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

2008/02/01 00:30:04 59 19 186 173 149 -0.8^*1 ---- ---- 69 C2 C3 195 PHTX DST Java Movie Poor Event

2008/02/01 07:31:38 299 12 222 171 0 -12.0^*1 ---- ---- 290 C2 C3 195 PHTX DST Java Movie Poor Event

2008/02/01 17:54:04 116 34 194 247 552 11.8^*1 9.7e+12 1.8e+27 116 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2

2008/02/02 05:30:04 62 21 135 179 538 11.8^*1 5.5e+12 5.1e+26 65 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2

2008/02/02 07:31:41 134 11 252 262 312 1.6^*1 ---- ---- 128 C2 C3 195 PHTX DST Java Movie Very Poor Event

2008/02/02 13:31:44 348 4 256 227 0 -17.2^*1 ---- ---- 348 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2

2008/02/03 05:30:04 121 8 195 292 1405 85.0^*1 ---- ---- 117 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2

2008/02/03 10:34:03 121 9 215 326 966 39.0^*1 ---- ---- 116 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2

2008/02/04 00:30:04 80 71 364 433 511 7.1^*1 4.0e+14 2.6e+29 71 C2 C3 195 PHTX DST Java Movie Very Poor Event

2008/02/04 02:06:04 310 26 255 280 294 1.4^*1 4.0e+14 1.3e+29 310 C2 C3 195 PHTX DST Java Movie Poor Event

2008/02/04 09:54:04 97 164 306 277 275 -1.4^*1 1.1e+15^*2 5.3e+29^*2 106 C2 C3 195 PHTX DST Java Movie Poor Event; Partial Halo

2008/02/04 22:31:46 23 5 179 221 651 17.0^*1 ---- ---- 28 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2

2008/02/05 03:06:04 273 11 302 208 0 -34.8^*1 ---- ---- 268 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2

2008/02/05 05:30:04 257 59 368 420 529 7.4^*1 3.4e+14 2.3e+29 265 C2 C3 195 PHTX DST Java Movie

2008/02/05 06:30:04 138 12 635 831 1760 135.2^*1 ---- ---- 131 C2 C3 195 PHTX DST Java Movie Poor Event

2008/02/05 10:06:04 147 43 226 297 587 13.4^*1 4.1e+13 1.0e+28 138 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2

2008/02/05 11:18:04 67 9 190 244 303 3.5^*1 ---- ---- 74 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C3

2008/02/05 15:06:05 44 39 127 144 227 1.8^*1 1.8e+13 1.4e+27 50 C2 C3 195 PHTX DST Java Movie Very Poor Event

2008/02/06 12:54:06 71 20 215 284 407 6.8^*1 1.8e+13 4.2e+27 70 C2 C3 195 PHTX DST Java Movie Very Poor Event

2008/02/07 20:58:39 33 7 193 354 1496 94.3^*1 ---- ---- 40 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2

2008/02/07 23:30:04 156 8 98 18 0 -32.6^*1 ---- ---- 150 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2

2008/02/08 02:30:04 229 19 203 298 328 4.4^*1 ---- ---- 231 C2 C3 195 PHTX DST Java Movie Poor Event

2008/02/08 06:54:05 346 7 314 235 0 -43.7^*1 ---- ---- 347 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2

2008/02/08 08:54:04 348 12 607 459 0 -48.0^*1 ---- ---- 346 C2 C3 195 PHTX DST Java Movie Poor Event

2008/02/08 09:54:04 237 33 194 229 251 1.7^*1 8.5e+14 1.6e+29 233 C2 C3 195 PHTX DST Java Movie Poor Event

2008/02/09 02:30:04 224 12 388 426 482 4.8^*1 ---- ---- 232 C2 C3 195 PHTX DST Java Movie Poor Event

2008/02/09 05:54:04 106 18 285 343 615 13.6^*1 ---- ---- 97 C2 C3 195 PHTX DST Java Movie Poor Event

