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

2006/03/01 02:05:04 299 41 275 367 495 9.0 2.5e+14 9.6e+28 296 C2 C3 PHTX DST Java Movie

2006/03/02 00:05:04 105 27 51 70 252 2.6^*1 1.0e+14 1.4e+27 101 C2 C3 PHTX DST Java Movie Poor Event; Only C2

2006/03/02 04:05:04 243 39 45 87 165 1.1^*1 3.6e+13 3.6e+26 244 C2 C3 PHTX DST Java Movie Very Poor Event

2006/03/02 10:35:07 97 35 406 442 424 2.2^*1 1.5e+15 1.2e+30 96 C2 C3 PHTX DST Java Movie Only C3

2006/03/03 09:05:04 248 43 377 302 267 -6.3^*1 2.9e+13 2.0e+28 251 C2 C3 PHTX DST Java Movie Poor Event

2006/03/03 19:05:56 233 155 157 117 78 -1.5^*1 4.7e+14^*2 5.8e+28^*2 243 C2 C3 PHTX DST Java Movie Very Poor Event; Partial Halo

2006/03/05 04:05:04 139 50 169 254 314 4.0^*1 1.2e+14 1.7e+28 127 C2 C3 PHTX DST Java Movie Poor Event

2006/03/05 13:05:05 59 22 199 304 315 4.0^*1 4.2e+13 8.3e+27 67 C2 C3 PHTX DST Java Movie Poor Event

2006/03/06 12:05:04 53 26 143 160 306 3.2^*1 1.9e+13^*2 1.9e+27^*2 55 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2

2006/03/06 13:05:04 255 42 179 183 197 0.4^*1 1.8e+14 2.8e+28 261 C2 C3 PHTX DST Java Movie Poor Event

2006/03/10 03:24:44 290 128 114 180 225 2.0^*1 1.2e+15^*2 7.8e+28^*2 296 C2 C3 PHTX DST Java Movie Partial Halo

2006/03/10 10:05:04 95 16 173 163 0 -2.7^*1 ---- ---- 93 C2 C3 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2

2006/03/10 15:05:04 303 35 314 564 476 9.3^*1 ---- ---- 295 C2 C3 PHTX DST Java Movie

2006/03/10 17:05:06 103 44 145 160 341 4.2^*1 1.2e+14^*2 1.2e+28^*2 103 C2 C3 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2

2006/03/11 01:05:04 291 18 303 465 457 8.7^*1 ---- ---- 285 C2 C3 PHTX DST Java Movie Poor Event

2006/03/11 08:05:04 297 31 373 517 549 10.5^*1 1.5e+14 1.0e+29 296 C2 C3 PHTX DST Java Movie

2006/03/11 14:05:05 267 95 536 546 541 0.6 1.2e+15 1.7e+30 259 C2 C3 PHTX DST Java Movie

2006/03/12 02:05:04 32 22 165 171 246 1.6^*1 2.7e+13^*2 3.7e+27^*2 32 C2 C3 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2

2006/03/12 04:05:04 254 37 224 249 257 1.1^*1 2.7e+14 6.7e+28 252 C2 C3 PHTX DST Java Movie Poor Event

2006/03/12 11:05:04 251 33 352 442 412 4.4^*1 2.1e+14 1.3e+29 251 C2 C3 PHTX DST Java Movie Poor Event

2006/03/16 16:48:04 258 47 65 175 492 10.5^*1 ---- ---- 259 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2

2006/03/17 03:12:04 246 28 302 324 673 15.4^*1 5.0e+13 2.3e+28 244 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2

2006/03/17 09:00:05 115 36 646 912 844 22.6^*1 9.6e+14 2.0e+30 114 C2 C3 PHTX DST Java Movie

2006/03/17 20:01:02 114 28 158 166 232 1.4^*1 2.4e+13 3.0e+27 113 C2 C3 PHTX DST Java Movie Poor Event

