THEMIS 1

 2007-004B

---

After prime mission, sent to the Moon as ARTEMIS P1. "Acceleration, Reconnection, Turbulence, and Electrodynamics of the Moon's Interaction with the Sun" (ARTEMIS)

In Jul 2009, the orbits of P1 and P2 began to be raised.

http://sscweb.gsfc.nasa.gov/cgi-bin/sscweb/Locator.cgi

THEMIS Probe B
Date	Time	Event	Orbit
2007 Mar 10			1868.59 461 x 87290 x 15.75
2007 Apr 10?		OTM
2007 Apr 11			1878.01 922 x 87166 x 15.21
2007 Jun 4			1878.89 1000 x 87120 x 14.2
2007 Jun 20			1878.88 992 x 87127 x 13.93
2007 Sep 19			1878.47 880 x 87225 x 12.3
2007 Sep 26			2148.04 1654 x 95884 x 12.9
2007 Oct 5	0846	Pass EL1:4
2007 Oct 11			3197.21 1745 x 129281 x 12.8
2007 Oct 24			5386.30 1568 x 189247 x 12.0
2007 Nov 26			5769.51 1684 x 198675 x 8.6
2007 Dec 4			5755.42 1657 x 198355 x 6.7
2008 Feb 15			5458.51 2286 x 190595 x 1.7
2008 Feb		Begin inclination burns
2008 Mar 1			5704.22 2324 x 196424 x 2.1
2008 Apr 10			5710.96 2936 x 195979 x 4.7
2008 May 27			5650.43 3420 x 193996 x 8.7
2008 Jul 18			5637.78 4046 x 193057 x 12.6
2008 Aug 29			5623.79 4425 x 192330 x 15.6
2008 Oct 3			5738.33 5615 x 193975 x 16.4
2008 Nov 11			5613.58 2157 x 194345 x 17.1
2009 May 18			5822.22 2806 x 198849 x 11.9
2009 Jun 3			5816.10 2763 x 198742 x 11.4
2009 Jul 20		Artemis P1, begin lunar burns
2009 Aug 1	1940s	ORM-01A 8.2 m/s burn
	2030s	ORM-01B
2009 Aug 5			5666.01 2355 x 195448 x 9.99
2009 Aug 10	1304s	ORM 02A
	1317	Perigee 1678 km
	1354s	ORM 02B
2009 Aug 12	2350	Apogee 228423 km
2009 Aug 15	1027	Perigee 1874 km
2009 Aug 17	2100	Apogee 228389 km
2009 Aug 20	0716		1146 x 228323 (SSC)
	0721	Perigee 1134 km
2009 Aug 20	0739	ORM 03A 7m/s
	0827	ORM 03B 10m/s
2009 Aug 23	0130	Apogee 249015 km
2009 Aug 25			7964.72 3375 x 248090 x 10.0
	1945	Perigee 2289 km
2009 Aug 28	1400	Apogee 248996 km
2009 Aug 31	0826	Perigee 2086 km
2009 Aug 31	1044	ORM 04A 12m/s
	1147	ORM 04B 14m/s
2009 Sep 3	1710	Apogee 285939 km
2009 Sep 7	0217	Perigee 2261 km
2009 Sep 10	1034	Apogee 284847 km
2009 Sep 13	1900	Perigee 2870 km
2009 Sep 13	2301	ORM 05A 12m/s
2009 Sep 14	0007	ORM 05B 7m/s
2009 Sep 16	1025	Enter Lunar sphere
2009 Sep 17	0049	Lunar flyby R=45612 km h = 43875
	1614	Depart lunar sphere
2009 Sep 18	1432	Apo 346273 km
2009 Sep 23	0740	Perigee 19712 km
2009 Sep 26			13723.77 19690 x 347310 x 8.8
2009 Sep 28	0230	Apo 347557 km
2009 Oct 2	2134	Peri 19806 km
2009 Oct 7	1513	Apogee 344846 km
2009 Oct 12	0934	Peri 22546 km
2009 Oct 12	1225s	FTM-1 0.9m/s
2009 Oct 14	1936	Pass 128972 km from Moon
2009 Oct 17	1027	Apo 355766 km
