec 26, 01:11	6978	0.0003	598	601	96.68	34.99	285

Yaogan 30-05 2017-075B 43029						in space
One of a triplet of simultaneously-launched satellites described as being for "electromagnetic environment detection and related technological tests”. That may indicate they are electronic intelligence gathering satellites. The three satellites are spaced at 120º intervals around the orbit.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2017 Nov 25, 08:09	6975	0.0010	590	604	96.62	35.00	293
2017 Dec 16, 10:36	6978	0.0004	597	603	96.68	34.99	114

Yaogan 30-06 2017-075C 43030						in space
One of a triplet of simultaneously-launched satellites described as being for "electromagnetic environment detection and related technological tests”. That may indicate they are electronic intelligence gathering satellites. The three satellites are spaced at 120º intervals around the orbit.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2017 Nov 25, 12:58	6975	0.0010	590	604	96.62	35.00	296
2017 Dec 20, 20:14	6978	0.0004	597	603	96.68	34.99	327

2017-085 CZ 2C Xichang Space Centre						2017 Dec 25, 19:44
Yaogan 30-07 2017-085A 43081						in space
One of a triplet of simultaneously-launched satellites described as being for ‘"electromagnetic environment detection and related technological tests”. That may indicate they are electronic intelligence gathering satellites. The three satellites are spaced at 120º intervals around the orbit.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2017 Dec 26, 03:42	6975	0.0010	590	603	96.62	35.00	290
2018 Jan 01, 08:45	6969	0.0007	585	596	96.49	35.00	301
2018 Jan 14, 01:54	6978	0.0001	599	600	96.68	35.02	328

Yaogan 30-08 2017-085B 43082						in space
One of a triplet of simultaneously-launched satellites described as being for "electromagnetic environment detection and related technological tests”. That may indicate they are electronic intelligence gathering satellites. The three satellites are spaced at 120º intervals around the orbit.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2017 Dec 26, 05:21	6975	0.0010	590	604	96.62	35.00	292
2018 Jan 14, 13:41	6978	0.0005	596	603	96.68	35.00	121

Yaogan 30-09 2017-085C 43083						in space
One of a triplet of simultaneously-launched satellites described as being for "electromagnetic environment detection and related technological tests”. That may indicate they are electronic intelligence gathering satellites. The three satellites are spaced at 120º intervals around the orbit.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2017 Dec 26, 05:25	6975	0.0008	591	603	96.62	35.00	290
2017 Dec 31, 22:04	6984	0.0007	602	611	96.82	34.99	285
2018 Jan 02, 04:12	6986	0.0005	604	611	96.84	35.00	290
2018 Jan 17, 14:37	6978	0.0006	596	604	96.68	35.00	277

2018-011 CZ 2C Xichang Space Centre						2018 Jan 25, 05:39
Weina 1A 2018-011A 43169						in space
Small satellite - mission unknown.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2018 Jan 28, 10:21	6976	0.0005	594	602	96.65	35.00	290

Yaogan 30-10 2018-011B 43170						in space
One of a triplet of simultaneously-launched satellites described as being for "electromagnetic environment detection and related technological tests”. That may indicate they are electronic intelligence gathering satellites. The three satellites are spaced at 120º intervals around the orbit.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2018 Jan 26, 11:43	6975	0.0007	592	602	96.62	34.99	280
2018 Jan 30, 12:19	6985	0.0005	603	610	96.82	35.00	276
2018 Feb 04, 14:42	6978	0.0007	595	605	96.68	35.00	271

Yaogan 30-11 2018-011C 43171						in space
One of a triplet of simultaneously-launched satellites described as being for"electromagnetic environment detection and related technological tests”. That may indicate they are electronic intelligence gathering satellites. The three satellites are spaced at 120º intervals around the orbit.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2018 Jan 26, 13:37	6975	0.0008	591	602	96.62	34.99	283
2018 Jan 28, 12:22	6978	0.0005	596	603	96.69	35.00	336

