• 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
    2008/10/01 06:06:05 112 29 188 388 577 13.9*1 1.3e+14 2.3e+28 113 C2 C3 195 PHTX DST Java Movie Poor Event
    2008/10/01 08:26:04 262 19 158 128 0 -9.7*1 ---- ---- 262 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2
    2008/10/01 10:26:06 324 8 220 357 1148 54.9*1 ---- ---- 317 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2008/10/02 07:27:11 47 8 226 183 0 -18.0*1 ---- ---- 53 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2008/10/02 11:50:04 356 5 278 121 0 -40.3*1 ---- ---- 356 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2
    2008/10/03 12:06:04 236 24 203 221 263 1.5*1 6.9e+13 1.4e+28 234 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2008/10/03 12:26:04 287 14 186 112 0 -14.5*1 ---- ---- 287 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2008/10/03 15:23:31 293 14 207 246 338 3.6*1 ---- ---- 291 C2 C3 195 PHTX DST Java Movie Poor Event
    2008/10/04 00:06:05 74 49 122 226 240 2.4*1 2.1e+15 1.5e+29 75 C2 C3 195 PHTX DST Java Movie
    2008/10/04 00:26:23 236 24 264 446 450 8.4*1 1.7e+14 6.0e+28 236 C2 C3 195 PHTX DST Java Movie
    2008/10/04 12:06:04 254 21 189 221 240 1.4*1 1.9e+14 3.3e+28 254 C2 C3 195 PHTX DST Java Movie Poor Event
    2008/10/04 19:42:04 68 12 331 312 300 -1.4*1 ---- ---- 70 C2 C3 195 PHTX DST Java Movie Poor Event
    2008/10/04 22:26:04 241 8 376 408 405 2.0*1 ---- ---- 243 C2 C3 195 PHTX DST Java Movie Poor Event
    2008/10/05 03:50:04 236 10 197 210 225 0.7*1 ---- ---- 240 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2008/10/05 19:26:05 255 56 157 349 328 4.5*1 3.7e+15 4.5e+29 256 C2 C3 195 PHTX DST Java Movie
    2008/10/06 05:50:04 97 16 214 261 271 2.0*1 ---- ---- 93 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2008/10/06 17:30:04 187 5 284 277 143 -2.6*1 ---- ---- 191 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2008/10/07 03:06:05 90 49 239 230 204 -0.8 1.4e+14 3.9e+28 102 C2 C3 195 PHTX DST Java Movie
    2008/10/08 07:30:04 290 13 317 171 0 -61.4*1 ---- ---- 283 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2
    2008/10/08 07:30:04 100 41 267 161 0 -29.1*1 1.2e+14 4.4e+28 105 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2
    2008/10/08 16:54:04 84 47 179 224 331 3.8*1 2.2e+14 3.6e+28 87 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2008/10/08 19:30:04 249 10 242 176 0 -26.7*1 ---- ---- 252 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2008/10/09 02:54:04 296 31 251 221 181 -1.9*1 2.4e+14 7.4e+28 288 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2008/10/09 19:30:04 285 12 225 150 0 -21.6*1 ---- ---- 282 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2008/10/09 19:30:04 76 16 187 233 525 10.6*1 ---- ---- 78 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2008/10/10 03:06:04 190 5 420 673 1845 137.6*1 ---- ---- 191 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2008/10/10 12:06:05 79 9 168 184 228 1.3*1 ---- ---- 87 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2008/10/10 14:30:04 286 10 245 254 309 1.7*1 ---- ---- 282 C2 C3 195 PHTX DST Java Movie Poor Event
    2008/10/10 19:30:04 23 6 461 337 0 -70.2*1 ---- ---- 29 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2008/10/11 16:30:04 75 18 318 339 376 2.2*1 ---- ---- 80 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2008/10/12 07:31:39 75 30 200 236 288 2.4*1 1.0e+14 2.0e+28 83 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2008/10/12 10:34:02 243 7 357 453 1219 58.6*1 ---- ---- 244 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2008/10/14 11:30:04 184 8 277 238 0 -22.4*1 ---- ---- 182 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2008/10/16 20:58:41 72 19 532 609 758 15.8*1 ---- ---- 76 C2 C3 195 PHTX DST Java Movie
