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

2009/10/01 01:06:06 63 12 246 256 361 3.1^*1 ---- ---- 66 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2

2009/10/01 03:54:03 275 20 274 278 316 1.1^*1 5.0e+13 1.9e+28 273 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2

2009/10/01 20:06:03 102 14 187 379 478 10.2^*1 ---- ---- 99 C2 C3 195 PHTX DST Java Movie Very Poor Event

2009/10/02 07:06:03 103 9 210 263 335 4.0^*1 ---- ---- 96 C2 C3 195 PHTX DST Java Movie Very Poor Event

2009/10/02 13:31:40 252 7 511 483 0 -16.4^*1 ---- ---- 248 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2

2009/10/03 05:54:03 162 9 624 727 1083 38.7^*1 ---- ---- 156 C2 C3 195 PHTX DST Java Movie

2009/10/03 05:54:03 98 35 123 86 0 -6.5^*1 5.4e+13 4.1e+27 97 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2

2009/10/03 18:31:36 162 7 376 464 1120 51.1^*1 ---- ---- 156 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2

2009/10/03 21:54:04 163 7 344 154 0 -87.2^*1 ---- ---- 156 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2

2009/10/03 23:06:46 221 8 490 601 1270 60.6^*1 ---- ---- 225 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2

2009/10/04 18:54:03 265 34 159 181 355 4.4^*1 2.8e+13 3.5e+27 267 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2

2009/10/05 04:30:17 96 41 266 313 353 3.2^*1 3.4e+14 1.2e+29 92 C2 C3 195 PHTX DST Java Movie

2009/10/05 15:54:25 95 28 163 179 196 0.7^*1 3.5e+14 4.7e+28 104 C2 C3 195 PHTX DST Java Movie Poor Event

2009/10/06 11:06:03 288 24 235 318 459 8.3^*1 2.5e+14 6.8e+28 285 C2 C3 195 PHTX DST Java Movie Poor Event

2009/10/06 11:54:28 197 10 288 204 0 -29.9^*1 ---- ---- 200 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2

2009/10/06 13:30:18 4 8 589 893 2473 268.2^*1 ---- ---- 6 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2

2009/10/07 09:08:26 99 40 96 122 217 1.8^*1 2.2e+14 1.0e+28 100 C2 C3 195 PHTX DST Java Movie Poor Event

2009/10/07 19:06:16 105 16 216 239 279 1.9^*1 ---- ---- 100 C2 C3 195 PHTX DST Java Movie Very Poor Event

2009/10/07 23:06:03 350 12 393 470 1159 53.0^*1 ---- ---- 353 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2

2009/10/08 02:06:15 7 8 582 781 1666 107.2^*1 ---- ---- 12 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2

2009/10/08 02:54:27 99 10 120 214 315 4.3^*1 ---- ---- 100 C2 C3 195 PHTX DST Java Movie Very Poor Event

2009/10/08 09:30:14 169 5 346 514 1894 147.6^*1 ---- ---- 170 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2

2009/10/08 13:54:45 171 5 388 403 573 8.1^*1 ---- ---- 169 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2

2009/10/10 20:30:03 203 6 407 555 1220 59.4^*1 ---- ---- 211 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2

2009/10/11 16:54:03 258 28 130 316 288 3.6^*1 1.4e+14 1.2e+28 261 C2 C3 195 PHTX DST Java Movie Poor Event

2009/10/12 12:30:03 198 8 179 192 339 3.8^*1 ---- ---- 203 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2

2009/10/12 18:54:03 348 7 616 840 1750 119.9^*1 ---- ---- 345 C2 C3 195 PHTX DST Java Movie Poor Event; Only 3 points; Only C2

2009/10/13 04:54:03 69 9 153 186 364 4.9^*1 ---- ---- 71 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2

2009/10/13 07:31:37 272 50 199 214 233 0.9^*1 1.0e+14 2.0e+28 264 C2 C3 195 PHTX DST Java Movie Poor Event

2009/10/13 09:54:03 4 5 189 128 0 -28.9^*1 ---- ---- 3 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2

2009/10/13 15:30:03 277 47 94 198 199 1.7^*1 7.3e+14 3.2e+28 276 C2 C3 195 PHTX DST Java Movie

2009/10/13 17:08:02 120 10 204 239 300 2.5^*1 ---- ---- 115 C2 C3 195 PHTX DST Java Movie Poor Event

2009/10/14 10:06:03 118 17 265 280 317 1.5^*1 ---- ---- 110 C2 C3 195 PHTX DST Java Movie Poor Event

2009/10/16 20:30:03 293 44 362 440 455 5.2^*1 3.2e+14 2.1e+29 282 C2 C3 195 PHTX DST Java Movie

2009/10/17 20:58:37 211 145 220 307 395 5.8^*1 5.0e+14^*2 1.2e+29^*2 226 C2 C3 195 PHTX DST Java Movie Very Poor Event; Partial Halo

