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

2009/07/01 18:54:03 70 78 140 291 276 3.2^*1 5.9e+14 5.8e+28 74 C2 C3 195 PHTX DST Java Movie Poor Event

2009/07/02 00:30:04 70 82 113 244 260 2.9^*1 1.3e+15 8.3e+28 66 C2 C3 195 PHTX DST Java Movie Poor Event

2009/07/03 00:54:03 253 61 178 200 222 1.0^*1 3.0e+14 4.7e+28 253 C2 C3 195 PHTX DST Java Movie Poor Event

2009/07/03 03:54:25 70 20 288 385 464 7.3^*1 6.3e+12 2.6e+27 77 C2 C3 195 PHTX DST Java Movie Very Poor Event

2009/07/03 09:08:28 282 11 264 219 0 -12.7^*1 ---- ---- 292 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2

2009/07/04 03:54:06 333 5 183 253 676 18.2^*1 ---- ---- 332 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2

2009/07/04 04:30:03 66 6 223 283 363 4.5^*1 ---- ---- 76 C2 C3 195 PHTX DST Java Movie Poor Event

2009/07/04 14:30:03 199 10 358 330 0 -24.2^*1 ---- ---- 201 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2

2009/07/05 11:30:03 359 4 264 472 2102 183.5^*1 ---- ---- 360 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2

2009/07/05 14:06:03 277 55 92 181 177 1.4^*1 3.7e+15 1.6e+29 277 C2 C3 195 PHTX DST Java Movie Poor Event

2009/07/07 08:30:03 351 4 363 534 1883 144.1^*1 ---- ---- 355 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2

2009/07/07 12:06:03 288 25 306 322 384 2.7^*1 1.2e+14 5.4e+28 286 C2 C3 195 PHTX DST Java Movie Poor Event

2009/07/07 14:57:59 90 12 178 182 189 0.2^*1 ---- ---- 96 C2 C3 195 PHTX DST Java Movie Poor Event

2009/07/08 01:31:38 92 48 101 184 350 5.0^*1 4.0e+14 2.1e+28 93 C2 C3 195 PHTX DST Java Movie Poor Event

2009/07/08 23:54:03 45 5 285 124 0 -156.6^*1 ---- ---- 49 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2

2009/07/09 06:54:03 177 7 354 448 1122 50.2^*1 ---- ---- 178 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2

2009/07/10 14:30:03 356 5 227 360 1094 50.7^*1 ---- ---- 359 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2

2009/07/10 18:54:03 67 9 312 223 0 -31.5^*1 ---- ---- 73 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2

2009/07/10 23:06:03 64 6 146 77 0 -32.2^*1 ---- ---- 68 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2

2009/07/11 00:30:04 96 6 193 261 272 2.6^*1 ---- ---- 96 C2 C3 195 PHTX DST Java Movie Very Poor Event

2009/07/11 12:30:03 5 7 334 342 462 4.4^*1 ---- ---- 6 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2

2009/07/12 00:54:03 74 34 185 211 383 5.0^*1 1.0e+14 1.7e+28 76 C2 195 PHTX DST Java Movie Poor Event; Only C2

2009/07/16 18:36:00 103 70 151 161 165 0.3^*1 2.0e+15 2.3e+29 100 C2 C3 195 PHTX DST Java Movie

2009/07/17 00:54:03 153 6 256 419 1454 86.9^*1 ---- ---- 148 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2

2009/07/19 18:06:03 56 13 317 357 430 4.4^*1 ---- ---- 65 C2 C3 195 PHTX DST Java Movie

2009/07/20 17:51:11 113 24 370 493 698 20.0^*1 1.2e+17 8.3e+31 105 C2 C3 195 PHTX DST Java Movie

2009/07/21 13:30:16 207 11 662 316 0 -193.4^*1 ---- ---- 213 C2 C3 195 PHTX DST Java Movie Poor Event; Only 3 points; Only C2

2009/07/21 19:08:07 49 9 432 286 0 -109.5^*1 ---- ---- 59 C2 C3 195 PHTX DST Java Movie Poor Event; Only 3 points; Only C2

2009/07/21 23:30:16 355 5 652 687 911 21.6^*1 ---- ---- 355 C2 C3 195 PHTX DST Java Movie Very Poor Event

2009/07/22 03:54:42 274 38 ---- --- --- --- 3.1e+13^*2 1.6e+23^*2 275 C2 C3 195 PHTX DST Java Movie data gap, one point; Very Poor Event; Only 1 point; Only C2

2009/07/22 08:30:16 66 59 ---- --- --- --- 6.3e+13^*2 3.2e+23^*2 63 C2 C3 195 PHTX DST Java Movie one point; Very Poor Event; Only 1 point; Only C2

2009/07/23 05:54:03 87 89 302 297 297 -0.2 1.7e+15 7.8e+29 73 C2 C3 195 PHTX DST Java Movie