2008/02/09 16:30:04 226 6 581 609 614 3.1^*1 ---- ---- 232 C2 C3 195 PHTX DST Java Movie Poor Event

2008/02/09 19:54:05 144 7 163 165 235 1.2^*1 ---- ---- 139 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2

2008/02/10 09:54:04 166 4 452 397 0 -52.8^*1 ---- ---- 164 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2

2008/02/10 18:54:04 221 7 324 403 488 7.9^*1 ---- ---- 224 C2 C3 195 PHTX DST Java Movie Poor Event

2008/02/11 00:54:05 288 5 313 278 208 -3.3^*1 ---- ---- 288 C2 C3 195 PHTX DST Java Movie Very Poor Event

2008/02/12 01:30:04 243 67 266 452 394 6.3^*1 3.5e+15 1.2e+30 239 C2 C3 195 PHTX DST Java Movie

2008/02/13 10:30:21 54 130 157 225 237 2.3^*1 3.0e+15^*2 3.7e+29^*2 83 C2 C3 195 PHTX DST Java Movie Poor Event; Partial Halo

2008/02/15 01:54:04 90 53 163 364 340 5.0^*1 2.7e+15 3.6e+29 90 C2 C3 195 PHTX DST Java Movie

2008/02/16 08:30:04 242 10 379 203 0 -70.7^*1 ---- ---- 246 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2

2008/02/16 10:30:20 283 24 284 346 390 5.0^*1 1.2e+14 4.9e+28 290 C2 C3 195 PHTX DST Java Movie Very Poor Event

2008/02/16 16:30:04 77 26 189 282 287 3.0^*1 3.5e+14 6.3e+28 79 C2 C3 195 PHTX DST Java Movie

2008/02/17 00:30:04 80 13 226 249 276 1.5^*1 ---- ---- 83 C2 C3 195 PHTX DST Java Movie Poor Event

2008/02/17 02:30:04 120 40 130 106 0 -7.8^*1 2.5e+13 2.1e+27 118 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2

2008/02/17 04:30:04 159 6 354 728 2841 331.2^*1 ---- ---- 155 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2

2008/02/17 07:30:05 297 37 203 315 414 8.2^*1 2.5e+14 5.2e+28 288 C2 C3 195 PHTX DST Java Movie Very Poor Event

2008/02/17 12:54:04 356 3 192 280 1077 47.3^*1 ---- ---- 357 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2

2008/02/17 12:54:04 237 5 129 146 481 9.1^*1 ---- ---- 238 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2

2008/02/17 12:54:04 142 9 174 321 1237 65.8^*1 ---- ---- 134 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2

2008/02/18 03:30:04 355 6 324 431 1527 94.7^*1 ---- ---- 357 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2

2008/02/18 10:54:04 289 13 195 245 335 4.4^*1 ---- ---- 287 C2 C3 195 PHTX DST Java Movie Very Poor Event

2008/02/19 00:30:04 233 7 451 398 0 -25.2^*1 ---- ---- 239 C2 C3 195 PHTX DST Java Movie Poor Event

2008/02/23 21:24:04 60 64 246 398 333 4.8 3.1e+15 9.5e+29 71 C2 PHTX DST Java Movie

2008/02/24 10:00:04 206 6 486 380 0 -100.2^*1 ---- ---- 210 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2

2008/02/24 10:12:05 74 25 378 565 512 9.0^*1 2.9e+12 2.1e+27 91 C2 C3 PHTX DST Java Movie

2008/02/25 08:00:04 125 9 352 295 0 -9.2^*1 ---- ---- 125 C2 C3 PHTX DST Java Movie Poor Event

2008/02/25 16:12:06 267 16 743 1348 1839 137.4^*1 ---- ---- 273 C2 C3 PHTX DST Java Movie Very Poor Event

2008/02/25 21:12:07 68 5 309 317 334 1.1^*1 ---- ---- 72 C2 C3 PHTX DST Java Movie Very Poor Event

