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

2020/07/01 04:00:05 94 44 290 271 69 -3.7^*1 ---- ---- 93 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30

2020/07/01 07:36:05 90 41 170 167 151 -0.3^*1 ---- ---- 101 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30

2020/07/03 06:36:05 212 6 838 --- --- --- ---- ---- 222 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Poor Event; Only 2 points; Only C2

2020/07/03 19:24:05 95 51 364 279 0 -20.7^*1 ---- ---- 90 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30

2020/07/04 14:48:05 186 9 545 405 0 -96.2^*1 ---- ---- 185 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Poor Event; Only C2

2020/07/04 22:24:05 337 9 176 254 1001 41.4^*1 ---- ---- 337 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Very Poor Event; Only C2

2020/07/05 10:36:05 90 90 209 456 441 8.1 ---- ---- 102 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30

2020/07/06 11:24:05 263 48 61 64 102 0.3^*1 ---- ---- 262 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Very Poor Event; Only C2

2020/07/08 04:48:05 264 21 95 195 613 17.3^*1 ---- ---- 267 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Very Poor Event; Only C2

2020/07/08 22:36:05 87 23 144 213 742 22.2^*1 ---- ---- 91 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Very Poor Event; Only C2

2020/07/09 02:48:05 268 69 298 382 351 3.2 ---- ---- 268 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30

2020/07/09 13:48:05 261 12 267 395 631 16.0^*1 ---- ---- 258 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Poor Event

2020/07/09 20:56:53 260 52 361 347 322 -1.5^*1 ---- ---- 266 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Poor Event

2020/07/10 22:24:05 269 11 205 217 325 2.9^*1 ---- ---- 271 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Very Poor Event

2020/07/13 03:48:05 256 19 323 329 377 1.8^*1 ---- ---- 253 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Poor Event; Only C2

2020/07/15 12:48:05 177 7 342 593 1788 134.2^*1 ---- ---- 175 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Very Poor Event; Only 3 points; Only C2

2020/07/16 04:12:05 88 80 322 422 408 4.7^*1 ---- ---- 92 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30

2020/07/17 01:36:06 276 57 299 309 356 1.9^*1 ---- ---- 275 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30

2020/07/17 08:48:05 185 6 404 664 2324 228.4^*1 ---- ---- 184 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Very Poor Event; Only 3 points; Only C2

2020/07/17 15:12:09 261 15 133 183 377 6.2^*1 ---- ---- 254 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Very Poor Event

2020/07/18 00:48:05 185 8 414 964 2952 360.9^*1 ---- ---- 183 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Very Poor Event; Only 3 points; Only C2

2020/07/18 15:16:16 257 72 68 51 0 -0.6^*1 ---- ---- 259 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Poor Event

2020/07/19 04:13:20 203 7 756 902 2387 221.6^*1 ---- ---- 207 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Very Poor Event; Only 3 points; Only C2

2020/07/19 12:18:49 216 212 105 167 369 5.6^*1 ---- ---- 39 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Poor Event; Only C2; Partial Halo

2020/07/19 23:06:41 257 16 180 199 292 2.4^*1 ---- ---- 254 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Poor Event

2020/07/21 10:12:05 90 46 183 114 0 -14.8^*1 ---- ---- 89 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Poor Event; Only C2

2020/07/22 01:25:18 105 39 187 216 392 5.4^*1 ---- ---- 95 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Poor Event

2020/07/22 03:12:10 26 7 597 796 2593 278.1^*1 ---- ---- 31 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Very Poor Event; Only 3 points; Only C2

2020/07/23 12:48:05 72 10 269 469 1613 106.9^*1 ---- ---- 77 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Very Poor Event; Only C2

2020/07/23 19:24:05 99 17 139 121 0 -5.0^*1 ---- ---- 103 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Very Poor Event; Only C2

2020/07/24 14:12:05 271 33 124 277 291 3.7^*1 ---- ---- 276 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30

2020/07/26 04:24:05 271 16 263 277 305 1.4^*1 ---- ---- 271 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30

2020/07/26 06:48:06 271 22 128 192 418 7.3^*1 ---- ---- 271 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Poor Event

2020/07/26 18:24:05 69 16 295 432 1021 42.2^*1 ---- ---- 69 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Poor Event; Only C2

