• 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
    1999/08/01 02:06:05 274 62 231 129 0 -17.1*1 2.3e+14 6.1e+28 276 C2 C3 195 SXT PHTX DST Java Movie UVCS Poor Event
    1999/08/01 06:50:05 273 116 254 241 209 -1.2*1 8.0e+14 2.6e+29 284 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/08/01 16:26:07 288 93 221 460 620 16.2*1 ---- ---- 301 C2 C3 195 SXT PHTX DST Java Movie UVCS
    1999/08/01 16:50:07 100 14 440 435 401 -1.5*1 ---- ---- 99 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/08/01 19:26:55 25 135 1159 1165 1161 1.0 ---- ---- 7 C2 C3 195 SXT PHTX DST Java Movie Partial Halo
    1999/08/01 21:50:07 23 101 347 404 625 12.4*1 ---- ---- 9 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2007/06/19
    1999/08/02 07:26:51 99 189 286 281 270 -0.5*1 2.5e+15*2 1.0e+30*2 83 C2 C3 195 SXT PHTX DST Java Movie Partial Halo
    1999/08/02 13:26:49 225 21 1123 1318 1411 56.5*1 2.3e+14 1.4e+30 212 C2 C3 195 SXT PHTX DST Java Movie
    1999/08/02 21:26:08 82 175 398 422 501 4.7*1 5.4e+14*2 4.3e+29*2 43 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Partial Halo
    1999/08/02 22:26:05 271 157 292 299 317 0.9*1 1.4e+15*2 5.8e+29*2 264 C2 C3 195 SXT PHTX DST Java Movie UVCS Poor Event; Partial Halo
    1999/08/03 05:50:05 342 59 222 265 425 6.1*1 ---- ---- 355 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2009/02/10
    1999/08/03 19:26:50 206 17 ---- --- --- --- ---- ---- 206 C2 C3 195 SXT PHTX DST Java Movie UVCS Very Poor Event; Only C2; Unable to measure
    1999/08/03 21:50:05 58 19 335 320 0 -5.9*1 ---- ---- 54 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only 3 points
    1999/08/04 02:06:06 315 38 325 330 348 0.8*1 1.7e+14 8.8e+28 330 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/08/04 06:26:05 262 144 405 406 408 0.2 3.2e+15*2 2.6e+30*2 281 C2 C3 195 SXT PHTX DST Java Movie Partial Halo
    1999/08/04 14:06:05 312 64 493 553 665 10.8*1 3.6e+14 4.3e+29 315 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/08/04 21:06:08 67 59 779 613 0 -50.9*1 4.5e+14*2 1.4e+30*2 62 C2 C3 195 SXT PHTX DST Java Movie
    1999/08/05 02:50:05 16 20 542 559 635 6.2*1 1.1e+14 1.6e+29 28 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/08/05 02:50:05 78 50 585 523 0 -20.0*1 2.4e+14 4.0e+29 70 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/08/05 15:50:05 255 70 123 148 305 3.6*1 1.2e+15 9.2e+28 263 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only C2
    1999/08/05 17:06:05 55 115 685 1052 895 27.9 8.6e+15 2.0e+31 59 C2 C3 195 SXT PHTX DST Java Movie
    1999/08/05 23:26:05 258 73 217 223 234 0.4 3.2e+15 7.5e+29 276 C2 C3 195 SXT PHTX DST Java Movie UVCS
    1999/08/06 03:26:06 251 57 209 232 299 2.4 1.9e+15 4.1e+29 255 C2 C3 195 SXT PHTX DST Java Movie
    1999/08/06 06:06:05 78 14 375 451 522 7.9*1 ---- ---- 81 C2 C3 195 SXT PHTX DST Java Movie UVCS
    1999/08/06 06:26:05 322 87 419 388 385 -2.3*1 6.6e+15 5.8e+30 325 C2 C3 195 SXT PHTX DST Java Movie
    1999/08/06 11:26:05 254 60 368 420 791 22.1*1 1.4e+14 9.2e+28 273 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/08/06 17:50:05 281 43 323 300 0 -11.3*1 ---- ---- 275 C2 C3 195 SXT PHTX DST Java Movie
    1999/08/06 17:50:05 260 59 489 343 340 -14.2 ---- ---- 280 C2 C3 195 SXT PHTX DST Java Movie UVCS
