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

1996/05/01 08:41:46 94 95 314 327 322 0.7 1.8e+15 8.9e+29 70 C2 C3 195 SXT PHTX DST Java Movie Only C3

1996/05/02 01:55:35 85 83 226 226 226 -0.0^*1 1.7e+15^*2 4.4e+29^*2 101 C2 C3 195 SXT PHTX DST Java Movie Only 3 points; Only C3

1996/05/02 18:31:52 88 58 182 --- --- --- 7.8e+13^*2 1.3e+28^*2 94 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only 2 points

1996/05/02 23:07:21 88 43 224 266 274 2.2^*1 2.6e+14^*2 6.5e+28^*2 93 C2 C3 195 SXT PHTX DST Java Movie Poor Event

1996/05/02 23:07:21 260 47 78 92 161 0.9^*1 1.2e+14^*2 3.7e+27^*2 263 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only 3 points

1996/05/03 11:30:47 92 62 325 340 334 2.0^*1 4.1e+13^*2 2.1e+28^*2 78 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only C3

1996/05/05 07:02:06 92 56 373 --- --- --- 2.1e+15^*2 1.5e+30^*2 82 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only 2 points; Only C3

1996/05/05 20:36:33 94 69 388 380 382 -0.6 3.3e+15 2.5e+30 75 C2 C3 195 SXT PHTX DST Java Movie Only C3

1996/05/06 09:42:38 88 73 430 360 404 -5.0^*1 2.7e+15 2.5e+30 83 C2 C3 195 SXT PHTX DST Java Movie Only C3

1996/05/06 17:07:53 90 46 340 547 1009 46.1^*1 1.4e+14^*2 8.2e+28^*2 104 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only 3 points

1996/05/07 02:24:06 263 22 62 111 373 6.2^*1 1.0e+14^*2 2.0e+27^*2 265 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only C2

1996/05/07 05:24:58 95 40 154 95 0 -6.3^*1 2.3e+14^*2 2.8e+28^*2 93 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event

1996/05/07 21:34:54 80 26 127 234 438 8.1^*1 ---- ---- 81 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event

1996/05/09 12:29:36 81 16 95 108 172 1.1^*1 ---- ---- 82 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event

1996/05/09 13:49:01 265 41 21 11 0 -0.8^*1 ---- ---- 267 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only C2

1996/05/09 22:22:02 101 22 33 38 104 0.4^*1 1.2e+14 6.7e+26 97 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only C2

1996/05/10 04:11:26 265 43 29 43 100 0.4^*1 ---- ---- 262 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only C2

1996/05/11 04:01:36 265 43 118 120 138 0.2^*1 ---- ---- 263 C2 C3 195 SXT PHTX DST Java Movie Only C2

1996/05/11 08:31:10 268 58 476 485 489 0.9 4.9e+14 5.6e+29 269 C2 C3 195 SXT PHTX DST Java Movie

1996/05/11 13:00:31 99 32 113 179 226 2.3^*1 4.0e+14 2.6e+28 102 C2 C3 195 SXT PHTX DST Java Movie Poor Event

1996/05/12 06:47:11 97 16 70 52 0 -3.3^*1 ---- ---- 100 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2

1996/05/13 00:47:27 91 22 45 75 157 1.1^*1 7.1e+12 7.2e+25 98 C2 C3 195 SXT PHTX DST Java Movie Poor Event

1996/05/13 12:27:15 268 38 68 41 0 -2.0^*1 3.4e+13 7.9e+26 271 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only C2

1996/05/13 19:16:59 273 20 33 33 36 0.0^*1 ---- ---- 271 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only C2

1996/05/14 02:57:22 75 20 201 201 203 0.0^*1 5.6e+12^*2 1.1e+27^*2 83 C2 C3 195 SXT PHTX DST Java Movie Poor Event

1996/05/14 11:36:12 328 13 68 56 0 -2.1^*1 ---- ---- 320 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2

1996/05/14 15:57:48 277 33 41 6 0 -2.9^*1 ---- ---- 272 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only C2

1996/05/16 09:54:19 98 50 109 149 456 9.0^*1 ---- ---- 96 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only C2

1996/05/16 15:16:21 270 52 310 324 352 1.5^*1 3.0e+14^*2 1.5e+29^*2 269 C2 C3 195 SXT PHTX DST Java Movie Poor Event

1996/05/17 08:34:37 268 58 287 260 177 -3.0^*1 2.7e+13 1.1e+28 269 C2 C3 195 SXT PHTX DST Java Movie Poor Event

