• 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
    2004/12/01 07:31:46 0 >198 834 772 802 -6.6 4.6e+15*2 1.6e+31*2 39 C2 C3 195 PHTX DST Java Movie Uncertain Width; Partial Halo
    2004/12/01 18:54:00 331 56 608 791 795 19.5 ---- ---- 331 C2 C3 195 PHTX DST Java Movie
    2004/12/02 07:50:05 8 28 466 386 0 -15.7*1 5.7e+13 6.2e+28 10 C2 C3 195 PHTX DST Java Movie
    2004/12/02 08:50:05 38 3 483 534 966 33.7*1 ---- ---- 39 C2 C3 195 PHTX DST Java Movie
    2004/12/03 00:26:05 Halo (BA) 360 1216 1108 1136 -19.8 8.3e+15*2 6.1e+31*2 333 C2 C3 195 PHTX DST Java Movie MailLog1
    2004/12/03 19:27:20 86 17 222 302 890 31.7*1 ---- ---- 86 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2
    2004/12/07 01:50:05 58 6 521 514 429 -3.9*1 ---- ---- 60 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2
    2004/12/07 15:06:05 112 27 150 219 649 17.0*1 1.7e+14 1.9e+28 115 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2
    2004/12/08 05:26:06 163 7 561 628 1227 54.1*1 ---- ---- 161 C2 C3 195 PHTX DST Java Movie Poor Event; Only 3 points; Only C2
    2004/12/08 20:26:05 Halo (S) 360 611 459 0 -87.2*1 5.3e+15*2 9.9e+30*2 310 C2 C3 195 PHTX DST Java Movie MailLog1; Only 3 points; Only C2
    2004/12/11 15:40:20 94 34 521 449 180 -16.6*1 1.3e+14*2 1.8e+29*2 89 C2 C3 195 PHTX DST Java Movie
    2004/12/11 21:24:05 279 3 394 409 439 2.1 ---- ---- 277 C2 C3 195 PHTX DST Java Movie
    2004/12/11 22:36:05 311 38 243 305 1005 40.3*1 2.9e+13*2 8.6e+27*2 313 C2 C3 195 PHTX DST Java Movie Poor Event; Only 3 points; Only C2
    2004/12/12 02:00:05 218 5 476 625 1279 64.2*1 ---- ---- 221 C2 C3 PHTX DST Java Movie Poor Event
    2004/12/12 09:00:05 86 22 1036 842 0 -84.5 7.3e+13 3.9e+29 80 C2 C3 PHTX DST Java Movie
    2004/12/12 14:12:05 131 24 813 745 725 -10.5 3.6e+14 1.2e+30 122 C2 C3 PHTX DST Java Movie
    2004/12/12 21:24:05 312 79 682 664 620 -4.5 1.2e+15 2.7e+30 296 C2 C3 PHTX DST Java Movie
    2004/12/13 23:12:05 91 10 247 468 1865 145.4*1 ---- ---- 91 C2 C3 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2004/12/14 00:48:06 59 39 412 554 517 7.5 3.5e+15 3.0e+30 58 C2 C3 PHTX DST Java Movie
    2004/12/15 08:24:05 280 15 753 826 1099 30.8*1 ---- ---- 276 C2 C3 PHTX DST Java Movie
    2004/12/15 10:12:06 144 75 514 549 563 3.5 3.1e+15 4.1e+30 134 C2 C3 PHTX DST Java Movie
    2004/12/15 17:36:05 Halo (BA) 360 621 537 502 -11.1*1 2.0e+15*2 3.8e+30*2 1 C2 C3 PHTX DST Java Movie MailLog1
    2004/12/15 23:48:05 263 16 537 604 619 6.6 ---- ---- 261 C2 C3 PHTX DST Java Movie
    2004/12/16 04:24:05 138 24 725 645 0 -56.0*1 6.0e+13 1.6e+29 132 C2 C3 PHTX DST Java Movie Only C2
