• 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
    1998/02/01 20:27:10 78 63 270 365 456 8.1*1 9.9e+14 3.6e+29 75 C2 C3 195 SXT PHTX DST Java Movie
    1998/02/01 22:37:45 244 30 450 539 817 22.6*1 ---- ---- 242 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only 3 points
    1998/02/02 07:34:56 294 48 314 403 431 5.3*1 7.8e+14 3.9e+29 305 C2 C3 195 SXT PHTX DST Java Movie
    1998/02/02 15:02:01 73 41 348 358 354 0.5 2.3e+15 1.4e+30 83 C2 C3 195 SXT PHTX DST Java Movie
    1998/02/02 16:27:05 312 9 775 865 981 22.0*1 ---- ---- 306 C2 C3 195 SXT PHTX DST Java Movie
    1998/02/02 18:27:05 72 55 467 535 573 7.2 1.4e+15 1.5e+30 69 C2 C3 195 SXT PHTX DST Java Movie
    1998/02/03 06:31:36 68 48 401 428 473 3.8*1 3.4e+13 2.8e+28 77 C2 C3 195 SXT PHTX DST Java Movie
    1998/02/03 08:36:50 270 76 487 457 466 -1.9 1.7e+15 2.1e+30 285 C2 C3 195 SXT PHTX DST Java Movie
    1998/02/03 15:40:12 64 30 124 108 0 -4.8*1 ---- ---- 70 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only C2
    1998/02/03 21:57:18 122 106 238 241 240 0.1 4.3e+14 1.2e+29 115 C2 C3 195 SXT PHTX DST Java Movie
    1998/02/04 17:02:49 289 95 320 463 404 5.9 7.9e+15 4.0e+30 286 C2 C3 195 SXT PHTX DST Java Movie
    1998/02/06 02:55:05 285 57 445 301 0 -21.6*1 1.5e+14 1.5e+29 292 C2 C3 195 SXT PHTX DST Java Movie
    1998/02/06 07:28:58 78 27 490 405 0 -17.8*1 8.3e+13 1.0e+29 79 C2 C3 195 SXT PHTX DST Java Movie
    1998/02/06 09:27:05 87 5 460 355 0 -51.4*1 ---- ---- 89 C2 C3 195 SXT PHTX DST Java Movie Only 3 points
    1998/02/06 15:08:06 243 116 186 157 0 -2.4*1 9.7e+14 1.7e+29 260 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1998/02/07 06:55:07 62 13 261 410 655 17.3 ---- ---- 62 C2 C3 195 SXT PHTX DST Java Movie
    1998/02/07 07:28:29 255 47 410 292 171 -10.2*1 7.4e+14 6.2e+29 259 C2 C3 195 SXT PHTX DST Java Movie
    1998/02/07 14:55:05 57 70 210 190 153 -1.2 6.2e+14 1.4e+29 56 C2 C3 195 SXT PHTX DST Java Movie
    1998/02/07 18:27:05 230 16 297 288 262 -1.1*1 1.7e+14 7.6e+28 230 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1998/02/07 23:55:05 72 9 439 469 549 5.7*1 ---- ---- 85 C2 C3 195 SXT PHTX DST Java Movie Only 3 points
    1998/02/08 00:27:06 271 14 245 409 1219 62.3*1 ---- ---- 273 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only C2
    1998/02/08 08:55:06 67 15 858 840 821 -3.9 7.4e+13 2.7e+29 71 C2 C3 195 SXT PHTX DST Java Movie
    1998/02/09 03:27:06 73 18 514 447 0 -17.8*1 1.5e+13*2 2.0e+28*2 75 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1998/02/09 07:28:18 73 12 563 535 483 -4.9 ---- ---- 80 C2 C3 195 SXT PHTX DST Java Movie
    1998/02/09 23:27:28 112 50 216 271 437 7.3*1 ---- ---- 111 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1998/02/10 01:30:56 81 113 244 329 418 6.1*1 ---- ---- 78 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1998/02/10 05:55:05 112 56 190 278 411 6.7*1 ---- ---- 111 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2006/01/12; Poor Event
    1998/02/10 07:55:07 25 66 104 --- --- --- ---- ---- 29 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2006/01/12; Poor Event; Only 2 points; Only C2
    1998/02/11 03:08:05 272 48 374 395 458 3.8*1 2.0e+14 1.4e+29 272 C2 C3 195 SXT PHTX DST Java Movie