    2008/10/16 21:30:07 352 4 209 138 0 -20.3*1 ---- ---- 351 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2008/10/17 03:54:04 189 6 893 1102 1955 138.7*1 ---- ---- 193 C2 C3 195 PHTX DST Java Movie Poor Event
    2008/10/17 07:31:39 Halo 360 143 295 411 7.0*1 1.6e+15*2 1.6e+29*2 125 C2 C3 195 PHTX DST Java Movie
    2008/10/17 16:54:04 113 11 377 405 418 2.2*1 ---- ---- 116 C2 C3 195 PHTX DST Java Movie
    2008/10/17 22:30:05 13 2 193 --- --- --- ---- ---- 14 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 2 points; Only C2
    2008/10/18 00:54:04 110 16 196 239 351 4.1*1 ---- ---- 112 C2 C3 195 PHTX DST Java Movie Poor Event
    2008/10/18 07:31:39 106 24 145 135 0 -1.7*1 8.3e+13 8.7e+27 108 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2008/10/18 13:31:42 187 10 307 470 1901 151.7*1 ---- ---- 190 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2008/10/18 16:30:04 51 6 260 210 0 -21.7*1 ---- ---- 54 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2008/10/18 17:06:04 289 23 200 115 0 -19.3*1 1.2e+13 2.4e+27 287 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2008/10/18 22:30:05 71 10 222 190 0 -6.8*1 ---- ---- 73 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2008/10/19 09:06:04 77 12 393 498 779 21.6*1 ---- ---- 77 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2008/10/20 06:54:04 12 5 217 303 982 39.0*1 ---- ---- 15 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2008/10/20 10:06:04 69 7 316 320 379 1.9*1 ---- ---- 75 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2008/10/20 22:08:05 256 45 107 161 170 1.1*1 1.4e+15 8.0e+28 264 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2008/10/21 11:06:05 49 151 216 384 365 5.4*1 2.1e+15*2 5.0e+29*2 81 C2 C3 195 PHTX DST Java Movie Partial Halo
    2008/10/22 08:54:04 336 8 669 436 0 -136.5*1 ---- ---- 334 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2008/10/22 12:30:04 337 12 262 374 1043 43.9*1 ---- ---- 336 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2008/10/22 23:06:04 61 7 424 548 1283 65.6*1 ---- ---- 67 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2008/10/23 07:54:05 65 10 315 327 346 1.2*1 ---- ---- 72 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2008/10/24 18:54:05 287 9 173 225 388 5.7*1 ---- ---- 286 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2008/10/26 03:30:11 311 8 465 904 3036 389.1*1 ---- ---- 308 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2008/10/26 03:30:11 283 11 269 264 83 -2.9*1 ---- ---- 276 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2008/10/26 12:54:04 259 65 172 356 304 3.8*1 5.7e+15 8.5e+29 262 C2 C3 195 PHTX DST Java Movie
    2008/10/27 05:30:04 101 15 267 292 326 2.0*1 ---- ---- 99 C2 C3 195 PHTX DST Java Movie Poor Event
    2008/10/27 19:54:04 263 8 250 325 392 5.2*1 ---- ---- 264 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2008/10/28 16:54:04 184 5 157 129 0 -15.5*1 ---- ---- 185 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2008/10/30 11:54:04 278 47 183 426 433 8.0*1 5.2e+14 8.6e+28 280 C2 C3 195 PHTX DST Java Movie
    2008/10/31 00:30:06 12 7 248 336 907 33.9*1 ---- ---- 14 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2008/10/31 04:30:06 12 5 565 844 2473 247.0*1 ---- ---- 13 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2008/10/31 05:30:05 290 15 188 217 309 2.9*1 ---- ---- 290 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2008/10/31 11:06:05 186 7 433 186 0 -171.5*1 ---- ---- 190 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2008/10/31 17:30:04 201 6 131 135 268 2.3*1 ---- ---- 203 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2

    *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).