• 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
    1999/03/01 04:54:05 9 10 627 505 91 -24.0*1 1.2e+14 2.4e+29 14 C2 C3 SXT PHTX DST Java Movie Poor Event
    1999/03/01 07:26:43 288 12 361 338 300 -2.3 ---- ---- 286 C2 C3 SXT PHTX DST Java Movie Newly inserted on 2006/01/13
    1999/03/01 12:54:05 129 17 747 1304 2959 368.8*1 ---- ---- 129 C2 C3 SXT PHTX DST Java Movie Newly inserted on 2006/01/13; Poor Event; Only 3 points
    1999/03/01 20:26:05 56 40 417 --- --- --- ---- ---- 60 C2 C3 SXT PHTX DST Java Movie Newly inserted on 2006/01/13; Poor Event; Only 2 points; Only C2
    1999/03/02 02:26:05 129 8 411 483 600 10.3*1 ---- ---- 125 C2 C3 SXT PHTX DST Java Movie
    1999/03/02 15:26:06 160 63 686 758 819 12.7*1 ---- ---- 145 C2 C3 SXT PHTX DST Java Movie Difficult to measure the width.
    1999/03/07 03:26:06 110 101 306 305 304 -0.1*1 1.0e+15 4.8e+29 86 C2 C3 195 SXT PHTX DST Java Movie
    1999/03/07 05:54:06 292 31 835 883 879 7.0 1.1e+15 3.8e+30 286 C2 C3 195 SXT PHTX DST Java Movie
    1999/03/07 08:54:05 280 89 255 236 0 -3.2*1 4.9e+14 1.6e+29 264 C2 C3 195 SXT PHTX DST Java Movie Difficult to measure the width.
    1999/03/07 23:54:05 238 14 586 370 0 -46.1 1.5e+14 2.6e+29 241 C2 C3 195 SXT PHTX DST Java Movie
    1999/03/08 01:26:54 241 16 1015 952 754 -27.5*1 1.6e+14*2 8.1e+29*2 245 C2 C3 195 SXT PHTX DST Java Movie
    1999/03/08 01:26:54 102 60 536 681 1080 43.4*1 5.5e+14 8.0e+29 117 C2 C3 195 SXT PHTX DST Java Movie
    1999/03/08 06:54:05 115 80 664 622 504 -10.0 2.6e+15 5.7e+30 124 C2 C3 195 SXT PHTX DST Java Movie
    1999/03/08 18:26:05 253 9 876 903 927 6.5*1 ---- ---- 252 C2 C3 195 SXT PHTX DST Java Movie
    1999/03/09 02:26:06 241 14 532 620 895 25.6 1.4e+14 2.0e+29 246 C2 C3 195 SXT PHTX DST Java Movie
    1999/03/09 10:54:05 248 14 683 674 647 -2.6*1 8.6e+13 2.0e+29 252 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/03/09 19:26:54 122 62 433 445 466 1.7 7.2e+14 6.8e+29 130 C2 C3 195 SXT PHTX DST Java Movie
    1999/03/10 03:26:05 176 76 631 253 0 -255.3*1 ---- ---- 173 C2 C3 195 SXT PHTX DST Java Movie Only 3 points
    1999/03/10 06:26:05 214 17 393 392 390 -0.1 2.5e+14 1.9e+29 218 C2 C3 195 SXT PHTX DST Java Movie
    1999/03/10 09:54:05 93 14 720 685 669 -5.0 1.4e+14 3.6e+29 105 C2 C3 195 SXT PHTX DST Java Movie
    1999/03/10 14:54:05 244 14 413 75 0 -98.7*1 6.8e+13 5.8e+28 246 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event
    1999/03/10 21:03:16 25 19 484 --- --- --- ---- ---- 16 C2 C3 195 SXT PHTX DST Java Movie Only 2 points; Only C3
    1999/03/10 23:26:06 279 36 324 428 735 20.6 3.2e+14 1.7e+29 276 C2 C3 195 SXT PHTX DST Java Movie
    1999/03/11 00:54:05 279 34 319 360 519 8.3 ---- ---- 272 C2 C3 195 SXT PHTX DST Java Movie
    1999/03/11 07:26:50 294 12 881 1152 1395 66.7 3.1e+14 1.2e+30 292 C2 C3 195 SXT PHTX DST Java Movie
    1999/03/11 11:26:05 127 67 281 376 382 4.7 2.1e+15 8.4e+29 128 C2 C3 195 SXT PHTX DST Java Movie
    1999/03/11 14:24:07 54 17 936 878 885 -14.6*1 ---- ---- 63 C2 C3 195 SXT PHTX DST Java Movie Only 3 points; Only C3
    1999/03/11 19:32:56 205 136 242 410 344 4.6 2.0e+15*2 6.0e+29*2 248 C2 C3 195 SXT PHTX DST Java Movie Partial Halo
    1999/03/12 11:26:05 283 31 455 317 0 -25.1*1 3.5e+14 3.6e+29 287 C2 C3 195 SXT PHTX DST Java Movie