    1998/02/11 15:55:06 300 107 135 156 215 1.5*1 2.6e+14 2.4e+28 302 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1998/02/12 02:27:31 295 9 142 158 196 0.9 ---- ---- 297 C2 C3 195 SXT PHTX DST Java Movie
    1998/02/12 14:27:30 274 60 390 224 0 -14.6 4.7e+14 3.6e+29 284 C2 C3 195 SXT PHTX DST Java Movie
    1998/02/12 15:55:05 16 129 82 153 212 1.8*1 ---- ---- 28 C2 C3 195 SXT PHTX DST Java Movie Partial Halo
    1998/02/13 05:55:05 291 17 436 451 501 3.2*1 8.4e+13*2 8.0e+28*2 286 C2 C3 195 SXT PHTX DST Java Movie
    1998/02/13 17:27:32 99 48 169 101 0 -17.9*1 2.0e+14 2.8e+28 95 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1998/02/14 06:55:05 137 206 123 138 166 0.7*1 ---- ---- 164 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Partial Halo
    1998/02/14 07:55:05 134 30 237 268 446 6.6*1 ---- ---- 135 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2006/03/31; Poor Event
    1998/02/14 10:27:29 130 29 220 314 934 35.5*1 ---- ---- 129 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2006/03/31; Poor Event; Only C2
    1998/02/14 10:55:05 280 35 450 431 359 -4.0*1 9.1e+13 9.2e+28 281 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1998/02/14 19:29:57 142 >62 187 190 212 0.5*1 ---- ---- 139 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2006/03/31; Poor Event; Only C2; Uncertain Width
    1998/02/15 01:28:18 290 18 144 241 330 4.7*1 ---- ---- 290 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1998/02/15 10:27:05 322 38 400 304 0 -36.8*1 6.4e+13*2 5.1e+28*2 327 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only C2
    1998/02/15 17:27:05 117 57 183 204 292 2.5*1 2.1e+13 3.5e+27 120 C2 C3 195 SXT PHTX DST Java Movie
    1998/02/15 23:55:06 127 9 227 156 0 -24.4*1 ---- ---- 121 C2 C3 195 SXT PHTX DST Java Movie Only 3 points
    1998/02/16 00:55:05 41 6 466 460 418 -2.1*1 ---- ---- 46 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2006/03/31; Poor Event
    1998/02/17 05:08:08 106 65 207 213 240 0.7 8.9e+14 1.9e+29 119 C2 C3 195 SXT PHTX DST Java Movie
    1998/02/17 07:55:05 74 44 477 516 501 2.4 2.3e+15 2.7e+30 82 C2 C3 195 SXT PHTX DST Java Movie
    1998/02/17 15:27:05 280 34 224 317 454 8.1*1 1.8e+13 4.4e+27 285 C2 C3 195 SXT PHTX DST Java Movie
    1998/02/18 02:27:05 63 22 459 468 474 1.0*1 1.8e+14*2 1.9e+29*2 63 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1998/02/18 02:27:05 93 33 351 293 0 -7.2*1 1.7e+14 1.1e+29 91 C2 C3 195 SXT PHTX DST Java Movie
    1998/02/18 07:28:30 45 6 587 572 521 -4.1*1 ---- ---- 52 C2 C3 195 SXT PHTX DST Java Movie
    1998/02/18 09:27:05 283 69 266 255 244 -0.7*1 6.2e+14 2.2e+29 268 C2 C3 195 SXT PHTX DST Java Movie
    1998/02/18 14:55:05 47 16 545 717 852 26.2*1 ---- ---- 55 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1998/02/19 19:28:30 297 13 350 417 504 7.3*1 2.2e+14 1.4e+29 291 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1998/02/19 21:55:05 108 24 449 471 496 2.7*1 2.9e+14 2.9e+29 106 C2 C3 195 SXT PHTX DST Java Movie
    1998/02/20 01:55:05 94 45 191 197 236 0.9*1 ---- ---- 105 C2 C3 195 SXT PHTX DST Java Movie
    1998/02/20 08:55:05 93 74 519 608 741 15.6*1 7.3e+14 9.9e+29 103 C2 C3 195 SXT PHTX DST Java Movie
    1998/02/20 09:55:05 148 46 510