• 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
    1998/06/01 11:27:05 263 38 467 579 1238 60.5*1 ---- ---- 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 1.2e+14 1.1e+29 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 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 ---- ---- 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
    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 ---- ---- 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 ---- ---- 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 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 6.3e+12 1.4e+27 104 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 1.2e+14*2 2.2e+29*2 103 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 ---- ---- 97 C2 C3 195 SXT PHTX DST Java Movie 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