SOHO/LASCO CME Catalog

CME heights (with respect to the disk center) are measured at the fastest segment of the leading edge.

PA= Position Angle measured from Solar North in degrees (counter-clockwise)

Halo CMEs are indicated in the "Central PA" column. The letters ("S", "BA", "OA") in the brackets show type of halo CMEs. See examples.

Click on date to view Java script movie of the CME.

Click on time to see height-time measurements as a text file.

Click on speed to view height-time plots of the CME.

Beware of data gaps. Check for LASCO/C2 data gaps here.

A complete description of the catalog

Click here to search the entire catalog.

First C2 Appearance
Date Time [UT] Central
PA
[deg] Angular
Width [deg] Linear
Speed [km/s] 2nd-order Speed at final height [km/s] 2nd-order Speed at 20 Rs [km/s] Accel
[m/s²] Mass
[gram] Kinetic
Energy
[erg] MPA [deg] Movies, plots, & links Remarks

2003/12/01 03:08:41 83 41 552 --- --- --- 6.4e+13^*2 9.8e+28^*2 79 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 2 points

2003/12/01 09:50:05 287 4 403 307 0 -37.8^*1 ---- ---- 286 C2 C3 195 PHTX DST Java Movie

2003/12/01 10:50:06 328 14 303 --- --- --- ---- ---- 331 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 2 points

2003/12/01 12:50:05 236 19 533 642 1066 41.5^*1 ---- ---- 230 C2 C3 195 PHTX DST Java Movie

2003/12/01 20:26:05 69 6 426 211 0 -66.4^*1 ---- ---- 64 C2 C3 195 PHTX DST Java Movie Poor Event

2003/12/02 00:26:05 72 6 488 387 0 -46.5^*1 ---- ---- 69 C2 C3 195 PHTX DST Java Movie Poor Event; Only 3 points

2003/12/02 05:50:05 293 11 756 591 0 -51.7^*1 ---- ---- 285 C2 C3 195 PHTX DST Java Movie

2003/12/02 08:26:05 231 41 240 239 216 -0.5^*1 1.3e+14 3.7e+28 228 C2 C3 195 PHTX DST Java Movie UVCS Only C2

2003/12/02 10:26:06 261 >32 ---- --- --- --- 6.8e+13^*2 3.4e+23^*2 262 C2 C3 195 PHTX DST Java Movie UVCS Very Poor Event; Only C2; Uncertain Width; Unable to measure

2003/12/02 10:50:05 261 >150 1393 1490 1447 18.5 1.4e+16^*2 1.4e+32^*2 267 C2 C3 195 PHTX DST Java Movie Uncertain Width; Partial Halo

2003/12/03 14:06:05 294 20 532 389 0 -24.2 2.0e+14 2.8e+29 293 C2 C3 195 PHTX DST Java Movie

2003/12/03 18:06:05 195 95 347 527 527 12.3^*1 1.9e+15 1.2e+30 199 C2 C3 195 PHTX DST Java Movie Only C3

2003/12/04 09:50:05 97 27 374 389 579 8.7^*1 1.8e+14^*2 1.3e+29^*2 91 C2 C3 195 PHTX DST Java Movie Only C2

2003/12/04 19:50:05 94 6 529 540 716 10.7^*1 ---- ---- 94 C2 C3 195 PHTX DST Java Movie Only 3 points; Only C2

2003/12/05 04:06:05 90 30 403 427 590 8.5^*1 4.0e+14 3.3e+29 88 C2 C3 195 PHTX DST Java Movie

2003/12/05 20:42:31 227 41 294 330 383 4.6^*1 ---- ---- 234 C2 C3 195 PHTX DST Java Movie Poor Event; Only C3

2003/12/06 01:26:34 220 95 676 815 749 11.4 3.0e+15 6.9e+30 201 C2 C3 195 PHTX DST Java Movie

2003/12/07 06:30:05 93 42 349 349 345 -0.2^*1 1.4e+14^*2 8.8e+28^*2 89 C2 C3 195 PHTX DST Java Movie

2003/12/07 22:30:05 227 82 392 307 0 -12.4^*1 3.1e+15 2.4e+30 211 C2 C3 195 PHTX DST Java Movie Poor Event

2003/12/08 13:31:35 228 68 464 624 571 9.8 6.2e+15 6.7e+30 224 C2 C3 195 PHTX DST Java Movie

