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

2019/07/01 19:12:05 115 44 382 483 493 7.2^*1 4.8e+12 3.5e+27 105 C2 C3 PHTX DST Java Movie

2019/07/02 01:48:06 120 22 196 262 580 14.6^*1 1.6e+12 3.1e+26 114 C2 C3 PHTX DST Java Movie Poor Event

2019/07/03 09:12:08 109 9 240 188 0 -34.9^*1 ---- ---- 109 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2

2019/07/03 10:24:05 272 54 168 170 183 0.2^*1 4.6e+13 6.5e+27 268 C2 C3 PHTX DST Java Movie Poor Event; Only C2

2019/07/04 05:48:05 241 11 313 393 867 28.9^*1 ---- ---- 246 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2

2019/07/04 07:12:07 245 11 180 272 645 17.1^*1 ---- ---- 246 C2 C3 PHTX DST Java Movie Poor Event; Only C2

2019/07/04 08:48:05 198 6 480 975 3226 437.3^*1 ---- ---- 203 C2 C3 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2

2019/07/05 00:48:05 85 31 81 101 285 3.2^*1 1.7e+13 5.5e+26 91 C2 C3 PHTX DST Java Movie Poor Event; Only C2

2019/07/05 03:12:10 41 11 291 187 0 -54.8^*1 ---- ---- 45 C2 C3 PHTX DST Java Movie Poor Event; Only C2

2019/07/05 12:36:05 242 9 144 135 0 -1.5^*1 ---- ---- 242 C2 C3 PHTX DST Java Movie Poor Event; Only C2

2019/07/05 16:48:05 334 11 256 109 0 -85.3^*1 ---- ---- 332 C2 C3 PHTX DST Java Movie Poor Event; Only C2

2019/07/06 21:48:05 88 52 110 144 323 4.0^*1 3.0e+14 1.8e+28 95 C2 C3 PHTX DST Java Movie Only C2

2019/07/09 03:36:05 92 44 187 165 0 -5.1^*1 7.3e+11 1.3e+26 89 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2

2019/07/09 14:36:15 250 10 254 386 1046 44.7^*1 ---- ---- 247 C2 C3 PHTX DST Java Movie Poor Event; Only C2

2019/07/11 16:24:05 88 45 208 395 576 13.7^*1 5.9e+14 1.3e+29 89 C2 C3 PHTX DST Java Movie

2019/07/12 00:12:05 81 20 59 63 84 0.2^*1 1.2e+13 2.0e+26 82 C2 C3 PHTX DST Java Movie Poor Event

2019/07/12 10:12:06 290 16 129 86 0 -4.4^*1 ---- ---- 286 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2

2019/07/13 02:36:05 303 53 200 212 287 2.0^*1 8.4e+11 1.7e+26 301 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2

2019/07/13 22:36:06 84 8 150 135 0 -3.1^*1 ---- ---- 83 C2 C3 PHTX DST Java Movie Very Poor Event

2019/07/14 02:24:05 77 10 178 159 0 -10.8^*1 ---- ---- 84 C2 C3 PHTX DST Java Movie Very Poor Event

2019/07/14 02:48:05 251 25 351 424 722 18.5^*1 8.7e+13 5.3e+28 251 C2 C3 PHTX DST Java Movie

2019/07/14 05:36:05 293 12 276 272 226 -1.2^*1 ---- ---- 291 C2 C3 PHTX DST Java Movie Poor Event

2019/07/14 10:24:05 82 39 151 181 361 5.1^*1 1.4e+13 1.6e+27 87 C2 C3 PHTX DST Java Movie Poor Event

2019/07/14 13:25:43 81 12 159 156 116 -0.6^*1 ---- ---- 84 C2 C3 PHTX DST Java Movie Very Poor Event

2019/07/14 16:00:05 80 13 145 178 396 6.3^*1 ---- ---- 84 C2 C3 PHTX DST Java Movie Poor Event

2019/07/14 18:24:05 247 27 191 153 0 -9.9^*1 8.0e+12 1.5e+27 247 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2

2019/07/15 05:12:05 99 13 120 87 0 -7.0^*1 ---- ---- 98 C2 C3 PHTX DST Java Movie Poor Event; Only C2

2019/07/15 06:00:05 81 12 164 198 486 10.2^*1 ---- ---- 84 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2

2019/07/16 02:24:05 89 14 183 173 0 -2.4^*1 ---- ---- 83 C2 C3 PHTX DST Java Movie Poor Event; Only C2

2019/07/16 06:36:05 80 12 114 83 0 -4.8^*1 ---- ---- 83 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2