    1999/08/06 18:50:05 311 23 708 769 804 9.7 7.1e+14 1.8e+30 310 C2 C3 195 SXT PHTX DST Java Movie
    1999/08/06 20:26:05 285 49 278 641 906 34.4 2.5e+15 9.7e+29 291 C2 C3 195 SXT PHTX DST Java Movie
    1999/08/06 21:26:08 126 21 330 318 251 -2.4*1 2.6e+14 1.4e+29 123 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/08/06 21:26:08 247 58 355 651 719 23.6 2.6e+14 1.7e+29 230 C2 C3 195 SXT PHTX DST Java Movie
    1999/08/06 23:26:06 244 56 423 592 638 15.5 4.2e+14 3.8e+29 229 C2 C3 195 SXT PHTX DST Java Movie
    1999/08/07 05:26:06 286 120 314 440 383 4.5 1.2e+15 5.7e+29 318 C2 C3 195 SXT PHTX DST Java Movie
    1999/08/07 17:26:05 297 7 577 482 0 -43.8 ---- ---- 299 C2 C3 195 SXT PHTX DST Java Movie
    1999/08/07 21:26:10 273 108 483 527 544 4.7 3.4e+15 4.0e+30 239 C2 C3 195 SXT PHTX DST Java Movie UVCS
    1999/08/07 23:50:05 169 185 283 234 0 -7.6*1 8.8e+13*2 3.5e+28*2 202 C2 C3 195 SXT PHTX DST Java Movie Partial Halo
    1999/08/08 10:26:05 63 55 389 416 481 4.2*1 8.4e+14 6.3e+29 59 C2 C3 195 SXT PHTX DST Java Movie
    1999/08/09 03:26:05 197 212 395 361 288 -4.1*1 1.0e+15*2 8.1e+29*2 183 C2 C3 195 SXT PHTX DST Java Movie Partial Halo
    1999/08/09 10:26:05 51 18 416 295 0 -52.7*1 ---- ---- 48 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/08/10 16:54:27 142 57 747 975 1121 43.7*1 3.8e+14 1.1e+30 144 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/08/11 06:06:08 147 60 548 562 562 1.4*1 1.4e+15 2.1e+30 155 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/08/11 06:06:08 24 94 279 261 113 -3.4*1 7.4e+14 2.9e+29 33 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/08/11 15:06:06 188 100 295 327 343 2.3*1 3.6e+14 1.6e+29 192 C2 C3 195 SXT PHTX DST Java Movie The width was changed from 188 to 100 degree on 2011/01/31; Poor Event
    1999/08/11 20:30:06 71 110 200 188 0 -3.1*1 5.4e+14*2 1.1e+29*2 99 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only C2
    1999/08/11 22:30:05 296 129 466 463 464 -0.2 9.4e+15*2 1.0e+31*2 323 C2 C3 195 SXT PHTX DST Java Movie Partial Halo
    1999/08/11 23:30:06 38 34 503 422 331 -9.8 2.1e+14 2.7e+29 39 C2 C3 195 SXT PHTX DST Java Movie
    1999/08/12 00:30:05 66 96 202 256 535 11.0*1 ---- ---- 70 C2 C3 195 SXT PHTX DST Java Movie 1.5; Poor Event; Only C2
    1999/08/12 00:30:05 284 106 521 430 470 -6.2 6.0e+15 8.1e+30 309 C2 C3 195 SXT PHTX DST Java Movie UVCS
    1999/08/12 12:06:05 63 9 598 601 604 0.5*1 ---- ---- 55 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/08/12 18:30:05 8 45 631 639 645 1.2*1 5.8e+14 1.2e+30 18 C2 C3 195 SXT PHTX DST Java Movie
    1999/08/12 21:07:09 258 78 240 227 108 -2.2 9.0e+14 2.6e+29 256 C2 C3 195 SXT PHTX DST Java Movie
    1999/08/14 02:30:05 249 120 406 388 345 -2.5 3.5e+14 2.9e+29 271 C2 C3 195 SXT PHTX DST Java Movie
    1999/08/14 06:30:05 73 108 401 509 459 5.1 1.0e+16 8.4e+30 50 C2 C3 195 SXT PHTX DST Java Movie UVCS
    1999/08/14 14:30:06 265 100 316 285 236 -2.8 1.8e+15 9.1e+29 271 C2 C3 195 SXT PHTX DST Java Movie
    1999/08/14 18:30:05 146 24 646 353 0 -42.3*1 3.7e+14 7.8e+29 149 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/08/14 19:54:05 55 16 665 523 636 -9.9 ---- ---- 52 C2 C3 195 SXT PHTX DST Java Movie