2003/12/08 20:54:31 1 24 503 598 776 18.5 8.7e+13 1.1e+29 6 C2 C3 195 PHTX DST Java Movie

2003/12/09 11:30:05 165 12 517 --- --- --- ---- ---- 166 C2 C3 195 PHTX DST Java Movie Poor Event; Only 2 points

2003/12/10 12:54:05 320 29 586 924 2079 177.2^*1 1.2e+14^*2 2.0e+29^*2 322 C2 C3 195 PHTX DST Java Movie

2003/12/11 04:54:05 345 15 341 323 243 -2.9 ---- ---- 346 C2 C3 195 PHTX DST Java Movie

2003/12/11 17:30:05 311 25 447 555 875 27.3^*1 4.0e+13^*2 4.0e+28^*2 310 C2 C3 195 PHTX DST Java Movie Poor Event

2003/12/11 19:31:37 138 29 123 170 254 2.4^*1 9.9e+14 7.5e+28 143 C2 C3 195 PHTX DST Java Movie Poor Event

2003/12/12 04:54:05 58 23 513 713 914 32.7^*1 2.0e+14 2.7e+29 56 C2 C3 195 PHTX DST Java Movie Poor Event

2003/12/12 12:30:05 186 105 214 308 277 2.4^*1 7.3e+15 1.7e+30 207 C2 C3 195 PHTX DST Java Movie

2003/12/13 04:30:05 182 99 368 409 407 2.5 7.3e+14 4.9e+29 167 C2 C3 195 PHTX DST Java Movie

2003/12/13 11:54:05 307 29 995 1342 1524 78.3^*1 1.3e+14 6.3e+29 307 C2 C3 195 PHTX DST Java Movie

2003/12/14 05:54:05 225 39 800 1176 1694 116.8^*1 6.7e+14 2.1e+30 225 C2 C3 195 PHTX DST Java Movie

2003/12/14 13:27:25 306 29 492 481 449 -2.2^*1 3.2e+14 3.8e+29 308 C2 C3 195 PHTX DST Java Movie Poor Event

2003/12/15 10:30:21 145 60 208 414 2094 183.3^*1 2.0e+14^*2 4.3e+28^*2 147 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2

2003/12/15 13:31:40 196 96 131 234 280 3.2^*1 3.5e+15 3.0e+29 189 C2 C3 195 PHTX DST Java Movie

2003/12/16 04:30:05 223 5 419 459 608 9.5^*1 ---- ---- 224 C2 C3 195 PHTX DST Java Movie UVCS Poor Event

2003/12/16 08:54:05 279 29 350 423 600 11.6 3.1e+14 1.9e+29 278 C2 C3 195 PHTX DST Java Movie

2003/12/16 11:06:05 259 60 354 487 631 14.7^*1 1.6e+14 9.9e+28 257 C2 C3 195 PHTX DST Java Movie

2003/12/17 02:54:31 83 17 288 369 590 12.7^*1 ---- ---- 83 C2 C3 195 PHTX DST Java Movie

2003/12/17 06:31:03 120 11 551 262 0 -144.4^*1 ---- ---- 123 C2 C3 195 PHTX DST Java Movie Poor Event

2003/12/17 09:54:30 103 15 350 253 0 -13.3^*1 ---- ---- 103 C2 C3 195 PHTX DST Java Movie

2003/12/17 19:54:05 119 10 495 589 1198 52.5^*1 ---- ---- 123 C2 C3 195 PHTX DST Java Movie Only C2

2003/12/18 05:30:05 101 10 506 386 0 -16.7^*1 ---- ---- 100 C2 C3 195 PHTX DST Java Movie

2003/12/18 07:54:05 231 4 619 --- --- --- ---- ---- 231 C2 C3 195 PHTX DST Java Movie Poor Event; Only 2 points; Only C2

2003/12/18 09:54:05 115 8 382 386 421 1.5^*1 ---- ---- 118 C2 C3 195 PHTX DST Java Movie Only 3 points

2003/12/19 15:54:05 265 35 239 174 0 -12.5^*1 4.7e+14 1.4e+29 266 C2 C3 195 PHTX DST Java Movie

2003/12/19 22:30:05 39 6 337 333 284 -1.6^*1 ---- ---- 38 C2 C3 195 PHTX DST Java Movie Only 3 points