2008/02/25 23:12:07 70 8 214 269 448 8.4^*1 ---- ---- 71 C2 C3 PHTX DST Java Movie Very Poor Event

2008/02/26 02:00:04 64 4 290 343 483 8.5^*1 ---- ---- 69 C2 C3 PHTX DST Java Movie Very Poor Event

2008/02/26 15:24:04 276 53 126 218 204 1.7^*1 3.5e+15 2.8e+29 272 C2 C3 PHTX DST Java Movie Poor Event

2008/02/27 01:18:04 68 7 196 188 168 -0.7^*1 ---- ---- 69 C2 C3 PHTX DST Java Movie Very Poor Event

2008/02/28 10:50:04 66 16 223 232 252 0.8^*1 ---- ---- 68 C2 C3 195 PHTX DST Java Movie Very Poor Event

2008/02/28 19:48:04 273 54 253 348 547 11.0^*1 5.0e+13 1.6e+28 270 C2 C3 195 PHTX DST Java Movie Very Poor Event

2008/02/29 01:26:04 270 54 195 257 514 10.2^*1 9.1e+13 1.7e+28 264 C2 C3 195 PHTX DST Java Movie Very Poor Event

2008/02/29 06:26:04 266 48 125 123 112 -0.2^*1 9.1e+13 7.1e+27 265 C2 C3 195 PHTX DST Java Movie Very Poor Event

2008/02/29 13:26:04 268 35 187 178 0 -2.2^*1 7.3e+11 1.3e+26 271 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2

2008/02/29 15:06:04 60 7 306 367 412 5.2^*1 ---- ---- 65 C2 C3 195 PHTX DST Java Movie Very Poor Event

2008/02/29 21:54:04 109 5 227 132 0 -45.3^*1 ---- ---- 109 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2