2019/07/16 17:36:05 141 10 476 705 2302 214.8^*1 ---- ---- 138 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2

2019/07/17 03:36:05 250 21 287 296 324 1.1^*1 1.4e+14 5.8e+28 255 C2 C3 PHTX DST Java Movie Poor Event

2019/07/17 22:12:05 266 39 90 0 0 -8.4^*1 6.0e+13 2.4e+27 269 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2

2019/07/18 10:24:05 268 79 158 376 337 4.8 9.4e+15 1.2e+30 270 C2 C3 PHTX DST Java Movie

2019/07/20 00:48:05 249 8 314 428 989 38.7^*1 ---- ---- 251 C2 C3 PHTX DST Java Movie Poor Event; Only C2

2019/07/20 08:48:05 275 8 269 364 482 8.6^*1 ---- ---- 274 C2 C3 PHTX DST Java Movie Poor Event

2019/07/20 11:48:05 111 12 260 333 1127 51.8^*1 ---- ---- 113 C2 C3 PHTX DST Java Movie Poor Event; Only C2

2019/07/22 00:48:05 27 7 475 693 1888 142.8^*1 ---- ---- 30 C2 C3 PHTX DST Java Movie Poor Event; Only 3 points; Only C2

2019/07/22 08:12:05 265 38 81 97 256 2.6^*1 1.1e+14 3.6e+27 269 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2

2019/07/22 17:48:05 53 6 350 181 0 -147.7^*1 ---- ---- 62 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2

2019/07/23 10:36:05 118 10 227 165 0 -11.0^*1 ---- ---- 117 C2 C3 PHTX DST Java Movie Poor Event

2019/07/23 15:28:49 3 9 817 364 0 -484.5^*1 ---- ---- 3 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2

2019/07/23 18:00:05 121 19 214 225 286 1.6^*1 ---- ---- 120 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2

2019/07/24 03:12:11 27 12 416 492 1347 71.7^*1 ---- ---- 29 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2

2019/07/24 08:12:05 74 23 156 162 196 0.7^*1 1.4e+13 1.7e+27 82 C2 C3 PHTX DST Java Movie Poor Event

2019/07/26 00:30:48 30 11 343 120 0 -143.0^*1 ---- ---- 38 C2 C3 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2

2019/07/26 12:24:06 35 16 327 364 696 16.7^*1 ---- ---- 38 C2 C3 PHTX DST Java Movie Poor Event; Only C2

2019/07/27 14:48:06 267 33 116 127 192 1.1^*1 4.7e+12 3.2e+26 272 C2 C3 PHTX DST Java Movie Very Poor Event

2019/07/27 23:48:05 269 41 142 165 207 1.2^*1 2.0e+13 2.1e+27 271 C2 C3 PHTX DST Java Movie Poor Event

2019/07/29 14:48:05 358 10 305 362 828 25.8^*1 ---- ---- 357 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2

2019/07/29 22:24:05 282 6 456 531 1012 38.4^*1 ---- ---- 278 C2 C3 PHTX DST Java Movie Poor Event

2019/07/29 22:36:05 43 13 503 720 1683 113.3^*1 ---- ---- 49 C2 C3 PHTX DST Java Movie Poor Event; Only C2

2019/07/30 08:36:05 312 13 385 502 1379 76.9^*1 ---- ---- 304 C2 C3 PHTX DST Java Movie Poor Event; Only C2

2019/07/30 09:36:05 275 16 181 285 385 6.0^*1 ---- ---- 273 C2 C3 PHTX DST Java Movie Poor Event

2019/07/30 22:24:05 98 34 162 230 503 10.2^*1 7.4e+13 9.7e+27 94 C2 C3 PHTX DST Java Movie Poor Event

2019/07/31 00:36:05 248 17 176 181 217 0.8^*1 ---- ---- 242 C2 C3 PHTX DST Java Movie Poor Event; Only C2