2003/12/20 06:06:05 49 39 318 390 527 8.8^*1 8.2e+13 4.2e+28 48 C2 C3 195 PHTX DST Java Movie

2003/12/21 01:31:42 111 59 315 472 537 11.9 7.9e+12 3.9e+27 111 C2 C3 195 PHTX DST Java Movie

2003/12/21 19:31:44 116 30 664 1122 1766 140.6^*1 7.7e+13^*2 1.7e+29^*2 118 C2 C3 195 PHTX DST Java Movie Poor Event

2003/12/22 01:32:15 131 58 734 974 1369 76.2^*1 4.6e+14 1.2e+30 117 C2 C3 195 PHTX DST Java Movie

2003/12/22 07:54:05 85 17 494 200 0 -286.4^*1 ---- ---- 87 C2 C3 195 PHTX DST Java Movie Poor Event; Only 3 points; Only C2

2003/12/22 19:31:47 61 29 717 728 733 1.5 5.0e+14 1.3e+30 61 C2 C3 195 PHTX DST Java Movie

2003/12/22 21:32:11 247 51 360 340 230 -3.8 1.4e+14 8.9e+28 267 C2 C3 195 PHTX DST Java Movie

2003/12/23 09:06:05 265 36 329 312 0 -6.0^*1 1.0e+14 5.7e+28 270 C2 C3 195 PHTX DST Java Movie

2003/12/25 02:30:05 198 >201 519 454 435 -6.4 1.2e+15^*2 1.6e+30^*2 219 C2 C3 195 PHTX DST Java Movie Uncertain Width; Partial Halo

2003/12/25 09:06:05 257 57 176 246 829 27.7^*1 2.9e+14 4.4e+28 257 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2

2003/12/25 16:30:05 223 18 302 443 1389 78.5^*1 ---- ---- 222 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2

2003/12/27 22:20:05 103 4 622 1184 2568 273.4^*1 ---- ---- 103 C2 C3 PHTX DST Java Movie Very Poor Event; Only 3 points

2003/12/27 22:20:05 56 15 600 658 680 7.3 ---- ---- 50 C2 C3 PHTX DST Java Movie

2003/12/29 08:25:05 125 61 ---- --- --- --- ---- ---- 117 C2 C3 PHTX DST Java Movie Very Poor Event; Only C3; Unable to measure

