• 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
    1998/06/01 11:27:05 263 38 467 579 1238 60.5*1 2.0e+14*2 2.2e+29*2 269 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only 3 points; Only C2
    1998/06/01 15:00:26 92 11 435 396 179 -8.1*1 ---- ---- 88 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1998/06/01 17:27:07 255 8 238 425 1723 125.6*1 ---- ---- 262 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only 3 points; Only C2
    1998/06/02 02:04:10 254 51 210 265 562 12.4*1 1.2e+14 2.6e+28 246 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only C2
    1998/06/02 02:59:51 118 95 291 333 333 2.0 2.4e+15 1.0e+30 117 C2 C3 195 SXT PHTX DST Java Movie
    1998/06/02 08:08:36 245 59 751 1278 1064 45.2 9.6e+15 2.7e+31 239 C2 C3 195 SXT PHTX DST Java Movie
    1998/06/02 21:06:24 50 61 782 986 868 18.3 2.1e+15 6.5e+30 64 C2 C3 195 SXT PHTX DST Java Movie
    1998/06/03 09:58:55 68 25 252 344 877 31.1*1 ---- ---- 66 C2 C3 195 SXT PHTX DST Java Movie
    1998/06/03 12:02:22 90 147 818 763 791 -6.7 5.5e+15*2 1.8e+31*2 85 C2 C3 195 SXT PHTX DST Java Movie UVCS Partial Halo
    1998/06/03 13:55:05 253 21 370 445 484 6.2 ---- ---- 251 C2 C3 195 SXT PHTX DST Java Movie
    1998/06/03 18:27:05 251 10 362 611 708 21.6 ---- ---- 251 C2 C3 195 SXT PHTX DST Java Movie
    1998/06/03 22:02:09 245 7 232 278 406 5.5 ---- ---- 249 C2 C3 195 SXT PHTX DST Java Movie
    1998/06/03 23:28:13 244 8 318 370 526 8.7*1 ---- ---- 250 C2 C3 195 SXT PHTX DST Java Movie
    1998/06/03 23:28:13 267 11 409 345 0 -10.7 ---- ---- 267 C2 C3 195 SXT PHTX DST Java Movie
    1998/06/03 23:28:13 265 16 586 662 755 13.2 ---- ---- 268 C2 C3 195 SXT PHTX DST Java Movie
    1998/06/04 02:04:45 Halo (OA) 360 1802 1783 1781 -6.5*1 5.3e+15*2 8.6e+31*2 314 C2 C3 195 SXT PHTX DST Java Movie Only 3 points
    1998/06/04 06:31:11 45 34 805 959 865 13.7 1.4e+15 4.5e+30 55 C2 C3 195 SXT PHTX DST Java Movie UVCS
    1998/06/04 09:36:49 70 42 355 334 329 -1.4 5.8e+14 3.7e+29 61 C2 C3 195 SXT PHTX DST Java Movie
    1998/06/04 21:00:57 262 57 404 437 432 1.9 1.2e+15 9.6e+29 256 C2 C3 195 SXT PHTX DST Java Movie
    1998/06/04 21:27:05 98 115 643 558 599 -7.2 3.8e+15 7.8e+30 95 C2 C3 195 SXT PHTX DST Java Movie
    1998/06/04 22:28:15 67 41 384 373 380 -0.5 1.4e+15 1.0e+30 62 C2 C3 195 SXT PHTX DST Java Movie
    1998/06/05 01:30:29 217 57 478 494 489 1.1 ---- ---- 212 C2 C3 195 SXT PHTX DST Java Movie
    1998/06/05 07:02:43 205 132 1017 1200 1144 28.3 ---- ---- 221 C2 C3 195 SXT PHTX DST Java Movie Partial Halo
    1998/06/05 10:28:42 269 74 342 330 329 -0.7*1 ---- ---- 270 C2 C3 195 SXT PHTX DST Java Movie