    1999/08/15 00:54:06 66 100 677 530 640 -10.9 3.6e+15 8.2e+30 78 C2 C3 195 SXT PHTX DST Java Movie
    1999/08/15 07:31:20 149 15 489 525 962 32.7*1 ---- ---- 152 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only 3 points; Only C2
    1999/08/15 12:54:05 52 9 482 557 890 29.1*1 ---- ---- 49 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only 3 points
    1999/08/15 14:06:33 262 86 340 254 37 -7.8*1 9.9e+14 5.7e+29 256 C2 C3 195 SXT PHTX DST Java Movie
    1999/08/16 00:30:05 155 117 410 450 676 13.3*1 1.1e+15 9.4e+29 117 C2 C3 195 SXT PHTX DST Java Movie The width was changed from 189 to 117 degree on 2012/01/31; Only C2
    1999/08/16 02:30:05 47 13 631 569 0 -27.3*1 ---- ---- 44 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/08/16 08:30:05 34 16 387 375 330 -2.2*1 ---- ---- 27 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/08/16 09:30:06 51 19 527 483 444 -5.7*1 ---- ---- 43 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/08/16 10:31:03 147 13 883 1024 1627 100.2*1 ---- ---- 152 C2 C3 195 SXT PHTX DST Java Movie UVCS Poor Event; Only 3 points
    1999/08/16 12:06:06 122 69 215 161 0 -5.9*1 2.1e+14 4.8e+28 112 C2 C3 195 SXT PHTX DST Java Movie
    1999/08/16 17:39:10 92 84 543 352 0 -34.8 1.1e+15 1.7e+30 112 C2 C3 195 SXT PHTX DST Java Movie UVCS
    1999/08/17 05:09:53 162 265 736 653 697 -7.0 1.1e+16*2 3.0e+31*2 146 C2 C3 195 SXT PHTX DST Java Movie UVCS Partial Halo
    1999/08/17 13:31:51 36 48 216 238 475 7.8 ---- ---- 29 C2 C3 195 SXT PHTX DST Java Movie Only C2
    1999/08/17 13:31:51 61 261 776 1316 1100 45.7 1.5e+16*2 4.6e+31*2 46 C2 C3 195 SXT PHTX DST Java Movie Partial Halo
    1999/08/17 15:30:05 54 >206 962 1116 1017 17.8 ---- ---- 41 C2 C3 195 SXT PHTX DST Java Movie Uncertain Width; Partial Halo
    1999/08/18 05:54:05 262 90 194 191 165 -0.5*1 2.5e+15 4.7e+29 253 C2 C3 195 SXT PHTX DST Java Movie
    1999/08/18 11:30:05 267 106 370 300 0 -13.5*1 2.5e+15 1.7e+30 286 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/08/18 18:54:05 26 21 457 456 457 -0.1*1 6.6e+14 6.9e+29 19 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/08/18 22:30:22 23 32 442 493 522 5.9*1 3.8e+14 3.7e+29 13 C2 C3 195 SXT PHTX DST Java Movie UVCS
    1999/08/19 12:50:05 204 88 415 365 373 -3.2*1 1.2e+15 9.9e+29 200 C2 C3 195 SXT PHTX DST Java Movie
    1999/08/20 13:26:49 83 130 209 169 0 -6.7*1 1.4e+15*2 3.1e+29*2 115 C2 C3 195 SXT PHTX DST Java Movie Partial Halo
    1999/08/20 18:06:05 346 88 261 268 278 0.5 9.7e+14 3.3e+29 351 C2 C3 195 SXT PHTX DST Java Movie
    1999/08/20 18:50:07 84 94 631 588 546 -6.8 8.2e+14 1.6e+30 93 C2 C3 195 SXT PHTX DST Java Movie
    1999/08/20 23:26:05 95 76 812 622 745 -19.2 2.6e+15 8.5e+30 104 C2 C3 195 SXT PHTX DST Java Movie
    1999/08/21 13:50:05 295 81 101 135 317 4.0*1 6.5e+14 3.3e+28 314 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only C2
    1999/08/21 15:26:05 159 9 695 755 900 17.7*1 ---- ---- 164 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/08/21 16:50:05 108 68 841 554 569 -39.8 8.5e+14 3.0e+30 109 C2 C3 195 SXT PHTX DST Java Movie
    1999/08/21 22:26:05 115 66 1295 1105 1203 -33.2*1 4.5e+14 3.7e+30 119 C2 C3 195 SXT PHTX DST Java Movie
    1999/08/22 06:50:05 164 5 617 793 1182 53.0*1 ---- ---- 169 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only 3 points