2009/10/20 04:30:03 82 42 139 290 345 4.9^*1 5.7e+14 5.5e+28 83 C2 C3 195 PHTX DST Java Movie

2009/10/20 07:31:36 146 14 237 322 653 16.6^*1 ---- ---- 148 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2

2009/10/20 10:30:17 286 29 181 253 539 11.5^*1 8.1e+13 1.3e+28 289 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2

2009/10/21 00:30:03 73 22 237 325 647 16.8^*1 5.4e+12 1.5e+27 78 C2 C3 195 PHTX DST Java Movie Poor Event

2009/10/21 01:30:03 268 17 161 203 238 1.8^*1 ---- ---- 266 C2 C3 195 PHTX DST Java Movie Poor Event

2009/10/21 06:55:20 69 6 237 217 134 -2.0^*1 ---- ---- 76 C2 C3 195 PHTX DST Java Movie Very Poor Event

2009/10/21 13:31:44 102 60 118 221 201 1.7^*1 2.5e+15 1.8e+29 91 C2 C3 195 PHTX DST Java Movie

2009/10/22 15:06:03 68 10 221 203 0 -3.5^*1 ---- ---- 72 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2

2009/10/22 16:30:03 294 27 257 277 309 1.6^*1 2.1e+14 6.8e+28 287 C2 C3 195 PHTX DST Java Movie Poor Event

2009/10/22 22:06:03 191 10 251 303 642 15.3^*1 ---- ---- 193 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2

2009/10/22 22:30:03 12 5 205 215 362 3.8^*1 ---- ---- 16 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2

2009/10/23 02:06:03 356 9 552 437 0 -36.9^*1 ---- ---- 358 C2 C3 195 PHTX DST Java Movie Poor Event

2009/10/23 09:30:03 136 8 307 270 0 -9.8^*1 ---- ---- 130 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2

2009/10/23 11:06:04 104 13 202 241 288 2.3^*1 ---- ---- 109 C2 C3 195 PHTX DST Java Movie Poor Event

2009/10/23 18:06:03 103 57 197 488 446 9.1^*1 4.3e+15 8.4e+29 101 C2 C3 195 PHTX DST Java Movie Poor Event

2009/10/23 19:31:37 247 7 412 388 0 -21.8^*1 ---- ---- 252 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2

2009/10/24 15:30:03 276 43 86 103 170 1.0^*1 1.9e+13 7.2e+26 282 C2 C3 195 PHTX DST Java Movie Poor Event

2009/10/24 18:30:03 1 6 355 465 1035 42.3^*1 ---- ---- 4 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2

2009/10/25 06:54:03 265 9 177 161 0 -1.6^*1 ---- ---- 267 C2 C3 195 PHTX DST Java Movie Poor Event

2009/10/26 00:06:03 269 23 159 149 84 -0.9^*1 1.4e+14 1.7e+28 268 C2 C3 195 PHTX DST Java Movie Very Poor Event

2009/10/26 23:06:03 214 9 541 300 0 -167.8^*1 ---- ---- 219 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2

2009/10/27 06:54:03 145 6 298 285 0 -7.2^*1 ---- ---- 142 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2

2009/10/27 20:30:03 332 5 234 301 785 25.0^*1 ---- ---- 327 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2

2009/10/27 21:16:22 239 15 489 565 723 15.0^*1 ---- ---- 247 C2 C3 195 PHTX DST Java Movie

2009/10/28 02:33:04 275 35 274 266 138 -2.5^*1 6.9e+13 2.6e+28 273 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2

2009/10/28 12:48:03 278 35 176 397 426 8.1^*1 7.0e+14 1.1e+29 277 C2 C3 195 PHTX DST Java Movie Very Poor Event

2009/10/28 19:26:03 278 62 181 422 490 10.1^*1 1.5e+14 2.5e+28 280 C2 C3 195 PHTX DST Java Movie Very Poor Event

2009/10/30 07:26:05 280 30 210 306 413 6.6^*1 1.1e+14 2.3e+28 278 C2 C3 195 PHTX DST Java Movie Very Poor Event

2009/10/31 01:48:03 249 99 312 428 376 4.0 5.0e+15 2.4e+30 244 C2 C3 195 PHTX DST Java Movie

2009/10/31 14:48:03 281 58 499 929 885 31.8 4.8e+14 6.0e+29 293 C2 C3 195 PHTX DST Java Movie