2009/07/23 15:38:33 266 39 140 166 207 1.3^*1 5.0e+13 4.9e+27 262 C2 C3 195 PHTX DST Java Movie Poor Event

2009/07/24 03:30:03 78 16 243 336 346 4.1^*1 ---- ---- 81 C2 C3 195 PHTX DST Java Movie

2009/07/25 12:30:03 50 9 249 350 926 36.4^*1 ---- ---- 60 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2

2009/07/26 12:30:04 80 36 458 540 509 4.8 7.0e+14 7.3e+29 84 C2 C3 195 PHTX DST Java Movie

2009/07/26 15:08:01 59 7 384 377 365 -0.8^*1 ---- ---- 66 C2 C3 195 PHTX DST Java Movie

2009/07/26 21:30:08 63 6 379 479 573 10.2^*1 ---- ---- 67 C2 C3 195 PHTX DST Java Movie Poor Event

2009/07/26 21:54:05 0 6 328 213 0 -47.2^*1 ---- ---- 2 C2 C3 195 PHTX DST Java Movie Very Poor Event

2009/07/27 06:30:03 178 7 467 817 2692 308.8^*1 ---- ---- 178 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2

2009/07/27 13:30:03 86 8 243 263 292 1.6^*1 ---- ---- 88 C2 C3 195 PHTX DST Java Movie Poor Event

2009/07/28 11:30:03 39 6 386 350 0 -20.1^*1 ---- ---- 46 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2

2009/07/28 15:54:03 59 12 87 44 0 -9.6^*1 ---- ---- 61 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2

2009/07/28 20:30:03 113 19 268 341 560 11.5^*1 ---- ---- 104 C2 C3 195 PHTX DST Java Movie Poor Event

2009/07/29 03:54:03 262 11 189 225 255 1.9^*1 ---- ---- 253 C2 C3 195 PHTX DST Java Movie Very Poor Event

2009/07/29 11:54:03 262 10 276 257 216 -1.9^*1 ---- ---- 254 C2 C3 195 PHTX DST Java Movie Very Poor Event

2009/07/31 07:54:03 77 83 237 522 439 8.0^*1 2.2e+14 6.2e+28 61 C2 C3 195 PHTX DST Java Movie partly missed in data gap

