• 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
    1998/11/01 08:18:09 302 25 238 432 394 6.6*1 ---- ---- 298 C2 C3 195 SXT PHTX DST Java Movie
    1998/11/01 12:18:09 108 85 453 529 612 10.0 ---- ---- 119 C2 C3 195 SXT PHTX DST Java Movie
    1998/11/02 00:48:07 88 71 359 347 352 -0.5*1 ---- ---- 108 C2 C3 195 SXT PHTX DST Java Movie Not LE
    1998/11/02 13:54:05 102 50 246 --- --- --- ---- ---- 102 C2 C3 195 SXT PHTX DST Java Movie Only 2 points; Only C2
    1998/11/02 14:18:10 116 169 661 660 660 -0.2 ---- ---- 115 C2 C3 195 SXT PHTX DST Java Movie Partial Halo
    1998/11/03 02:18:09 309 27 401 339 251 -6.5 ---- ---- 306 C2 C3 195 SXT PHTX DST Java Movie
    1998/11/03 05:18:08 123 11 291 374 1059 44.8*1 ---- ---- 119 C2 C3 195 SXT PHTX DST Java Movie Only 3 points; Only C2
    1998/11/03 16:18:08 117 29 326 527 822 27.1*1 ---- ---- 123 C2 C3 195 SXT PHTX DST Java Movie
    1998/11/03 20:54:07 68 61 265 275 359 2.6*1 ---- ---- 55 C2 C3 195 SXT PHTX DST Java Movie Only C2
    1998/11/04 02:18:10 151 27 489 403 323 -9.6*1 ---- ---- 146 C2 C3 195 SXT PHTX DST Java Movie
    1998/11/04 04:54:07 352 69 102 77 0 -9.4*1 ---- ---- 14 C2 C3 195 SXT PHTX DST Java Movie Only C2
    1998/11/04 05:18:10 182 74 240 389 386 5.6 ---- ---- 182 C2 C3 195 SXT PHTX DST Java Movie
    1998/11/04 06:52:42 102 60 221 352 502 10.9 ---- ---- 100 C2 C3 195 SXT PHTX DST Java Movie
    1998/11/04 07:54:06 Halo (OA) 360 523 723 758 19.6 ---- ---- 349 C2 C3 195 SXT PHTX DST Java Movie
    1998/11/04 12:18:08 253 47 868 1015 945 16.0 ---- ---- 246 C2 C3 195 SXT PHTX DST Java Movie
    1998/11/04 23:34:09 74 68 255 314 671 17.1*1 ---- ---- 71 C2 C3 195 SXT PHTX DST Java Movie Only C2
    1998/11/05 02:02:52 Halo (S) 360 380 425 460 4.2*1 ---- ---- 264 C2 C3 195 SXT PHTX DST Java Movie
    1998/11/05 02:41:16 155 >180 568 601 610 3.4 ---- ---- 147 C2 C3 195 SXT PHTX DST Java Movie Uncertain Width; Partial Halo
    1998/11/05 07:31:21 325 26 206 254 311 2.9*1 ---- ---- 339 C2 C3 195 SXT PHTX DST Java Movie
    1998/11/05 12:37:37 98 27 226 285 523 10.3*1 ---- ---- 94 C2 C3 195 SXT PHTX DST Java Movie
    1998/11/05 12:37:37 242 63 251 279 694 17.8*1 ---- ---- 239 C2 C3 195 SXT PHTX DST Java Movie Only C2
    1998/11/05 20:44:02 Halo (OA) 360 1118 949 1044 -24.0*1 ---- ---- 300 C2 C3 195 SXT PHTX DST Java Movie
    1998/11/06 02:18:05 159 >160 405 410 438 1.4 ---- ---- 188 C2 C3 195 SXT PHTX DST Java Movie Uncertain Width; Partial Halo
    1998/11/06 04:18:05 141 52 481 617 1359 73.3*1 ---- ---- 145 C2 C3 195 SXT PHTX DST Java Movie Only 3 points; Only C2
    1998/11/06 09:18:06 244 25 353 308 135 -5.8*1 ---- ---- 245 C2 C3 195 SXT PHTX DST Java Movie
    1998/11/06 09:54:06 286 115 278 270 201 -1.7*1 ---- ---- 304 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only C2
    1998/11/06 11:18:05 133 20 322 411 1111 48.2*1 ---- ---- 133 C2 C3 195 SXT PHTX DST Java Movie Only 3 points; Only C2
    1998/11/06 16:38:05 269 44 159 283 317 4.2 ---- ---- 273 C2 C3 195 SXT PHTX DST Java Movie