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
2009/10/01	01:06:06	63	12	246	256	361	3.1^*1	----	----	66	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only C2
2009/10/01	03:54:03	275	20	274	278	316	1.1^*1	5.0e+13	1.9e+28	273	C2 C3 195 PHTX DST Java Movie	Poor Event; Only C2
2009/10/01	20:06:03	102	14	187	379	478	10.2^*1	----	----	99	C2 C3 195 PHTX DST Java Movie	Very Poor Event
2009/10/02	07:06:03	103	9	210	263	335	4.0^*1	----	----	96	C2 C3 195 PHTX DST Java Movie	Very Poor Event
2009/10/02	13:31:40	252	7	511	483	0	-16.4^*1	----	----	248	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only C2
2009/10/03	05:54:03	162	9	624	727	1083	38.7^*1	----	----	156	C2 C3 195 PHTX DST Java Movie
2009/10/03	05:54:03	98	35	123	86	0	-6.5^*1	5.4e+13	4.1e+27	97	C2 C3 195 PHTX DST Java Movie	Poor Event; Only C2
2009/10/03	18:31:36	162	7	376	464	1120	51.1^*1	----	----	156	C2 C3 195 PHTX DST Java Movie	Poor Event; Only C2
2009/10/03	21:54:04	163	7	344	154	0	-87.2^*1	----	----	156	C2 C3 195 PHTX DST Java Movie	Poor Event; Only C2
2009/10/03	23:06:46	221	8	490	601	1270	60.6^*1	----	----	225	C2 C3 195 PHTX DST Java Movie	Poor Event; Only C2
2009/10/04	18:54:03	265	34	159	181	355	4.4^*1	2.8e+13	3.5e+27	267	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only C2
2009/10/05	04:30:17	96	41	266	313	353	3.2^*1	3.4e+14	1.2e+29	92	C2 C3 195 PHTX DST Java Movie
2009/10/05	15:54:25	95	28	163	179	196	0.7^*1	3.5e+14	4.7e+28	104	C2 C3 195 PHTX DST Java Movie	Poor Event
2009/10/06	11:06:03	288	24	235	318	459	8.3^*1	2.5e+14	6.8e+28	285	C2 C3 195 PHTX DST Java Movie	Poor Event
2009/10/06	11:54:28	197	10	288	204	0	-29.9^*1	----	----	200	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only C2
2009/10/06	13:30:18	4	8	589	893	2473	268.2^*1	----	----	6	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only 3 points; Only C2
2009/10/07	09:08:26	99	40	96	122	217	1.8^*1	2.2e+14	1.0e+28	100	C2 C3 195 PHTX DST Java Movie	Poor Event
2009/10/07	19:06:16	105	16	216	239	279	1.9^*1	----	----	100	C2 C3 195 PHTX DST Java Movie	Very Poor Event
2009/10/07	23:06:03	350	12	393	470	1159	53.0^*1	----	----	353	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only 3 points; Only C2
2009/10/08	02:06:15	7	8	582	781	1666	107.2^*1	----	----	12	C2 C3 195 PHTX DST Java Movie	Poor Event; Only C2
2009/10/08	02:54:27	99	10	120	214	315	4.3^*1	----	----	100	C2 C3 195 PHTX DST Java Movie	Very Poor Event
2009/10/08	09:30:14	169	5	346	514	1894	147.6^*1	----	----	170	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only 3 points; Only C2
2009/10/08	13:54:45	171	5	388	403	573	8.1^*1	----	----	169	C2 C3 195 PHTX DST Java Movie	Poor Event; Only C2
2009/10/10	20:30:03	203	6	407	555	1220	59.4^*1	----	----	211	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only C2
2009/10/11	16:54:03	258	28	130	316	288	3.6^*1	1.4e+14	1.2e+28	261	C2 C3 195 PHTX DST Java Movie	Poor Event
2009/10/12	12:30:03	198	8	179	192	339	3.8^*1	----	----	203	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only C2
2009/10/12	18:54:03	348	7	616	840	1750	119.9^*1	----	----	345	C2 C3 195 PHTX DST Java Movie	Poor Event; Only 3 points; Only C2
2009/10/13	04:54:03	69	9	153	186	364	4.9^*1	----	----	71	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only C2
2009/10/13	07:31:37	272	50	199	214	233	0.9^*1	1.0e+14	2.0e+28	264	C2 C3 195 PHTX DST Java Movie	Poor Event
2009/10/13	09:54:03	4	5	189	128	0	-28.9^*1	----	----	3	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only C2
2009/10/13	15:30:03	277	47	94	198	199	1.7^*1	7.3e+14	3.2e+28	276	C2 C3 195 PHTX DST Java Movie
2009/10/13	17:08:02	120	10	204	239	300	2.5^*1	----	----	115	C2 C3 195 PHTX DST Java Movie	Poor Event