2006/03/18 06:01:03 349 57 278 246 177 -2.6^*1 3.4e+14 1.3e+29 349 C2 C3 PHTX DST Java Movie Poor Event

2006/03/18 23:54:33 292 28 277 260 214 -1.7^*1 1.0e+14 4.0e+28 291 C2 C3 PHTX DST Java Movie Very Poor Event

2006/03/19 06:30:18 100 29 267 282 341 2.2^*1 1.2e+14 4.3e+28 95 C2 C3 195 PHTX DST Java Movie Poor Event

2006/03/19 15:30:18 296 22 435 435 436 0.0^*1 4.9e+13 4.6e+28 288 C2 C3 195 PHTX DST Java Movie Very Poor Event

2006/03/20 04:54:31 113 13 245 353 950 36.6^*1 ---- ---- 111 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2

2006/03/20 07:54:47 113 16 385 350 338 -2.6^*1 ---- ---- 112 C2 C3 195 PHTX DST Java Movie Very Poor Event

2006/03/20 17:06:17 235 67 317 524 477 9.3^*1 7.7e+14 3.9e+29 236 C2 C3 195 PHTX DST Java Movie

2006/03/21 03:06:20 26 68 306 410 400 5.2^*1 5.7e+14 2.7e+29 45 C2 C3 195 PHTX DST Java Movie

2006/03/21 11:30:20 235 25 401 559 810 28.5^*1 1.0e+13 8.1e+27 236 C2 C3 195 PHTX DST Java Movie Very Poor Event

2006/03/22 19:31:59 101 94 309 438 485 8.6 1.8e+15 8.8e+29 98 C2 C3 195 PHTX DST Java Movie

2006/03/23 04:26:04 240 18 241 237 231 -0.3^*1 ---- ---- 241 C2 C3 195 PHTX DST Java Movie Very Poor Event

2006/03/23 06:50:04 101 29 327 366 371 2.3 9.2e+13 4.9e+28 90 C2 C3 195 PHTX DST Java Movie

2006/03/24 15:05:25 88 12 209 245 270 1.7^*1 ---- ---- 84 C2 C3 195 PHTX DST Java Movie Very Poor Event

2006/03/25 01:50:05 81 30 259 291 313 2.0^*1 4.4e+14 1.5e+29 80 C2 C3 195 PHTX DST Java Movie Very Poor Event

2006/03/26 04:06:04 243 23 35 29 0 -0.7^*1 3.8e+13 2.3e+26 247 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2

2006/03/26 12:26:04 81 37 384 322 303 -4.4^*1 4.8e+14 3.5e+29 89 C2 C3 195 PHTX DST Java Movie

2006/03/26 23:26:04 89 82 470 395 255 -9.8^*1 9.6e+14 1.1e+30 71 C2 C3 195 PHTX DST Java Movie

2006/03/27 02:50:04 93 65 336 403 613 12.7^*1 7.7e+13 4.3e+28 91 C2 C3 195 PHTX DST Java Movie

2006/03/27 05:06:04 109 39 302 410 379 4.4 5.4e+14 2.4e+29 106 C2 C3 195 PHTX DST Java Movie

2006/03/27 07:27:13 98 52 152 354 333 4.8^*1 8.6e+14 1.0e+29 100 C2 C3 195 PHTX DST Java Movie

2006/03/27 20:26:04 302 76 418 728 710 20.4 3.1e+15 2.7e+30 305 C2 C3 195 PHTX DST Java Movie

2006/03/30 13:27:14 121 13 116 167 844 29.7^*1 ---- ---- 119 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2

2006/03/31 00:26:05 279 44 282 279 270 -0.4^*1 2.8e+14 1.1e+29 270 C2 C3 195 PHTX DST Java Movie Poor Event