    1998/06/05 12:01:53 Halo (OA) 360 320 425 367 3.5 ---- ---- 222 C2 C3 195 SXT PHTX DST Java Movie
    1998/06/05 13:31:08 99 41 117 168 199 1.4*1 ---- ---- 97 C2 C3 195 SXT PHTX DST Java Movie
    1998/06/06 08:27:14 273 34 479 381 41 -13.8 2.8e+14 3.3e+29 269 C2 C3 195 SXT PHTX DST Java Movie
    1998/06/06 12:27:05 58 77 248 191 0 -16.3*1 3.9e+14*2 1.2e+29*2 50 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only C2
    1998/06/06 14:00:59 118 47 288 412 384 5.3*1 3.7e+14 1.5e+29 108 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1998/06/06 16:27:05 56 75 92 161 213 1.9*1 ---- ---- 67 C2 C3 195 SXT PHTX DST Java Movie Not LE
    1998/06/07 01:30:36 226 7 315 393 1049 44.0*1 ---- ---- 229 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only 3 points; Only C2
    1998/06/07 09:32:08 Halo (BA) 360 749 560 661 -19.6*1 5.5e+15*2 1.5e+31*2 113 C2 C3 195 SXT PHTX DST Java Movie
    1998/06/07 19:27:05 301 47 337 283 0 -7.4*1 5.9e+14 3.4e+29 294 C2 C3 195 SXT PHTX DST Java Movie
    1998/06/07 23:56:59 250 20 412 424 433 1.2*1 1.3e+14 1.1e+29 262 C2 C3 195 SXT PHTX DST Java Movie
    1998/06/08 08:01:01 114 53 126 171 502 10.5*1 1.2e+14 9.3e+27 120 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only C2
    1998/06/08 10:27:05 110 63 275 303 379 3.7*1 7.6e+14 2.9e+29 118 C2 C3 195 SXT PHTX DST Java Movie
    1998/06/08 14:55:20 59 30 463 570 576 8.6 ---- ---- 68 C2 C3 195 SXT PHTX DST Java Movie
    1998/06/08 16:27:05 177 240 433 377 150 -9.5 ---- ---- 154 C2 C3 195 SXT PHTX DST Java Movie Partial Halo
    1998/06/09 05:55:35 253 118 265 304 286 1.2 7.8e+15 2.8e+30 240 C2 C3 195 SXT PHTX DST Java Movie
    1998/06/09 08:27:05 87 87 189 180 140 -0.8*1 2.3e+14 4.2e+28 90 C2 C3 195 SXT PHTX DST Java Movie UVCS Poor Event
    1998/06/09 09:27:05 201 130 124 164 271 2.7*1 1.7e+15*2 1.3e+29*2 219 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Partial Halo
    1998/06/09 12:27:05 98 19 209 0 0 -37.2*1 ---- ---- 104 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only C2
    1998/06/09 15:06:06 277 84 252 508 419 7.6 4.8e+15 1.5e+30 291 C2 C3 195 SXT PHTX DST Java Movie
    1998/06/09 16:06:06 107 18 596 208 0 -53.5*1 ---- ---- 103 C2 C3 195 SXT PHTX DST Java Movie
    1998/06/09 20:06:05 229 67 77 98 267 2.8*1 ---- ---- 222 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only C2
    1998/06/10 03:55:22 109 144 562 534 537 -2.5 5.2e+14*2 8.2e+29*2 98 C2 C3 195 SXT PHTX DST Java Movie Partial Halo
    1998/06/10 04:26:05 233 4 438 --- --- --- ---- ---- 236 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only 2 points
