• 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
    1999/10/06 01:26:48 123 81 234 440 402 7.3 9.5e+15 2.6e+30 123 C2 C3 195 SXT PHTX DST Java Movie
    1999/10/06 10:06:05 16 34 297 283 257 -1.3*1 4.1e+14 1.8e+29 10 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/10/07 01:50:05 96 64 269 268 251 -0.5*1 ---- ---- 101 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/10/07 08:26:05 109 27 769 848 1007 23.2*1 3.2e+14 9.6e+29 108 C2 C3 195 SXT PHTX DST Java Movie
    1999/10/07 17:26:05 52 91 300 306 313 0.5*1 4.3e+15 1.9e+30 19 C2 C3 195 SXT PHTX DST Java Movie
    1999/10/07 21:26:08 48 74 251 401 330 4.0 2.3e+15 7.2e+29 35 C2 C3 195 SXT PHTX DST Java Movie
    1999/10/08 19:25:06 28 27 671 595 603 -11.2*1 5.2e+14 1.2e+30 18 C2 C3 195 SXT PHTX DST Java Movie Only C3
    1999/10/09 02:50:08 173 58 604 603 601 -0.2*1 1.3e+14*2 2.3e+29*2 186 C2 C3 SXT PHTX DST Java Movie Poor Event
    1999/10/09 08:50:08 87 6 593 629 730 9.9*1 ---- ---- 83 C2 C3 SXT PHTX DST Java Movie Poor Event
    1999/10/10 10:00:08 67 15 784 1088 1913 158.0*1 ---- ---- 65 C2 C3 SXT PHTX DST Java Movie Poor Event; Only 3 points
    1999/10/10 12:20:09 86 14 383 269 0 -31.4*1 2.5e+13*2 1.8e+28*2 76 C2 C3 SXT PHTX DST Java Movie Poor Event
    1999/10/10 22:20:08 81 35 876 790 804 -11.8*1 5.7e+14 2.2e+30 72 C2 C3 SXT PHTX DST Java Movie Poor Event
    1999/10/11 05:20:10 266 80 192 207 328 3.2*1 7.8e+14 1.4e+29 264 C2 C3 SXT PHTX DST Java Movie Poor Event; Only C2
    1999/10/11 16:50:09 54 46 188 196 296 2.3*1 4.4e+14 7.8e+28 46 C2 C3 SXT PHTX DST Java Movie Poor Event; Only C2
    1999/10/11 20:50:08 301 9 779 796 848 6.4*1 ---- ---- 304 C2 C3 SXT PHTX DST Java Movie Poor Event; Only 3 points
    1999/10/11 22:00:05 256 99 448 406 42 -9.9*1 3.6e+14 3.6e+29 274 C2 C3 SXT PHTX DST Java Movie Poor Event
    1999/10/12 00:00:05 97 43 485 462 467 -1.8*1 1.0e+15 1.2e+30 91 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/10/12 09:06:05 95 28 606 523 0 -21.8*1 2.5e+14 4.6e+29 88 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/10/12 13:20:05 76 81 654 529 423 -17.0 4.4e+15 9.4e+30 106 C2 C3 195 SXT PHTX DST Java Movie
    1999/10/12 19:18:39 125 202 365 437 407 3.1 ---- ---- 124 C2 C3 195 SXT PHTX DST Java Movie Partial Halo
    1999/10/12 20:02:25 279 65 339 331 325 -0.6*1 5.2e+14 3.0e+29 275 C2 C3 195 SXT PHTX DST Java Movie
    1999/10/13 09:50:05 4 109 577 696 643 7.8 6.5e+15 1.1e+31 14 C2 C3 195 SXT PHTX DST Java Movie
    1999/10/13 21:06:46 247 8 926 900 867 -6.7*1 ---- ---- 243 C2 C3 195 SXT PHTX DST Java Movie
    1999/10/14 02:50:05 95 41 613 684 890 20.5*1 3.5e+14 6.6e+29 88 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/10/14 09:26:05 Halo (OA) 360 1250 1136 1187 -21.2 ---- ---- 61 C2 C3 195 SXT PHTX DST Java Movie
    1999/10/14 12:50:05 253 4 564 536 442 -6.5*1 ---- ---- 252 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/10/14 15:26:06 289 65 308 352 368 2.9 1.7e+15 8.3e+29 276 C2 C3 195 SXT PHTX DST Java Movie
    1999/10/16 03:06:05 273 129 241 268 360 3.5*1 1.2e+15*2 3.4e+29*2 316 C2 C3 195 SXT PHTX DST Java Movie Partial Halo
    1999/10/16 04:26:05 86 61 334 276 0 -8.3*1 2.9e+14 1.6e+29 82 C2 C3 195 SXT PHTX DST Java Movie
