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

2019/06/02 06:00:05 106 22 167 142 0 -11.2^*1 7.5e+12 1.0e+27 108 C2 C3 PHTX DST Java Movie Poor Event; Only C2

2019/06/03 05:24:06 267 25 167 148 0 -4.5^*1 1.8e+13 2.6e+27 269 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2

2019/06/03 14:24:05 357 8 499 273 0 -164.7^*1 ---- ---- 358 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2

2019/06/04 15:36:05 104 23 155 145 0 -2.6^*1 9.1e+12 1.1e+27 114 C2 C3 PHTX DST Java Movie Poor Event; Only C2

2019/06/04 15:36:05 276 23 232 403 1018 42.2^*1 5.5e+13 1.5e+28 276 C2 C3 PHTX DST Java Movie Poor Event; Only C2

2019/06/07 04:28:18 248 10 174 85 0 -17.4^*1 ---- ---- 254 C2 C3 PHTX DST Java Movie Poor Event; Only C2

2019/06/07 11:24:05 350 5 353 432 1368 73.8^*1 ---- ---- 351 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2

2019/06/07 11:48:05 271 37 179 245 562 12.5^*1 1.5e+13 2.4e+27 264 C2 C3 PHTX DST Java Movie Poor Event; Only C2

2019/06/10 08:24:05 80 31 171 104 0 -28.7^*1 1.7e+13 2.4e+27 83 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2

2019/06/11 00:24:05 85 31 125 121 82 -0.4^*1 6.5e+13 5.1e+27 87 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2

2019/06/11 15:36:05 246 5 249 164 0 -61.2^*1 ---- ---- 251 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2

2019/06/12 19:00:35 323 13 232 409 2454 250.6^*1 ---- ---- 322 C2 C3 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2

2019/06/14 02:24:05 285 19 157 79 0 -17.6^*1 ---- ---- 275 C2 C3 PHTX DST Java Movie Very Poor Event

2019/06/14 23:12:10 85 19 194 217 367 4.9^*1 ---- ---- 90 C2 C3 PHTX DST Java Movie Very Poor Event

2019/06/16 14:24:05 297 9 157 234 951 37.0^*1 ---- ---- 293 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2

2019/06/18 03:12:11 108 17 465 553 900 28.1^*1 ---- ---- 105 C2 C3 PHTX DST Java Movie Poor Event

2019/06/18 07:48:05 258 53 333 298 293 -2.0 1.2e+15 6.6e+29 254 C2 C3 PHTX DST Java Movie

2019/06/18 11:12:06 258 26 287 260 92 -3.7^*1 8.2e+12 3.4e+27 253 C2 C3 PHTX DST Java Movie

2019/06/19 00:24:06 297 8 110 68 0 -24.6^*1 ---- ---- 297 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2

2019/06/19 09:48:05 92 34 232 252 323 2.4^*1 1.3e+14 3.4e+28 93 C2 C3 PHTX DST Java Movie Poor Event

2019/06/19 21:12:09 265 60 131 153 301 3.3^*1 1.2e+14 1.0e+28 264 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2

2019/06/19 21:48:05 96 33 104 116 184 1.0^*1 4.9e+13 2.6e+27 86 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2

2019/06/21 18:36:05 217 8 387 357 0 -26.9^*1 ---- ---- 219 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2

2019/06/22 06:36:05 122 10 324 344 648 13.5^*1 ---- ---- 122 C2 C3 PHTX DST Java Movie Poor Event; Only C2

2019/06/23 10:12:05 107 5 223 257 484 8.4^*1 ---- ---- 109 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2

2019/06/24 04:00:05 250 18 222 129 0 -18.2^*1 ---- ---- 250 C2 C3 PHTX DST Java Movie Poor Event; Only C2

2019/06/24 10:12:05 253 19 219 278 623 15.3^*1 ---- ---- 257 C2 C3 PHTX DST Java Movie Poor Event; Only C2

2019/06/25 00:12:05 83 8 192 285 742 24.9^*1 ---- ---- 84 C2 C3 PHTX DST Java Movie Very Poor Event

2019/06/25 01:25:42 275 47 64 60 32 -0.1^*1 3.1e+14 6.2e+27 270 C2 C3 PHTX DST Java Movie Poor Event

