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

2003/07/03 01:30:05 285 101 597 475 0 -31.1 1.3e+15 2.4e+30 305 C2 C3 PHTX DST Java Movie

2003/07/03 18:54:05 257 4 493 429 0 -62.7^*1 ---- ---- 257 C2 C3 PHTX DST Java Movie Poor Event; Only 3 points; Only C2

2003/07/04 15:30:05 81 174 751 699 698 -7.3 2.4e+15^*2 6.8e+30^*2 50 C2 C3 195 PHTX DST Java Movie Partial Halo

2003/07/06 01:54:05 311 38 265 303 547 10.5^*1 1.6e+14 5.5e+28 312 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2

2003/07/10 16:33:07 289 72 877 991 768 31.4 ---- ---- 278 C2 C3 195 PHTX DST Java Movie Only C3

2003/07/11 08:06:05 260 4 506 498 445 -2.7^*1 ---- ---- 264 C2 C3 195 PHTX DST Java Movie

2003/07/11 08:06:05 189 85 388 497 809 24.0^*1 1.0e+15 7.8e+29 172 C2 C3 195 PHTX DST Java Movie Poor Event

2003/07/11 12:54:06 81 14 429 431 448 0.8^*1 ---- ---- 80 C2 C3 195 PHTX DST Java Movie

2003/07/11 13:54:05 254 9 359 323 0 -8.6^*1 ---- ---- 253 C2 C3 195 PHTX DST Java Movie Poor Event

2003/07/12 00:30:05 256 15 397 450 516 6.1 ---- ---- 255 C2 C3 195 PHTX DST Java Movie

2003/07/12 00:30:05 196 118 331 345 345 0.7 5.0e+15 2.8e+30 185 C2 C3 195 PHTX DST Java Movie

2003/07/12 19:31:41 65 58 526 571 626 6.5 1.8e+15 2.5e+30 64 C2 C3 195 PHTX DST Java Movie

2003/07/13 01:54:05 8 58 711 713 715 0.4 4.0e+14 1.0e+30 14 C2 C3 195 PHTX DST Java Movie

2003/07/13 22:30:05 72 18 436 --- --- --- ---- ---- 72 C2 C3 195 PHTX DST Java Movie Poor Event; Only 2 points

2003/07/14 09:30:05 93 52 303 365 547 10.7^*1 6.5e+14 3.0e+29 80 C2 C3 195 PHTX DST Java Movie Very Poor Event

2003/07/14 20:07:26 307 27 463 501 653 10.3^*1 2.4e+14^*2 2.6e+29^*2 309 C2 C3 195 PHTX DST Java Movie

2003/07/14 23:30:05 113 31 426 566 772 20.8 4.6e+14 4.2e+29 103 C2 C3 195 PHTX DST Java Movie

2003/07/15 02:54:05 70 43 239 213 0 -14.3^*1 7.0e+13^*2 2.0e+28^*2 64 C2 C3 195 PHTX DST Java Movie Only C2

2003/07/15 22:30:05 320 59 677 772 858 16.2^*1 9.0e+14 2.1e+30 321 C2 C3 195 PHTX DST Java Movie

2003/07/16 01:31:42 95 23 389 334 0 -14.4^*1 6.3e+13^*2 4.8e+28^*2 94 C2 C3 195 PHTX DST Java Movie

2003/07/16 14:06:05 338 37 330 179 0 -38.2^*1 1.6e+14 8.6e+28 341 C2 C3 195 PHTX DST Java Movie

2003/07/16 22:06:05 346 21 521 565 910 25.1^*1 2.5e+13^*2 3.4e+28^*2 351 C2 C3 195 PHTX DST Java Movie Only 3 points; Only C2

2003/07/17 05:30:05 77 16 982 667 0 -151.0^*1 ---- ---- 71 C2 C3 195 PHTX DST Java Movie Poor Event

2003/07/17 08:54:05 141 >298 531 632 821 20.1^*1 6.7e+14^*2 9.5e+29^*2 277 C2 C3 195 PHTX DST Java Movie Bright jet with very faint halo; Uncertain Width; Partial Halo

2003/07/17 18:30:05 279 >117 241 254 272 0.9^*1 2.0e+15 5.7e+29 237 C2 C3 195 PHTX DST Java Movie Uncertain Width

2003/07/18 06:06:05 50 35 459 400 223 -9.2^*1 2.4e+14 2.5e+29 56 C2 C3 195 PHTX DST Java Movie

2003/07/18 15:30:05 229 71 214 206 189 -0.6^*1 2.4e+14 5.6e+28 227 C2 C3 195 PHTX DST Java Movie