Yaogan 30-12 2018-011D 43172						in space
One of a triplet of simultaneously-launched satellites described as being for "electromagnetic environment detection and related technological tests”. That may indicate they are electronic intelligence gathering satellites. The three satellites are spaced at 120º intervals around the orbit.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2018 Jan 26, 16:32	6975	0.0008	591	602	96.61	34.99	286
2018 Feb 08, 19:47	6978	0.0004	597	602	96.68	35.00	24

2018-034 CZ 4C Jiuquan Space Centre						2018 Apr 10, 04:25
Yaogan 31-01 Leader 2018-034A 43275						in space
Remote sensing satellite described as used for electromagnetic environment surveys and other related technology tests. Orbiting in close formation with the other two satellites from the launch, Its purpose may be signals or electronic intelligence gathering over the world's oceans, a similar task to the US NOSS triplet formations that orbited at a similar altitude and inclination.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2018 Apr 11, 11:58	7471	0.0009	1086	1100	107.11	63.41	38
2018 Jun 15, 00:53	7468	0.0013	1080	1100	107.05	63.41	8
2021 Jan 29, 03:47	7468	0.0099	1016	1164	107.05	63.40	3

Yaogan 31-01 Trailer 2018-034B 43276						in space
Remote sensing satellite described as used for electromagnetic environment surveys and other related technology tests. Orbiting in close formation with the other two satellites from the launch, Its purpose may be signals or electronic intelligence gathering over the world's oceans, a similar task to the US NOSS triplet formations that orbited at a similar altitude and inclination.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2018 Apr 11, 10:11	7472	0.0007	1089	1099	107.13	63.41	37
2018 Jun 15, 20:30	7468	0.0013	1080	1100	107.05	63.41	7
2021 Jan 29, 03:47	7468	0.0099	1016	1164	107.05	63.40	3

Yaogan 31-01 Outlier 2018-034C 43277						in space
Remote sensing satellite described as used for electromagnetic environment surveys and other related technology tests. Orbiting in close formation with the other two satellites from the launch, Its purpose may be signals or electronic intelligence gathering over the world's oceans, a similar task to the US NOSS triplet formations that orbited at a similar altitude and inclination.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2018 Apr 11, 10:11	7472	0.0008	1088	1100	107.13	63.41	45
2018 Apr 14, 08:14	7442	0.0019	1050	1077	106.48	63.41	3
2018 Apr 16, 12:47	7440	0.0016	1049	1073	106.43	63.41	4
2018 May 07, 05:36	7459	0.0015	1069	1092	106.84	63.40	32
2018 May 13, 04:17	7468	0.0011	1082	1098	107.05	63.41	7
2021 Jan 29, 03:47	7468	0.0099	1016	1164	107.05	63.41	3

Weina 1B 2018-034E 43279						in space
Small satellite - mission unknown.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2018 Apr 16, 00:51	7470	0.0010	1085	1100	107.10	63.41	36

2018-077 CZ 2C + YZ-1S Jiuquan Space Centre						2018 Oct 9, 02:43
Yaogan 32A 2018-077A 43642						in space
Mission described as remote sensing and "...electromagnetic environment surveys and other related technology tests". Probably electronic or signals intelligence gathering for the Chinese military or government. One of a pair of satellites carried on the same launch vehicle.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2018 Oct 10, 09:26	7075	0.0011	689	705	98.71	98.28	230

Yaogan 32B 2018-077B 43643						in space
Mission described as remote sensing and "...electromagnetic environment surveys and other related technology tests". Probably electronic or signals intelligence gathering for the Chinese military or government. One of a pair of satellites carried on the same launch vehicle.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2018 Oct 10, 09:26	7075	0.0011	689	704	98.70	98.28	235

failed to reach orbit CZ-4C Taiyuan Space Centre						2019 May 19, 22:49
Yaogan
Possibly a radar-carrying reconnaissance satellite. Lost when the launch vehicle third stage malunctioned. Referred to as Yaogan 33 in Chinese press in what may have been a bureaucratic error. Name was subsequently re-used in a later launch. Local time at descending node would have been about 06:00.

