• 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
    1999/12/03 23:30:05 249 52 330 382 450 5.8*1 5.7e+13 3.1e+28 239 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/12/05 18:06:05 82 160 202 228 310 2.7*1 3.4e+14*2 6.9e+28*2 49 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Partial Halo
    1999/12/05 22:30:06 93 145 320 273 187 -4.3*1 7.5e+14*2 3.8e+29*2 60 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Partial Halo
    1999/12/05 23:54:05 240 48 440 524 589 9.8*1 1.0e+13 1.0e+28 246 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/12/06 04:54:05 113 144 236 228 210 -0.7*1 9.6e+14*2 2.7e+29*2 63 C2 C3 195 SXT PHTX DST Java Movie Partial Halo
    1999/12/06 06:30:05 240 50 333 379 362 2.3 4.4e+14 2.5e+29 241 C2 C3 195 SXT PHTX DST Java Movie
    1999/12/06 09:30:08 Halo (BA) 360 653 492 109 -29.9*1 2.2e+15*2 4.8e+30*2 158 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/12/06 14:06:05 239 57 322 341 385 2.3*1 2.4e+14 1.2e+29 222 C2 C3 195 SXT PHTX DST Java Movie
    1999/12/06 15:54:05 296 13 418 422 435 0.8*1 ---- ---- 294 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/12/06 21:54:05 102 47 657 497 545 -15.4 1.1e+14 2.3e+29 106 C2 C3 195 SXT PHTX DST Java Movie
    1999/12/06 22:30:06 269 121 618 641 638 2.2 9.4e+14*2 1.8e+30*2 272 C2 C3 195 SXT PHTX DST Java Movie Partial Halo
    1999/12/07 10:54:05 115 24 424 397 362 -3.1*1 1.3e+14 1.2e+29 106 C2 C3 195 SXT PHTX DST Java Movie
    1999/12/11 10:30:05 244 90 369 416 548 8.1*1 1.2e+15 8.4e+29 248 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/12/11 20:30:06 106 196 359 369 362 0.4 9.4e+15*2 6.0e+30*2 96 C2 C3 195 SXT PHTX DST Java Movie Partial Halo
    1999/12/12 08:30:05 Halo (BA) 360 720 451 664 -21.5 1.6e+16*2 4.1e+31*2 199 C2 C3 195 SXT PHTX DST Java Movie
    1999/12/13 17:54:05 184 75 387 334 330 -3.2 7.1e+14 5.3e+29 171 C2 C3 195 SXT PHTX DST Java Movie
    1999/12/13 21:31:28 266 40 113 71 0 -15.6*1 5.2e+14 3.3e+28 254 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only C2
    1999/12/14 15:54:05 353 145 1002 927 944 -10.7 4.1e+15*2 2.1e+31*2 319 C2 C3 195 SXT PHTX DST Java Movie Partial Halo
    1999/12/14 20:30:05 63 46 271 310 437 5.8*1 3.2e+14 1.2e+29 65 C2 C3 195 SXT PHTX DST Java Movie
    1999/12/15 01:31:24 358 59 894 878 881 -2.4 1.1e+15 4.5e+30 354 C2 C3 195 SXT PHTX DST Java Movie
    1999/12/15 20:06:05 106 71 751 774 763 2.1 1.2e+15 3.3e+30 116 C2 C3 195 SXT PHTX DST Java Movie
    1999/12/16 01:31:22 220 10 325 325 326 0.0*1 ---- ---- 213 C2 C3 195 SXT PHTX DST Java Movie
    1999/12/16 03:30:05 80 94 248 249 268 0.4*1 ---- ---- 60 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2007/06/19; Only C2
    1999/12/16 04:30:05 280 51 567 640 635 6.9*1 1.4e+15 2.3e+30 295 C2 C3 195 SXT PHTX DST Java Movie
    1999/12/16 08:06:05 67 67 267 324 563 11.2 ---- ---- 55 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2007/06/19
    1999/12/16 09:06:05 38 24 488 655 972 34.8*1 ---- ---- 37 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2007/06/19
    1999/12/16 21:30:05 76 99 240 217 0 -4.6*1 1.9e+14 5.5e+28 42 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/12/17 07:54:05 123 53 292 312 349 1.9*1 6.3e+14 2.7e+29 118 C2 C3 195 SXT PHTX DST Java Movie UVCS
    1999/12/17 22:30:33 85 36 218 224 331 2.7*1 ---- ---- 89 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only C2
    1999/12/18 18:30:05 208 81 427 434 434 0.5 1.9e+15 1.8e+30 188 C2 C3 195 SXT PHTX DST Java Movie
    1999/12/18 20:06:05 349 35 452 431 439 -1.2*1 1.1e+15 1.2e+30 345 C2 C3 195 SXT PHTX DST Java Movie
    1999/12/19 02:30:05 294 125 294 397 942 37.4*1 5.1e+14*2 2.2e+29*2 285 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only 3 points; Only C2; Partial Halo
    1999/12/19 07:54:05 116 36 236 347 854 29.5*1 4.7e+13 1.3e+28 118 C2 C3 195 SXT PHTX DST Java Movie Only C2