    1998/06/10 08:27:05 152 21 378 397 546 7.1*1 ---- ---- 142 C2 C3 195 SXT PHTX DST Java Movie Only C2
    1998/06/10 11:27:05 241 30 444 560 581 9.3 1.4e+14 1.4e+29 243 C2 C3 195 SXT PHTX DST Java Movie
    1998/06/10 16:06:07 297 60 458 526 523 5.2 1.9e+15 2.0e+30 302 C2 C3 195 SXT PHTX DST Java Movie
    1998/06/10 22:06:05 233 6 493 --- --- --- ---- ---- 240 C2 C3 195 SXT PHTX DST Java Movie Only 2 points
    1998/06/11 00:05:06 79 58 500 546 521 2.8 3.6e+15 4.5e+30 76 C2 C3 195 SXT PHTX DST Java Movie
    1998/06/11 08:27:05 261 15 172 178 286 2.2*1 ---- ---- 265 C2 C3 195 SXT PHTX DST Java Movie Only C2
    1998/06/11 10:28:38 123 177 1223 967 1145 -35.7 8.7e+15*2 6.5e+31*2 97 C2 C3 195 SXT PHTX DST Java Movie UVCS Partial Halo
    1998/06/11 20:06:05 229 9 392 443 660 13.5*1 ---- ---- 233 C2 C3 195 SXT PHTX DST Java Movie Only 3 points
    1998/06/12 01:55:23 107 7 823 --- --- --- ---- ---- 106 C2 C3 195 SXT PHTX DST Java Movie Only 2 points; Only C2
    1998/06/12 03:55:22 89 43 419 733 635 19.0 1.6e+15 1.4e+30 82 C2 C3 195 SXT PHTX DST Java Movie
    1998/06/12 05:12:11 231 22 584 622 666 6.0*1 1.3e+14 2.2e+29 237 C2 C3 195 SXT PHTX DST Java Movie
    1998/06/12 11:55:22 294 59 173 208 267 2.3*1 7.0e+14 1.1e+29 291 C2 C3 195 SXT PHTX DST Java Movie
    1998/06/12 20:06:05 313 29 579 724 686 14.4 1.3e+15 2.1e+30 305 C2 C3 195 SXT PHTX DST Java Movie
    1998/06/12 22:06:05 71 99 674 684 678 0.9 2.9e+15 6.6e+30 102 C2 C3 195 SXT PHTX DST Java Movie UVCS
    1998/06/13 01:55:19 99 30 648 713 758 9.7*1 ---- ---- 98 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1998/06/13 02:27:07 270 109 462 678 594 12.0 1.2e+16 1.3e+31 256 C2 C3 195 SXT PHTX DST Java Movie UVCS
    1998/06/13 05:26:08 67 100 463 518 493 3.7 9.8e+14 1.1e+30 82 C2 C3 195 SXT PHTX DST Java Movie
    1998/06/13 08:55:05 92 34 218 227 268 1.2*1 ---- ---- 87 C2 C3 195 SXT PHTX DST Java Movie
    1998/06/13 12:55:19 87 37 372 191 0 -79.4*1 ---- ---- 87 C2 C3 195 SXT PHTX DST Java Movie
    1998/06/13 13:27:05 294 23 260 329 603 14.1 ---- ---- 297 C2 C3 195 SXT PHTX DST Java Movie
    1998/06/13 17:06:05 188 63 179 193 297 2.6*1 ---- ---- 188 C2 C3 195 SXT PHTX DST Java Movie Only 3 points
    1998/06/13 18:06:05 80 23 358 358 358 -0.0 ---- ---- 75 C2 C3 195 SXT PHTX DST Java Movie
    1998/06/13 20:06:05 230 27 645 436 624 -14.5 5.1e+14 1.1e+30 246 C2 C3 195 SXT PHTX DST Java Movie
    1998/06/14 01:55:21 80 33 261 302 559 10.8*1 9.8e+13*2 3.3e+28*2 83 C2 C3 195 SXT PHTX DST Java Movie Only C2
    1998/06/14 05:55:36 235 36 94 76 0 -3.8*1 2.5e+14 1.1e+28 223 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only C2