2019-045 CZ 2C Xichang Space Centre						2019 Jul 26, 03:57
Yaogan 30-13 2019-045A 44449						in space
One of a triplet of simultaneously-launched satellites described as being for "electromagnetic environment detection and related technological tests”. That may indicate they are electronic intelligence gathering satellites. The three satellites are spaced at 120º intervals around the orbit.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2019 Jul 26, 15:38	6975	0.0012	588	605	96.62	35.00	304
2019 Jul 31, 12:13	6985	0.0007	602	611	96.82	35.00	328
2019 Aug 15, 03:15	6977	0.0004	596	602	96.67	35.00	318

Yaogan 30-14 2019-045B 44450						in space
One of a triplet of simultaneously-launched satellites described as being for "electromagnetic environment detection and related technological tests”. That may indicate they are electronic intelligence gathering satellites. The three satellites are spaced at 120º intervals around the orbit.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2019 Jul 26, 17:56	6975	0.0011	589	605	96.62	35.00	302
2019 Jul 29, 18:55	6976	0.0010	591	605	96.64	35.00	325
2019 Aug 12, 00:43	6977	0.0010	592	606	96.66	34.99	84

Yaogan 30-15 2019-045C 44451						in space
One of a triplet of simultaneously-launched satellites described as being for "electromagnetic environment detection and related technological tests”. That may indicate they are electronic intelligence gathering satellites. The three satellites are spaced at 120º intervals around the orbit.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2019 Jul 26, 17:56	6975	0.0011	589	604	96.61	35.00	302
2019 Jul 30, 16:45	6967	0.0009	583	595	96.45	35.00	336
2019 Aug 14, 08:29	6977	0.0001	598	600	96.67	35.00	145

2020-021 CZ 2C Xichang Space Centre						2020 Mar 24, 03:43
Yaogan 30-16 2020-021A 45460						in space
One of a triplet of simultaneously-launched satellites described as being for "electromagnetic environment detection and related technological tests”. That may indicate they are electronic intelligence gathering satellites. The three satellites are spaced at 120º intervals around the orbit.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2020 Mar 25, 01:44	6975	0.0008	591	602	96.62	35.00	274
2020 Mar 28, 07:04	6981	0.0008	597	608	96.75	35.01	10
2020 Mar 29, 16:46	6988	0.0013	600	619	96.89	35.00	48
2020 Mar 31, 20:23	6990	0.0016	601	623	96.93	35.00	79
2020 Apr 11, 03:05	6977	0.0005	595	602	96.66	35.00	258

Yaogan 30-17 2020-021B 45461						in space
One of a triplet of simultaneously-launched satellites described as being for "electromagnetic environment detection and related technological tests”. That may indicate they are electronic intelligence gathering satellites. The three satellites are spaced at 120º intervals around the orbit.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2020 Mar 24, 19:18	6975	0.0008	591	602	96.61	35.00	272
2020 Mar 29, 04:10	6978	0.0007	595	605	96.69	34.99	1
2020 Mar 31, 15:22	6982	0.0008	598	610	96.77	35.00	46
2020 Apr 11, 00:56	6977	0.0003	597	601	96.67	35.00	190

Yaogan 30-18 2020-021C 45462						in space
One of a triplet of simultaneously-launched satellites described as being for "electromagnetic environment detection and related technological tests”. That may indicate they are electronic intelligence gathering satellites. The three satellites are spaced at 120º intervals around the orbit.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2020 Mar 25, 01:44	6975	0.0008	591	602	96.61	35.00	275

2020-076 CZ 2C Xichang Space Centre						2020 Oct 26, 15:19
Yaogan 30-19 2020-076A 46807						in space
One of a triplet of simultaneously-launched satellites described as being for "electromagnetic environment detection and related technological tests”. That may indicate they are electronic intelligence gathering satellites. The three satellites will be spaced at 120º intervals around the orbit.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2020 Oct 27, 03:42	6975	0.0011	589	604	96.62	34.99	299
2020 Oct 31, 18:56	6991	0.0006	609	618	96.96	34.99	231