2003/07/18 15:30:05 345 79 416 465 654 12.2^*1 6.0e+14 5.2e+29 346 C2 C3 195 PHTX DST Java Movie

2003/07/19 14:30:18 76 16 696 568 0 -88.9^*1 ---- ---- 74 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points

2003/07/19 15:18:19 33 12 293 359 438 6.9^*1 ---- ---- 32 C2 C3 195 PHTX DST Java Movie Newly inserted on 2009/05/19; not clear in C2; Only C3

2003/07/20 00:30:17 286 13 355 427 951 34.9^*1 ---- ---- 281 C2 C3 195 PHTX DST Java Movie Poor Event; Only 3 points

2003/07/20 05:30:17 334 100 320 298 250 -2.3^*1 6.2e+14 3.2e+29 324 C2 C3 195 PHTX DST Java Movie

2003/07/20 13:31:58 286 8 696 931 1659 110.2^*1 ---- ---- 290 C2 C3 195 PHTX DST Java Movie

2003/07/20 23:06:55 288 11 656 606 494 -11.0 ---- ---- 288 C2 C3 195 PHTX DST Java Movie

2003/07/21 00:06:05 59 33 356 268 0 -21.9^*1 1.6e+14 1.0e+29 59 C2 C3 195 PHTX DST Java Movie

2003/07/21 10:30:05 343 52 294 300 314 0.7^*1 2.3e+14 1.0e+29 352 C2 C3 195 PHTX DST Java Movie

2003/07/21 22:30:05 269 37 723 705 644 -5.8 4.6e+14 1.2e+30 271 C2 C3 195 PHTX DST Java Movie

2003/07/22 02:54:06 238 10 354 413 934 33.0^*1 ---- ---- 236 C2 C3 195 PHTX DST Java Movie Only C2

2003/07/22 02:54:06 318 44 210 247 523 10.0 1.9e+14 4.3e+28 308 C2 C3 195 PHTX DST Java Movie Only C2

2003/07/22 22:30:05 188 76 292 425 546 11.8 9.4e+14 4.0e+29 177 C2 C3 195 PHTX DST Java Movie

2003/07/23 05:30:05 302 9 543 0 0 -408.9^*1 ---- ---- 299 C2 C3 195 PHTX DST Java Movie Very Poor Event

2003/07/23 12:30:05 213 123 329 419 414 6.7^*1 8.5e+15^*2 4.6e+30^*2 203 C2 C3 195 PHTX DST Java Movie Only C3; Partial Halo

2003/07/24 03:06:05 282 39 195 219 501 9.0^*1 3.6e+14 6.7e+28 289 C2 C3 195 PHTX DST Java Movie Only C2

2003/07/24 21:30:10 39 50 265 502 518 11.7^*1 3.1e+15 1.1e+30 41 C2 C3 195 PHTX DST Java Movie Poor Event

2003/07/25 18:30:06 286 21 302 326 629 13.4^*1 1.4e+14^*2 6.6e+28^*2 287 C2 C3 195 PHTX DST Java Movie Only 3 points; Only C2

2003/07/25 21:30:05 102 55 100 0 0 -29.7^*1 2.9e+14 1.4e+28 104 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2

2003/07/26 13:31:39 94 59 170 181 331 3.5 5.0e+14 7.2e+28 92 C2 C3 195 PHTX DST Java Movie Only C2

2003/07/26 19:31:40 94 51 195 146 0 -19.1 4.6e+14 8.8e+28 93 C2 C3 195 PHTX DST Java Movie Only C2

2003/07/28 08:54:05 272 65 218 173 0 -24.9^*1 7.1e+15^*2 1.7e+30^*2 288 C2 C3 195 PHTX DST Java Movie Only C2

2003/07/28 15:54:05 58 78 141 138 0 -1.0 2.6e+14 2.6e+28 88 C2 C3 195 PHTX DST Java Movie Only C2

2003/07/29 16:30:05 130 63 275 496 412 8.0^*1 8.1e+15 3.1e+30 127 C2 C3 195 PHTX DST Java Movie

2003/07/30 05:06:05 55 9 589 792 1163 58.7^*1 ---- ---- 54 C2 C3 195 PHTX DST Java Movie Poor Event; Only C3

2003/07/30 22:30:17 62 12 539 733 890 28.6^*1 ---- ---- 61 C2 C3 195 PHTX DST Java Movie Poor Event

2003/07/31 01:31:51 61 18 673 549 297 -24.6 ---- ---- 52 C2 C3 195 PHTX DST Java Movie Newly inserted on 2006/01/17

2003/07/31 04:30:18 125 28 420 562 662 15.0^*1 ---- ---- 123 C2 C3 195 PHTX DST Java Movie Newly inserted on 2006/01/17