1996/05/17 19:47:21 90 56 33 30 0 -0.2^*1 ---- ---- 90 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only C2

1996/05/18 17:07:38 272 68 269 218 141 -5.5^*1 9.1e+14^*2 3.3e+29^*2 267 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only 3 points; Only C3

1996/05/19 02:07:35 270 57 101 118 149 0.7^*1 6.5e+14 3.3e+28 262 C2 C3 195 SXT PHTX DST Java Movie

1996/05/22 02:55:40 273 19 80 34 0 -6.9^*1 ---- ---- 272 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only C2

1996/05/22 02:55:40 97 42 221 225 233 0.4^*1 7.7e+14 1.9e+29 98 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only C3

1996/05/22 06:48:33 271 23 178 153 0 -6.4^*1 ---- ---- 273 C2 C3 195 SXT PHTX DST Java Movie Only C2

1996/05/22 07:36:21 340 8 275 --- --- --- ---- ---- 331 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only 2 points; Only C3

1996/05/22 12:54:54 97 38 192 176 0 -5.3^*1 ---- ---- 90 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only 3 points; Only C2

1996/05/24 08:14:14 100 13 277 344 366 4.3^*1 ---- ---- 102 C2 C3 SXT PHTX DST Java Movie Poor Event

1996/05/24 21:11:23 267 27 265 361 798 25.3^*1 3.8e+12^*2 1.3e+27^*2 275 C2 C3 SXT PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2

1996/05/25 02:58:36 254 30 190 248 432 8.0^*1 4.2e+13 7.6e+27 265 C2 C3 195 SXT PHTX DST Java Movie Poor Event

1996/05/25 08:32:27 260 30 150 225 289 3.5^*1 1.1e+13 1.2e+27 262 C2 C3 195 SXT PHTX DST Java Movie Poor Event

1996/05/26 03:34:10 265 15 245 332 343 4.1^*1 ---- ---- 262 C2 C3 195 SXT PHTX DST Java Movie Poor Event

1996/05/27 01:56:00 98 42 68 89 273 3.1^*1 ---- ---- 96 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only C2

1996/05/27 05:48:38 265 36 87 51 0 -6.6^*1 ---- ---- 264 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only C2

1996/05/27 16:32:27 93 38 81 71 0 -1.1^*1 ---- ---- 88 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only C2

1996/05/28 12:17:35 99 58 27 33 81 0.3^*1 ---- ---- 94 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only C2

1996/05/29 18:09:18 95 42 91 151 204 1.8^*1 ---- ---- 93 C2 C3 195 SXT PHTX DST Java Movie Poor Event

1996/05/30 01:58:29 267 17 299 348 318 2.1^*1 ---- ---- 264 C2 C3 195 SXT PHTX DST Java Movie Only C3

1996/05/30 08:45:36 92 43 64 74 113 0.4^*1 1.6e+14 3.3e+27 94 C2 C3 195 SXT PHTX DST Java Movie Poor Event

1996/05/30 20:13:42 92 36 96 143 432 8.1^*1 ---- ---- 94 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only C2

1996/05/31 01:02:26 213 6 201 237 589 13.6^*1 ---- ---- 224 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2

1996/05/31 07:08:45 91 40 165 45 0 -17.8^*1 ---- ---- 94 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event