Yaogan 30-20 2020-076B 46808						in space
One of a triplet of simultaneously-launched satellites described as being for "electromagnetic environment detection and related technological tests”. That may indicate they are electronic intelligence gathering satellites. The three satellites will be spaced at 120º intervals around the orbit.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2020 Oct 27, 03:42	6975	0.0011	589	604	96.61	34.99	300
2020 Oct 30, 21:56	6981	0.0007	598	607	96.74	35.00	285

Yaogan 30-21 2020-076C 46809						in space
One of a triplet of simultaneously-launched satellites described as being for "electromagnetic environment detection and related technological tests”. That may indicate they are electronic intelligence gathering satellites. The three satellites will be spaced at 120º intervals around the orbit.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2020 Oct 26, 21:36	6975	0.0011	589	604	96.61	34.99	296
2020 Oct 30, 20:05	6970	0.0008	586	598	96.53	35.00	312

Tianqi 7 2020-076D 46810						in space
6U Cubesat? - comsat providing messaging communication links from LEO including between Internet-connected items.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2020 Oct 26, 23:19	6972	0.0015	584	604	96.56	35.00	310

2020-103 CZ 4C Jiuquan Space Centre						2020 Dec 27, 15:44
Yaogan 33 2020-103A 47302						in space
Described as being used for remote sensing for natural resources surveys. Specific tasks include land survey, crop yield assessment, and input to disaster monitoring and prevention plans. Equipped with synthetic aperture radar for Earth imaging provided by the Institute of Space and Space Information Innovation of the Chinese Academy of Sciences. Mission is probably military or government.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )	Desc Node Local Time
2020 Dec 29, 01:40	7064	0.0001	685	687	98.48	98.27	261	22:00
2021 Jan 01, 16:51	7074	0.0001	696	696	98.69	98.27	101	22:00
2021 Jan 11, 05:37	7074	0.0001	695	697	98.69	98.27	108	22:00

Technology Test Satellite 2020-103B 47303						in space
Small satellite, possibly a Cubesat, name and mission details awaited but China's launch announcement seemed to suggests its purpose is related to that of Yaogan 33. After a series of orbit manoeuvres by both satellites, they settled into formation 2021 Jan 14 with Yaogan 33 trailing by about 24 minutes (approx 0.25 Earh circuits).
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2020 Dec 28, 03:27	7061	0.0001	682	683	98.41	98.27	290
2020 Dec 30, 20:21	7066	0.0006	683	692	98.52	98.27	150
2021 Jan 04, 18:38	7066	0.0006	683	692	98.51	98.27	138
2021 Jan 08, 04:49	7071	0.0005	689	696	98.62	98.27	119
2021 Jan 11, 06:52	7074	0.0001	695	697	98.69	98.27	98

2021-007 CZ 4C Jiuquan Space Centre						2021 Jan 29, 04:47
Yaogan 31-02 Outlier 2021-007A 47532						in space
Remote sensing satellite described as used for electromagnetic environment surveys and other related technology tests. Orbiting in close formation with the other two satellites from the launch, its purpose may be signals or electronic intelligence gathering over the world's oceans, a similar task to the US NOSS triplet formations that orbited at a similar altitude and inclination. Formation was set up Feb 24 after one month of phasing manoeuvres.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2021 Jan 29, 22:04	7472	0.0004	1091	1097	107.13	63.41	274
2021 Feb 02, 10:48	7493	0.0010	1108	1123	107.59	63.41	261