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
2003/07/03	01:30:05	285	101	597	475	0	-31.1	1.3e+15	2.4e+30	305	C2 C3 PHTX DST Java Movie
2003/07/03	18:54:05	257	4	493	429	0	-62.7^*1	----	----	257	C2 C3 PHTX DST Java Movie	Poor Event; Only 3 points; Only C2
2003/07/04	15:30:05	81	174	751	699	698	-7.3	2.4e+15^*2	6.8e+30^*2	50	C2 C3 195 PHTX DST Java Movie	Partial Halo
2003/07/06	01:54:05	311	38	265	303	547	10.5^*1	1.6e+14	5.5e+28	312	C2 C3 195 PHTX DST Java Movie	Poor Event; Only C2
2003/07/10	16:33:07	289	72	877	991	768	31.4	----	----	278	C2 C3 195 PHTX DST Java Movie	Only C3
2003/07/11	08:06:05	260	4	506	498	445	-2.7^*1	----	----	264	C2 C3 195 PHTX DST Java Movie
2003/07/11	08:06:05	189	85	388	497	809	24.0^*1	1.0e+15	7.8e+29	172	C2 C3 195 PHTX DST Java Movie	Poor Event
2003/07/11	12:54:06	81	14	429	431	448	0.8^*1	----	----	80	C2 C3 195 PHTX DST Java Movie
2003/07/11	13:54:05	254	9	359	323	0	-8.6^*1	----	----	253	C2 C3 195 PHTX DST Java Movie	Poor Event
2003/07/12	00:30:05	256	15	397	450	516	6.1	----	----	255	C2 C3 195 PHTX DST Java Movie
2003/07/12	00:30:05	196	118	331	345	345	0.7	5.0e+15	2.8e+30	185	C2 C3 195 PHTX DST Java Movie
2003/07/12	19:31:41	65	58	526	571	626	6.5	1.8e+15	2.5e+30	64	C2 C3 195 PHTX DST Java Movie
2003/07/13	01:54:05	8	58	711	713	715	0.4	4.0e+14	1.0e+30	14	C2 C3 195 PHTX DST Java Movie
2003/07/13	22:30:05	72	18	436	---	---	---	----	----	72	C2 C3 195 PHTX DST Java Movie	Poor Event; Only 2 points
2003/07/14	09:30:05	93	52	303	365	547	10.7^*1	6.5e+14	3.0e+29	80	C2 C3 195 PHTX DST Java Movie	Very Poor Event
2003/07/14	20:07:26	307	27	463	501	653	10.3^*1	2.4e+14^*2	2.6e+29^*2	309	C2 C3 195 PHTX DST Java Movie
2003/07/14	23:30:05	113	31	426	566	772	20.8	4.6e+14	4.2e+29	103	C2 C3 195 PHTX DST Java Movie
2003/07/15	02:54:05	70	43	239	213	0	-14.3^*1	7.0e+13^*2	2.0e+28^*2	64	C2 C3 195 PHTX DST Java Movie	Only C2
2003/07/15	22:30:05	320	59	677	772	858	16.2^*1	9.0e+14	2.1e+30	321	C2 C3 195 PHTX DST Java Movie
2003/07/16	01:31:42	95	23	389	334	0	-14.4^*1	6.3e+13^*2	4.8e+28^*2	94	C2 C3 195 PHTX DST Java Movie
2003/07/16	14:06:05	338	37	330	179	0	-38.2^*1	1.6e+14	8.6e+28	341	C2 C3 195 PHTX DST Java Movie
2003/07/16	22:06:05	346	21	521	565	910	25.1^*1	2.5e+13^*2	3.4e+28^*2	351	C2 C3 195 PHTX DST Java Movie	Only 3 points; Only C2
2003/07/17	05:30:05	77	16	982	667	0	-151.0^*1	----	----	71	C2 C3 195 PHTX DST Java Movie	Poor Event
2003/07/17	08:54:05	141	>298	531	632	821	20.1^*1	6.7e+14^*2	9.5e+29^*2	277	C2 C3 195 PHTX DST Java Movie	Bright jet with very faint halo; Uncertain Width; Partial Halo
2003/07/17	18:30:05	279	>117	241	254	272	0.9^*1	2.0e+15	5.7e+29	237	C2 C3 195 PHTX DST Java Movie	Uncertain Width
2003/07/18	06:06:05	50	35	459	400	223	-9.2^*1	2.4e+14	2.5e+29	56	C2 C3 195 PHTX DST Java Movie
2003/07/18	15:30:05	229	71	214	206	189	-0.6^*1	2.4e+14	5.6e+28	227	C2 C3 195 PHTX DST Java Movie
2003/07/18	15:30:05	345	79	416	465	654	12.2^*1	6.0e+14	5.2e+29	346	C2 C3 195 PHTX DST Java Movie
