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

2009/02/01 02:30:03 99 56 202 207 217 0.3^*1 1.5e+14 3.0e+28 96 C2 C3 195 PHTX DST Java Movie Poor Event

2009/02/01 10:34:04 282 10 184 233 541 11.9^*1 ---- ---- 282 C2 C3 195 PHTX DST Java Movie Very Poor Event

2009/02/02 06:30:03 318 11 266 109 0 -61.0^*1 ---- ---- 310 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2

2009/02/02 18:30:03 182 8 421 938 3188 456.5^*1 ---- ---- 181 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2

2009/02/02 21:30:03 182 9 392 711 2560 281.9^*1 ---- ---- 180 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2

2009/02/03 22:18:03 262 11 325 411 927 38.0^*1 ---- ---- 268 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points

2009/02/04 07:31:39 6 10 578 1019 3079 409.5^*1 ---- ---- 11 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2

2009/02/05 21:30:06 91 25 151 150 148 -0.0^*1 3.0e+14 3.4e+28 98 C2 C3 195 PHTX DST Java Movie Poor Event

2009/02/06 03:06:03 291 25 447 532 536 6.3^*1 5.4e+14 5.3e+29 283 C2 C3 195 PHTX DST Java Movie

2009/02/06 23:30:04 40 7 465 876 2945 363.6^*1 ---- ---- 45 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2

2009/02/08 05:00:03 103 39 260 217 0 -10.7^*1 2.3e+13 7.8e+27 96 C2 C3 PHTX DST Java Movie Poor Event

2009/02/08 05:12:03 296 12 554 605 967 28.4^*1 ---- ---- 291 C2 C3 PHTX DST Java Movie Poor Event; Only C2

2009/02/09 07:12:03 94 49 219 250 314 2.6^*1 1.4e+14 3.4e+28 94 C2 C3 PHTX DST Java Movie

2009/02/09 13:36:03 288 10 275 259 0 -7.2^*1 ---- ---- 283 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2

2009/02/11 06:42:03 86 39 282 376 338 7.4^*1 7.0e+14 2.8e+29 88 C2 C3 PHTX DST Java Movie Poor Event; Only C3

2009/02/11 06:42:03 264 53 330 518 440 13.4^*1 1.4e+15 7.5e+29 263 C2 C3 PHTX DST Java Movie Poor Event; Only C3

2009/02/15 23:54:23 307 11 279 286 370 2.7^*1 ---- ---- 301 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2

2009/02/16 01:54:03 261 7 173 169 127 -0.7^*1 ---- ---- 260 C2 C3 195 PHTX DST Java Movie Very Poor Event

2009/02/16 06:30:03 252 6 279 358 443 7.3^*1 ---- ---- 251 C2 C3 195 PHTX DST Java Movie Very Poor Event

2009/02/16 10:06:03 156 4 181 307 1457 87.4^*1 ---- ---- 153 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2

2009/02/17 12:30:03 252 13 261 283 346 3.1^*1 ---- ---- 256 C2 C3 195 PHTX DST Java Movie Very Poor Event

2009/02/18 02:30:03 63 53 192 490 446 8.2^*1 2.0e+15 3.7e+29 68 C2 C3 195 PHTX DST Java Movie

2009/02/18 14:06:04 195 9 302 307 408 3.2^*1 ---- ---- 196 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2

2009/02/18 23:54:05 306 74 122 171 468 9.3^*1 2.7e+14 2.0e+28 322 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2

2009/02/19 00:54:03 272 30 194 165 0 -7.9^*1 6.3e+13 1.2e+28 272 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2

2009/02/19 03:30:03 69 22 179 196 221 0.9^*1 4.1e+13 6.6e+27 77 C2 C3 195 PHTX DST Java Movie Poor Event

2009/02/19 08:30:03 239 12 135 139 183 0.7^*1 ---- ---- 242 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2

2009/02/19 17:45:46 60 19 226 357 347 4.6^*1 ---- ---- 67 C2 C3 195 PHTX DST Java Movie Poor Event

2009/02/20 10:21:25 6 9 431 407 0 -12.4^*1 ---- ---- 8 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2

2009/02/21 00:56:26 267 80 376 475 402 9.3 1.0e+15 7.3e+29 258 C2 C3 195 PHTX DST Java Movie Only C3

2009/02/21 11:13:22 335 4 412 505 1086 47.8^*1 ---- ---- 330 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2

2009/02/21 13:23:09 252 9 248 250 250 0.1^*1 ---- ---- 258 C2 C3 195 PHTX DST Java Movie

2009/02/22 12:06:03 116 67 88 83 0 -0.5^*1 2.4e+14 9.4e+27 101 PHTX DST Java Movie Poor Event; Only C2

2009/02/23 05:30:03 267 7 340 438 693 17.6^*1 ---- ---- 271 PHTX DST Java Movie Poor Event

2009/02/23 07:54:05 270 12 292 358 483 7.5^*1 ---- ---- 272 PHTX DST Java Movie Poor Event