    1999/10/16 23:06:59 282 130 352 247 217 -6.3 4.2e+15*2 2.6e+30*2 303 C2 C3 195 SXT PHTX DST Java Movie Partial Halo
    1999/10/17 17:50:05 299 13 826 1006 1292 55.9*1 1.8e+14 6.0e+29 305 C2 C3 195 SXT PHTX DST Java Movie
    1999/10/17 17:50:05 111 41 542 619 708 12.2*1 5.3e+14 7.8e+29 117 C2 C3 195 SXT PHTX DST Java Movie
    1999/10/17 19:26:05 335 44 302 255 0 -7.8*1 2.6e+14 1.2e+29 337 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/10/18 00:06:06 40 87 247 223 95 -2.7*1 3.4e+15 1.0e+30 40 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/10/18 00:06:06 206 240 144 263 290 3.5*1 ---- ---- 184 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2006/09/20; Partial Halo
    1999/10/18 02:06:05 298 26 1081 1021 979 -15.1*1 ---- ---- 298 C2 C3 195 SXT PHTX DST Java Movie
    1999/10/18 05:26:05 26 84 463 521 495 3.6 ---- ---- 29 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2006/09/20
    1999/10/18 14:26:05 299 19 919 712 682 -34.1*1 2.3e+14 9.7e+29 307 C2 C3 195 SXT PHTX DST Java Movie
    1999/10/18 19:50:06 227 75 457 552 569 8.0*1 2.6e+15 2.7e+30 239 C2 C3 195 SXT PHTX DST Java Movie
    1999/10/19 05:50:05 87 125 753 677 734 -5.9 1.5e+15*2 4.2e+30*2 108 C2 C3 195 SXT PHTX DST Java Movie Partial Halo
    1999/10/19 10:26:05 119 55 491 725 601 12.8 2.1e+15 2.5e+30 118 C2 C3 195 SXT PHTX DST Java Movie
    1999/10/20 00:26:05 115 25 701 782 739 7.2 4.0e+14 9.9e+29 105 C2 C3 195 SXT PHTX DST Java Movie
    1999/10/20 06:26:05 283 105 327 322 310 -0.6 ---- ---- 287 C2 C3 195 SXT PHTX DST Java Movie
    1999/10/20 09:50:05 93 51 486 474 429 -2.7*1 7.6e+14 9.0e+29 113 C2 C3 195 SXT PHTX DST Java Movie
    1999/10/21 05:06:05 99 41 363 306 211 -5.3*1 3.3e+14 2.2e+29 109 C2 C3 195 SXT PHTX DST Java Movie
    1999/10/21 09:50:05 94 60 381 362 373 -0.8*1 6.2e+14 4.5e+29 116 C2 C3 195 SXT PHTX DST Java Movie
    1999/10/21 13:50:05 324 10 530 347 0 -25.2 ---- ---- 330 C2 C3 195 SXT PHTX DST Java Movie
    1999/10/21 14:26:05 303 30 157 127 0 -3.0 ---- ---- 298 C2 C3 195 SXT PHTX DST Java Movie
    1999/10/22 04:26:05 285 92 359 292 0 -19.7*1 4.4e+14 2.9e+29 296 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/10/22 08:50:23 300 73 368 386 378 0.8 3.5e+15 2.4e+30 300 C2 C3 195 SXT PHTX DST Java Movie
    1999/10/22 13:26:47 305 118 478 393 440 -5.8 3.7e+15 4.3e+30 290 C2 C3 195 SXT PHTX DST Java Movie
    1999/10/22 19:26:45 290 108 797 730 669 -13.0 2.1e+15 6.6e+30 291 C2 C3 195 SXT PHTX DST Java Movie
    1999/10/23 01:26:51 212 34 405 364 253 -6.1*1 2.4e+14 2.0e+29 200 C2 C3 195 SXT PHTX DST Java Movie
    1999/10/23 01:26:51 305 143 1012 858 966 -19.2 4.2e+15*2 2.2e+31*2 303 C2 C3 195 SXT PHTX DST Java Movie Partial Halo
    1999/10/23 09:26:07 302 88 371 341 85 -6.5*1 4.7e+14 3.2e+29 303 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/10/23 13:26:54 287 86 283 335 476 7.4*1 1.9e+15 7.5e+29 291 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/10/23 17:06:05 278 52 205 154 0 -14.2*1 3.1e+14 6.5e+28 280 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only C2
    1999/10/24 03:26:11 319 34 480 403 0 -24.0*1 2.5e+14*2 2.9e+29*2 311 C2 C3 195 SXT