1996/05/31 16:23:31 267 30 33 38 109 0.5^*1 ---- ---- 267 C2 C3 195 SXT 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
1996/05/01	08:41:46	94	95	314	327	322	0.7	1.8e+15	8.9e+29	70	C2 C3 195 SXT PHTX DST Java Movie	Only C3
1996/05/02	01:55:35	85	83	226	226	226	-0.0^*1	1.7e+15^*2	4.4e+29^*2	101	C2 C3 195 SXT PHTX DST Java Movie	Only 3 points; Only C3
1996/05/02	18:31:52	88	58	182	---	---	---	7.8e+13^*2	1.3e+28^*2	94	C2 C3 195 SXT PHTX DST Java Movie	Poor Event; Only 2 points
1996/05/02	23:07:21	88	43	224	266	274	2.2^*1	2.6e+14^*2	6.5e+28^*2	93	C2 C3 195 SXT PHTX DST Java Movie	Poor Event
1996/05/02	23:07:21	260	47	78	92	161	0.9^*1	1.2e+14^*2	3.7e+27^*2	263	C2 C3 195 SXT PHTX DST Java Movie	Poor Event; Only 3 points
1996/05/03	11:30:47	92	62	325	340	334	2.0^*1	4.1e+13^*2	2.1e+28^*2	78	C2 C3 195 SXT PHTX DST Java Movie	Poor Event; Only C3
1996/05/05	07:02:06	92	56	373	---	---	---	2.1e+15^*2	1.5e+30^*2	82	C2 C3 195 SXT PHTX DST Java Movie	Poor Event; Only 2 points; Only C3
1996/05/05	20:36:33	94	69	388	380	382	-0.6	3.3e+15	2.5e+30	75	C2 C3 195 SXT PHTX DST Java Movie	Only C3
1996/05/06	09:42:38	88	73	430	360	404	-5.0^*1	2.7e+15	2.5e+30	83	C2 C3 195 SXT PHTX DST Java Movie	Only C3
1996/05/06	17:07:53	90	46	340	547	1009	46.1^*1	1.4e+14^*2	8.2e+28^*2	104	C2 C3 195 SXT PHTX DST Java Movie	Poor Event; Only 3 points
1996/05/07	02:24:06	263	22	62	111	373	6.2^*1	1.0e+14^*2	2.0e+27^*2	265	C2 C3 195 SXT PHTX DST Java Movie	Very Poor Event; Only C2
1996/05/07	05:24:58	95	40	154	95	0	-6.3^*1	2.3e+14^*2	2.8e+28^*2	93	C2 C3 195 SXT PHTX DST Java Movie	Very Poor Event
1996/05/07	21:34:54	80	26	127	234	438	8.1^*1	----	----	81	C2 C3 195 SXT PHTX DST Java Movie	Very Poor Event
1996/05/09	12:29:36	81	16	95	108	172	1.1^*1	----	----	82	C2 C3 195 SXT PHTX DST Java Movie	Very Poor Event
1996/05/09	13:49:01	265	41	21	11	0	-0.8^*1	----	----	267	C2 C3 195 SXT PHTX DST Java Movie	Very Poor Event; Only C2
1996/05/09	22:22:02	101	22	33	38	104	0.4^*1	1.2e+14	6.7e+26	97	C2 C3 195 SXT PHTX DST Java Movie	Very Poor Event; Only C2
1996/05/10	04:11:26	265	43	29	43	100	0.4^*1	----	----	262	C2 C3 195 SXT PHTX DST Java Movie	Very Poor Event; Only C2
1996/05/11	04:01:36	265	43	118	120	138	0.2^*1	----	----	263	C2 C3 195 SXT PHTX DST Java Movie	Only C2
1996/05/11	08:31:10	268	58	476	485	489	0.9	4.9e+14	5.6e+29	269	C2 C3 195 SXT PHTX DST Java Movie
1996/05/11	13:00:31	99	32	113	179	226	2.3^*1	4.0e+14	2.6e+28	102	C2 C3 195 SXT PHTX DST Java Movie	Poor Event
1996/05/12	06:47:11	97	16	70	52	0	-3.3^*1	----	----	100	C2 C3 195 SXT PHTX DST Java Movie	Very Poor Event; Only 3 points; Only C2
1996/05/13	00:47:27	91	22	45	75	157	1.1^*1	7.1e+12	7.2e+25	98	C2 C3 195 SXT PHTX DST Java Movie	Poor Event
1996/05/13	12:27:15	268	38	68	41	0	-2.0^*1	3.4e+13	7.9e+26	271	C2 C3 195 SXT PHTX DST Java Movie	Poor Event; Only C2
1996/05/13	19:16:59	273	20	33	33	36	0.0^*1	----	----	271	C2 C3 195 SXT PHTX DST Java Movie	Very Poor Event; Only C2
1996/05/14	02:57:22	75	20	201	201	203	0.0^*1	5.6e+12^*2	1.1e+27^*2	83	C2 C3 195 SXT PHTX DST Java Movie	Poor Event
1996/05/14	11:36:12	328	13	68	56	0	-2.1^*1	----	----	320	C2 C3 195 SXT PHTX DST Java Movie	Very Poor Event; Only 3 points; Only C2
