• 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
    2010/08/01 00:30:05 90 37 127 100 0 -15.0*1 7.2e+13*2 5.8e+27*2 94 C2 C3 PHTX DST Java Movie Poor Event; Only 3 points; Only C2
    2010/08/01 13:42:05 Halo 360 850 1309 0 247.0*1 ---- ---- 84 C2 C3 PHTX DST Java Movie data gap, CME only in C3; Poor Event; Only 3 points; Only C3
    2010/08/01 23:18:05 56 120 527 1039 3728 711.6*1 ---- ---- 33 C2 C3 PHTX DST Java Movie data gaps, only three points; Only 3 points
    2010/08/03 11:12:07 93 21 221 195 0 -5.3*1 2.9e+13 7.2e+27 94 C2 C3 PHTX DST Java Movie Very Poor Event
    2010/08/03 21:17:22 107 14 265 243 131 -2.6*1 ---- ---- 107 C2 C3 PHTX DST Java Movie
    2010/08/04 15:24:05 273 10 409 480 889 27.7*1 ---- ---- 269 C2 C3 PHTX DST Java Movie Very Poor Event
    2010/08/04 19:12:05 59 4 386 449 522 7.5*1 ---- ---- 61 C2 C3 PHTX DST Java Movie Very Poor Event
    2010/08/04 23:05:32 292 11 654 528 0 -132.6*1 ---- ---- 294 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2010/08/05 02:12:05 239 37 192 227 461 7.8*1 9.1e+13 1.7e+28 243 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2010/08/05 18:00:06 252 38 368 409 574 9.3*1 1.2e+14 8.2e+28 258 C2 C3 PHTX DST Java Movie Poor Event
    2010/08/05 22:12:05 86 29 200 247 605 14.0*1 9.3e+13 1.9e+28 89 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2010/08/05 23:26:45 300 37 377 325 316 -3.4 1.1e+15 7.5e+29 302 C2 C3 PHTX DST Java Movie
    2010/08/06 02:00:06 192 6 286 212 0 -35.2*1 ---- ---- 197 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2010/08/06 02:24:05 51 16 379 524 1104 48.1*1 ---- ---- 51 C2 C3 PHTX DST Java Movie Only C2
    2010/08/06 10:36:05 250 18 209 241 768 23.0*1 ---- ---- 251 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2010/08/06 12:48:05 299 12 396 477 918 31.6*1 ---- ---- 295 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2010/08/06 21:37:04 56 27 513 725 1057 48.4*1 5.1e+13 6.8e+28 56 C2 C3 PHTX DST Java Movie Very Poor Event
    2010/08/06 22:36:05 296 8 319 635 2442 248.9*1 ---- ---- 295 C2 C3 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2010/08/07 02:12:05 70 103 443 560 982 35.0*1 1.1e+14 1.1e+29 48 C2 C3 PHTX DST Java Movie Only C2
    2010/08/07 02:48:05 297 24 547 539 533 -1.0 6.9e+14 1.0e+30 292 C2 C3 PHTX DST Java Movie
    2010/08/07 09:36:05 293 25 377 366 348 -1.2*1 1.7e+14 1.2e+29 298 C2 C3 PHTX DST Java Movie
    2010/08/07 11:00:05 250 82 228 360 423 7.0 2.3e+15 6.1e+29 253 C2 C3 PHTX DST Java Movie
    2010/08/07 12:00:05 120 20 287 167 0 -48.3*1 1.4e+13 5.6e+27 117 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2010/08/07 18:36:06 Halo 360 871 755 827 -11.9 7.9e+15*2 3.0e+31*2 94 C2 C3 PHTX DST Java Movie
    2010/08/07 22:24:05 116 46 492 472 470 -1.7*1 1.1e+14 1.3e+29 117 C2 C3 PHTX DST Java Movie
    2010/08/08 08:00:05 333 20 324 401 815 25.2*1 4.4e+13 2.3e+28 334 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2010/08/08 12:36:05 166 179 234 495 795 26.8*1 7.0e+14*2 1.9e+29*2 197 C2 C3 PHTX DST Java Movie Poor Event; Partial Halo
