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

2019/10/01 03:12:11 95 55 202 83 0 -37.2^*1 2.6e+12 5.4e+26 90 C2 C3 PHTX DST Java Movie Poor Event; Only C2

2019/10/02 03:12:10 137 9 563 863 2576 287.4^*1 ---- ---- 128 C2 C3 PHTX DST Java Movie Poor Event; Only C2

2019/10/02 09:12:11 248 56 77 72 0 -0.6^*1 2.2e+14 6.6e+27 274 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2

2019/10/02 18:12:05 112 25 278 303 476 6.8^*1 8.2e+13 3.2e+28 110 C2 C3 PHTX DST Java Movie Poor Event; Only C2

2019/10/02 19:48:05 87 16 119 109 0 -1.8^*1 ---- ---- 90 C2 C3 PHTX DST Java Movie Very Poor Event

2019/10/03 10:36:05 253 16 159 121 0 -16.9^*1 ---- ---- 249 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2

2019/10/03 23:24:07 86 25 166 209 995 40.2^*1 6.7e+11^*2 9.3e+25^*2 85 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2

2019/10/04 07:36:05 257 16 213 205 58 -2.1^*1 ---- ---- 264 C2 C3 PHTX DST Java Movie Very Poor Event

2019/10/04 10:00:06 292 12 250 319 1044 44.1^*1 ---- ---- 287 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2

2019/10/04 17:36:05 119 10 314 284 0 -21.0^*1 ---- ---- 120 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2

2019/10/05 21:24:05 279 15 200 202 210 0.2^*1 ---- ---- 278 C2 C3 PHTX DST Java Movie Poor Event

2019/10/06 21:48:05 88 23 209 252 392 5.8^*1 2.9e+13 6.4e+27 74 C2 C3 PHTX DST Java Movie Poor Event

2019/10/08 09:48:05 131 12 304 467 1903 147.7^*1 ---- ---- 132 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2

2019/10/09 17:12:06 113 24 91 97 156 0.7^*1 4.6e+13 1.9e+27 117 C2 C3 PHTX DST Java Movie Poor Event; Only C2

2019/10/10 00:48:05 86 19 180 189 282 2.4^*1 ---- ---- 89 C2 C3 PHTX DST Java Movie Very Poor Event

2019/10/11 19:11:31 275 32 127 206 459 10.3^*1 2.5e+13 2.0e+27 278 C2 C3 PHTX DST Java Movie Very Poor Event

2019/10/11 23:12:05 83 19 136 146 266 2.4^*1 ---- ---- 78 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2

2019/10/13 09:36:06 51 8 198 248 1072 46.8^*1 ---- ---- 51 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2

2019/10/13 17:00:05 285 66 157 373 343 4.9^*1 2.9e+15 3.6e+29 280 C2 C3 PHTX DST Java Movie

2019/10/13 20:24:05 114 12 216 252 341 3.8^*1 ---- ---- 117 C2 C3 PHTX DST Java Movie Poor Event

2019/10/13 23:36:05 104 27 229 168 0 -35.0^*1 2.1e+13 5.4e+27 96 C2 C3 PHTX DST Java Movie Poor Event; Only C2

2019/10/14 19:36:05 284 37 130 245 271 3.1^*1 1.3e+15 1.1e+29 278 C2 C3 PHTX DST Java Movie Poor Event

2019/10/15 08:00:05 78 15 144 167 360 4.7^*1 ---- ---- 82 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2

2019/10/15 22:00:05 278 7 367 398 580 10.9^*1 ---- ---- 284 C2 C3 PHTX DST Java Movie Very Poor Event

2019/10/16 11:00:05 266 20 227 222 154 -1.2^*1 1.3e+12 3.2e+26 266 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2

2019/10/16 12:48:05 116 13 263 287 386 4.5^*1 ---- ---- 113 C2 C3 PHTX DST Java Movie Very Poor Event

2019/10/17 00:36:05 277 29 124 162 278 3.1^*1 6.1e+13 4.7e+27 284 C2 C3 PHTX DST Java Movie Very Poor Event

2019/10/17 06:36:05 285 20 105 98 35 -0.5^*1 8.4e+12 4.6e+26 284 C2 C3 PHTX DST Java Movie Very Poor Event

2019/10/17 21:36:05 195 7 372 170 0 -280.5^*1 ---- ---- 198 C2 C3 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2

2019/10/19 02:12:05 195 11 658 912 2420 235.0^*1 ---- ---- 197 C2 C3 PHTX DST Java Movie Poor Event; Only C2

2019/10/20 16:24:05 256 15 211 253 703 19.2^*1 ---- ---- 253 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2

2019/10/20 17:24:06 280 12 177 203 270 2.3^*1 ---- ---- 283 C2 C3 PHTX DST Java Movie Very Poor Event

2019/10/20 23:24:06 92 9 208 240 577 15.0^*1 ---- ---- 91 C2 C3 PHTX DST Java Movie Very Poor Event

2019/10/22 14:37:18 118 16 282 469 1256 65.0^*1 ---- ---- 116 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2

2019/10/24 04:36:05 230 12 212 223 436 6.2^*1 ---- ---- 232 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2

