• 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] Movies, plots, & links Remarks
    1996/11/01 03:21:05 257 7 357 263 0 -34.9*1 ---- ---- 261 C2 C3 195 SXT PHTX DST Java Movie Only 3 points; Only C2
    1996/11/03 13:11:09 279 47 185 179 0 -1.8*1 8.2e+13*2 1.4e+28*2 270 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1996/11/04 02:35:05 266 17 524 516 481 -2.4*1 ---- ---- 271 C2 C3 195 SXT PHTX DST Java Movie
    1996/11/04 17:52:23 104 41 90 106 183 1.2*1 4.1e+14 1.7e+28 114 C2 C3 195 SXT PHTX DST Java Movie Only C2
    1996/11/04 22:15:05 260 20 573 726 1044 41.7*1 9.4e+13 1.5e+29 269 C2 C3 195 SXT PHTX DST Java Movie
    1996/11/05 02:35:06 274 63 108 92 0 -2.6*1 2.7e+14 1.6e+28 276 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only C2
    1996/11/06 06:05:05 100 43 347 221 0 -16.8*1 1.9e+14 1.1e+29 89 C2 C3 195 SXT PHTX DST Java Movie
    1996/11/07 07:25:05 113 36 97 101 142 0.6*1 5.1e+13 2.4e+27 106 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1996/11/07 23:20:05 Halo (BA) 360 497 630 586 8.7 4.2e+15*2 5.2e+30*2 114 C2 C3 195 SXT PHTX DST Java Movie
    1996/11/08 14:42:21 288 70 87 132 263 3.0*1 9.3e+14 3.5e+28 285 C2 C3 195 SXT PHTX DST Java Movie
    1996/11/09 00:05:05 355 169 157 179 290 3.1*1 2.1e+14*2 2.6e+28*2 281 C2 C3 195 SXT PHTX DST Java Movie Partial Halo
    1996/11/13 14:21:05 330 4 ---- --- --- --- ---- ---- 327 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only 1 point; Only C2
    1996/11/15 01:31:07 76 33 217 288 407 6.3*1 7.1e+13 1.7e+28 75 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1996/11/19 16:45:36 250 68 213 227 299 2.2*1 2.2e+14*2 4.9e+28*2 263 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1996/11/24 17:52:18 268 77 594 804 684 31.1*1 4.5e+15*2 7.9e+30*2 288 C2 C3 195 SXT PHTX DST Java Movie Only C3
    1996/11/25 00:40:05 261 63 258 250 239 -0.6*1 6.8e+13 2.3e+28 256 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1996/11/26 06:00:06 268 72 313 428 563 13.2*1 1.2e+14 5.9e+28 290 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event
    1996/11/26 15:35:05 87 41 90 --- --- --- 2.3e+13*2 9.4e+26*2 85 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only 2 points; Only C2
    1996/11/26 21:35:41 270 78 548 781 954 38.1 ---- ---- 283 C2 C3 195 SXT PHTX DST Java Movie
    1996/11/27 21:28:19 271 39 379 495 562 11.1*1 ---- ---- 277 C2 C3 195 SXT PHTX DST Java Movie
    1996/11/28 11:02:05 277 27 294 373 503 9.6*1 ---- ---- 276 C2 C3 195 SXT PHTX DST Java Movie
    1996/11/28 16:50:06 267 101 984 1180 1121 27.5 4.0e+15 1.9e+31 267 C2 C3 195 SXT PHTX DST Java Movie
    1996/11/29 01:40:06 261 10 300 350 483 7.6 ---- ---- 267 C2 C3 195 SXT PHTX DST Java Movie
    1996/11/30 21:50:05 267 78 477 609 549 8.5 3.8e+15 4.3e+30 270 C2 C3 195 SXT PHTX DST Java Movie

    *1 Acceleration is uncertain due to either poor height measurement or a small number of height-time measurements (See Section 3.4 of Yashiro et al. 2004 for details).
    *2 Mass and Kinetic Energy are uncertain due to poor mass estimate. Mass measurement assumes that the CME material is in the sky-plane. Kinetic Energy is obtained from the mass and linear speed (see Vourlidas et al. 2000 for details).