2009/10/14	10:06:03	118	17	265	280	317	1.5^*1	----	----	110	C2 C3 195 PHTX DST Java Movie	Poor Event
2009/10/16	20:30:03	293	44	362	440	455	5.2^*1	3.2e+14	2.1e+29	282	C2 C3 195 PHTX DST Java Movie
2009/10/17	20:58:37	211	145	220	307	395	5.8^*1	5.0e+14^*2	1.2e+29^*2	226	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Partial Halo
2009/10/20	04:30:03	82	42	139	290	345	4.9^*1	5.7e+14	5.5e+28	83	C2 C3 195 PHTX DST Java Movie
2009/10/20	07:31:36	146	14	237	322	653	16.6^*1	----	----	148	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only C2
2009/10/20	10:30:17	286	29	181	253	539	11.5^*1	8.1e+13	1.3e+28	289	C2 C3 195 PHTX DST Java Movie	Poor Event; Only C2
2009/10/21	00:30:03	73	22	237	325	647	16.8^*1	5.4e+12	1.5e+27	78	C2 C3 195 PHTX DST Java Movie	Poor Event
2009/10/21	01:30:03	268	17	161	203	238	1.8^*1	----	----	266	C2 C3 195 PHTX DST Java Movie	Poor Event
2009/10/21	06:55:20	69	6	237	217	134	-2.0^*1	----	----	76	C2 C3 195 PHTX DST Java Movie	Very Poor Event
2009/10/21	13:31:44	102	60	118	221	201	1.7^*1	2.5e+15	1.8e+29	91	C2 C3 195 PHTX DST Java Movie
2009/10/22	15:06:03	68	10	221	203	0	-3.5^*1	----	----	72	C2 C3 195 PHTX DST Java Movie	Poor Event; Only C2
2009/10/22	16:30:03	294	27	257	277	309	1.6^*1	2.1e+14	6.8e+28	287	C2 C3 195 PHTX DST Java Movie	Poor Event
2009/10/22	22:06:03	191	10	251	303	642	15.3^*1	----	----	193	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only C2
2009/10/22	22:30:03	12	5	205	215	362	3.8^*1	----	----	16	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only 3 points; Only C2
2009/10/23	02:06:03	356	9	552	437	0	-36.9^*1	----	----	358	C2 C3 195 PHTX DST Java Movie	Poor Event
2009/10/23	09:30:03	136	8	307	270	0	-9.8^*1	----	----	130	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only C2
2009/10/23	11:06:04	104	13	202	241	288	2.3^*1	----	----	109	C2 C3 195 PHTX DST Java Movie	Poor Event
2009/10/23	18:06:03	103	57	197	488	446	9.1^*1	4.3e+15	8.4e+29	101	C2 C3 195 PHTX DST Java Movie	Poor Event
2009/10/23	19:31:37	247	7	412	388	0	-21.8^*1	----	----	252	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only 3 points; Only C2
2009/10/24	15:30:03	276	43	86	103	170	1.0^*1	1.9e+13	7.2e+26	282	C2 C3 195 PHTX DST Java Movie	Poor Event
2009/10/24	18:30:03	1	6	355	465	1035	42.3^*1	----	----	4	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only C2
2009/10/25	06:54:03	265	9	177	161	0	-1.6^*1	----	----	267	C2 C3 195 PHTX DST Java Movie	Poor Event
2009/10/26	00:06:03	269	23	159	149	84	-0.9^*1	1.4e+14	1.7e+28	268	C2 C3 195 PHTX DST Java Movie	Very Poor Event
2009/10/26	23:06:03	214	9	541	300	0	-167.8^*1	----	----	219	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only 3 points; Only C2
2009/10/27	06:54:03	145	6	298	285	0	-7.2^*1	----	----	142	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only 3 points; Only C2
2009/10/27	20:30:03	332	5	234	301	785	25.0^*1	----	----	327	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only 3 points; Only C2
2009/10/27	21:16:22	239	15	489	565	723	15.0^*1	----	----	247	C2 C3 195 PHTX DST Java Movie
2009/10/28	02:33:04	275	35	274	266	138	-2.5^*1	6.9e+13	2.6e+28	273	C2 C3 195 PHTX DST Java Movie	Poor Event; Only C2
2009/10/28	12:48:03	278	35	176	397	426	8.1^*1	7.0e+14	1.1e+29	277	C2 C3 195 PHTX DST Java Movie	Very Poor Event
2009/10/28	19:26:03	278	62	181	422	490	10.1^*1	1.5e+14	2.5e+28	280	C2 C3 195 PHTX DST Java Movie	Very Poor Event
2009/10/30	07:26:05	280	30	210	306	413	6.6^*1	1.1e+14	2.3e+28	278	C2 C3 195 PHTX DST Java Movie	Very Poor Event
2009/10/31	01:48:03	249	99	312	428	376	4.0	5.0e+15	2.4e+30	244	C2 C3 195 PHTX DST Java Movie
2009/10/31	14:48:03	281	58	499	929	885	31.8	4.8e+14	6.0e+29	293	C2 C3 195 PHTX DST Java Movie

*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).