First C2 Appearance Date Time [UT]	Central PA [deg]	Angular Width [deg]	Linear Speed [km/s]	2nd-order Speed at final height [km/s]	2nd-order Speed at 20 Rs [km/s]	Accel [m/s²]	Mass [gram]	Kinetic Energy [erg]	MPA [deg]	Movies, plots, & links	Remarks
2003/12/01	03:08:41	83	41	552	---	---	---	6.4e+13^*2	9.8e+28^*2	79	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only 2 points
2003/12/01	09:50:05	287	4	403	307	0	-37.8^*1	----	----	286	C2 C3 195 PHTX DST Java Movie
2003/12/01	10:50:06	328	14	303	---	---	---	----	----	331	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only 2 points
2003/12/01	12:50:05	236	19	533	642	1066	41.5^*1	----	----	230	C2 C3 195 PHTX DST Java Movie
2003/12/01	20:26:05	69	6	426	211	0	-66.4^*1	----	----	64	C2 C3 195 PHTX DST Java Movie	Poor Event
2003/12/02	00:26:05	72	6	488	387	0	-46.5^*1	----	----	69	C2 C3 195 PHTX DST Java Movie	Poor Event; Only 3 points
2003/12/02	05:50:05	293	11	756	591	0	-51.7^*1	----	----	285	C2 C3 195 PHTX DST Java Movie
2003/12/02	08:26:05	231	41	240	239	216	-0.5^*1	1.3e+14	3.7e+28	228	C2 C3 195 PHTX DST Java Movie UVCS	Only C2
2003/12/02	10:26:06	261	>32	----	---	---	---	6.8e+13^*2	3.4e+23^*2	262	C2 C3 195 PHTX DST Java Movie UVCS	Very Poor Event; Only C2; Uncertain Width; Unable to measure
2003/12/02	10:50:05	261	>150	1393	1490	1447	18.5	1.4e+16^*2	1.4e+32^*2	267	C2 C3 195 PHTX DST Java Movie	Uncertain Width; Partial Halo
2003/12/03	14:06:05	294	20	532	389	0	-24.2	2.0e+14	2.8e+29	293	C2 C3 195 PHTX DST Java Movie
2003/12/03	18:06:05	195	95	347	527	527	12.3^*1	1.9e+15	1.2e+30	199	C2 C3 195 PHTX DST Java Movie	Only C3
2003/12/04	09:50:05	97	27	374	389	579	8.7^*1	1.8e+14^*2	1.3e+29^*2	91	C2 C3 195 PHTX DST Java Movie	Only C2
2003/12/04	19:50:05	94	6	529	540	716	10.7^*1	----	----	94	C2 C3 195 PHTX DST Java Movie	Only 3 points; Only C2
2003/12/05	04:06:05	90	30	403	427	590	8.5^*1	4.0e+14	3.3e+29	88	C2 C3 195 PHTX DST Java Movie
2003/12/05	20:42:31	227	41	294	330	383	4.6^*1	----	----	234	C2 C3 195 PHTX DST Java Movie	Poor Event; Only C3
2003/12/06	01:26:34	220	95	676	815	749	11.4	3.0e+15	6.9e+30	201	C2 C3 195 PHTX DST Java Movie
2003/12/07	06:30:05	93	42	349	349	345	-0.2^*1	1.4e+14^*2	8.8e+28^*2	89	C2 C3 195 PHTX DST Java Movie
2003/12/07	22:30:05	227	82	392	307	0	-12.4^*1	3.1e+15	2.4e+30	211	C2 C3 195 PHTX DST Java Movie	Poor Event
2003/12/08	13:31:35	228	68	464	624	571	9.8	6.2e+15	6.7e+30	224	C2 C3 195 PHTX DST Java Movie
2003/12/08	20:54:31	1	24	503	598	776	18.5	8.7e+13	1.1e+29	6	C2 C3 195 PHTX DST Java Movie
2003/12/09	11:30:05	165	12	517	---	---	---	----	----	166	C2 C3 195 PHTX DST Java Movie	Poor Event; Only 2 points
2003/12/10	12:54:05	320	29	586	924	2079	177.2^*1	1.2e+14^*2	2.0e+29^*2	322	C2 C3 195 PHTX DST Java Movie
2003/12/11	04:54:05	345	15	341	323	243	-2.9	----	----	346	C2 C3 195 PHTX DST Java Movie
2003/12/11	17:30:05	311	25	447	555	875	27.3^*1	4.0e+13^*2	4.0e+28^*2	310	C2 C3 195 PHTX DST Java Movie	Poor Event
2003/12/11	19:31:37	138	29	123	170	254	2.4^*1	9.9e+14	7.5e+28	143	C2 C3 195 PHTX DST Java Movie	Poor Event
2003/12/12	04:54:05	58	23	513	713	914	32.7^*1	2.0e+14	2.7e+29	56	C2 C3 195 PHTX DST Java Movie	Poor Event
2003/12/12	12:30:05	186	105	214	308	277	2.4^*1	7.3e+15	1.7e+30	207	C2 C3 195 PHTX DST Java Movie
2003/12/13	04:30:05	182	99	368	409	407	2.5	7.3e+14	4.9e+29	167	C2 C3 195 PHTX DST Java Movie
2003/12/13	11:54:05	307	29	995	1342	1524	78.3^*1	1.3e+14	6.3e+29	307	C2 C3 195 PHTX DST Java Movie
2003/12/14	05:54:05	225	39	800	1176	1694	116.8^*1	6.7e+14	2.1e+30	225	C2 C3 195 PHTX DST Java Movie
