• 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
    1999/09/01 02:30:05 188 283 253 249 198 -1.2*1 ---- ---- 128 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only C2; Partial Halo
    1999/09/02 05:30:05 303 76 307 287 252 -1.9 2.1e+15 9.8e+29 319 C2 C3 195 SXT PHTX DST Java Movie
    1999/09/02 15:30:08 138 170 1068 1135 1098 8.6 ---- ---- 121 C2 C3 195 SXT PHTX DST Java Movie Partial Halo
    1999/09/02 16:30:05 182 110 367 447 412 3.6 7.4e+15 5.0e+30 156 C2 C3 195 SXT PHTX DST Java Movie
    1999/09/03 00:06:06 184 175 512 501 507 -0.7 ---- ---- 182 C2 C3 195 SXT PHTX DST Java Movie Partial Halo
    1999/09/03 17:54:05 282 82 390 365 339 -2.4 1.8e+15 1.4e+30 289 C2 C3 195 SXT PHTX DST Java Movie
    1999/09/04 19:31:20 115 94 460 606 776 20.8 1.2e+15 1.2e+30 102 C2 C3 195 SXT PHTX DST Java Movie
    1999/09/05 03:54:28 251 71 465 549 549 6.3 1.6e+15 1.7e+30 225 C2 C3 195 SXT PHTX DST Java Movie
    1999/09/05 14:30:05 241 55 271 310 401 4.6*1 1.6e+15 5.8e+29 232 C2 C3 195 SXT PHTX DST Java Movie
    1999/09/05 16:54:05 6 68 278 266 178 -2.2*1 2.7e+14 1.0e+29 1 C2 C3 195 SXT PHTX DST Java Movie
    1999/09/07 04:30:05 288 38 799 723 729 -11.7*1 9.5e+14 3.0e+30 288 C2 C3 195 SXT PHTX DST Java Movie
    1999/09/07 07:31:20 245 62 629 634 632 0.3 2.6e+15 5.1e+30 241 C2 C3 195 SXT PHTX DST Java Movie
    1999/09/07 11:54:05 25 41 431 595 649 13.8*1 1.1e+15 1.0e+30 25 C2 C3 195 SXT PHTX DST Java Movie
    1999/09/07 13:54:27 303 69 573 555 545 -2.1 1.6e+15 2.5e+30 308 C2 C3 195 SXT PHTX DST Java Movie
    1999/09/07 22:02:28 22 42 265 263 259 -0.2*1 1.8e+16 6.4e+30 30 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/09/07 22:02:28 243 44 589 519 435 -10.3*1 8.0e+15 1.4e+31 246 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/09/07 22:34:00 289 98 249 235 123 -2.3*1 2.8e+16 8.6e+30 293 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/09/08 11:54:05 222 98 490 501 498 0.7 1.5e+16 1.8e+31 233 C2 C3 195 SXT PHTX DST Java Movie
    1999/09/08 14:08:04 69 113 412 369 118 -9.4*1 1.7e+15*2 1.4e+30*2 78 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/09/09 08:30:05 234 38 419 410 377 -1.7*1 1.8e+14 1.6e+29 239 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/09/09 14:06:05 313 73 1025 1115 1218 27.6*1 5.0e+14*2 2.6e+30*2 331 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/09/09 18:24:39 0 82 754 620 668 -19.3*1 1.2e+15 3.3e+30 342 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only C3
    1999/09/09 19:52:49 304 73 603 649 687 7.6*1 8.0e+14 1.4e+30 292 C2 C3 195 SXT PHTX DST Java Movie
    1999/09/09 20:30:05 244 41 486 459 461 -2.2 3.4e+15 4.0e+30 234 C2 C3 195 SXT PHTX DST Java Movie
    1999/09/09 21:54:05 345 103 1071 962 1020 -14.9 1.0e+15 6.0e+30 353 C2 C3 195 SXT PHTX DST Java Movie
    1999/09/10 02:30:05 244 47 530 516 515 -1.4 1.2e+15 1.7e+30 251 C2 C3 195 SXT PHTX DST Java Movie
    1999/09/10 06:30:05 339 26 772 729 658 -10.6 7.7e+14 2.3e+30 353 C2 C3 195 SXT PHTX DST Java Movie
    1999/09/10 07:54:05 18 125 1467 1335 1406 -30.2 9.7e+15*2 1.0e+32*2 1 C2 C3 195 SXT PHTX DST Java Movie Partial Halo