    2004/12/17 14:48:05 340 5 648 --- --- --- ---- ---- 341 C2 C3 PHTX DST Java Movie Very Poor Event; Only 2 points; Only C2
    2004/12/18 09:36:05 57 61 311 409 744 27.9*1 7.7e+13 3.7e+28 56 C2 C3 PHTX DST Java Movie
    2004/12/18 10:24:05 272 72 499 483 446 -2.7 2.8e+15 3.5e+30 279 C2 C3 PHTX DST Java Movie
    2004/12/19 08:36:05 133 49 532 566 639 7.5 1.6e+14 2.3e+29 123 C2 C3 PHTX DST Java Movie
    2004/12/19 10:48:06 40 70 275 483 1319 71.8 2.0e+15 7.4e+29 48 C2 C3 PHTX DST Java Movie
    2004/12/20 00:36:05 324 5 441 499 1193 53.3*1 ---- ---- 321 C2 C3 PHTX DST Java Movie Only C2
    2004/12/20 01:12:06 108 15 455 86 0 -511.8*1 ---- ---- 104 C2 C3 PHTX DST Java Movie Poor Event; Only 3 points; Only C2
    2004/12/20 14:36:05 108 75 886 986 1252 53.7*1 1.4e+15*2 5.7e+30*2 118 C2 C3 PHTX DST Java Movie Only 3 points
    2004/12/24 05:24:05 120 86 312 308 271 -1.2 7.7e+14 3.7e+29 113 C2 C3 PHTX DST Java Movie
    2004/12/24 05:36:05 291 92 779 961 1336 58.0 4.4e+15 1.3e+31 302 C2 C3 PHTX DST Java Movie
    2004/12/24 16:24:05 248 33 181 277 427 8.9*1 1.0e+15 1.7e+29 249 C2 C3 PHTX DST Java Movie Poor Event
    2004/12/25 07:24:06 74 101 256 281 626 13.8 5.2e+14 1.7e+29 58 C2 C3 PHTX DST Java Movie Only C2
    2004/12/25 20:57:13 157 7 307 314 327 0.7 ---- ---- 159 C2 C3 PHTX DST Java Movie
    2004/12/25 22:12:05 333 40 113 58 0 -32.6*1 7.2e+13*2 4.6e+27*2 328 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2004/12/26 00:24:05 283 77 703 760 742 5.2 4.0e+15 9.8e+30 297 C2 C3 PHTX DST Java Movie
    2004/12/26 11:48:05 88 9 703 1063 2794 328.0*1 ---- ---- 86 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2004/12/26 13:12:05 240 61 199 204 362 3.8 9.6e+13 1.9e+28 248 C2 C3 PHTX DST Java Movie Only C2
    2004/12/26 17:00:05 134 5 677 582 0 -131.6*1 ---- ---- 132 C2 C3 PHTX DST Java Movie Poor Event; Only 3 points; Only C2
    2004/12/26 19:12:05 117 24 837 913 903 9.7 5.8e+14 2.0e+30 121 C2 C3 PHTX DST Java Movie
    2004/12/26 23:36:37 67 93 213 231 464 7.3 4.4e+14 9.9e+28 81 C2 C3 PHTX DST Java Movie Only C2
    2004/12/27 07:12:05 232 13 713 883 1361 64.5*1 ---- ---- 239 C2 C3 PHTX DST Java Movie Poor Event
    2004/12/27 14:24:05 255 23 414 325 0 -25.0 1.4e+14 1.2e+29 260 C2 C3 PHTX DST Java Movie
    2004/12/27 21:12:08 249 34 326 252 0 -41.2 1.2e+14 6.5e+28 255 C2 C3 PHTX DST Java Movie Only C2
    2004/12/27 23:12:05 236 45 322 320 301 -0.6 3.4e+14 1.8e+29 246 C2 C3 PHTX DST Java Movie Only C2
    2004/12/28 00:36:06 224 70 358 264 0 -15.9 7.5e+14 4.8e+29 234 C2 C3 195 PHTX DST Java Movie
    2004/12/28 01:48:05 228 66 360 282 0 -17.0*1 6.1e+14 4.0e+29 238 C2 C3 195 PHTX DST Java Movie