2009 Oct 22	1352	Peri 33072 km
2009 Oct 27	1939	Apo 358206 km
2009 Nov 2	0159	Peri 34222 km
2009 Nov 7	0421	Apo 351943 km
2009 Nov 12	0622	Peri 32267 km
2009 Nov 17		Apogee 347789 km
2009 Nov 22	0501s	FTM 2
2009 Nov 22	0546	Perigee 31614 km	31614 x 350414 (SSC)
2009 Nov 27		Apogee 350414 km
2009 Dec 2	0713s	FTM 3
2009 Dec 2	0844	Perigee 32851 km
2009 Dec 2			14611.66 32840 x 350368 x 10.6
2009 Dec 7		Apogee 356728 km
2009 Dec 7	0158	Enter L sphere
2009 Dec 8	0125	THEMIS B 'knee' encounter with Moon, R=17839 km h=16101
	0122	h=16830 km pass (CDF)
	0900	Apogee 345541 km
2009 Dec 9	0042	Depart L sphere
2009 Dec 13	2353	Perigee 52162 km
2009 Dec 19		Apogee 356389 km
2009 Dec 25	0158	Perigee 48909 km
2009 Dec 30		Apogee 354833 km
2010 Jan 4	2311	Perigee 47012 km
2010 Jan 7			47058 x 356845 x 59.5
2010 Jan 10		Apogee 356286 km
2010 Jan 15	1953	Perigee 43746 km
2010 Jan 21		Apogee 361070 km
2010 Jan 26	2102	Perigee 43674 km
2010 Jan 30	1111	Enter L sphere
2010 Jan 31	0813	S1 Lunar flyby 1 R=13730 km h=11992 hpost =12600
	0823	CDF peri 12340 km
2010 Feb 1	0529	Depart L sphere
2010 Feb 6	0940	h=377066 apo(lunar) = 266550
2010 Feb 12	1229	Enter L sphere
2010 Feb 13	1002	Flyby 2 at 3136 km (CDF)
2010 Feb 13	1006	S1+13d Lunar flyby 2 R=4694 h=2958 hpost=3290 km
2010 Feb 14	0714	Depart L sphere
2010 Feb 19			223471 x 1157008 x 22.71
2010 Feb ?		S1+46d DSM-1
2010 Feb 26		THEMIS B at 971000 km
2010 Mar 5		THEMIS B at 1.2Mkm
2010 Mar 10	1900	DSM 7.31m/s
2010 Mar 15	1720?	Apogee at 1191430 km
2010 Apr 5			12068 x 1101767 x 16.6
2010 Apr 13	2120	Earth flyby EGA 10644 km
2010 Apr 15	1715	Pass 147258 km from Moon
2010 Apr 20	0900	TCM5 0.18m/.s
2010 May 4	1742	Pass GSEx=1.2Mkm, enter SEL1 region
2010		Arrive SEL1 point WSB
		DSM 2
2010 Jun 6	1200	Range 1493696 km, Apogee 1492410 km
2010 Jun 20	2145	TCM6 0.18m/s
2010 Jul 5	0347	Pass GSEx=1.2Mkm inbound, leave SEL1
2010 Jul 19	2300	TCM7 0.66m/s
2010 Aug 18	0600	TCM8 2.24m/s
2010 Aug 23	0433?	Lissajous orbit insertion around EM-L2
		61300 km from Moon
2010 Aug 30	0436	Enter L sphere /1
2010 Sep 1	1900	Periline 42170 km
2010 Sep 5	0234	Depart L sphere
2010 Sep 10	2200	Apolune 75000
2010 Sep 13	0619	Enter L sphere /2
2010 Sep 16	0013	Perilune 39393 km
2010 Sep 18	1545	Depart L sphere
2010 Sep 26	1000	Apolune 80330 km
2010 Sep 29	1437	Enter L sphere /3
2010 Oct 2	0510	Perilune 34698 km
2010 Oct 4	2304	Depart L sphere
2010 Oct 11	1540	Apolune 77550 km
2010 Oct 14	0914	Enter L sphere /4
2010 Oct 17	0020	Perilune 38047 km
2010 Oct 19	1316	Depart L sphere
2010 Oct 22	1713	Apolune 81728 km