2020/07/27 15:38:15 256 12 127 193 757 24.0^*1 ---- ---- 259 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Very Poor Event; Only C2

2020/07/28 08:36:05 89 15 105 138 252 2.6^*1 ---- ---- 89 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Poor Event

2020/07/29 01:25:42 90 47 141 85 0 -25.8^*1 ---- ---- 91 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Very Poor Event; Only C2

2020/07/29 15:37:34 94 76 163 372 319 4.4^*1 ---- ---- 100 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30

2020/07/30 13:48:05 98 16 290 392 841 31.6^*1 ---- ---- 94 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Poor Event

2020/07/30 14:24:05 105 52 293 398 514 9.4^*1 ---- ---- 103 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30

2020/07/30 21:12:09 104 12 177 218 512 10.4^*1 ---- ---- 100 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Very Poor Event; Only C2

2020/07/30 23:12:11 152 9 418 647 2768 320.1^*1 ---- ---- 147 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Poor Event; Only 3 points; Only C2

2020/07/31 01:25:41 15 18 251 230 0 -8.5^*1 ---- ---- 20 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Only C2

2020/07/31 06:12:11 16 10 806 1187 3477 532.1^*1 ---- ---- 22 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Poor Event; Only 3 points; Only C2

2020/07/31 07:12:05 272 60 258 291 659 16.0^*1 ---- ---- 275 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Poor Event; Only C2

2020/07/31 08:48:25 101 13 315 339 439 4.9^*1 ---- ---- 101 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Poor Event

2020/07/31 16:36:05 98 80 202 371 318 4.0 ---- ---- 98 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30

2020/07/31 21:12:10 252 8 395 421 756 18.5^*1 ---- ---- 255 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Poor Event; Only C2

2020/07/31 21:36:06 105 10 277 301 334 2.2^*1 ---- ---- 107 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30