    1998/06/14 09:27:05 263 32 85 68 0 -3.9*1 1.8e+14 6.7e+27 269 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only C2
    1998/06/14 10:28:39 204 72 130 155 332 4.3*1 3.8e+14 3.3e+28 209 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only C2
    1998/06/15 02:27:06 218 53 163 246 326 4.1*1 8.2e+14 1.1e+29 215 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1998/06/15 05:27:09 94 44 420 424 424 0.3*1 1.4e+15 1.3e+30 93 C2 C3 195 SXT PHTX DST Java Movie
    1998/06/15 06:55:20 291 93 535 543 540 0.6 8.2e+15 1.2e+31 285 C2 C3 195 SXT PHTX DST Java Movie
    1998/06/15 14:55:19 195 80 285 386 471 7.7 2.9e+15 1.2e+30 195 C2 C3 195 SXT PHTX DST Java Movie
    1998/06/15 17:27:25 106 69 535 742 635 11.9 2.6e+15 3.8e+30 113 C2 C3 195 SXT PHTX DST Java Movie
    1998/06/16 05:27:07 252 136 430 609 524 9.3 5.3e+15*2 4.9e+30*2 222 C2 C3 195 SXT PHTX DST Java Movie Partial Halo
    1998/06/16 05:55:20 299 17 662 434 534 -20.5 ---- ---- 298 C2 C3 195 SXT PHTX DST Java Movie
    1998/06/16 18:27:05 341 281 1484 1020 1425 -74.7 6.4e+15*2 7.0e+31*2 278 C2 C3 195 SXT PHTX DST Java Movie UVCS Partial Halo
    1998/06/16 20:31:44 224 73 349 716 566 13.8 3.5e+15 2.1e+30 220 C2 C3 195 SXT PHTX DST Java Movie UVCS
    1998/06/17 03:57:11 84 87 296 288 271 -0.8 1.5e+15 6.7e+29 79 C2 C3 195 SXT PHTX DST Java Movie
    1998/06/17 06:55:18 298 23 632 634 633 0.1 1.1e+15 2.2e+30 303 C2 C3 195 SXT PHTX DST Java Movie
    1998/06/17 11:27:05 249 69 610 801 746 15.7 ---- ---- 224 C2 C3 195 SXT PHTX DST Java Movie
    1998/06/17 17:27:05 96 17 527 666 968 33.6*1 ---- ---- 92 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1998/06/18 01:27:05 221 64 773 825 800 5.3 2.8e+15 8.3e+30 259 C2 C3 195 SXT PHTX DST Java Movie UVCS
    1998/06/18 04:24:38 94 26 156 --- --- --- ---- ---- 102 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only 2 points; Only C2
    1998/06/18 07:55:23 302 37 313 263 240 -3.0*1 2.6e+14 1.3e+29 307 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1998/06/18 14:53:05 27 55 172 232 280 2.9*1 ---- ---- 27 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1998/06/19 07:20:20 128 105 373 430 478 5.3 1.6e+15 1.1e+30 113 C2 C3 SXT PHTX DST Java Movie
    1998/06/19 11:38:58 194 40 489 397 0 -24.2*1 1.5e+14 1.7e+29 197 C2 C3 SXT PHTX DST Java Movie Poor Event
    1998/06/19 14:55:09 357 145 209 223 412 5.7*1 1.6e+14*2 3.4e+28*2 349 C2 C3 SXT PHTX DST Java Movie Poor Event; Only C2; Partial Halo
    1998/06/19 19:39:41 0 83 154 120 0 -4.4 ---- ---- 349 C2 C3 SXT PHTX DST Java Movie
    1998/06/20 07:57:43 292 53 909 899 905 -0.9 5.0e+15 2.1e+31 299 C2 C3 SXT PHTX DST Java Movie
