• 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
    1999/06/01 13:25:14 307 105 300 392 477 7.6 5.6e+15 2.5e+30 313 C2 C3 195 SXT PHTX DST Java Movie
    1999/06/01 19:37:35 Halo (OA) 360 1772 1777 1773 1.8*1 ---- ---- 359 C2 C3 195 SXT PHTX DST Java Movie Only C3
    1999/06/02 04:50:05 329 39 422 449 511 4.4 2.2e+14 2.0e+29 334 C2 C3 195 SXT PHTX DST Java Movie
    1999/06/02 05:26:05 275 40 289 312 378 3.1*1 3.2e+14 1.3e+29 273 C2 C3 195 SXT PHTX DST Java Movie
    1999/06/02 07:50:05 3 28 336 548 722 23.7*1 3.0e+14 1.7e+29 5 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/06/02 11:06:05 48 62 440 434 427 -0.7 9.7e+14 9.4e+29 39 C2 C3 195 SXT PHTX DST Java Movie
    1999/06/02 21:26:09 283 160 874 977 935 11.5 ---- ---- 276 C2 C3 195 SXT PHTX DST Java Movie Partial Halo
    1999/06/03 03:06:05 283 12 562 643 721 12.0 2.5e+14 3.9e+29 286 C2 C3 195 SXT PHTX DST Java Movie
    1999/06/03 07:26:52 88 5 521 529 564 2.2*1 ---- ---- 82 C2 C3 195 SXT PHTX DST Java Movie
    1999/06/03 09:06:05 249 25 521 534 587 3.8*1 2.7e+14 3.7e+29 252 C2 C3 195 SXT PHTX DST Java Movie
    1999/06/03 13:26:53 282 32 847 711 308 -47.4*1 6.5e+14*2 2.3e+30*2 287 C2 C3 195 SXT PHTX DST Java Movie 1; Poor Event; Only C3
    1999/06/03 16:50:05 314 34 557 416 0 -41.8*1 3.4e+14 5.3e+29 324 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/06/04 00:50:06 Halo (OA) 360 803 646 667 -22.7 ---- ---- 10 C2 C3 195 SXT PHTX DST Java Movie
    1999/06/04 07:26:54 289 150 2230 1935 2129 -158.8*1 ---- ---- 287 C2 C3 195 SXT PHTX DST Java Movie Only 3 points; Only C3; Partial Halo
    1999/06/04 09:26:06 268 59 697 811 777 10.8 1.5e+15 3.7e+30 261 C2 C3 195 SXT PHTX DST Java Movie
    1999/06/04 19:26:51 46 27 695 986 2084 192.1*1 ---- ---- 48 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only 3 points
    1999/06/04 23:26:05 60 74 332 302 251 -2.9 5.0e+14 2.7e+29 60 C2 C3 195 SXT PHTX DST Java Movie Difficult to measure the width
    1999/06/05 05:26:05 252 50 300 --- --- --- ---- ---- 262 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only 2 points; Only C2
    1999/06/05 07:26:54 289 44 252 320 395 5.6*1 1.1e+14 3.4e+28 300 C2 C3 195 SXT PHTX DST Java Movie
    1999/06/06 23:26:06 40 69 140 136 0 -2.4*1 1.3e+14*2 1.3e+28*2 47 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only C2
    1999/06/07 02:26:05 289 20 534 641 906 28.6*1 2.4e+14 3.4e+29 290 C2 C3 195 SXT PHTX DST Java Movie
    1999/06/07 06:06:05 69 122 269 233 0 -6.9*1 1.0e+15*2 3.7e+29*2 68 C2 C3 195 SXT PHTX DST Java Movie Partial Halo
    1999/06/07 08:06:05 259 54 535 339 0 -28.0 2.5e+14 3.6e+29 273 C2 C3 195 SXT PHTX DST Java Movie
    1999/06/07 23:26:05 301 55 319 337 357 1.6 ---- ---- 319 C2 C3 195 SXT PHTX DST Java Movie
    1999/06/08 03:50:05 294 60 405 457 474 4.2 6.2e+14 5.1e+29 297 C2 C3 195 SXT PHTX DST Java Movie
    1999/06/08 05:50:05 68 82 638 612 565 -5.2 8.9e+14 1.8e+30 51 C2 C3 195 SXT PHTX DST Java Movie
    1999/06/08 14:50:05 230 8 690 665 649 -3.8*1 ---- ---- 232 C2 C3 195 SXT PHTX DST Java Movie
    1999/06/08 21:50:05 Halo (OA) 360 726 626 638 -12.2 ---- ---- 11 C2 C3 195 SXT PHTX DST Java Movie