2009/02/23 12:30:04 71 11 282 369 578 12.2^*1 ---- ---- 81 PHTX DST Java Movie Poor Event

2009/02/23 19:12:28 275 36 260 277 393 4.2^*1 3.6e+13 1.2e+28 276 PHTX DST Java Movie Very Poor Event

2009/02/23 22:06:03 61 8 283 195 0 -33.5^*1 ---- ---- 64 PHTX DST Java Movie Very Poor Event; Only C2

2009/02/24 00:54:03 160 6 233 248 490 7.9^*1 ---- ---- 159 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2

2009/02/24 12:54:05 327 4 254 343 1079 47.6^*1 ---- ---- 321 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2

2009/02/24 14:30:03 286 13 126 198 265 3.0^*1 ---- ---- 286 PHTX DST Java Movie Very Poor Event

2009/02/24 23:30:03 73 17 413 499 737 18.0^*1 ---- ---- 74 PHTX DST Java Movie Poor Event

2009/02/25 02:30:03 96 38 195 216 376 4.6^*1 5.4e+13 1.0e+28 96 PHTX DST Java Movie Poor Event; Only C2

2009/02/25 13:31:39 4 6 514 363 0 -89.1^*1 ---- ---- 3 PHTX DST Java Movie Very Poor Event; Only C2

2009/02/26 16:54:03 67 11 333 335 357 0.7^*1 ---- ---- 72 PHTX DST Java Movie Poor Event; Only C2

2009/02/26 17:30:03 230 8 264 160 0 -41.1^*1 ---- ---- 238 PHTX DST Java Movie Very Poor Event; Only C2

2009/02/26 20:58:41 343 8 246 422 1409 82.6^*1 ---- ---- 341 PHTX DST Java Movie Very Poor Event; Only C2

2009/02/27 09:06:03 298 49 222 241 367 3.8^*1 4.9e+13 1.2e+28 304 PHTX DST Java Movie Very Poor Event; Only C2

2009/02/27 18:54:03 291 33 192 260 263 2.2^*1 1.1e+14 2.0e+28 292 PHTX DST Java Movie

2009/02/28 02:30:03 334 10 143 151 262 2.1^*1 ---- ---- 327 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2