2019/10/25 08:00:07 200 84 219 254 579 12.8^*1 4.2e+13 1.0e+28 204 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2

2019/10/25 08:48:05 180 130 83 76 0 -0.8^*1 5.1e+13^*2 1.7e+27^*2 189 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2; Partial Halo

2019/10/25 10:24:05 294 46 35 43 131 0.8^*1 1.3e+14 8.1e+26 289 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2

2019/10/26 00:48:05 293 14 65 80 143 0.8^*1 ---- ---- 288 C2 C3 PHTX DST Java Movie Very Poor Event

2019/10/26 17:24:05 297 21 264 357 439 7.6^*1 1.6e+13 5.6e+27 290 C2 C3 PHTX DST Java Movie Very Poor Event

2019/10/27 03:48:05 170 9 445 522 1642 107.4^*1 ---- ---- 167 C2 C3 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2

2019/10/27 23:24:06 259 16 314 293 238 -2.6^*1 ---- ---- 261 C2 C3 PHTX DST Java Movie

2019/10/28 15:24:05 256 9 204 189 61 -1.9^*1 ---- ---- 260 C2 C3 PHTX DST Java Movie Poor Event

2019/10/29 14:12:05 89 16 169 204 293 3.1^*1 ---- ---- 95 C2 C3 PHTX DST Java Movie Very Poor Event

2019/10/31 04:24:05 282 59 259 345 723 20.6^*1 1.4e+14 4.5e+28 290 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2

2019/10/31 08:48:05 256 22 188 257 669 17.8^*1 7.0e+13 1.2e+28 262 C2 C3 PHTX DST Java Movie Poor Event; Only C2

2019/10/31 10:12:05 262 23 234 244 305 1.7^*1 9.5e+13 2.6e+28 262 C2 C3 PHTX DST Java Movie Poor Event