    2010/08/09 05:24:05 247 41 351 397 492 6.1*1 2.0e+13 1.2e+28 245 C2 C3 PHTX DST Java Movie Poor Event
    2010/08/09 20:12:05 128 30 460 446 284 -6.1*1 7.6e+13 8.0e+28 122 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2010/08/10 05:00:05 308 28 567 820 836 24.8 9.0e+14 1.5e+30 299 C2 C3 PHTX DST Java Movie
    2010/08/10 05:12:05 68 108 427 405 383 -2.2*1 9.3e+14 8.4e+29 92 C2 C3 PHTX DST Java Movie
    2010/08/11 04:36:07 239 8 246 355 1226 60.8*1 ---- ---- 241 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2010/08/11 05:00:05 322 9 415 591 1548 97.7*1 ---- ---- 320 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2010/08/11 06:12:05 89 12 132 212 490 10.0*1 ---- ---- 88 C2 C3 PHTX DST Java Movie Very Poor Event
    2010/08/11 10:36:06 11 9 651 645 572 -4.3*1 ---- ---- 11 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2010/08/11 19:24:05 336 6 554 491 0 -43.7*1 ---- ---- 331 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2010/08/13 05:12:07 247 32 161 223 489 9.5*1 2.7e+14 3.5e+28 250 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2010/08/13 15:24:05 60 6 618 487 0 -90.1*1 ---- ---- 61 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2010/08/13 15:48:05 276 77 348 275 0 -31.9*1 3.2e+13 1.9e+28 285 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2010/08/14 10:12:05 Halo 360 1205 993 989 -43.0 6.5e+15*2 4.7e+31*2 224 C2 C3 PHTX DST Java Movie
    2010/08/14 14:24:05 237 8 377 384 395 0.8*1 ---- ---- 245 C2 C3 PHTX DST Java Movie
    2010/08/14 15:48:06 241 14 410 310 0 -13.0*1 ---- ---- 245 C2 C3 PHTX DST Java Movie
    2010/08/14 21:27:55 254 20 307 430 829 27.4*1 5.0e+13 2.4e+28 263 C2 C3 PHTX DST Java Movie Poor Event
    2010/08/15 01:36:15 264 21 430 496 646 12.4*1 2.3e+13 2.1e+28 264 C2 C3 PHTX DST Java Movie Poor Event
    2010/08/15 06:24:05 115 61 572 741 755 16.9 1.6e+15 2.7e+30 123 C2 C3 PHTX DST Java Movie
    2010/08/15 08:24:07 302 95 349 446 532 9.3 2.1e+15 1.3e+30 306 C2 C3 PHTX DST Java Movie
    2010/08/15 20:00:06 124 15 470 583 696 15.9*1 ---- ---- 123 C2 C3 PHTX DST Java Movie
    2010/08/16 09:12:08 113 10 408 414 424 0.7*1 ---- ---- 117 C2 C3 PHTX DST Java Movie Poor Event
    2010/08/17 07:36:05 29 15 332 560 1269 66.9*1 ---- ---- 38 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2010/08/17 17:48:07 113 44 302 430 548 11.3*1 7.4e+13 3.4e+28 117 C2 C3 PHTX DST Java Movie Poor Event
    2010/08/18 00:24:06 298 88 403 553 562 10.3*1 7.6e+15 6.1e+30 314 C2 C3 PHTX DST Java Movie
    2010/08/18 03:24:05 130 21 60 89 279 3.2*1 3.2e+14 5.7e+27 126 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2010/08/18 05:48:05 255 184 1471 1363 1416 -20.2 1.1e+16*2 1.2e+32*2 230 C2 C3 PHTX DST Java Movie Partial Halo
    2010/08/18 13:25:46 101 15 523 371 0 -47.9*1 ---- ---- 106 C2 C3 PHTX DST Java Movie
    2010/08/18 22:36:05 113 50 629 595 601 -3.3 1.1e+15 2.1e+30 107 C2 C3 PHTX DST Java Movie
    2010/08/19 07:48:06 133 26 218 224 265 1.0*1 1.9e+14 4.5e+28 134 C2 C3 PHTX DST Java Movie Only C2
    2010/08/19 21:12:10 271 10 307 426 582 12.5*1 ---- ---- 271 C2 C3 PHTX DST Java Movie Very Poor Event