    1999/03/12 16:58:37 77 15 695 684 666 -2.4*1 2.5e+14*2 6.1e+29*2 87 C2 C3 195 SXT PHTX DST Java Movie
    1999/03/12 19:30:05 271 57 194 201 236 1.1*1 1.2e+14*2 2.2e+28*2 282 C2 C3 195 SXT PHTX DST Java Movie Difficutlt to measure the width; Only C3
    1999/03/12 19:30:05 191 58 240 170 0 -28.9*1 ---- ---- 205 C2 C3 195 SXT PHTX DST Java Movie Only 3 points; Only C3
    1999/03/12 23:22:48 12 20 510 649 964 43.4*1 2.7e+14*2 3.5e+29*2 10 C2 C3 195 SXT PHTX DST Java Movie Only C3
    1999/03/13 06:26:06 218 13 824 883 969 14.8 2.9e+14 9.8e+29 219 C2 C3 195 SXT PHTX DST Java Movie
    1999/03/13 06:54:05 255 27 580 435 0 -29.6 3.6e+14 6.1e+29 252 C2 C3 195 SXT PHTX DST Java Movie
    1999/03/13 11:26:05 89 19 545 724 1399 76.2*1 2.2e+14*2 3.3e+29*2 96 C2 C3 195 SXT PHTX DST Java Movie
    1999/03/13 23:54:05 127 96 348 394 452 4.7 2.3e+15 1.4e+30 142 C2 C3 195 SXT PHTX DST Java Movie Difficult to measure the width
    1999/03/14 00:54:05 83 78 274 414 494 9.3 2.4e+15 9.1e+29 81 C2 C3 195 SXT PHTX DST Java Movie C2 C3 Gap
    1999/03/14 04:26:05 347 10 545 534 483 -3.8*1 ---- ---- 342 C2 C3 195 SXT PHTX DST Java Movie Only 3 points; Only C3
    1999/03/14 06:54:05 51 62 305 246 0 -6.9 1.7e+14 7.8e+28 38 C2 C3 195 SXT PHTX DST Java Movie
    1999/03/14 11:54:05 342 9 572 612 715 9.7 ---- ---- 341 C2 C3 195 SXT PHTX DST Java Movie
    1999/03/14 12:26:05 268 48 292 303 329 1.2 4.8e+14 2.0e+29 258 C2 C3 195 SXT PHTX DST Java Movie
    1999/03/14 15:54:05 268 52 217 294 1010 42.0*1 ---- ---- 272 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only 3 points; Only C2
    1999/03/14 21:18:05 261 47 344 558 1031 50.1*1 4.6e+14 2.7e+29 257 C2 C3 195 SXT PHTX DST Java Movie
    1999/03/15 04:54:05 105 58 423 505 673 14.0 4.7e+14 4.2e+29 84 C2 C3 195 SXT PHTX DST Java Movie
    1999/03/15 04:54:05 120 151 345 493 783 24.3 ---- ---- 93 C2 C3 195 SXT PHTX DST Java Movie Partial Halo
    1999/03/15 07:26:52 115 >157 660 597 607 -6.6 1.9e+15*2 4.1e+30*2 78 C2 C3 195 SXT PHTX DST Java Movie Uncertain Width; Partial Halo
    1999/03/15 09:26:06 273 37 373 261 0 -21.3 9.0e+13 6.2e+28 274 C2 C3 195 SXT PHTX DST Java Movie
    1999/03/15 11:54:05 322 3 312 319 333 0.7*1 ---- ---- 325 C2 C3 195 SXT PHTX DST Java Movie
    1999/03/15 13:26:56 277 38 389 322 0 -17.3*1 2.0e+14 1.5e+29 278 C2 C3 195 SXT PHTX DST Java Movie
    1999/03/15 13:54:05 352 49 216 263 419 7.2 1.2e+14 2.8e+28 346 C2 C3 195 SXT PHTX DST Java Movie Difficult to measure the width; Only C3
    1999/03/15 21:35:12 228 59 253 303 394 5.0*1 1.9e+15 6.1e+29 227 C2 C3 195 SXT PHTX DST Java Movie
    1999/03/17 01:26:52 314 61 188 342 389 6.2 2.8e+15 4.9e+29 314 C2 C3 195 SXT PHTX DST Java Movie
    1999/03/17 04:26:05 14 31 173 229 500 10.2*1 ---- ---- 11 C2 C3 195 SXT PHTX DST Java Movie Difficult to measure the width; Very Poor Event; Only C2
    1999/03/17 07:26:50 68 72 431 600 546 9.4 5.0e+15 4.7e+30 73 C2 C3 195 SXT PHTX DST Java Movie
    1999/03/17 07:54:05 169 48 206 201 141 -1.0*1 2.9e+12 6.2e+26 168 C2 C3 195 SXT PHTX DST Java Movie Difficult to measure the width; Poor Event; Only C2
    1999/03/17 10:18:07 107 31 972 806 919 -23.3 1.4e+15 6.6e+30 104 C2 C3 195 SXT PHTX DST Java Movie Only C3
    1999/03/18 03:54:05 60 65 375 378 390 0.8 1.7e+15 1.2e+30 57 C2 C3 195