2019/07/31 09:48:06 273 16 223 304 518 11.6^*1 ---- ---- 273 C2 C3 PHTX DST Java Movie Very 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
2019/07/01	19:12:05	115	44	382	483	493	7.2^*1	4.8e+12	3.5e+27	105	C2 C3 PHTX DST Java Movie
2019/07/02	01:48:06	120	22	196	262	580	14.6^*1	1.6e+12	3.1e+26	114	C2 C3 PHTX DST Java Movie	Poor Event
2019/07/03	09:12:08	109	9	240	188	0	-34.9^*1	----	----	109	C2 C3 PHTX DST Java Movie	Very Poor Event; Only C2
2019/07/03	10:24:05	272	54	168	170	183	0.2^*1	4.6e+13	6.5e+27	268	C2 C3 PHTX DST Java Movie	Poor Event; Only C2
2019/07/04	05:48:05	241	11	313	393	867	28.9^*1	----	----	246	C2 C3 PHTX DST Java Movie	Very Poor Event; Only C2
2019/07/04	07:12:07	245	11	180	272	645	17.1^*1	----	----	246	C2 C3 PHTX DST Java Movie	Poor Event; Only C2
2019/07/04	08:48:05	198	6	480	975	3226	437.3^*1	----	----	203	C2 C3 PHTX DST Java Movie	Very Poor Event; Only 3 points; Only C2
2019/07/05	00:48:05	85	31	81	101	285	3.2^*1	1.7e+13	5.5e+26	91	C2 C3 PHTX DST Java Movie	Poor Event; Only C2
2019/07/05	03:12:10	41	11	291	187	0	-54.8^*1	----	----	45	C2 C3 PHTX DST Java Movie	Poor Event; Only C2
2019/07/05	12:36:05	242	9	144	135	0	-1.5^*1	----	----	242	C2 C3 PHTX DST Java Movie	Poor Event; Only C2
2019/07/05	16:48:05	334	11	256	109	0	-85.3^*1	----	----	332	C2 C3 PHTX DST Java Movie	Poor Event; Only C2
2019/07/06	21:48:05	88	52	110	144	323	4.0^*1	3.0e+14	1.8e+28	95	C2 C3 PHTX DST Java Movie	Only C2
2019/07/09	03:36:05	92	44	187	165	0	-5.1^*1	7.3e+11	1.3e+26	89	C2 C3 PHTX DST Java Movie	Very Poor Event; Only C2
2019/07/09	14:36:15	250	10	254	386	1046	44.7^*1	----	----	247	C2 C3 PHTX DST Java Movie	Poor Event; Only C2
2019/07/11	16:24:05	88	45	208	395	576	13.7^*1	5.9e+14	1.3e+29	89	C2 C3 PHTX DST Java Movie
2019/07/12	00:12:05	81	20	59	63	84	0.2^*1	1.2e+13	2.0e+26	82	C2 C3 PHTX DST Java Movie	Poor Event
2019/07/12	10:12:06	290	16	129	86	0	-4.4^*1	----	----	286	C2 C3 PHTX DST Java Movie	Very Poor Event; Only C2
2019/07/13	02:36:05	303	53	200	212	287	2.0^*1	8.4e+11	1.7e+26	301	C2 C3 PHTX DST Java Movie	Very Poor Event; Only C2
2019/07/13	22:36:06	84	8	150	135	0	-3.1^*1	----	----	83	C2 C3 PHTX DST Java Movie	Very Poor Event
2019/07/14	02:24:05	77	10	178	159	0	-10.8^*1	----	----	84	C2 C3 PHTX DST Java Movie	Very Poor Event
2019/07/14	02:48:05	251	25	351	424	722	18.5^*1	8.7e+13	5.3e+28	251	C2 C3 PHTX DST Java Movie
2019/07/14	05:36:05	293	12	276	272	226	-1.2^*1	----	----	291	C2 C3 PHTX DST Java Movie	Poor Event
2019/07/14	10:24:05	82	39	151	181	361	5.1^*1	1.4e+13	1.6e+27	87	C2 C3 PHTX DST Java Movie	Poor Event
2019/07/14	13:25:43	81	12	159	156	116	-0.6^*1	----	----	84	C2 C3 PHTX DST Java Movie	Very Poor Event
2019/07/14	16:00:05	80	13	145	178	396	6.3^*1	----	----	84	C2 C3 PHTX DST Java Movie	Poor Event
2019/07/14	18:24:05	247	27	191	153	0	-9.9^*1	8.0e+12	1.5e+27	247	C2 C3 PHTX DST Java Movie	Very Poor Event; Only C2
2019/07/15	05:12:05	99	13	120	87	0	-7.0^*1	----	----	98	C2 C3 PHTX DST Java Movie	Poor Event; Only C2
2019/07/15	06:00:05	81	12	164	198	486	10.2^*1	----	----	84	C2 C3 PHTX DST Java Movie	Very Poor Event; Only C2