2019/10/31 16:24:05 261 40 166 156 0 -1.6^*1 5.3e+14 7.3e+28 265 C2 C3 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
2019/10/01	03:12:11	95	55	202	83	0	-37.2^*1	2.6e+12	5.4e+26	90	C2 C3 PHTX DST Java Movie	Poor Event; Only C2
2019/10/02	03:12:10	137	9	563	863	2576	287.4^*1	----	----	128	C2 C3 PHTX DST Java Movie	Poor Event; Only C2
2019/10/02	09:12:11	248	56	77	72	0	-0.6^*1	2.2e+14	6.6e+27	274	C2 C3 PHTX DST Java Movie	Very Poor Event; Only C2
2019/10/02	18:12:05	112	25	278	303	476	6.8^*1	8.2e+13	3.2e+28	110	C2 C3 PHTX DST Java Movie	Poor Event; Only C2
2019/10/02	19:48:05	87	16	119	109	0	-1.8^*1	----	----	90	C2 C3 PHTX DST Java Movie	Very Poor Event
2019/10/03	10:36:05	253	16	159	121	0	-16.9^*1	----	----	249	C2 C3 PHTX DST Java Movie	Very Poor Event; Only C2
2019/10/03	23:24:07	86	25	166	209	995	40.2^*1	6.7e+11^*2	9.3e+25^*2	85	C2 C3 PHTX DST Java Movie	Very Poor Event; Only C2
2019/10/04	07:36:05	257	16	213	205	58	-2.1^*1	----	----	264	C2 C3 PHTX DST Java Movie	Very Poor Event
2019/10/04	10:00:06	292	12	250	319	1044	44.1^*1	----	----	287	C2 C3 PHTX DST Java Movie	Very Poor Event; Only C2
2019/10/04	17:36:05	119	10	314	284	0	-21.0^*1	----	----	120	C2 C3 PHTX DST Java Movie	Very Poor Event; Only C2
2019/10/05	21:24:05	279	15	200	202	210	0.2^*1	----	----	278	C2 C3 PHTX DST Java Movie	Poor Event
2019/10/06	21:48:05	88	23	209	252	392	5.8^*1	2.9e+13	6.4e+27	74	C2 C3 PHTX DST Java Movie	Poor Event
2019/10/08	09:48:05	131	12	304	467	1903	147.7^*1	----	----	132	C2 C3 PHTX DST Java Movie	Very Poor Event; Only C2
2019/10/09	17:12:06	113	24	91	97	156	0.7^*1	4.6e+13	1.9e+27	117	C2 C3 PHTX DST Java Movie	Poor Event; Only C2
2019/10/10	00:48:05	86	19	180	189	282	2.4^*1	----	----	89	C2 C3 PHTX DST Java Movie	Very Poor Event
2019/10/11	19:11:31	275	32	127	206	459	10.3^*1	2.5e+13	2.0e+27	278	C2 C3 PHTX DST Java Movie	Very Poor Event
2019/10/11	23:12:05	83	19	136	146	266	2.4^*1	----	----	78	C2 C3 PHTX DST Java Movie	Very Poor Event; Only C2
2019/10/13	09:36:06	51	8	198	248	1072	46.8^*1	----	----	51	C2 C3 PHTX DST Java Movie	Very Poor Event; Only C2
2019/10/13	17:00:05	285	66	157	373	343	4.9^*1	2.9e+15	3.6e+29	280	C2 C3 PHTX DST Java Movie
2019/10/13	20:24:05	114	12	216	252	341	3.8^*1	----	----	117	C2 C3 PHTX DST Java Movie	Poor Event
2019/10/13	23:36:05	104	27	229	168	0	-35.0^*1	2.1e+13	5.4e+27	96	C2 C3 PHTX DST Java Movie	Poor Event; Only C2
2019/10/14	19:36:05	284	37	130	245	271	3.1^*1	1.3e+15	1.1e+29	278	C2 C3 PHTX DST Java Movie	Poor Event
2019/10/15	08:00:05	78	15	144	167	360	4.7^*1	----	----	82	C2 C3 PHTX DST Java Movie	Very Poor Event; Only C2
2019/10/15	22:00:05	278	7	367	398	580	10.9^*1	----	----	284	C2 C3 PHTX DST Java Movie	Very Poor Event
2019/10/16	11:00:05	266	20	227	222	154	-1.2^*1	1.3e+12	3.2e+26	266	C2 C3 PHTX DST Java Movie	Very Poor Event; Only C2
2019/10/16	12:48:05	116	13	263	287	386	4.5^*1	----	----	113	C2 C3 PHTX DST Java Movie	Very Poor Event
2019/10/17	00:36:05	277	29	124	162	278	3.1^*1	6.1e+13	4.7e+27	284	C2 C3 PHTX DST Java Movie	Very Poor Event
2019/10/17	06:36:05	285	20	105	98	35	-0.5^*1	8.4e+12	4.6e+26	284	C2 C3 PHTX DST Java Movie	Very Poor Event
2019/10/17	21:36:05	195	7	372	170	0	-280.5^*1	----	----	198	C2 C3 PHTX DST Java Movie	Very Poor Event; Only 3 points; Only C2
2019/10/19	02:12:05	195	11	658	912	2420	235.0^*1	----	----	197	C2 C3 PHTX DST Java Movie	Poor Event; Only C2
2019/10/20	16:24:05	256	15	211	253	703	19.2^*1	----	----	253	C2 C3 PHTX DST Java Movie	Very Poor Event; Only C2
2019/10/20	17:24:06	280	12	177	203	270	2.3^*1	----	----	283	C2 C3 PHTX DST Java Movie	Very Poor Event
2019/10/20	23:24:06	92	9	208	240	577	15.0^*1	----	----	91	C2 C3 PHTX DST Java Movie	Very Poor Event
2019/10/22	14:37:18	118	16	282	469	1256	65.0^*1	----	----	116	C2 C3 PHTX DST Java Movie	Very Poor Event; Only C2
2019/10/24	04:36:05	230	12	212	223	436	6.2^*1	----	----	232	C2 C3 PHTX DST Java Movie	Very Poor Event; Only C2
2019/10/25	08:00:07	200	84	219	254	579	12.8^*1	4.2e+13	1.0e+28	204	C2 C3 PHTX DST Java Movie	Very Poor Event; Only C2
2019/10/25	08:48:05	180	130	83	76	0	-0.8^*1	5.1e+13^*2	1.7e+27^*2	189	C2 C3 PHTX DST Java Movie	Very Poor Event; Only C2; Partial Halo
2019/10/25	10:24:05	294	46	35	43	131	0.8^*1	1.3e+14	8.1e+26	289	C2 C3 PHTX DST Java Movie	Very Poor Event; Only C2
2019/10/26	00:48:05	293	14	65	80	143	0.8^*1	----	----	288	C2 C3 PHTX DST Java Movie	Very Poor Event
2019/10/26	17:24:05	297	21	264	357	439	7.6^*1	1.6e+13	5.6e+27	290	C2 C3 PHTX DST Java Movie	Very Poor Event
2019/10/27	03:48:05	170	9	445	522	1642	107.4^*1	----	----	167	C2 C3 PHTX DST Java Movie	Very Poor Event; Only 3 points; Only C2
2019/10/27	23:24:06	259	16	314	293	238	-2.6^*1	----	----	261	C2 C3 PHTX DST Java Movie
2019/10/28	15:24:05	256	9	204	189	61	-1.9^*1	----	----	260	C2 C3 PHTX DST Java Movie	Poor Event
2019/10/29	14:12:05	89	16	169	204	293	3.1^*1	----	----	95	C2 C3 PHTX DST Java Movie	Very Poor Event
2019/10/31	04:24:05	282	59	259	345	723	20.6^*1	1.4e+14	4.5e+28	290	C2 C3 PHTX DST Java Movie	Very Poor Event; Only C2
2019/10/31	08:48:05	256	22	188	257	669	17.8^*1	7.0e+13	1.2e+28	262	C2 C3 PHTX DST Java Movie	Poor Event; Only C2
2019/10/31	10:12:05	262	23	234	244	305	1.7^*1	9.5e+13	2.6e+28	262	C2 C3 PHTX DST Java Movie	Poor Event
2019/10/31	16:24:05	261	40	166	156	0	-1.6^*1	5.3e+14	7.3e+28	265	C2 C3 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).