Yaogan 31-02 Trailer 2021-007B 47533						in space
Remote sensing satellite described as used for electromagnetic environment surveys and other related technology tests. Orbiting in close formation with the other two satellites from the launch, its purpose may be signals or electronic intelligence gathering over the world's oceans, a similar task to the US NOSS triplet formations that orbited at a similar altitude and inclination. Formation was set up Feb 24 after one month of phasing manoeuvres.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2021 Jan 30, 01:39	7472	0.0005	1091	1098	107.14	63.41	276
2021 Feb 02, 10:31	7458	0.0012	1071	1088	106.83	63.41	348

Yaogan 31-02 Leader 2021-007E 47536						in space
Remote sensing satellite described as used for electromagnetic environment surveys and other related technology tests. Orbiting in close formation with the other two satellites from the launch, its purpose may be signals or electronic intelligence gathering over the world's oceans, a similar task to the US NOSS triplet formations that orbited at a similar altitude and inclination. Formation was set up Feb 24 after one month of phasing manoeuvres.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2021 Jan 29, 09:34	7471	0.0002	1092	1095	107.12	63.40	258
2021 Feb 01, 10:40	7458	0.0012	1071	1088	106.82	63.41	265
2021 Feb 19, 11:18	7467	0.0010	1081	1096	107.02	63.41	295

2021-014 CZ 4C Jiuquan Space Centre						2021 Feb 24, 02:22
Yaogan 31-03 Trailer 2021-014A 47691						in space
Remote sensing satellite described as used for electromagnetic environment surveys and other related technology tests. Orbiting in close formation with the other two satellites from the launch, its purpose may be signals or electronic intelligence gathering over the world's oceans, a similar task to the US NOSS triplet formations that orbited at a similar altitude and inclination. This object was originally catalogued as 47692/2021-014B, Space-Track switched designations more than one week after launch.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2021 Feb 24, 12:30	7472	0.0006	1090	1099	107.14	63.41	271
2021 Feb 27, 08:44	7464	0.0013	1077	1096	106.97	63.41	219
2021 Mar 26, 07:23	7468	0.0010	1082	1098	107.05	63.41	304

Yaogan 31-03 Outlier 2021-014C 47693						in space
Remote sensing satellite described as used for electromagnetic environment surveys and other related technology tests. Orbiting in close formation with the other two satellites from the launch, its purpose may be signals or electronic intelligence gathering over the world's oceans, a similar task to the US NOSS triplet formations that orbited at a similar altitude and inclination.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2021 Feb 24, 14:17	7472	0.0006	1090	1098	107.13	63.41	267
2021 Feb 27, 03:04	7491	0.0014	1102	1123	107.54	63.41	257
2021 Mar 25, 12:15	7472	0.0011	1085	1101	107.12	63.41	285

Yaogan 31-03 Leader 2021-014E 47695						in space
Remote sensing satellite described as used for electromagnetic environment surveys and other related technology tests. Orbiting in close formation with the other two satellites from the launch, its purpose may be signals or electronic intelligence gathering over the world's oceans, a similar task to the US NOSS triplet formations that orbited at a similar altitude and inclination.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2021 Feb 24, 12:30	7471	0.0005	1089	1097	107.12	63.41	278
2021 Feb 25, 04:34	7469	0.0007	1086	1096	107.07	63.41	280
2021 Feb 26, 07:19	7463	0.0008	1079	1092	106.95	63.41	257
2021 Mar 26, 07:23	7468	0.0010	1082	1098	107.05	63.41	303

2021-020 CZ 4C Jiuquan Space Centre						2021 Mar 13, 02:19
Yaogan 31-04 Leader 2021-020A 47854						in space
Remote sensing satellite described as used for electromagnetic environment surveys and other related technology tests. Orbiting in close formation with the other two satellites from the launch, its purpose may be signals or electronic intelligence gathering over the world's oceans, a similar task to the US NOSS triplet formations that orbited at a similar altitude and inclination. Until 2021 Apr 8, this satellite was catalogued as 2021-020B/47855 - that ID now belongs to an item of debris.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2021 Mar 13, 14:14	7471	0.0003	1090	1096	107.11	63.41	297
2021 Mar 18, 06:40	7467	0.0009	1082	1095	107.02	63.41	286
2021 Apr 08, 14:35	7468	0.0009	1083	1097	107.05	63.41	300