2003/12/14	13:27:25	306	29	492	481	449	-2.2^*1	3.2e+14	3.8e+29	308	C2 C3 195 PHTX DST Java Movie	Poor Event
2003/12/15	10:30:21	145	60	208	414	2094	183.3^*1	2.0e+14^*2	4.3e+28^*2	147	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only 3 points; Only C2
2003/12/15	13:31:40	196	96	131	234	280	3.2^*1	3.5e+15	3.0e+29	189	C2 C3 195 PHTX DST Java Movie
2003/12/16	04:30:05	223	5	419	459	608	9.5^*1	----	----	224	C2 C3 195 PHTX DST Java Movie UVCS	Poor Event
2003/12/16	08:54:05	279	29	350	423	600	11.6	3.1e+14	1.9e+29	278	C2 C3 195 PHTX DST Java Movie
2003/12/16	11:06:05	259	60	354	487	631	14.7^*1	1.6e+14	9.9e+28	257	C2 C3 195 PHTX DST Java Movie
2003/12/17	02:54:31	83	17	288	369	590	12.7^*1	----	----	83	C2 C3 195 PHTX DST Java Movie
2003/12/17	06:31:03	120	11	551	262	0	-144.4^*1	----	----	123	C2 C3 195 PHTX DST Java Movie	Poor Event
2003/12/17	09:54:30	103	15	350	253	0	-13.3^*1	----	----	103	C2 C3 195 PHTX DST Java Movie
2003/12/17	19:54:05	119	10	495	589	1198	52.5^*1	----	----	123	C2 C3 195 PHTX DST Java Movie	Only C2
2003/12/18	05:30:05	101	10	506	386	0	-16.7^*1	----	----	100	C2 C3 195 PHTX DST Java Movie
2003/12/18	07:54:05	231	4	619	---	---	---	----	----	231	C2 C3 195 PHTX DST Java Movie	Poor Event; Only 2 points; Only C2
2003/12/18	09:54:05	115	8	382	386	421	1.5^*1	----	----	118	C2 C3 195 PHTX DST Java Movie	Only 3 points
2003/12/19	15:54:05	265	35	239	174	0	-12.5^*1	4.7e+14	1.4e+29	266	C2 C3 195 PHTX DST Java Movie
2003/12/19	22:30:05	39	6	337	333	284	-1.6^*1	----	----	38	C2 C3 195 PHTX DST Java Movie	Only 3 points
2003/12/20	06:06:05	49	39	318	390	527	8.8^*1	8.2e+13	4.2e+28	48	C2 C3 195 PHTX DST Java Movie
2003/12/21	01:31:42	111	59	315	472	537	11.9	7.9e+12	3.9e+27	111	C2 C3 195 PHTX DST Java Movie
2003/12/21	19:31:44	116	30	664	1122	1766	140.6^*1	7.7e+13^*2	1.7e+29^*2	118	C2 C3 195 PHTX DST Java Movie	Poor Event
2003/12/22	01:32:15	131	58	734	974	1369	76.2^*1	4.6e+14	1.2e+30	117	C2 C3 195 PHTX DST Java Movie
2003/12/22	07:54:05	85	17	494	200	0	-286.4^*1	----	----	87	C2 C3 195 PHTX DST Java Movie	Poor Event; Only 3 points; Only C2
2003/12/22	19:31:47	61	29	717	728	733	1.5	5.0e+14	1.3e+30	61	C2 C3 195 PHTX DST Java Movie
2003/12/22	21:32:11	247	51	360	340	230	-3.8	1.4e+14	8.9e+28	267	C2 C3 195 PHTX DST Java Movie
2003/12/23	09:06:05	265	36	329	312	0	-6.0^*1	1.0e+14	5.7e+28	270	C2 C3 195 PHTX DST Java Movie
2003/12/25	02:30:05	198	>201	519	454	435	-6.4	1.2e+15^*2	1.6e+30^*2	219	C2 C3 195 PHTX DST Java Movie	Uncertain Width; Partial Halo
2003/12/25	09:06:05	257	57	176	246	829	27.7^*1	2.9e+14	4.4e+28	257	C2 C3 195 PHTX DST Java Movie	Poor Event; Only C2
2003/12/25	16:30:05	223	18	302	443	1389	78.5^*1	----	----	222	C2 C3 195 PHTX DST Java Movie	Poor Event; Only C2
2003/12/27	22:20:05	103	4	622	1184	2568	273.4^*1	----	----	103	C2 C3 PHTX DST Java Movie	Very Poor Event; Only 3 points
2003/12/27	22:20:05	56	15	600	658	680	7.3	----	----	50	C2 C3 PHTX DST Java Movie
2003/12/29	08:25:05	125	61	----	---	---	---	----	----	117	C2 C3 PHTX DST Java Movie	Very Poor Event; Only C3; Unable to measure

*1 Acceleration is uncertain due to either poor height measurement or a small number of height-time measurements (See Section 3.4 of Yashiro et al. 2004 for details).
*2 Mass and Kinetic Energy are uncertain due to poor mass estimate. Mass measurement assumes that the CME material is in the sky-plane. Kinetic Energy is obtained from the mass and linear speed (see Vourlidas et al. 2000 for details).