2019/06/25 23:48:07 273 17 308 304 300 -0.3^*1 ---- ---- 279 C2 C3 PHTX DST Java Movie

2019/06/26 09:12:11 257 9 428 392 0 -24.5^*1 ---- ---- 262 C2 C3 PHTX DST Java Movie Poor Event; Only C2

2019/06/27 22:24:05 215 6 221 341 1123 52.8^*1 ---- ---- 219 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2

2019/06/28 01:25:41 276 8 130 153 333 4.3^*1 ---- ---- 276 C2 C3 PHTX DST Java Movie Very Poor Event

2019/06/28 01:25:41 256 19 226 206 0 -3.2^*1 ---- ---- 255 C2 C3 PHTX DST Java Movie Poor Event

2019/06/28 09:48:05 87 34 438 399 0 -11.5^*1 2.0e+14 1.9e+29 91 C2 C3 PHTX DST Java Movie Poor Event

2019/06/28 13:25:40 255 10 325 0 0 -207.7^*1 ---- ---- 258 C2 C3 PHTX DST Java Movie Poor Event; Only C2

2019/06/28 20:48:05 116 9 133 137 196 0.9^*1 ---- ---- 115 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2

2019/06/29 12:00:05 117 9 236 294 483 9.2^*1 ---- ---- 113 C2 C3 PHTX DST Java Movie Very Poor Event

2019/06/30 07:48:05 84 42 168 173 205 0.6^*1 8.3e+13 1.2e+28 91 C2 PHTX DST Java Movie Poor Event