Yaogan 31-04 Outlier 2021-020C 47856						in space
Remote sensing satellite described as used for electromagnetic environment surveys and other related technology tests. Orbiting in close formation with the other two satellites from the launch, its purpose may be signals or electronic intelligence gathering over the world's oceans, a similar task to the US NOSS triplet formations that orbited at a similar altitude and inclination.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2021 Mar 13, 17:48	7472	0.0004	1091	1097	107.13	63.41	282
2021 Mar 18, 05:34	7496	0.0010	1111	1126	107.65	63.41	344
2021 Apr 08, 13:20	7489	0.0006	1106	1116	107.50	63.41	296

Yaogan 31-04 Trailer 2021-020D 47857						in space
Remote sensing satellite described as used for electromagnetic environment surveys and other related technology tests. Orbiting in close formation with the other two satellites from the launch, its purpose may be signals or electronic intelligence gathering over the world's oceans, a similar task to the US NOSS triplet formations that orbited at a similar altitude and inclination.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2021 Mar 14, 11:40	7472	0.0004	1091	1097	107.13	63.41	279
2021 Mar 19, 07:42	7466	0.0009	1081	1095	107.00	63.41	286
2021 Apr 10, 04:03	7468	0.0010	1083	1097	107.05	63.41	302

2021-037 CZ 4C Jiuquan Space Centre						2021 Apr 30, 07:27
Yaogan 34 2021-037A 48340						in space
Mission details awaited but probably intelligence-related. Orbit is similar to the Yaogan 31 electronic surveillance satellites,and the Initial orbit plane has RAAN about three degrees to the west of that of the second Yaogan 31 triplet (launch no 2021-007).
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2021 Apr 30, 12:15	7472	0.0002	1093	1096	107.14	63.41	305
2021 May 01, 06:06	7467	0.0007	1084	1095	107.03	63.41	239
2021 May 01, 09:40	7463	0.0013	1076	1095	106.94	63.41	264
2021 May 01, 13:14	7463	0.0010	1077	1092	106.93	63.40	278
2021 May 07, 06:27	7468	0.0009	1083	1097	107.04	63.40	327

2021-039 CZ 2C Xichang Space Centre						2021 May 6, 18:11
Yaogan 30-22 2021-039A 48423						in space
One of a triplet of simultaneously-launched satellites described as being for "electromagnetic environment detection and related technological tests”. That may indicate they are electronic intelligence gathering satellites. The three satellites will be spaced at 120º intervals around the orbit. Catalogue Number and Designation to be confirmed.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2021 May 07, 02:06	6975	0.0007	592	602	96.62	35.00	215

Yaogan 30-23 2021-039B 48424						in space
One of a triplet of simultaneously-launched satellites described as being for "electromagnetic environment detection and related technological tests”. That may indicate they are electronic intelligence gathering satellites. The three satellites will be spaced at 120º intervals around the orbit. Catalogue Number and Designation to be confirmed.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2021 May 07, 02:06	6975	0.0007	592	601	96.61	35.00	224

Yaogan 30-24 2021-039C 48425						in space
One of a triplet of simultaneously-launched satellites described as being for "electromagnetic environment detection and related technological tests”. That may indicate they are electronic intelligence gathering satellites. The three satellites will be spaced at 120º intervals around the orbit. Catalogue Number and Designation to be confirmed.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2021 May 07, 02:01	6975	0.0007	591	601	96.61	35.00	221

Tianqi 12 2021-039D 48426						in space
Comsat providing messaging communication links from LEO including between Internet-connected items. First satellite for new Chinese commercial launch vehicle. Catalogue Number and Designation to be confirmed.
epoch (UTC)	s-m axis ( km )	ecc	perigee ( km )	apogee ( km )	period ( min )	incl ( ° )	ω ( ° )
2021 May 07, 00:20	6972	0.0009	588	600	96.56	35.02	277