    2004/12/28 02:48:05 102 44 757 774 816 4.9*1 2.7e+14 7.8e+29 99 C2 C3 195 PHTX DST Java Movie
    2004/12/28 03:48:05 247 23 487 543 827 20.7 9.6e+13 1.1e+29 249 C2 C3 195 PHTX DST Java Movie
    2004/12/28 06:36:05 235 56 414 312 0 -10.7 1.6e+15 1.4e+30 238 C2 C3 195 PHTX DST Java Movie
    2004/12/28 09:48:05 226 65 487 391 251 -11.8 1.9e+15 2.3e+30 233 C2 C3 195 PHTX DST Java Movie
    2004/12/28 13:12:05 235 57 600 483 0 -43.2 3.7e+14 6.6e+29 240 C2 C3 195 PHTX DST Java Movie
    2004/12/28 16:12:05 227 73 553 533 523 -2.3 4.2e+14 6.5e+29 235 C2 C3 195 PHTX DST Java Movie
    2004/12/28 18:12:05 75 110 350 486 452 6.5 4.7e+15 2.9e+30 92 C2 C3 195 PHTX DST Java Movie
    2004/12/28 21:04:13 242 58 498 503 501 0.4 5.9e+14 7.3e+29 243 C2 C3 195 PHTX DST Java Movie
    2004/12/29 01:57:05 235 7 640 680 838 14.7 ---- ---- 233 C2 C3 195 PHTX DST Java Movie
    2004/12/29 03:21:06 222 34 579 382 0 -24.7 5.0e+14 8.3e+29 232 C2 C3 195 PHTX DST Java Movie
    2004/12/29 06:21:07 227 41 553 514 518 -3.7 2.1e+14 3.2e+29 233 C2 C3 195 PHTX DST Java Movie
    2004/12/29 07:45:06 103 24 305 419 1149 53.2*1 2.1e+14 9.8e+28 102 C2 C3 195 PHTX DST Java Movie Only C2
    2004/12/29 09:21:05 105 36 345 399 440 4.6 1.9e+15 1.1e+30 103 C2 C3 195 PHTX DST Java Movie
    2004/12/29 10:57:05 227 32 649 515 0 -28.7 1.1e+14 2.4e+29 233 C2 C3 195 PHTX DST Java Movie
    2004/12/29 16:45:05 239 12 607 479 440 -15.2 ---- ---- 243 C2 C3 195 PHTX DST Java Movie
    2004/12/29 16:45:05 71 140 774 602 703 -17.2 9.4e+15*2 2.8e+31*2 79 C2 C3 195 PHTX DST Java Movie Partial Halo
    2004/12/29 19:45:05 244 30 550 520 485 -4.3 2.7e+14 4.1e+29 241 C2 C3 195 PHTX DST Java Movie
    2004/12/30 00:45:05 238 27 398 264 0 -41.2*1 4.7e+12 3.7e+27 239 C2 C3 195 PHTX DST Java Movie Poor Event
    2004/12/30 07:57:05 266 8 579 552 212 -13.4*1 ---- ---- 266 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2004/12/30 10:57:06 72 >176 1247 1334 1312 15.7 5.1e+15*2 4.0e+31*2 91 C2 C3 195 PHTX DST Java Movie Uncertain Width; Partial Halo
    2004/12/30 17:45:05 87 54 231 282 489 8.4*1 8.0e+14 2.1e+29 92 C2 C3 195 PHTX DST Java Movie
    2004/12/30 22:30:05 Halo (BA) 360 1035 1031 1032 -0.6 ---- ---- 82 C2 C3 195 PHTX DST Java Movie MailLog1
    2004/12/31 15:30:05 61 143 802 735 752 -7.8 4.2e+15*2 1.3e+31*2 87 C2 C3 195 PHTX DST Java Movie Partial Halo
    2004/12/31 17:06:05 277 116 293 273 0 -4.3*1 1.6e+14 7.0e+28 279 C2 C3 195 PHTX DST Java Movie
    2004/12/31 22:30:05 228 28 511 457 0 -26.0 1.8e+14 2.3e+29 231 C2 C3 195 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).