• 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] Daily Movies
    and Plots     		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 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
    1999/08/01 16:50:07 100 14 440 435 401 -1.5*1 1.4e+14 1.4e+29 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 ---- ---- 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 ---- ---- 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 ---- ---- 264 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Partial Halo
    1999/08/03 19:26:50 206 17 ---- --- --- --- ---- ---- 206 C2 C3 195 SXT PHTX DST Java Movie 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
    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 3.6e+14 2.5e+29 81 C2 C3 195 SXT PHTX DST Java Movie
    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
    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
    1999/08/07 23:50:05 169 185 283 234 0 -7.6*1 ---- ---- 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 ---- ---- 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 1.7e+14*2 1.5e+29*2 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 15:06:06 209 188 295 327 343 2.3*1 ---- ---- 192 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Partial Halo
    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
    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
    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 3.4e+14 7.6e+29 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