2009/02/28 09:06:20 332 6 325 451 1439 87.4^*1 ---- ---- 325 PHTX DST Java Movie Very Poor Event; Only 3 points; 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
2009/02/01	02:30:03	99	56	202	207	217	0.3^*1	1.5e+14	3.0e+28	96	C2 C3 195 PHTX DST Java Movie	Poor Event
2009/02/01	10:34:04	282	10	184	233	541	11.9^*1	----	----	282	C2 C3 195 PHTX DST Java Movie	Very Poor Event
2009/02/02	06:30:03	318	11	266	109	0	-61.0^*1	----	----	310	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only C2
2009/02/02	18:30:03	182	8	421	938	3188	456.5^*1	----	----	181	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only 3 points; Only C2
2009/02/02	21:30:03	182	9	392	711	2560	281.9^*1	----	----	180	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only 3 points; Only C2
2009/02/03	22:18:03	262	11	325	411	927	38.0^*1	----	----	268	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only 3 points
2009/02/04	07:31:39	6	10	578	1019	3079	409.5^*1	----	----	11	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only 3 points; Only C2
2009/02/05	21:30:06	91	25	151	150	148	-0.0^*1	3.0e+14	3.4e+28	98	C2 C3 195 PHTX DST Java Movie	Poor Event
2009/02/06	03:06:03	291	25	447	532	536	6.3^*1	5.4e+14	5.3e+29	283	C2 C3 195 PHTX DST Java Movie
2009/02/06	23:30:04	40	7	465	876	2945	363.6^*1	----	----	45	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only 3 points; Only C2
2009/02/08	05:00:03	103	39	260	217	0	-10.7^*1	2.3e+13	7.8e+27	96	C2 C3 PHTX DST Java Movie	Poor Event
2009/02/08	05:12:03	296	12	554	605	967	28.4^*1	----	----	291	C2 C3 PHTX DST Java Movie	Poor Event; Only C2
2009/02/09	07:12:03	94	49	219	250	314	2.6^*1	1.4e+14	3.4e+28	94	C2 C3 PHTX DST Java Movie
2009/02/09	13:36:03	288	10	275	259	0	-7.2^*1	----	----	283	C2 C3 PHTX DST Java Movie	Very Poor Event; Only C2
2009/02/11	06:42:03	86	39	282	376	338	7.4^*1	7.0e+14	2.8e+29	88	C2 C3 PHTX DST Java Movie	Poor Event; Only C3
2009/02/11	06:42:03	264	53	330	518	440	13.4^*1	1.4e+15	7.5e+29	263	C2 C3 PHTX DST Java Movie	Poor Event; Only C3
2009/02/15	23:54:23	307	11	279	286	370	2.7^*1	----	----	301	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only C2
2009/02/16	01:54:03	261	7	173	169	127	-0.7^*1	----	----	260	C2 C3 195 PHTX DST Java Movie	Very Poor Event
2009/02/16	06:30:03	252	6	279	358	443	7.3^*1	----	----	251	C2 C3 195 PHTX DST Java Movie	Very Poor Event
2009/02/16	10:06:03	156	4	181	307	1457	87.4^*1	----	----	153	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only 3 points; Only C2
2009/02/17	12:30:03	252	13	261	283	346	3.1^*1	----	----	256	C2 C3 195 PHTX DST Java Movie	Very Poor Event
2009/02/18	02:30:03	63	53	192	490	446	8.2^*1	2.0e+15	3.7e+29	68	C2 C3 195 PHTX DST Java Movie
2009/02/18	14:06:04	195	9	302	307	408	3.2^*1	----	----	196	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only 3 points; Only C2
2009/02/18	23:54:05	306	74	122	171	468	9.3^*1	2.7e+14	2.0e+28	322	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only C2
2009/02/19	00:54:03	272	30	194	165	0	-7.9^*1	6.3e+13	1.2e+28	272	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only C2
2009/02/19	03:30:03	69	22	179	196	221	0.9^*1	4.1e+13	6.6e+27	77	C2 C3 195 PHTX DST Java Movie	Poor Event
2009/02/19	08:30:03	239	12	135	139	183	0.7^*1	----	----	242	C2 C3 195 PHTX DST Java Movie	Poor Event; Only C2
2009/02/19	17:45:46	60	19	226	357	347	4.6^*1	----	----	67	C2 C3 195 PHTX DST Java Movie	Poor Event
2009/02/20	10:21:25	6	9	431	407	0	-12.4^*1	----	----	8	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only C2
2009/02/21	00:56:26	267	80	376	475	402	9.3	1.0e+15	7.3e+29	258	C2 C3 195 PHTX DST Java Movie	Only C3
2009/02/21	11:13:22	335	4	412	505	1086	47.8^*1	----	----	330	C2 C3 195 PHTX DST Java Movie	Poor Event; Only C2
2009/02/21	13:23:09	252	9	248	250	250	0.1^*1	----	----	258	C2 C3 195 PHTX DST Java Movie
2009/02/22	12:06:03	116	67	88	83	0	-0.5^*1	2.4e+14	9.4e+27	101	PHTX DST Java Movie	Poor Event; Only C2
2009/02/23	05:30:03	267	7	340	438	693	17.6^*1	----	----	271	PHTX DST Java Movie	Poor Event
2009/02/23	07:54:05	270	12	292	358	483	7.5^*1	----	----	272	PHTX DST Java Movie	Poor Event
2009/02/23	12:30:04	71	11	282	369	578	12.2^*1	----	----	81	PHTX DST Java Movie	Poor Event
2009/02/23	19:12:28	275	36	260	277	393	4.2^*1	3.6e+13	1.2e+28	276	PHTX DST Java Movie	Very Poor Event
2009/02/23	22:06:03	61	8	283	195	0	-33.5^*1	----	----	64	PHTX DST Java Movie	Very Poor Event; Only C2
2009/02/24	00:54:03	160	6	233	248	490	7.9^*1	----	----	159	PHTX DST Java Movie	Very Poor Event; Only 3 points; Only C2
2009/02/24	12:54:05	327	4	254	343	1079	47.6^*1	----	----	321	PHTX DST Java Movie	Very Poor Event; Only 3 points; Only C2
2009/02/24	14:30:03	286	13	126	198	265	3.0^*1	----	----	286	PHTX DST Java Movie	Very Poor Event
2009/02/24	23:30:03	73	17	413	499	737	18.0^*1	----	----	74	PHTX DST Java Movie	Poor Event
2009/02/25	02:30:03	96	38	195	216	376	4.6^*1	5.4e+13	1.0e+28	96	PHTX DST Java Movie	Poor Event; Only C2
2009/02/25	13:31:39	4	6	514	363	0	-89.1^*1	----	----	3	PHTX DST Java Movie	Very Poor Event; Only C2
2009/02/26	16:54:03	67	11	333	335	357	0.7^*1	----	----	72	PHTX DST Java Movie	Poor Event; Only C2
2009/02/26	17:30:03	230	8	264	160	0	-41.1^*1	----	----	238	PHTX DST Java Movie	Very Poor Event; Only C2
2009/02/26	20:58:41	343	8	246	422	1409	82.6^*1	----	----	341	PHTX DST Java Movie	Very Poor Event; Only C2
2009/02/27	09:06:03	298	49	222	241	367	3.8^*1	4.9e+13	1.2e+28	304	PHTX DST Java Movie	Very Poor Event; Only C2
2009/02/27	18:54:03	291	33	192	260	263	2.2^*1	1.1e+14	2.0e+28	292	PHTX DST Java Movie
2009/02/28	02:30:03	334	10	143	151	262	2.1^*1	----	----	327	PHTX DST Java Movie	Very Poor Event; Only 3 points; Only C2
2009/02/28	09:06:20	332	6	325	451	1439	87.4^*1	----	----	325	PHTX DST Java Movie	Very Poor Event; Only 3 points; 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).