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
2009/07/01	18:54:03	70	78	140	291	276	3.2^*1	5.9e+14	5.8e+28	74	C2 C3 195 PHTX DST Java Movie	Poor Event
2009/07/02	00:30:04	70	82	113	244	260	2.9^*1	1.3e+15	8.3e+28	66	C2 C3 195 PHTX DST Java Movie	Poor Event
2009/07/03	00:54:03	253	61	178	200	222	1.0^*1	3.0e+14	4.7e+28	253	C2 C3 195 PHTX DST Java Movie	Poor Event
2009/07/03	03:54:25	70	20	288	385	464	7.3^*1	6.3e+12	2.6e+27	77	C2 C3 195 PHTX DST Java Movie	Very Poor Event
2009/07/03	09:08:28	282	11	264	219	0	-12.7^*1	----	----	292	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only C2
2009/07/04	03:54:06	333	5	183	253	676	18.2^*1	----	----	332	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only C2
2009/07/04	04:30:03	66	6	223	283	363	4.5^*1	----	----	76	C2 C3 195 PHTX DST Java Movie	Poor Event
2009/07/04	14:30:03	199	10	358	330	0	-24.2^*1	----	----	201	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only 3 points; Only C2
2009/07/05	11:30:03	359	4	264	472	2102	183.5^*1	----	----	360	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only 3 points; Only C2
2009/07/05	14:06:03	277	55	92	181	177	1.4^*1	3.7e+15	1.6e+29	277	C2 C3 195 PHTX DST Java Movie	Poor Event
2009/07/07	08:30:03	351	4	363	534	1883	144.1^*1	----	----	355	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only 3 points; Only C2
2009/07/07	12:06:03	288	25	306	322	384	2.7^*1	1.2e+14	5.4e+28	286	C2 C3 195 PHTX DST Java Movie	Poor Event
2009/07/07	14:57:59	90	12	178	182	189	0.2^*1	----	----	96	C2 C3 195 PHTX DST Java Movie	Poor Event
2009/07/08	01:31:38	92	48	101	184	350	5.0^*1	4.0e+14	2.1e+28	93	C2 C3 195 PHTX DST Java Movie	Poor Event
2009/07/08	23:54:03	45	5	285	124	0	-156.6^*1	----	----	49	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only 3 points; Only C2
2009/07/09	06:54:03	177	7	354	448	1122	50.2^*1	----	----	178	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only 3 points; Only C2
2009/07/10	14:30:03	356	5	227	360	1094	50.7^*1	----	----	359	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only 3 points; Only C2
2009/07/10	18:54:03	67	9	312	223	0	-31.5^*1	----	----	73	C2 C3 195 PHTX DST Java Movie	Poor Event; Only C2
2009/07/10	23:06:03	64	6	146	77	0	-32.2^*1	----	----	68	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only C2
2009/07/11	00:30:04	96	6	193	261	272	2.6^*1	----	----	96	C2 C3 195 PHTX DST Java Movie	Very Poor Event
2009/07/11	12:30:03	5	7	334	342	462	4.4^*1	----	----	6	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only 3 points; Only C2
2009/07/12	00:54:03	74	34	185	211	383	5.0^*1	1.0e+14	1.7e+28	76	C2 195 PHTX DST Java Movie	Poor Event; Only C2
2009/07/16	18:36:00	103	70	151	161	165	0.3^*1	2.0e+15	2.3e+29	100	C2 C3 195 PHTX DST Java Movie
2009/07/17	00:54:03	153	6	256	419	1454	86.9^*1	----	----	148	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only 3 points; Only C2
2009/07/19	18:06:03	56	13	317	357	430	4.4^*1	----	----	65	C2 C3 195 PHTX DST Java Movie
2009/07/20	17:51:11	113	24	370	493	698	20.0^*1	1.2e+17	8.3e+31	105	C2 C3 195 PHTX DST Java Movie
2009/07/21	13:30:16	207	11	662	316	0	-193.4^*1	----	----	213	C2 C3 195 PHTX DST Java Movie	Poor Event; Only 3 points; Only C2
2009/07/21	19:08:07	49	9	432	286	0	-109.5^*1	----	----	59	C2 C3 195 PHTX DST Java Movie	Poor Event; Only 3 points; Only C2
2009/07/21	23:30:16	355	5	652	687	911	21.6^*1	----	----	355	C2 C3 195 PHTX DST Java Movie	Very Poor Event
2009/07/22	03:54:42	274	38	----	---	---	---	3.1e+13^*2	1.6e+23^*2	275	C2 C3 195 PHTX DST Java Movie	data gap, one point; Very Poor Event; Only 1 point; Only C2
2009/07/22	08:30:16	66	59	----	---	---	---	6.3e+13^*2	3.2e+23^*2	63	C2 C3 195 PHTX DST Java Movie	one point; Very Poor Event; Only 1 point; Only C2
2009/07/23	05:54:03	87	89	302	297	297	-0.2	1.7e+15	7.8e+29	73	C2 C3 195 PHTX DST Java Movie
2009/07/23	15:38:33	266	39	140	166	207	1.3^*1	5.0e+13	4.9e+27	262	C2 C3 195 PHTX DST Java Movie	Poor Event
2009/07/24	03:30:03	78	16	243	336	346	4.1^*1	----	----	81	C2 C3 195 PHTX DST Java Movie
2009/07/25	12:30:03	50	9	249	350	926	36.4^*1	----	----	60	C2 C3 195 PHTX DST Java Movie	Poor Event; Only C2
2009/07/26	12:30:04	80	36	458	540	509	4.8	7.0e+14	7.3e+29	84	C2 C3 195 PHTX DST Java Movie
2009/07/26	15:08:01	59	7	384	377	365	-0.8^*1	----	----	66	C2 C3 195 PHTX DST Java Movie
2009/07/26	21:30:08	63	6	379	479	573	10.2^*1	----	----	67	C2 C3 195 PHTX DST Java Movie	Poor Event
2009/07/26	21:54:05	0	6	328	213	0	-47.2^*1	----	----	2	C2 C3 195 PHTX DST Java Movie	Very Poor Event
2009/07/27	06:30:03	178	7	467	817	2692	308.8^*1	----	----	178	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only 3 points; Only C2
2009/07/27	13:30:03	86	8	243	263	292	1.6^*1	----	----	88	C2 C3 195 PHTX DST Java Movie	Poor Event
2009/07/28	11:30:03	39	6	386	350	0	-20.1^*1	----	----	46	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only C2
2009/07/28	15:54:03	59	12	87	44	0	-9.6^*1	----	----	61	C2 C3 195 PHTX DST Java Movie	Very Poor Event; Only C2
2009/07/28	20:30:03	113	19	268	341	560	11.5^*1	----	----	104	C2 C3 195 PHTX DST Java Movie	Poor Event
2009/07/29	03:54:03	262	11	189	225	255	1.9^*1	----	----	253	C2 C3 195 PHTX DST Java Movie	Very Poor Event
2009/07/29	11:54:03	262	10	276	257	216	-1.9^*1	----	----	254	C2 C3 195 PHTX DST Java Movie	Very Poor Event
2009/07/31	07:54:03	77	83	237	522	439	8.0^*1	2.2e+14	6.2e+28	61	C2 C3 195 PHTX DST Java Movie	partly missed in data gap

*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).