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
2008/02/01	00:30:04	59	19	186	173	149	-0.8^*1	----	----	69	C2 C3 195 PHTX DST Java Movie	Poor Event
2008/02/01	07:31:38	299	12	222	171	0	-12.0^*1	----	----	290	C2 C3 195 PHTX DST Java Movie	Poor Event
2008/02/01	17:54:04	116	34	194	247	552	11.8^*1	9.7e+12	1.8e+27	116	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only C2
2008/02/02	05:30:04	62	21	135	179	538	11.8^*1	5.5e+12	5.1e+26	65	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only C2
2008/02/02	07:31:41	134	11	252	262	312	1.6^*1	----	----	128	C2 C3 195 PHTX DST Java Movie	Very Poor Event
2008/02/02	13:31:44	348	4	256	227	0	-17.2^*1	----	----	348	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only C2
2008/02/03	05:30:04	121	8	195	292	1405	85.0^*1	----	----	117	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only 3 points; Only C2
2008/02/03	10:34:03	121	9	215	326	966	39.0^*1	----	----	116	C2 C3 195 PHTX DST Java Movie	Poor Event; Only C2
2008/02/04	00:30:04	80	71	364	433	511	7.1^*1	4.0e+14	2.6e+29	71	C2 C3 195 PHTX DST Java Movie	Very Poor Event
2008/02/04	02:06:04	310	26	255	280	294	1.4^*1	4.0e+14	1.3e+29	310	C2 C3 195 PHTX DST Java Movie	Poor Event
2008/02/04	09:54:04	97	164	306	277	275	-1.4^*1	1.1e+15^*2	5.3e+29^*2	106	C2 C3 195 PHTX DST Java Movie	Poor Event; Partial Halo
2008/02/04	22:31:46	23	5	179	221	651	17.0^*1	----	----	28	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only C2
2008/02/05	03:06:04	273	11	302	208	0	-34.8^*1	----	----	268	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only C2
2008/02/05	05:30:04	257	59	368	420	529	7.4^*1	3.4e+14	2.3e+29	265	C2 C3 195 PHTX DST Java Movie
2008/02/05	06:30:04	138	12	635	831	1760	135.2^*1	----	----	131	C2 C3 195 PHTX DST Java Movie	Poor Event
2008/02/05	10:06:04	147	43	226	297	587	13.4^*1	4.1e+13	1.0e+28	138	C2 C3 195 PHTX DST Java Movie	Poor Event; Only C2
2008/02/05	11:18:04	67	9	190	244	303	3.5^*1	----	----	74	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only C3
2008/02/05	15:06:05	44	39	127	144	227	1.8^*1	1.8e+13	1.4e+27	50	C2 C3 195 PHTX DST Java Movie	Very Poor Event
2008/02/06	12:54:06	71	20	215	284	407	6.8^*1	1.8e+13	4.2e+27	70	C2 C3 195 PHTX DST Java Movie	Very Poor Event
2008/02/07	20:58:39	33	7	193	354	1496	94.3^*1	----	----	40	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only 3 points; Only C2
2008/02/07	23:30:04	156	8	98	18	0	-32.6^*1	----	----	150	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only 3 points; Only C2
2008/02/08	02:30:04	229	19	203	298	328	4.4^*1	----	----	231	C2 C3 195 PHTX DST Java Movie	Poor Event
2008/02/08	06:54:05	346	7	314	235	0	-43.7^*1	----	----	347	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only C2
2008/02/08	08:54:04	348	12	607	459	0	-48.0^*1	----	----	346	C2 C3 195 PHTX DST Java Movie	Poor Event
2008/02/08	09:54:04	237	33	194	229	251	1.7^*1	8.5e+14	1.6e+29	233	C2 C3 195 PHTX DST Java Movie	Poor Event
2008/02/09	02:30:04	224	12	388	426	482	4.8^*1	----	----	232	C2 C3 195 PHTX DST Java Movie	Poor Event
2008/02/09	05:54:04	106	18	285	343	615	13.6^*1	----	----	97	C2 C3 195 PHTX DST Java Movie	Poor Event
2008/02/09	16:30:04	226	6	581	609	614	3.1^*1	----	----	232	C2 C3 195 PHTX DST Java Movie	Poor Event
2008/02/09	19:54:05	144	7	163	165	235	1.2^*1	----	----	139	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only C2
2008/02/10	09:54:04	166	4	452	397	0	-52.8^*1	----	----	164	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only 3 points; Only C2
2008/02/10	18:54:04	221	7	324	403	488	7.9^*1	----	----	224	C2 C3 195 PHTX DST Java Movie	Poor Event
2008/02/11	00:54:05	288	5	313	278	208	-3.3^*1	----	----	288	C2 C3 195 PHTX DST Java Movie	Very Poor Event