2003/07/19	14:30:18	76	16	696	568	0	-88.9^*1	----	----	74	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only 3 points
2003/07/19	15:18:19	33	12	293	359	438	6.9^*1	----	----	32	C2 C3 195 PHTX DST Java Movie	Newly inserted on 2009/05/19; not clear in C2; Only C3
2003/07/20	00:30:17	286	13	355	427	951	34.9^*1	----	----	281	C2 C3 195 PHTX DST Java Movie	Poor Event; Only 3 points
2003/07/20	05:30:17	334	100	320	298	250	-2.3^*1	6.2e+14	3.2e+29	324	C2 C3 195 PHTX DST Java Movie
2003/07/20	13:31:58	286	8	696	931	1659	110.2^*1	----	----	290	C2 C3 195 PHTX DST Java Movie
2003/07/20	23:06:55	288	11	656	606	494	-11.0	----	----	288	C2 C3 195 PHTX DST Java Movie
2003/07/21	00:06:05	59	33	356	268	0	-21.9^*1	1.6e+14	1.0e+29	59	C2 C3 195 PHTX DST Java Movie
2003/07/21	10:30:05	343	52	294	300	314	0.7^*1	2.3e+14	1.0e+29	352	C2 C3 195 PHTX DST Java Movie
2003/07/21	22:30:05	269	37	723	705	644	-5.8	4.6e+14	1.2e+30	271	C2 C3 195 PHTX DST Java Movie
2003/07/22	02:54:06	238	10	354	413	934	33.0^*1	----	----	236	C2 C3 195 PHTX DST Java Movie	Only C2
2003/07/22	02:54:06	318	44	210	247	523	10.0	1.9e+14	4.3e+28	308	C2 C3 195 PHTX DST Java Movie	Only C2
2003/07/22	22:30:05	188	76	292	425	546	11.8	9.4e+14	4.0e+29	177	C2 C3 195 PHTX DST Java Movie
2003/07/23	05:30:05	302	9	543	0	0	-408.9^*1	----	----	299	C2 C3 195 PHTX DST Java Movie	Very Poor Event
2003/07/23	12:30:05	213	123	329	419	414	6.7^*1	8.5e+15^*2	4.6e+30^*2	203	C2 C3 195 PHTX DST Java Movie	Only C3; Partial Halo
2003/07/24	03:06:05	282	39	195	219	501	9.0^*1	3.6e+14	6.7e+28	289	C2 C3 195 PHTX DST Java Movie	Only C2
2003/07/24	21:30:10	39	50	265	502	518	11.7^*1	3.1e+15	1.1e+30	41	C2 C3 195 PHTX DST Java Movie	Poor Event
2003/07/25	18:30:06	286	21	302	326	629	13.4^*1	1.4e+14^*2	6.6e+28^*2	287	C2 C3 195 PHTX DST Java Movie	Only 3 points; Only C2
2003/07/25	21:30:05	102	55	100	0	0	-29.7^*1	2.9e+14	1.4e+28	104	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only C2
2003/07/26	13:31:39	94	59	170	181	331	3.5	5.0e+14	7.2e+28	92	C2 C3 195 PHTX DST Java Movie	Only C2
2003/07/26	19:31:40	94	51	195	146	0	-19.1	4.6e+14	8.8e+28	93	C2 C3 195 PHTX DST Java Movie	Only C2
2003/07/28	08:54:05	272	65	218	173	0	-24.9^*1	7.1e+15^*2	1.7e+30^*2	288	C2 C3 195 PHTX DST Java Movie	Only C2
2003/07/28	15:54:05	58	78	141	138	0	-1.0	2.6e+14	2.6e+28	88	C2 C3 195 PHTX DST Java Movie	Only C2
2003/07/29	16:30:05	130	63	275	496	412	8.0^*1	8.1e+15	3.1e+30	127	C2 C3 195 PHTX DST Java Movie
2003/07/30	05:06:05	55	9	589	792	1163	58.7^*1	----	----	54	C2 C3 195 PHTX DST Java Movie	Poor Event; Only C3
2003/07/30	22:30:17	62	12	539	733	890	28.6^*1	----	----	61	C2 C3 195 PHTX DST Java Movie	Poor Event
2003/07/31	01:31:51	61	18	673	549	297	-24.6	----	----	52	C2 C3 195 PHTX DST Java Movie	Newly inserted on 2006/01/17
2003/07/31	04:30:18	125	28	420	562	662	15.0^*1	----	----	123	C2 C3 195 PHTX DST Java Movie	Newly inserted on 2006/01/17

*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).