    1998/11/07 00:18:05 66 89 287 301 436 4.7*1 ---- ---- 48 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2007/07/26; Only C2
    1998/11/07 01:54:05 296 19 381 308 191 -7.0 ---- ---- 296 C2 C3 195 SXT PHTX DST Java Movie
    1998/11/07 06:18:05 250 13 247 328 1001 40.7*1 ---- ---- 250 C2 C3 195 SXT PHTX DST Java Movie Only 3 points; Only C2
    1998/11/07 10:18:05 270 48 398 350 0 -22.4*1 ---- ---- 271 C2 C3 195 SXT PHTX DST Java Movie Only 3 points
    1998/11/07 11:54:05 Halo (OA) 360 632 642 642 1.3 ---- ---- 258 C2 C3 195 SXT PHTX DST Java Movie Not LE
    1998/11/07 12:50:05 94 14 398 403 441 1.6*1 ---- ---- 94 C2 C3 195 SXT PHTX DST Java Movie
    1998/11/07 20:54:05 321 96 750 951 941 23.7 ---- ---- 314 C2 C3 195 SXT PHTX DST Java Movie
    1998/11/08 01:25:34 120 20 350 482 604 13.8*1 ---- ---- 121 C2 C3 195 SXT PHTX DST Java Movie
    1998/11/08 11:54:05 264 196 559 588 641 6.2*1 ---- ---- 214 C2 C3 195 SXT PHTX DST Java Movie Partial Halo
    1998/11/08 22:56:39 291 49 146 --- --- --- ---- ---- 292 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only 2 points; Only C2
    1998/11/09 00:18:05 211 24 236 223 212 -0.7 ---- ---- 213 C2 C3 195 SXT PHTX DST Java Movie
    1998/11/09 00:50:05 82 16 526 448 0 -16.2*1 ---- ---- 82 C2 C3 195 SXT PHTX DST Java Movie
    1998/11/09 01:54:05 16 94 144 165 180 0.7 ---- ---- 27 C2 C3 195 SXT PHTX DST Java Movie
    1998/11/09 09:18:05 93 40 320 307 228 -2.8*1 ---- ---- 106 C2 C3 195 SXT PHTX DST Java Movie
    1998/11/09 11:54:06 105 77 490 598 602 9.4 ---- ---- 84 C2 C3 195 SXT PHTX DST Java Movie
    1998/11/09 18:17:55 330 190 325 348 391 2.6 ---- ---- 338 C2 C3 195 SXT PHTX DST Java Movie Partial Halo
    1998/11/09 19:54:05 312 53 276 419 424 6.6 ---- ---- 320 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2007/07/09
    1998/11/09 21:18:11 303 51 380 346 306 -3.3*1 ---- ---- 309 C2 C3 195 SXT PHTX DST Java Movie
    1998/11/10 01:54:05 245 29 284 253 82 -3.8*1 ---- ---- 253 C2 C3 195 SXT PHTX DST Java Movie
    1998/11/10 03:54:05 92 43 357 476 1106 48.3*1 ---- ---- 107 C2 C3 195 SXT PHTX DST Java Movie Only C2
    1998/11/10 06:18:05 343 122 286 235 154 -3.6*1 ---- ---- 344 C2 C3 195 SXT PHTX DST Java Movie Partial Halo
    1998/11/10 07:54:05 99 15 129 133 202 1.0 ---- ---- 97 C2 C3 195 SXT PHTX DST Java Movie Only C2
    1998/11/10 14:54:05 305 81 847 868 855 2.0 ---- ---- 325 C2 C3 195 SXT PHTX DST Java Movie
    1998/11/10 19:54:06 291 92 529 475 494 -3.8*1 ---- ---- 314 C2 C3 195 SXT PHTX DST Java Movie
    1998/11/11 00:50:05 99 43 512 650 875 29.2 ---- ---- 101 C2 C3 195 SXT PHTX DST Java Movie
    1998/11/11 15:54:05 321 66 146 202 315 3.8 ---- ---- 323 C2 C3 195 SXT PHTX DST Java Movie
    1998/11/11 20:18:05 173 13 385 292 0 -43.1*1 ---- ---- 170 C2 C3 195 SXT PHTX DST Java Movie Only 3 points
    1998/11/12 05:54:06 221 19 254 310 444 6.3*1 ---- ---- 226 C2 C3 195 SXT PHTX DST Java Movie
    1998/11/12 10:18:05 297 109 393 485 575 9.9 ---- ---- 288 C2 C3 195 SXT PHTX DST Java Movie
    1998/11/24 02:30:05 Halo (OA) 360 1798 1749 1771 -12.5 ---- ---- 225 C2 C3 195