    2010/08/19 21:24:05 12 6 338 230 0 -73.0*1 ---- ---- 10 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2010/08/20 04:24:05 252 8 309 319 406 3.1*1 ---- ---- 257 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2010/08/24 01:48:05 60 41 295 330 415 4.2*1 2.0e+14 8.6e+28 69 C2 C3 PHTX DST Java Movie Poor Event
    2010/08/24 08:00:05 46 9 290 318 612 12.6*1 ---- ---- 49 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2010/08/24 11:12:05 274 13 185 196 367 4.3*1 ---- ---- 276 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2010/08/24 13:25:22 190 4 561 520 0 -60.9*1 ---- ---- 191 C2 C3 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2010/08/25 02:36:07 358 6 294 348 435 5.8*1 ---- ---- 350 C2 C3 PHTX DST Java Movie Poor Event
    2010/08/25 10:00:07 164 40 261 350 573 12.4*1 1.2e+14 4.2e+28 173 C2 C3 PHTX DST Java Movie Very Poor Event
    2010/08/25 12:36:06 8 39 184 151 0 -6.2*1 9.2e+13 1.6e+28 3 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2010/08/25 12:48:05 293 31 253 292 533 10.1*1 4.0e+13 1.3e+28 298 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2010/08/26 00:12:05 58 23 266 318 705 20.4*1 1.9e+13 6.7e+27 60 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2010/08/26 02:00:05 60 16 341 327 133 -4.5*1 ---- ---- 63 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2010/08/26 05:36:05 63 27 386 298 0 -21.1*1 5.6e+13 4.1e+28 67 C2 C3 PHTX DST Java Movie Poor Event
    2010/08/26 19:36:06 219 7 331 272 0 -31.3*1 ---- ---- 228 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2010/08/27 10:12:05 242 64 479 618 807 21.7 2.5e+15 2.9e+30 246 C2 C3 PHTX DST Java Movie
    2010/08/28 11:12:06 323 34 124 269 378 5.9*1 7.1e+14 5.4e+28 322 C2 C3 PHTX DST Java Movie Poor Event
    2010/08/28 12:48:05 224 8 383 456 547 9.7*1 ---- ---- 222 C2 C3 PHTX DST Java Movie Very Poor Event
    2010/08/28 17:24:06 262 47 233 203 0 -9.7*1 6.2e+13 1.7e+28 263 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2010/08/29 14:24:05 326 38 253 275 306 1.6*1 1.8e+13 5.6e+27 325 C2 C3 PHTX DST Java Movie Poor Event
    2010/08/30 04:36:05 330 10 299 389 600 13.7*1 ---- ---- 326 C2 C3 PHTX DST Java Movie Very Poor Event
    2010/08/30 05:12:05 281 6 278 268 0 -4.6*1 ---- ---- 280 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2010/08/30 23:05:34 249 30 259 245 0 -4.4*1 8.6e+13 2.9e+28 247 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2010/08/31 01:25:45 247 27 184 186 216 0.6*1 1.2e+14 2.1e+28 250 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2010/08/31 03:24:05 258 33 319 255 0 -10.5*1 2.8e+14 1.4e+29 250 C2 C3 PHTX DST Java Movie
    2010/08/31 06:36:05 244 21 187 112 0 -16.2*1 1.0e+14 1.8e+28 244 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2010/08/31 14:12:07 253 47 426 367 204 -8.0*1 6.7e+14 6.1e+29 241 C2 C3 PHTX DST Java Movie
    2010/08/31 20:24:06 240 16 316 304 0 -7.3*1 ---- ---- 238 C2 C3 PHTX DST Java Movie Only C2
    2010/08/31 21:17:21 Halo 360 1304 1240 1267 -12.5 6.7e+15*2 5.7e+31*2 206 C2 C3 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).