2019/07/16	02:24:05	89	14	183	173	0	-2.4^*1	----	----	83	C2 C3 PHTX DST Java Movie	Poor Event; Only C2
2019/07/16	06:36:05	80	12	114	83	0	-4.8^*1	----	----	83	C2 C3 PHTX DST Java Movie	Very Poor Event; Only C2
2019/07/16	17:36:05	141	10	476	705	2302	214.8^*1	----	----	138	C2 C3 PHTX DST Java Movie	Very Poor Event; Only C2
2019/07/17	03:36:05	250	21	287	296	324	1.1^*1	1.4e+14	5.8e+28	255	C2 C3 PHTX DST Java Movie	Poor Event
2019/07/17	22:12:05	266	39	90	0	0	-8.4^*1	6.0e+13	2.4e+27	269	C2 C3 PHTX DST Java Movie	Very Poor Event; Only C2
2019/07/18	10:24:05	268	79	158	376	337	4.8	9.4e+15	1.2e+30	270	C2 C3 PHTX DST Java Movie
2019/07/20	00:48:05	249	8	314	428	989	38.7^*1	----	----	251	C2 C3 PHTX DST Java Movie	Poor Event; Only C2
2019/07/20	08:48:05	275	8	269	364	482	8.6^*1	----	----	274	C2 C3 PHTX DST Java Movie	Poor Event
2019/07/20	11:48:05	111	12	260	333	1127	51.8^*1	----	----	113	C2 C3 PHTX DST Java Movie	Poor Event; Only C2
2019/07/22	00:48:05	27	7	475	693	1888	142.8^*1	----	----	30	C2 C3 PHTX DST Java Movie	Poor Event; Only 3 points; Only C2
2019/07/22	08:12:05	265	38	81	97	256	2.6^*1	1.1e+14	3.6e+27	269	C2 C3 PHTX DST Java Movie	Very Poor Event; Only C2
2019/07/22	17:48:05	53	6	350	181	0	-147.7^*1	----	----	62	C2 C3 PHTX DST Java Movie	Very Poor Event; Only C2
2019/07/23	10:36:05	118	10	227	165	0	-11.0^*1	----	----	117	C2 C3 PHTX DST Java Movie	Poor Event
2019/07/23	15:28:49	3	9	817	364	0	-484.5^*1	----	----	3	C2 C3 PHTX DST Java Movie	Very Poor Event; Only C2
2019/07/23	18:00:05	121	19	214	225	286	1.6^*1	----	----	120	C2 C3 PHTX DST Java Movie	Very Poor Event; Only C2
2019/07/24	03:12:11	27	12	416	492	1347	71.7^*1	----	----	29	C2 C3 PHTX DST Java Movie	Very Poor Event; Only C2
2019/07/24	08:12:05	74	23	156	162	196	0.7^*1	1.4e+13	1.7e+27	82	C2 C3 PHTX DST Java Movie	Poor Event
2019/07/26	00:30:48	30	11	343	120	0	-143.0^*1	----	----	38	C2 C3 PHTX DST Java Movie	Very Poor Event; Only 3 points; Only C2
2019/07/26	12:24:06	35	16	327	364	696	16.7^*1	----	----	38	C2 C3 PHTX DST Java Movie	Poor Event; Only C2
2019/07/27	14:48:06	267	33	116	127	192	1.1^*1	4.7e+12	3.2e+26	272	C2 C3 PHTX DST Java Movie	Very Poor Event
2019/07/27	23:48:05	269	41	142	165	207	1.2^*1	2.0e+13	2.1e+27	271	C2 C3 PHTX DST Java Movie	Poor Event
2019/07/29	14:48:05	358	10	305	362	828	25.8^*1	----	----	357	C2 C3 PHTX DST Java Movie	Very Poor Event; Only C2
2019/07/29	22:24:05	282	6	456	531	1012	38.4^*1	----	----	278	C2 C3 PHTX DST Java Movie	Poor Event
2019/07/29	22:36:05	43	13	503	720	1683	113.3^*1	----	----	49	C2 C3 PHTX DST Java Movie	Poor Event; Only C2
2019/07/30	08:36:05	312	13	385	502	1379	76.9^*1	----	----	304	C2 C3 PHTX DST Java Movie	Poor Event; Only C2
2019/07/30	09:36:05	275	16	181	285	385	6.0^*1	----	----	273	C2 C3 PHTX DST Java Movie	Poor Event
2019/07/30	22:24:05	98	34	162	230	503	10.2^*1	7.4e+13	9.7e+27	94	C2 C3 PHTX DST Java Movie	Poor Event
2019/07/31	00:36:05	248	17	176	181	217	0.8^*1	----	----	242	C2 C3 PHTX DST Java Movie	Poor Event; Only C2
2019/07/31	09:48:06	273	16	223	304	518	11.6^*1	----	----	273	C2 C3 PHTX DST Java Movie	Very 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).