    1999/09/10 17:30:05 53 61 600 474 370 -17.9 1.6e+15 2.8e+30 25 C2 C3 195 SXT PHTX DST Java Movie
    1999/09/11 01:54:05 246 145 266 295 294 1.2 4.6e+15*2 1.6e+30*2 238 C2 C3 195 SXT PHTX DST Java Movie Partial Halo
    1999/09/11 21:54:05 35 120 1680 1591 1653 -20.2 2.6e+15 3.7e+31 13 C2 C3 195 SXT PHTX DST Java Movie
    1999/09/12 00:54:05 271 121 732 838 786 9.2 3.5e+15*2 9.5e+30*2 271 C2 C3 195 SXT PHTX DST Java Movie Partial Halo
    1999/09/12 02:06:05 11 17 926 974 979 8.1*1 8.5e+13 3.6e+29 12 C2 C3 195 SXT PHTX DST Java Movie
    1999/09/12 04:30:05 26 109 1296 843 1120 -78.6 3.1e+15 2.6e+31 20 C2 C3 195 SXT PHTX DST Java Movie
    1999/09/12 06:54:05 347 22 356 345 305 -1.7*1 2.4e+14 1.5e+29 340 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/09/12 15:30:08 16 11 837 671 630 -27.8*1 2.2e+14 7.8e+29 16 C2 C3 195 SXT PHTX DST Java Movie
    1999/09/12 15:30:08 347 25 487 457 460 -2.6 3.6e+14 4.3e+29 353 C2 C3 195 SXT PHTX DST Java Movie
    1999/09/12 17:54:06 42 71 967 846 912 -17.0 7.0e+14 3.3e+30 19 C2 C3 195 SXT PHTX DST Java Movie
    1999/09/13 01:31:19 345 30 488 499 497 0.9*1 5.1e+14 6.1e+29 349 C2 C3 195 SXT PHTX DST Java Movie
    1999/09/13 01:54:05 26 9 740 533 365 -32.6*1 ---- ---- 26 C2 C3 195 SXT PHTX DST Java Movie
    1999/09/13 02:30:05 343 33 652 601 520 -10.1*1 3.3e+14 7.0e+29 354 C2 C3 195 SXT PHTX DST Java Movie
    1999/09/13 07:31:16 342 30 585 625 627 4.3 2.1e+15 3.6e+30 347 C2 C3 195 SXT PHTX DST Java Movie
    1999/09/13 08:06:05 49 60 998 799 826 -32.5 6.2e+14 3.1e+30 22 C2 C3 195 SXT PHTX DST Java Movie
    1999/09/13 09:30:09 0 182 898 693 836 -23.0 ---- ---- 346 C2 C3 195 SXT PHTX DST Java Movie Partial Halo
    1999/09/13 14:30:05 348 38 773 706 742 -6.7 3.0e+14 8.8e+29 0 C2 C3 195 SXT PHTX DST Java Movie
    1999/09/13 17:31:07 109 184 444 366 260 -8.7*1 ---- ---- 62 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Partial Halo
    1999/09/14 06:30:05 301 122 761 1002 887 21.0 5.2e+15*2 1.5e+31*2 313 C2 C3 195 SXT PHTX DST Java Movie Partial Halo
    1999/09/14 12:06:05 56 67 819 629 775 -15.8 6.4e+14 2.1e+30 35 C2 C3 195 SXT PHTX DST Java Movie
    1999/09/14 15:30:08 256 29 733 681 667 -9.1*1 7.5e+14 2.0e+30 256 C2 C3 195 SXT PHTX DST Java Movie
    1999/09/14 16:54:05 35 10 635 559 566 -7.6*1 2.9e+13 5.9e+28 36 C2 C3 195 SXT PHTX DST Java Movie
    1999/09/14 21:30:08 64 72 784 664 744 -12.6 2.0e+15 6.2e+30 48 C2 C3 195 SXT PHTX DST Java Movie
    1999/09/15 05:06:05 277 14 518 502 501 -1.4*1 7.3e+13 9.8e+28 276 C2 C3 195 SXT PHTX DST Java Movie
    1999/09/15 06:54:05 261 20 685 723 715 4.1*1 5.1e+14 1.2e+30 264 C2 C3 195 SXT PHTX DST Java Movie
    1999/09/15 09:54:06 43 29 682 556 614 -11.6*1 5.7e+14 1.3e+30 35 C2 C3 195 SXT PHTX DST Java Movie
    1999/09/15 14:30:05 67 82 836 735 725 -16.0 3.2e+15 1.1e+31 37 C2 C3 195 SXT PHTX DST Java Movie
    1999/09/16 00:06:05 49 52 897 829 828 -11.8*1 3.3e+14 1.3e+30 40 C2 C3 195 SXT PHTX DST Java Movie
    1999/09/16 04:30:05 194 82 189 235 439 7.7*1 4.7e+14 8.4e+28 184 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/09/16 08:54:15 51 47 784 635