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
2019/06/02	06:00:05	106	22	167	142	0	-11.2^*1	7.5e+12	1.0e+27	108	C2 C3 PHTX DST Java Movie	Poor Event; Only C2
2019/06/03	05:24:06	267	25	167	148	0	-4.5^*1	1.8e+13	2.6e+27	269	C2 C3 PHTX DST Java Movie	Very Poor Event; Only C2
2019/06/03	14:24:05	357	8	499	273	0	-164.7^*1	----	----	358	C2 C3 PHTX DST Java Movie	Very Poor Event; Only C2
2019/06/04	15:36:05	104	23	155	145	0	-2.6^*1	9.1e+12	1.1e+27	114	C2 C3 PHTX DST Java Movie	Poor Event; Only C2
2019/06/04	15:36:05	276	23	232	403	1018	42.2^*1	5.5e+13	1.5e+28	276	C2 C3 PHTX DST Java Movie	Poor Event; Only C2
2019/06/07	04:28:18	248	10	174	85	0	-17.4^*1	----	----	254	C2 C3 PHTX DST Java Movie	Poor Event; Only C2
2019/06/07	11:24:05	350	5	353	432	1368	73.8^*1	----	----	351	C2 C3 PHTX DST Java Movie	Very Poor Event; Only C2
2019/06/07	11:48:05	271	37	179	245	562	12.5^*1	1.5e+13	2.4e+27	264	C2 C3 PHTX DST Java Movie	Poor Event; Only C2
2019/06/10	08:24:05	80	31	171	104	0	-28.7^*1	1.7e+13	2.4e+27	83	C2 C3 PHTX DST Java Movie	Very Poor Event; Only C2
2019/06/11	00:24:05	85	31	125	121	82	-0.4^*1	6.5e+13	5.1e+27	87	C2 C3 PHTX DST Java Movie	Very Poor Event; Only C2
2019/06/11	15:36:05	246	5	249	164	0	-61.2^*1	----	----	251	C2 C3 PHTX DST Java Movie	Very Poor Event; Only C2
2019/06/12	19:00:35	323	13	232	409	2454	250.6^*1	----	----	322	C2 C3 PHTX DST Java Movie	Very Poor Event; Only 3 points; Only C2
2019/06/14	02:24:05	285	19	157	79	0	-17.6^*1	----	----	275	C2 C3 PHTX DST Java Movie	Very Poor Event
2019/06/14	23:12:10	85	19	194	217	367	4.9^*1	----	----	90	C2 C3 PHTX DST Java Movie	Very Poor Event
2019/06/16	14:24:05	297	9	157	234	951	37.0^*1	----	----	293	C2 C3 PHTX DST Java Movie	Very Poor Event; Only C2
2019/06/18	03:12:11	108	17	465	553	900	28.1^*1	----	----	105	C2 C3 PHTX DST Java Movie	Poor Event
2019/06/18	07:48:05	258	53	333	298	293	-2.0	1.2e+15	6.6e+29	254	C2 C3 PHTX DST Java Movie
2019/06/18	11:12:06	258	26	287	260	92	-3.7^*1	8.2e+12	3.4e+27	253	C2 C3 PHTX DST Java Movie
2019/06/19	00:24:06	297	8	110	68	0	-24.6^*1	----	----	297	C2 C3 PHTX DST Java Movie	Very Poor Event; Only C2
2019/06/19	09:48:05	92	34	232	252	323	2.4^*1	1.3e+14	3.4e+28	93	C2 C3 PHTX DST Java Movie	Poor Event
2019/06/19	21:12:09	265	60	131	153	301	3.3^*1	1.2e+14	1.0e+28	264	C2 C3 PHTX DST Java Movie	Very Poor Event; Only C2
2019/06/19	21:48:05	96	33	104	116	184	1.0^*1	4.9e+13	2.6e+27	86	C2 C3 PHTX DST Java Movie	Very Poor Event; Only C2
2019/06/21	18:36:05	217	8	387	357	0	-26.9^*1	----	----	219	C2 C3 PHTX DST Java Movie	Very Poor Event; Only C2
2019/06/22	06:36:05	122	10	324	344	648	13.5^*1	----	----	122	C2 C3 PHTX DST Java Movie	Poor Event; Only C2
2019/06/23	10:12:05	107	5	223	257	484	8.4^*1	----	----	109	C2 C3 PHTX DST Java Movie	Very Poor Event; Only C2
2019/06/24	04:00:05	250	18	222	129	0	-18.2^*1	----	----	250	C2 C3 PHTX DST Java Movie	Poor Event; Only C2
2019/06/24	10:12:05	253	19	219	278	623	15.3^*1	----	----	257	C2 C3 PHTX DST Java Movie	Poor Event; Only C2
2019/06/25	00:12:05	83	8	192	285	742	24.9^*1	----	----	84	C2 C3 PHTX DST Java Movie	Very Poor Event
2019/06/25	01:25:42	275	47	64	60	32	-0.1^*1	3.1e+14	6.2e+27	270	C2 C3 PHTX DST Java Movie	Poor Event
2019/06/25	23:48:07	273	17	308	304	300	-0.3^*1	----	----	279	C2 C3 PHTX DST Java Movie
2019/06/26	09:12:11	257	9	428	392	0	-24.5^*1	----	----	262	C2 C3 PHTX DST Java Movie	Poor Event; Only C2
2019/06/27	22:24:05	215	6	221	341	1123	52.8^*1	----	----	219	C2 C3 PHTX DST Java Movie	Very Poor Event; Only C2
2019/06/28	01:25:41	276	8	130	153	333	4.3^*1	----	----	276	C2 C3 PHTX DST Java Movie	Very Poor Event
2019/06/28	01:25:41	256	19	226	206	0	-3.2^*1	----	----	255	C2 C3 PHTX DST Java Movie	Poor Event
2019/06/28	09:48:05	87	34	438	399	0	-11.5^*1	2.0e+14	1.9e+29	91	C2 C3 PHTX DST Java Movie	Poor Event
2019/06/28	13:25:40	255	10	325	0	0	-207.7^*1	----	----	258	C2 C3 PHTX DST Java Movie	Poor Event; Only C2
2019/06/28	20:48:05	116	9	133	137	196	0.9^*1	----	----	115	C2 C3 PHTX DST Java Movie	Very Poor Event; Only C2
2019/06/29	12:00:05	117	9	236	294	483	9.2^*1	----	----	113	C2 C3 PHTX DST Java Movie	Very Poor Event
2019/06/30	07:48:05	84	42	168	173	205	0.6^*1	8.3e+13	1.2e+28	91	C2 PHTX DST Java Movie	Poor Event

*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).