    1999/08/22 09:07:58 104 108 285 278 273 -0.5 1.8e+15 7.5e+29 122 C2 C3 195 SXT PHTX DST Java Movie
    1999/08/22 16:50:07 160 8 866 824 700 -16.1*1 ---- ---- 163 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/08/23 22:26:25 167 6 559 385 0 -72.7*1 ---- ---- 168 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only 3 points
    1999/08/24 09:50:05 51 112 275 329 333 2.6 1.4e+15 5.1e+29 57 C2 C3 195 SXT PHTX DST Java Movie The width was changed from 194 to 112 degree on 2012/01/31
    1999/08/24 23:26:05 15 87 397 456 430 2.7 2.4e+15 1.9e+30 13 C2 C3 195 SXT PHTX DST Java Movie
    1999/08/25 02:06:06 140 17 195 153 0 -23.6*1 ---- ---- 142 C2 C3 195 SXT PHTX DST Java Movie Only 3 points; Only C2
    1999/08/25 11:06:06 101 91 529 497 515 -2.0 2.2e+15 3.1e+30 114 C2 C3 195 SXT PHTX DST Java Movie
    1999/08/25 12:50:05 175 7 408 408 406 -0.1*1 ---- ---- 170 C2 C3 195 SXT PHTX DST Java Movie UVCS Poor Event; Only 3 points
    1999/08/25 20:26:06 14 103 426 610 558 10.5 8.4e+15 7.6e+30 349 C2 C3 195 SXT PHTX DST Java Movie
    1999/08/25 23:06:05 297 5 624 566 512 -8.8 ---- ---- 296 C2 C3 195 SXT PHTX DST Java Movie
    1999/08/26 03:08:01 271 71 581 429 190 -22.8 7.9e+14 1.3e+30 289 C2 C3 195 SXT PHTX DST Java Movie
    1999/08/26 14:26:05 106 79 289 272 240 -1.5 2.8e+15 1.2e+30 109 C2 C3 195 SXT PHTX DST Java Movie
    1999/08/26 15:07:57 1 45 508 532 527 2.0*1 6.9e+14 8.9e+29 360 C2 C3 195 SXT PHTX DST Java Movie
    1999/08/26 15:07:57 182 62 266 309 382 4.1*1 6.7e+14 2.4e+29 180 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/08/26 17:06:05 121 72 631 660 650 2.4 3.8e+15 7.7e+30 131 C2 C3 195 SXT PHTX DST Java Movie
    1999/08/27 12:26:06 70 162 630 557 583 -6.5 8.6e+15*2 1.7e+31*2 84 C2 C3 195 SXT PHTX DST Java Movie Partial Halo
    1999/08/27 20:26:05 69 153 769 583 536 -30.5 2.1e+15*2 6.2e+30*2 73 C2 C3 195 SXT PHTX DST Java Movie Partial Halo
    1999/08/28 00:50:05 308 12 744 517 499 -34.5*1 ---- ---- 309 C2 C3 195 SXT PHTX DST Java Movie
    1999/08/28 01:26:48 289 98 1147 968 1030 -32.3 4.9e+15 3.2e+31 282 C2 C3 195 SXT PHTX DST Java Movie UVCS
    1999/08/28 10:26:05 226 32 552 554 554 0.2 1.3e+15 2.0e+30 220 C2 C3 195 SXT PHTX DST Java Movie
    1999/08/28 18:26:24 120 245 462 483 468 1.1 1.5e+16*2 1.6e+31*2 221 C2 C3 195 SXT PHTX DST Java Movie Partial Halo
    1999/08/29 01:26:51 212 134 241 377 349 5.0*1 4.1e+13*2 1.2e+28*2 184 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Partial Halo
    1999/08/29 04:14:08 19 44 173 184 237 1.3*1 2.1e+14 3.2e+28 23 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/08/29 06:26:05 289 69 161 213 315 3.7*1 3.6e+15 4.7e+29 304 C2 C3 195 SXT PHTX DST Java Movie
    1999/08/29 23:50:05 19 16 437 495 479 3.6*1 ---- ---- 19 C2 C3 195 SXT PHTX DST Java Movie
    1999/08/30 10:26:23 25 53 386 346 285 -4.6*1 7.0e+14 5.2e+29 44 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/08/30 15:06:09 299 79 742 683 708 -6.6*1 1.0e+15 2.8e+30 326 C2 C3 195 SXT PHTX DST Java Movie UVCS
    1999/08/30 18:50:05 9 59 404 361 288 -5.1 2.8e+15 2.3e+30 7 C2 C3 195 SXT PHTX DST Java Movie
    1999/08/31 21:30:08 0 43 174 183 218 0.9*1 ---- ---- 6 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).