    1999/06/09 01:26:55 27 67 268 214 0 -18.1*1 ---- ---- 27 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2007/07/26; Only C2
    1999/06/09 05:26:05 336 20 278 287 331 1.6*1 2.0e+14 7.6e+28 340 C2 C3 195 SXT PHTX DST Java Movie
    1999/06/09 05:26:05 72 41 369 350 210 -4.5 8.1e+13 5.5e+28 65 C2 C3 195 SXT PHTX DST Java Movie
    1999/06/10 04:26:05 273 44 275 --- --- --- ---- ---- 273 C2 C3 195 SXT PHTX DST Java Movie Only 2 points; Only C2
    1999/06/10 05:26:05 351 131 434 376 257 -7.4 2.2e+15*2 2.1e+30*2 357 C2 C3 195 SXT PHTX DST Java Movie Partial Halo
    1999/06/10 11:50:05 75 55 215 252 378 4.6*1 5.4e+14 1.3e+29 78 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/06/10 14:50:05 91 115 412 451 497 4.4 2.8e+15 2.4e+30 87 C2 C3 195 SXT PHTX DST Java Movie
    1999/06/11 01:26:49 288 101 719 560 0 -38.2 3.2e+15 8.2e+30 262 C2 C3 195 SXT PHTX DST Java Movie
    1999/06/11 10:26:05 259 16 438 335 0 -14.9 4.0e+14 3.8e+29 266 C2 C3 195 SXT PHTX DST Java Movie
    1999/06/11 11:26:05 35 >181 1569 1463 1520 -20.8 ---- ---- 38 C2 C3 195 SXT PHTX DST Java Movie Uncertain Width; Partial Halo
    1999/06/12 00:26:05 86 83 562 487 0 -17.9*1 7.8e+14 1.2e+30 84 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/06/12 09:50:05 48 37 360 371 384 1.1 5.1e+14 3.3e+29 47 C2 C3 195 SXT PHTX DST Java Movie
    1999/06/12 14:06:05 242 8 669 518 234 -26.8*1 ---- ---- 253 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/06/12 14:06:05 96 49 392 467 942 31.8*1 ---- ---- 109 C2 C3 195 SXT PHTX DST Java Movie Only C2
    1999/06/12 21:26:08 Halo (BA) 360 465 380 338 -7.8 ---- ---- 337 C2 C3 195 SXT PHTX DST Java Movie
    1999/06/13 02:06:05 239 19 955 837 665 -29.7 1.7e+14 7.6e+29 248 C2 C3 195 SXT PHTX DST Java Movie
    1999/06/13 05:50:05 241 36 857 915 973 13.5 2.8e+14 1.0e+30 246 C2 C3 195 SXT PHTX DST Java Movie
    1999/06/13 07:50:05 332 28 220 252 310 2.6*1 2.2e+14 5.4e+28 336 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/06/13 16:26:05 95 60 385 569 592 12.5 3.3e+15 2.4e+30 92 C2 C3 195 SXT PHTX DST Java Movie
    1999/06/13 17:06:05 200 62 648 641 634 -1.2 1.6e+15 3.3e+30 193 C2 C3 195 SXT PHTX DST Java Movie
    1999/06/13 17:06:05 342 72 359 354 347 -0.5*1 7.7e+14 4.9e+29 351 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/06/14 12:50:05 129 148 560 753 869 25.1 3.2e+15*2 5.0e+30*2 144 C2 C3 195 SXT PHTX DST Java Movie Partial Halo
    1999/06/15 11:26:05 294 98 327 312 253 -2.2 2.1e+15 1.1e+30 300 C2 C3 195 SXT PHTX DST Java Movie
    1999/06/15 23:54:36 121 35 708 492 0 -42.3 4.4e+14 1.1e+30 102 C2 C3 195 SXT PHTX DST Java Movie
    1999/06/16 03:54:06 116 32 1283 999 489 -115.3*1 8.6e+14*2 7.1e+30*2 99 C2 C3 195 SXT PHTX DST Java Movie
    1999/06/16 04:54:05 63 107 979 978 978 -0.0 2.3e+15 1.1e+31 43 C2 C3 195 SXT PHTX DST Java Movie
    1999/06/16 07:54:05 24 67 328 396 459 5.9 2.2e+15 1.2e+30 32 C2 C3 195 SXT PHTX DST Java Movie
    1999/06/16 19:31:24 261 38 ---- --- --- --- ---- ---- 260 C2 C3 195 SXT PHTX DST Java Movie Difficult to measure the width; Very Poor Event; Only C2; Unable to measure
    1999/06/19 12:30:06 54 49 476 445 432 -3.3 1.3e+15 1.5e+30 50 C2 C3 195 SXT PHTX DST Java Movie
    1999/06/19 12:30:06 306 65 262 267 272 0.6*1 ---- ---- 314 C2