    1999/12/19 10:54:34 349 11 532 602 815 21.5*1 ---- ---- 343 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/12/19 13:31:24 282 66 159 163 236 1.3 ---- ---- 294 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2005/12/21; Only C2
    1999/12/19 14:30:05 143 7 609 --- --- --- ---- ---- 138 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2005/12/21; Only 2 points; Only C2
    1999/12/20 03:57:38 301 65 299 228 100 -5.4*1 5.4e+14 2.4e+29 314 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/12/20 09:54:06 124 47 233 303 489 8.7 1.3e+15 3.6e+29 131 C2 C3 195 SXT PHTX DST Java Movie
    1999/12/20 11:30:05 38 83 510 508 502 -0.4*1 3.0e+14 3.9e+29 15 C2 C3 195 SXT PHTX DST Java Movie
    1999/12/20 18:06:05 Halo (OA) 360 1237 762 1049 -76.7 5.1e+15*2 3.9e+31*2 14 C2 C3 195 SXT PHTX DST Java Movie UVCS
    1999/12/21 17:54:35 31 91 291 297 317 0.8*1 2.0e+14 8.4e+28 47 C2 C3 195 SXT PHTX DST Java Movie
    1999/12/21 20:30:05 177 34 375 383 382 0.5 1.2e+15 8.6e+29 173 C2 C3 195 SXT PHTX DST Java Movie
    1999/12/22 01:31:24 354 28 153 242 1389 81.2*1 ---- ---- 357 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2005/12/21; Only 3 points; Only C2
    1999/12/22 02:30:05 Halo (OA) 360 570 482 473 -8.9 2.9e+15*2 4.7e+30*2 11 C2 C3 195 SXT PHTX DST Java Movie UVCS
    1999/12/22 11:30:22 2 45 470 315 0 -71.3*1 ---- ---- 0 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2005/12/21; Poor Event
    1999/12/22 19:31:22 Halo (OA) 360 605 571 590 -2.5 6.1e+15*2 1.1e+31*2 358 C2 C3 195 SXT PHTX DST Java Movie
    1999/12/23 06:30:05 359 72 620 492 0 -33.3*1 4.1e+14 7.8e+29 336 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/12/23 07:54:05 353 62 64 137 299 4.0*1 1.3e+15 2.7e+28 359 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/12/23 08:54:05 195 83 412 503 848 26.6*1 1.3e+14 1.1e+29 187 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/12/23 21:30:05 157 49 361 341 249 -3.6*1 1.5e+14 1.0e+29 160 C2 C3 195 SXT PHTX DST Java Movie
    1999/12/24 06:30:05 345 94 347 360 410 2.5*1 3.9e+14 2.4e+29 1 C2 C3 195 SXT PHTX DST Java Movie UVCS Poor Event
    1999/12/24 10:30:05 296 43 307 363 467 6.4 3.6e+14 1.7e+29 280 C2 C3 195 SXT PHTX DST Java Movie
    1999/12/25 12:30:07 46 31 711 884 1006 30.3*1 4.3e+14 1.1e+30 42 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/12/26 16:54:05 293 62 339 242 0 -35.2*1 2.4e+14 1.4e+29 290 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/12/27 02:06:05 283 96 753 563 688 -16.3 2.9e+15 8.2e+30 316 C2 C3 195 SXT PHTX DST Java Movie
    1999/12/27 07:31:21 305 33 263 331 650 17.3*1 ---- ---- 300 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/12/27 09:30:05 53 14 787 715 446 -23.6*1 ---- ---- 50 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/12/27 12:30:07 292 61 302 254 0 -9.6*1 1.6e+15 7.2e+29 308 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/12/27 17:54:05 300 54 321 260 210 -4.0*1 1.2e+15 6.1e+29 308 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/12/27 21:08:06 14 95 835 1176 1087 37.1 9.5e+15 3.3e+31 8 C2 C3 195 SXT PHTX DST Java Movie
    1999/12/28 00:54:05 293 82 672 568 526 -14.5 6.0e+15 1.4e+31 316 C2 C3 195 SXT PHTX DST Java Movie UVCS
    1999/12/28 12:54:05 300 60 387 300 264 -6.8 5.8e+14 4.4e+29 309 C2 C3 195 SXT PHTX DST Java Movie
    1999/12/28 15:54:07 247 36 420 403 367 -2.4*1 2.7e+14 2.4e+29 247 C2 C3 195 SXT PHTX DST Java Movie
    1999/12/28 23:54:05 170 96 506 528 536 2.2*1 8.2e+14 1.0e+30 170 C2 C3 195 SXT PHTX DST Java Movie
    1999/12/29 09:54:05 304 70 404 303 296 -6.9 1.7e+15 1.4e+30 305 C2 C3 195 SXT PHTX DST Java Movie
    1999/12/29 14:54:06 138 59 340 552 616 15.1 2.8e+15 1.6e+30 158 C2 C3 195 SXT PHTX DST Java Movie
    1999/12/30 21:08:07 28 16 1005 1232 1469 73.5*1 ---- ---- 24 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/12/31 02:54:05 142 38 399 615 1259 65.5*1 5.2e+14 4.2e+29 144 C2 C3 195 SXT PHTX DST Java Movie Poor Event

    *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).