2010 Oct 30	0516	Enter L sphere /5
2010 Nov 1	2010	Perilune 32540 km
2010 Nov 4	1046	Depart L sphere
2010 Nov 11	1300	Apolune 80380 km
2010 Nov 14	1702	Enter L sphere/6
2010 Nov 17	0653	Perilune 37340 km
2010 Nov 19	1951	Depart L sphere
2010 Nov 22	1755	Apolune 79905 km
2010 Nov 29	2038	Enter L sphere/7
2010 Dec 2	1202	Periline 32865 km
2010 Dec 5	0113	Depart L sphere
2010 Dec 8	0620	Pseudo Apolune 80590 km
2010 Dec 12	1200	Apolune 81780 km
2010 Dec 15	2225	Enter L sphere/8
2010 Dec 18	1145	Perilune 35483 km
2010 Dec 21	0151	Depart L sphere
2010 Dec 23	1400	Apolune 77440 km
2010 Dec 30	0953	Enter L sphere/9
2011 Jan 1		Depart EM-L2
2011 Jan 2	0500	Perilune 29140 km
		Arrive EM-L1
		In EM-L1 Lissajous orbit	23656 x 58816 x 2387 dia
2011 Jan 5	1644	Apolune 59525 km
2011 Jan 9	0422	Perilune 33467 km
2011 Jan 11	2042	Depart L sphere
2011 Jan 13	1620?	Apolune 73470 km
2011 Jan 16		Approach to 67500 km
2011 Jan 20	0059	Enter L sphere/10
2011 Jan 22	1410	Perilune 32336 km
2011 Jan 25	0603	Depart L sphere
2011 Feb 2	1237	Enter L sphere/11
2011 Feb 5	0015	Peri 37670 km
2011 Feb 7	1103	Depart L sphere
2011 Feb 16	0135	Enter L sphere/12
2011 Feb 18	1410	Perilune 31735 km
2011 Feb 21	0653	Depart L sphere
2011 Mar 1	0711	Enter L sphere/13
2011 Mar 3	1800	Perilune 37682 km
2011 Mar 6	0530	Depart L sphere
2011 Mar 15	0258	Enter L sphere/14
2011 Mar 17	1440	Perilune 32086 km
2011 Mar 20	0915	Depart L sphere
2011 Mar 28	0011	Enter L sphere/15
2011 Mar 30	1200	Perilune 37620 km
2011 Apr 1	2334	Depart L sphere
2011 Apr 11	0141	Enter L sphere/16
2011 Apr 13	1315	Perilune 33158 km
2011 Apr 16	0806	Depart L sphere
2011 Apr 23	1643	Enter L sphere/17
2011 Apr 26	0540	Perilune 37188 km
2011 Apr 28	1739	Depart L sphere
2011 May 1	0047	Apolune 75220 km
2011 May 7	2053	Enter L sphere/18
2011 May 10	0815	Periline 34128 km
2011 May 13	0212	Depart L sphere
2011 May 16	0840	Approach to 64653 km
2011 May 20	1055	Enter L sphere/19
2011 May 23	0022	Perilune 36389 km
2011 May 25	1240	Depart L sphere
2011 Jun 3	1505	Enter L sphere/20
2011 Jun 6	0230	Perilune 34349 km
2011 Jun 8	1854	Depart L sphere
2011 Jun 16	0722	Enter L sphere/21
2011 Jun 17	2121	Perilune 35079 km
2011 Jun 21	1142	Depart L sphere
2011 Jun 24	1532	Enter L sphere/22
2011 Jun 27	1404	Begin LOI burn 50.3m/s at 5114 km
	1542	Perilune 1515 km
	1631	LOI cutoff	3543 x 27000 km
2011		Enter lunar orbit, retrograde
2011 Jul 2			193 x 26308 x 171.32
2015 Oct 23			550 x 16065 x 164.5
2017 Aug 3			317 x 16211 x 170.3
2017 Oct 8			515 x 18761 x 158.3
2018 Jun 1			608 x 15938 x 155.2