1996/05/14	15:57:48	277	33	41	6	0	-2.9^*1	----	----	272	C2 C3 195 SXT PHTX DST Java Movie	Very Poor Event; Only C2
1996/05/16	09:54:19	98	50	109	149	456	9.0^*1	----	----	96	C2 C3 195 SXT PHTX DST Java Movie	Poor Event; Only C2
1996/05/16	15:16:21	270	52	310	324	352	1.5^*1	3.0e+14^*2	1.5e+29^*2	269	C2 C3 195 SXT PHTX DST Java Movie	Poor Event
1996/05/17	08:34:37	268	58	287	260	177	-3.0^*1	2.7e+13	1.1e+28	269	C2 C3 195 SXT PHTX DST Java Movie	Poor Event
1996/05/17	19:47:21	90	56	33	30	0	-0.2^*1	----	----	90	C2 C3 195 SXT PHTX DST Java Movie	Very Poor Event; Only C2
1996/05/18	17:07:38	272	68	269	218	141	-5.5^*1	9.1e+14^*2	3.3e+29^*2	267	C2 C3 195 SXT PHTX DST Java Movie	Poor Event; Only 3 points; Only C3
1996/05/19	02:07:35	270	57	101	118	149	0.7^*1	6.5e+14	3.3e+28	262	C2 C3 195 SXT PHTX DST Java Movie
1996/05/22	02:55:40	273	19	80	34	0	-6.9^*1	----	----	272	C2 C3 195 SXT PHTX DST Java Movie	Poor Event; Only C2
1996/05/22	02:55:40	97	42	221	225	233	0.4^*1	7.7e+14	1.9e+29	98	C2 C3 195 SXT PHTX DST Java Movie	Poor Event; Only C3
1996/05/22	06:48:33	271	23	178	153	0	-6.4^*1	----	----	273	C2 C3 195 SXT PHTX DST Java Movie	Only C2
1996/05/22	07:36:21	340	8	275	---	---	---	----	----	331	C2 C3 195 SXT PHTX DST Java Movie	Very Poor Event; Only 2 points; Only C3
1996/05/22	12:54:54	97	38	192	176	0	-5.3^*1	----	----	90	C2 C3 195 SXT PHTX DST Java Movie	Poor Event; Only 3 points; Only C2
1996/05/24	08:14:14	100	13	277	344	366	4.3^*1	----	----	102	C2 C3 SXT PHTX DST Java Movie	Poor Event
1996/05/24	21:11:23	267	27	265	361	798	25.3^*1	3.8e+12^*2	1.3e+27^*2	275	C2 C3 SXT PHTX DST Java Movie	Very Poor Event; Only 3 points; Only C2
1996/05/25	02:58:36	254	30	190	248	432	8.0^*1	4.2e+13	7.6e+27	265	C2 C3 195 SXT PHTX DST Java Movie	Poor Event
1996/05/25	08:32:27	260	30	150	225	289	3.5^*1	1.1e+13	1.2e+27	262	C2 C3 195 SXT PHTX DST Java Movie	Poor Event
1996/05/26	03:34:10	265	15	245	332	343	4.1^*1	----	----	262	C2 C3 195 SXT PHTX DST Java Movie	Poor Event
1996/05/27	01:56:00	98	42	68	89	273	3.1^*1	----	----	96	C2 C3 195 SXT PHTX DST Java Movie	Very Poor Event; Only C2
1996/05/27	05:48:38	265	36	87	51	0	-6.6^*1	----	----	264	C2 C3 195 SXT PHTX DST Java Movie	Very Poor Event; Only C2
1996/05/27	16:32:27	93	38	81	71	0	-1.1^*1	----	----	88	C2 C3 195 SXT PHTX DST Java Movie	Poor Event; Only C2
1996/05/28	12:17:35	99	58	27	33	81	0.3^*1	----	----	94	C2 C3 195 SXT PHTX DST Java Movie	Poor Event; Only C2
1996/05/29	18:09:18	95	42	91	151	204	1.8^*1	----	----	93	C2 C3 195 SXT PHTX DST Java Movie	Poor Event
1996/05/30	01:58:29	267	17	299	348	318	2.1^*1	----	----	264	C2 C3 195 SXT PHTX DST Java Movie	Only C3
1996/05/30	08:45:36	92	43	64	74	113	0.4^*1	1.6e+14	3.3e+27	94	C2 C3 195 SXT PHTX DST Java Movie	Poor Event
1996/05/30	20:13:42	92	36	96	143	432	8.1^*1	----	----	94	C2 C3 195 SXT PHTX DST Java Movie	Very Poor Event; Only C2
1996/05/31	01:02:26	213	6	201	237	589	13.6^*1	----	----	224	C2 C3 195 SXT PHTX DST Java Movie	Very Poor Event; Only 3 points; Only C2
1996/05/31	07:08:45	91	40	165	45	0	-17.8^*1	----	----	94	C2 C3 195 SXT PHTX DST Java Movie	Very Poor Event
1996/05/31	16:23:31	267	30	33	38	109	0.5^*1	----	----	267	C2 C3 195 SXT 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).