2008/02/12	01:30:04	243	67	266	452	394	6.3^*1	3.5e+15	1.2e+30	239	C2 C3 195 PHTX DST Java Movie
2008/02/13	10:30:21	54	130	157	225	237	2.3^*1	3.0e+15^*2	3.7e+29^*2	83	C2 C3 195 PHTX DST Java Movie	Poor Event; Partial Halo
2008/02/15	01:54:04	90	53	163	364	340	5.0^*1	2.7e+15	3.6e+29	90	C2 C3 195 PHTX DST Java Movie
2008/02/16	08:30:04	242	10	379	203	0	-70.7^*1	----	----	246	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only C2
2008/02/16	10:30:20	283	24	284	346	390	5.0^*1	1.2e+14	4.9e+28	290	C2 C3 195 PHTX DST Java Movie	Very Poor Event
2008/02/16	16:30:04	77	26	189	282	287	3.0^*1	3.5e+14	6.3e+28	79	C2 C3 195 PHTX DST Java Movie
2008/02/17	00:30:04	80	13	226	249	276	1.5^*1	----	----	83	C2 C3 195 PHTX DST Java Movie	Poor Event
2008/02/17	02:30:04	120	40	130	106	0	-7.8^*1	2.5e+13	2.1e+27	118	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only C2
2008/02/17	04:30:04	159	6	354	728	2841	331.2^*1	----	----	155	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only 3 points; Only C2
2008/02/17	07:30:05	297	37	203	315	414	8.2^*1	2.5e+14	5.2e+28	288	C2 C3 195 PHTX DST Java Movie	Very Poor Event
2008/02/17	12:54:04	356	3	192	280	1077	47.3^*1	----	----	357	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only 3 points; Only C2
2008/02/17	12:54:04	237	5	129	146	481	9.1^*1	----	----	238	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only 3 points; Only C2
2008/02/17	12:54:04	142	9	174	321	1237	65.8^*1	----	----	134	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only C2
2008/02/18	03:30:04	355	6	324	431	1527	94.7^*1	----	----	357	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only 3 points; Only C2
2008/02/18	10:54:04	289	13	195	245	335	4.4^*1	----	----	287	C2 C3 195 PHTX DST Java Movie	Very Poor Event
2008/02/19	00:30:04	233	7	451	398	0	-25.2^*1	----	----	239	C2 C3 195 PHTX DST Java Movie	Poor Event
2008/02/23	21:24:04	60	64	246	398	333	4.8	3.1e+15	9.5e+29	71	C2 PHTX DST Java Movie
2008/02/24	10:00:04	206	6	486	380	0	-100.2^*1	----	----	210	C2 C3 PHTX DST Java Movie	Very Poor Event; Only C2
2008/02/24	10:12:05	74	25	378	565	512	9.0^*1	2.9e+12	2.1e+27	91	C2 C3 PHTX DST Java Movie
2008/02/25	08:00:04	125	9	352	295	0	-9.2^*1	----	----	125	C2 C3 PHTX DST Java Movie	Poor Event
2008/02/25	16:12:06	267	16	743	1348	1839	137.4^*1	----	----	273	C2 C3 PHTX DST Java Movie	Very Poor Event
2008/02/25	21:12:07	68	5	309	317	334	1.1^*1	----	----	72	C2 C3 PHTX DST Java Movie	Very Poor Event
2008/02/25	23:12:07	70	8	214	269	448	8.4^*1	----	----	71	C2 C3 PHTX DST Java Movie	Very Poor Event
2008/02/26	02:00:04	64	4	290	343	483	8.5^*1	----	----	69	C2 C3 PHTX DST Java Movie	Very Poor Event
2008/02/26	15:24:04	276	53	126	218	204	1.7^*1	3.5e+15	2.8e+29	272	C2 C3 PHTX DST Java Movie	Poor Event
2008/02/27	01:18:04	68	7	196	188	168	-0.7^*1	----	----	69	C2 C3 PHTX DST Java Movie	Very Poor Event
2008/02/28	10:50:04	66	16	223	232	252	0.8^*1	----	----	68	C2 C3 195 PHTX DST Java Movie	Very Poor Event
2008/02/28	19:48:04	273	54	253	348	547	11.0^*1	5.0e+13	1.6e+28	270	C2 C3 195 PHTX DST Java Movie	Very Poor Event
2008/02/29	01:26:04	270	54	195	257	514	10.2^*1	9.1e+13	1.7e+28	264	C2 C3 195 PHTX DST Java Movie	Very Poor Event
2008/02/29	06:26:04	266	48	125	123	112	-0.2^*1	9.1e+13	7.1e+27	265	C2 C3 195 PHTX DST Java Movie	Very Poor Event
2008/02/29	13:26:04	268	35	187	178	0	-2.2^*1	7.3e+11	1.3e+26	271	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only C2
2008/02/29	15:06:04	60	7	306	367	412	5.2^*1	----	----	65	C2 C3 195 PHTX DST Java Movie	Very Poor Event
2008/02/29	21:54:04	109	5	227	132	0	-45.3^*1	----	----	109	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only C2

*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).