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
2006/03/01	02:05:04	299	41	275	367	495	9.0	2.5e+14	9.6e+28	296	C2 C3 PHTX DST Java Movie
2006/03/02	00:05:04	105	27	51	70	252	2.6^*1	1.0e+14	1.4e+27	101	C2 C3 PHTX DST Java Movie	Poor Event; Only C2
2006/03/02	04:05:04	243	39	45	87	165	1.1^*1	3.6e+13	3.6e+26	244	C2 C3 PHTX DST Java Movie	Very Poor Event
2006/03/02	10:35:07	97	35	406	442	424	2.2^*1	1.5e+15	1.2e+30	96	C2 C3 PHTX DST Java Movie	Only C3
2006/03/03	09:05:04	248	43	377	302	267	-6.3^*1	2.9e+13	2.0e+28	251	C2 C3 PHTX DST Java Movie	Poor Event
2006/03/03	19:05:56	233	155	157	117	78	-1.5^*1	4.7e+14^*2	5.8e+28^*2	243	C2 C3 PHTX DST Java Movie	Very Poor Event; Partial Halo
2006/03/05	04:05:04	139	50	169	254	314	4.0^*1	1.2e+14	1.7e+28	127	C2 C3 PHTX DST Java Movie	Poor Event
2006/03/05	13:05:05	59	22	199	304	315	4.0^*1	4.2e+13	8.3e+27	67	C2 C3 PHTX DST Java Movie	Poor Event
2006/03/06	12:05:04	53	26	143	160	306	3.2^*1	1.9e+13^*2	1.9e+27^*2	55	C2 C3 PHTX DST Java Movie	Very Poor Event; Only C2
2006/03/06	13:05:04	255	42	179	183	197	0.4^*1	1.8e+14	2.8e+28	261	C2 C3 PHTX DST Java Movie	Poor Event
2006/03/10	03:24:44	290	128	114	180	225	2.0^*1	1.2e+15^*2	7.8e+28^*2	296	C2 C3 PHTX DST Java Movie	Partial Halo
2006/03/10	10:05:04	95	16	173	163	0	-2.7^*1	----	----	93	C2 C3 PHTX DST Java Movie	Very Poor Event; Only 3 points; Only C2
2006/03/10	15:05:04	303	35	314	564	476	9.3^*1	----	----	295	C2 C3 PHTX DST Java Movie
2006/03/10	17:05:06	103	44	145	160	341	4.2^*1	1.2e+14^*2	1.2e+28^*2	103	C2 C3 PHTX DST Java Movie	Very Poor Event; Only 3 points; Only C2
2006/03/11	01:05:04	291	18	303	465	457	8.7^*1	----	----	285	C2 C3 PHTX DST Java Movie	Poor Event
2006/03/11	08:05:04	297	31	373	517	549	10.5^*1	1.5e+14	1.0e+29	296	C2 C3 PHTX DST Java Movie
2006/03/11	14:05:05	267	95	536	546	541	0.6	1.2e+15	1.7e+30	259	C2 C3 PHTX DST Java Movie
2006/03/12	02:05:04	32	22	165	171	246	1.6^*1	2.7e+13^*2	3.7e+27^*2	32	C2 C3 PHTX DST Java Movie	Very Poor Event; Only 3 points; Only C2
2006/03/12	04:05:04	254	37	224	249	257	1.1^*1	2.7e+14	6.7e+28	252	C2 C3 PHTX DST Java Movie	Poor Event
2006/03/12	11:05:04	251	33	352	442	412	4.4^*1	2.1e+14	1.3e+29	251	C2 C3 PHTX DST Java Movie	Poor Event
2006/03/16	16:48:04	258	47	65	175	492	10.5^*1	----	----	259	C2 C3 PHTX DST Java Movie	Very Poor Event; Only C2
2006/03/17	03:12:04	246	28	302	324	673	15.4^*1	5.0e+13	2.3e+28	244	C2 C3 PHTX DST Java Movie	Very Poor Event; Only C2
2006/03/17	09:00:05	115	36	646	912	844	22.6^*1	9.6e+14	2.0e+30	114	C2 C3 PHTX DST Java Movie