2020/07/31 23:36:05 272 55 172 164 0 -2.0^*1 ---- ---- 271 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; 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
2020/07/01	04:00:05	94	44	290	271	69	-3.7^*1	----	----	93	C2 C3 PHTX DST Java Movie	Fixed the MVI roll angle issue on 2026-01-30
2020/07/01	07:36:05	90	41	170	167	151	-0.3^*1	----	----	101	C2 C3 PHTX DST Java Movie	Fixed the MVI roll angle issue on 2026-01-30
2020/07/03	06:36:05	212	6	838	---	---	---	----	----	222	C2 C3 PHTX DST Java Movie	Fixed the MVI roll angle issue on 2026-01-30; Poor Event; Only 2 points; Only C2
2020/07/03	19:24:05	95	51	364	279	0	-20.7^*1	----	----	90	C2 C3 PHTX DST Java Movie	Fixed the MVI roll angle issue on 2026-01-30
2020/07/04	14:48:05	186	9	545	405	0	-96.2^*1	----	----	185	C2 C3 PHTX DST Java Movie	Fixed the MVI roll angle issue on 2026-01-30; Poor Event; Only C2
2020/07/04	22:24:05	337	9	176	254	1001	41.4^*1	----	----	337	C2 C3 PHTX DST Java Movie	Fixed the MVI roll angle issue on 2026-01-30; Very Poor Event; Only C2
2020/07/05	10:36:05	90	90	209	456	441	8.1	----	----	102	C2 C3 PHTX DST Java Movie	Fixed the MVI roll angle issue on 2026-01-30
2020/07/06	11:24:05	263	48	61	64	102	0.3^*1	----	----	262	C2 C3 PHTX DST Java Movie	Fixed the MVI roll angle issue on 2026-01-30; Very Poor Event; Only C2
2020/07/08	04:48:05	264	21	95	195	613	17.3^*1	----	----	267	C2 C3 PHTX DST Java Movie	Fixed the MVI roll angle issue on 2026-01-30; Very Poor Event; Only C2
2020/07/08	22:36:05	87	23	144	213	742	22.2^*1	----	----	91	C2 C3 PHTX DST Java Movie	Fixed the MVI roll angle issue on 2026-01-30; Very Poor Event; Only C2
2020/07/09	02:48:05	268	69	298	382	351	3.2	----	----	268	C2 C3 PHTX DST Java Movie	Fixed the MVI roll angle issue on 2026-01-30
2020/07/09	13:48:05	261	12	267	395	631	16.0^*1	----	----	258	C2 C3 PHTX DST Java Movie	Fixed the MVI roll angle issue on 2026-01-30; Poor Event
2020/07/09	20:56:53	260	52	361	347	322	-1.5^*1	----	----	266	C2 C3 PHTX DST Java Movie	Fixed the MVI roll angle issue on 2026-01-30; Poor Event
2020/07/10	22:24:05	269	11	205	217	325	2.9^*1	----	----	271	C2 C3 PHTX DST Java Movie	Fixed the MVI roll angle issue on 2026-01-30; Very Poor Event
2020/07/13	03:48:05	256	19	323	329	377	1.8^*1	----	----	253	C2 C3 PHTX DST Java Movie	Fixed the MVI roll angle issue on 2026-01-30; Poor Event; Only C2
2020/07/15	12:48:05	177	7	342	593	1788	134.2^*1	----	----	175	C2 C3 PHTX DST Java Movie	Fixed the MVI roll angle issue on 2026-01-30; Very Poor Event; Only 3 points; Only C2
2020/07/16	04:12:05	88	80	322	422	408	4.7^*1	----	----	92	C2 C3 PHTX DST Java Movie	Fixed the MVI roll angle issue on 2026-01-30
2020/07/17	01:36:06	276	57	299	309	356	1.9^*1	----	----	275	C2 C3 PHTX DST Java Movie	Fixed the MVI roll angle issue on 2026-01-30
2020/07/17	08:48:05	185	6	404	664	2324	228.4^*1	----	----	184	C2 C3 PHTX DST Java Movie	Fixed the MVI roll angle issue on 2026-01-30; Very Poor Event; Only 3 points; Only C2
2020/07/17	15:12:09	261	15	133	183	377	6.2^*1	----	----	254	C2 C3 PHTX DST Java Movie	Fixed the MVI roll angle issue on 2026-01-30; Very Poor Event
2020/07/18	00:48:05	185	8	414	964	2952	360.9^*1	----	----	183	C2 C3 PHTX DST Java Movie	Fixed the MVI roll angle issue on 2026-01-30; Very Poor Event; Only 3 points; Only C2
2020/07/18	15:16:16	257	72	68	51	0	-0.6^*1	----	----	259	C2 C3 PHTX DST Java Movie	Fixed the MVI roll angle issue on 2026-01-30; Poor Event
2020/07/19	04:13:20	203	7	756	902	2387	221.6^*1	----	----	207	C2 C3 PHTX DST Java Movie	Fixed the MVI roll angle issue on 2026-01-30; Very Poor Event; Only 3 points; Only C2
2020/07/19	12:18:49	216	212	105	167	369	5.6^*1	----	----	39	C2 C3 PHTX DST Java Movie	Fixed the MVI roll angle issue on 2026-01-30; Poor Event; Only C2; Partial Halo