    1998/06/20 15:37:02 111 44 323 292 0 -26.5*1 ---- ---- 113 C2 C3 SXT PHTX DST Java Movie Only 3 points; Only C2
    1998/06/20 15:37:02 285 61 222 255 407 5.4*1 8.6e+14 2.1e+29 304 C2 C3 SXT PHTX DST Java Movie Poor Event
    1998/06/20 18:20:37 Halo (OA) 360 964 861 921 -13.3*1 4.3e+15*2 2.0e+31*2 118 C2 C3 SXT PHTX DST Java Movie UVCS
    1998/06/21 05:35:10 289 78 148 185 292 3.2*1 ---- ---- 286 C2 C3 SXT PHTX DST Java Movie Speed and Width were modified on 2011/10/11.; Poor Event
    1998/06/21 07:20:26 257 158 222 304 323 3.4 ---- ---- 254 C2 C3 SXT PHTX DST Java Movie Newly inserted on 2011/10/11; Partial Halo
    1998/06/21 09:35:05 116 46 627 562 415 -12.8*1 3.1e+14 6.0e+29 124 C2 C3 SXT PHTX DST Java Movie Poor Event
    1998/06/21 11:57:42 130 9 508 184 0 -101.6*1 ---- ---- 125 C2 C3 SXT PHTX DST Java Movie Poor Event; Only 3 points
    1998/06/21 18:15:23 292 57 42 59 185 1.4*1 ---- ---- 293 C2 C3 SXT PHTX DST Java Movie Not LE; Poor Event; Only C2
    1998/06/21 23:16:14 48 46 286 324 561 10.4*1 3.0e+14 1.2e+29 44 C2 C3 SXT PHTX DST Java Movie Poor Event; Only C2
    1998/06/22 00:56:02 308 45 551 797 683 17.2 ---- ---- 314 C2 C3 195 SXT PHTX DST Java Movie
    1998/06/22 05:01:29 265 59 206 177 0 -6.7*1 4.3e+14*2 9.2e+28*2 254 C2 C3 195 SXT PHTX DST Java Movie UVCS Poor Event; Only 3 points; Only C2
    1998/06/22 07:34:39 191 119 278 412 427 6.7 4.2e+15 1.6e+30 199 C2 C3 195 SXT PHTX DST Java Movie
    1998/06/22 08:06:21 117 17 379 308 0 -15.8*1 ---- ---- 114 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1998/06/22 10:48:19 121 8 525 378 0 -66.8 ---- ---- 119 C2 C3 195 SXT PHTX DST Java Movie
    1998/06/22 16:22:01 111 7 411 394 87 -7.5*1 ---- ---- 110 C2 C3 195 SXT PHTX DST Java Movie Only 3 points
    1998/06/22 20:45:58 294 16 373 559 774 25.7*1 ---- ---- 291 C2 C3 195 SXT PHTX DST Java Movie
    1998/06/23 03:59:09 231 92 434 424 420 -0.8 2.2e+15 2.1e+30 237 C2 C3 195 SXT PHTX DST Java Movie
    1998/06/23 08:59:09 299 31 595 526 468 -10.1*1 6.2e+14 1.1e+30 301 C2 C3 195 SXT PHTX DST Java Movie
    1998/06/23 20:55:21 71 60 279 250 263 -1.0 4.9e+16 1.9e+31 59 C2 C3 195 SXT PHTX DST Java Movie UVCS
    1998/06/23 21:55:22 112 8 416 521 751 20.3*1 ---- ---- 105 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1998/06/24 02:27:05 113 6 227 176 0 -9.1*1 ---- ---- 110 C2 C3 195 SXT PHTX DST Java Movie Only 3 points
    1998/06/24 08:27:05 17 69 144 132 0 -2.1*1 9.6e+12 9.9e+26 10 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only C2
    1998/06/24 09:27:12 110 9 374 337 0 -9.3*1 ---- ---- 105 C2 C3 195 SXT PHTX DST Java Movie

    *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).