2006/03/17	20:01:02	114	28	158	166	232	1.4^*1	2.4e+13	3.0e+27	113	C2 C3 PHTX DST Java Movie	Poor Event
2006/03/18	06:01:03	349	57	278	246	177	-2.6^*1	3.4e+14	1.3e+29	349	C2 C3 PHTX DST Java Movie	Poor Event
2006/03/18	23:54:33	292	28	277	260	214	-1.7^*1	1.0e+14	4.0e+28	291	C2 C3 PHTX DST Java Movie	Very Poor Event
2006/03/19	06:30:18	100	29	267	282	341	2.2^*1	1.2e+14	4.3e+28	95	C2 C3 195 PHTX DST Java Movie	Poor Event
2006/03/19	15:30:18	296	22	435	435	436	0.0^*1	4.9e+13	4.6e+28	288	C2 C3 195 PHTX DST Java Movie	Very Poor Event
2006/03/20	04:54:31	113	13	245	353	950	36.6^*1	----	----	111	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only C2
2006/03/20	07:54:47	113	16	385	350	338	-2.6^*1	----	----	112	C2 C3 195 PHTX DST Java Movie	Very Poor Event
2006/03/20	17:06:17	235	67	317	524	477	9.3^*1	7.7e+14	3.9e+29	236	C2 C3 195 PHTX DST Java Movie
2006/03/21	03:06:20	26	68	306	410	400	5.2^*1	5.7e+14	2.7e+29	45	C2 C3 195 PHTX DST Java Movie
2006/03/21	11:30:20	235	25	401	559	810	28.5^*1	1.0e+13	8.1e+27	236	C2 C3 195 PHTX DST Java Movie	Very Poor Event
2006/03/22	19:31:59	101	94	309	438	485	8.6	1.8e+15	8.8e+29	98	C2 C3 195 PHTX DST Java Movie
2006/03/23	04:26:04	240	18	241	237	231	-0.3^*1	----	----	241	C2 C3 195 PHTX DST Java Movie	Very Poor Event
2006/03/23	06:50:04	101	29	327	366	371	2.3	9.2e+13	4.9e+28	90	C2 C3 195 PHTX DST Java Movie
2006/03/24	15:05:25	88	12	209	245	270	1.7^*1	----	----	84	C2 C3 195 PHTX DST Java Movie	Very Poor Event
2006/03/25	01:50:05	81	30	259	291	313	2.0^*1	4.4e+14	1.5e+29	80	C2 C3 195 PHTX DST Java Movie	Very Poor Event
2006/03/26	04:06:04	243	23	35	29	0	-0.7^*1	3.8e+13	2.3e+26	247	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only C2
2006/03/26	12:26:04	81	37	384	322	303	-4.4^*1	4.8e+14	3.5e+29	89	C2 C3 195 PHTX DST Java Movie
2006/03/26	23:26:04	89	82	470	395	255	-9.8^*1	9.6e+14	1.1e+30	71	C2 C3 195 PHTX DST Java Movie
2006/03/27	02:50:04	93	65	336	403	613	12.7^*1	7.7e+13	4.3e+28	91	C2 C3 195 PHTX DST Java Movie
2006/03/27	05:06:04	109	39	302	410	379	4.4	5.4e+14	2.4e+29	106	C2 C3 195 PHTX DST Java Movie
2006/03/27	07:27:13	98	52	152	354	333	4.8^*1	8.6e+14	1.0e+29	100	C2 C3 195 PHTX DST Java Movie
2006/03/27	20:26:04	302	76	418	728	710	20.4	3.1e+15	2.7e+30	305	C2 C3 195 PHTX DST Java Movie
2006/03/30	13:27:14	121	13	116	167	844	29.7^*1	----	----	119	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only C2
2006/03/31	00:26:05	279	44	282	279	270	-0.4^*1	2.8e+14	1.1e+29	270	C2 C3 195 PHTX DST Java Movie	Poor Event

*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).