2020/07/19	23:06:41	257	16	180	199	292	2.4^*1	----	----	254	C2 C3 PHTX DST Java Movie	Fixed the MVI roll angle issue on 2026-01-30; Poor Event
2020/07/21	10:12:05	90	46	183	114	0	-14.8^*1	----	----	89	C2 C3 PHTX DST Java Movie	Fixed the MVI roll angle issue on 2026-01-30; Poor Event; Only C2
2020/07/22	01:25:18	105	39	187	216	392	5.4^*1	----	----	95	C2 C3 PHTX DST Java Movie	Fixed the MVI roll angle issue on 2026-01-30; Poor Event
2020/07/22	03:12:10	26	7	597	796	2593	278.1^*1	----	----	31	C2 C3 PHTX DST Java Movie	Fixed the MVI roll angle issue on 2026-01-30; Very Poor Event; Only 3 points; Only C2
2020/07/23	12:48:05	72	10	269	469	1613	106.9^*1	----	----	77	C2 C3 PHTX DST Java Movie	Fixed the MVI roll angle issue on 2026-01-30; Very Poor Event; Only C2
2020/07/23	19:24:05	99	17	139	121	0	-5.0^*1	----	----	103	C2 C3 PHTX DST Java Movie	Fixed the MVI roll angle issue on 2026-01-30; Very Poor Event; Only C2
2020/07/24	14:12:05	271	33	124	277	291	3.7^*1	----	----	276	C2 C3 PHTX DST Java Movie	Fixed the MVI roll angle issue on 2026-01-30
2020/07/26	04:24:05	271	16	263	277	305	1.4^*1	----	----	271	C2 C3 PHTX DST Java Movie	Fixed the MVI roll angle issue on 2026-01-30
2020/07/26	06:48:06	271	22	128	192	418	7.3^*1	----	----	271	C2 C3 PHTX DST Java Movie	Fixed the MVI roll angle issue on 2026-01-30; Poor Event
2020/07/26	18:24:05	69	16	295	432	1021	42.2^*1	----	----	69	C2 C3 PHTX DST Java Movie	Fixed the MVI roll angle issue on 2026-01-30; Poor Event; Only C2
2020/07/27	15:38:15	256	12	127	193	757	24.0^*1	----	----	259	C2 C3 PHTX DST Java Movie	Fixed the MVI roll angle issue on 2026-01-30; Very Poor Event; Only C2
2020/07/28	08:36:05	89	15	105	138	252	2.6^*1	----	----	89	C2 C3 PHTX DST Java Movie	Fixed the MVI roll angle issue on 2026-01-30; Poor Event
2020/07/29	01:25:42	90	47	141	85	0	-25.8^*1	----	----	91	C2 C3 PHTX DST Java Movie	Fixed the MVI roll angle issue on 2026-01-30; Very Poor Event; Only C2
2020/07/29	15:37:34	94	76	163	372	319	4.4^*1	----	----	100	C2 C3 PHTX DST Java Movie	Fixed the MVI roll angle issue on 2026-01-30
2020/07/30	13:48:05	98	16	290	392	841	31.6^*1	----	----	94	C2 C3 PHTX DST Java Movie	Fixed the MVI roll angle issue on 2026-01-30; Poor Event
2020/07/30	14:24:05	105	52	293	398	514	9.4^*1	----	----	103	C2 C3 PHTX DST Java Movie	Fixed the MVI roll angle issue on 2026-01-30
2020/07/30	21:12:09	104	12	177	218	512	10.4^*1	----	----	100	C2 C3 PHTX DST Java Movie	Fixed the MVI roll angle issue on 2026-01-30; Very Poor Event; Only C2
2020/07/30	23:12:11	152	9	418	647	2768	320.1^*1	----	----	147	C2 C3 PHTX DST Java Movie	Fixed the MVI roll angle issue on 2026-01-30; Poor Event; Only 3 points; Only C2
2020/07/31	01:25:41	15	18	251	230	0	-8.5^*1	----	----	20	C2 C3 PHTX DST Java Movie	Fixed the MVI roll angle issue on 2026-01-30; Only C2
2020/07/31	06:12:11	16	10	806	1187	3477	532.1^*1	----	----	22	C2 C3 PHTX DST Java Movie	Fixed the MVI roll angle issue on 2026-01-30; Poor Event; Only 3 points; Only C2
2020/07/31	07:12:05	272	60	258	291	659	16.0^*1	----	----	275	C2 C3 PHTX DST Java Movie	Fixed the MVI roll angle issue on 2026-01-30; Poor Event; Only C2
2020/07/31	08:48:25	101	13	315	339	439	4.9^*1	----	----	101	C2 C3 PHTX DST Java Movie	Fixed the MVI roll angle issue on 2026-01-30; Poor Event
2020/07/31	16:36:05	98	80	202	371	318	4.0	----	----	98	C2 C3 PHTX DST Java Movie	Fixed the MVI roll angle issue on 2026-01-30
2020/07/31	21:12:10	252	8	395	421	756	18.5^*1	----	----	255	C2 C3 PHTX DST Java Movie	Fixed the MVI roll angle issue on 2026-01-30; Poor Event; Only C2
2020/07/31	21:36:06	105	10	277	301	334	2.2^*1	----	----	107	C2 C3 PHTX DST Java Movie	Fixed the MVI roll angle issue on 2026-01-30
2020/07/31	23:36:05	272	55	172	164	0	-2.0^*1	----	----	271	C2 C3 PHTX DST Java Movie	Fixed the MVI roll angle issue on 2026-01-30; 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).