• 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
    2010/04/01 06:30:05 83 46 114 113 96 -0.2*1 1.9e+14 1.2e+28 87 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2
    2010/04/01 12:30:05 284 73 36 48 126 0.6*1 1.7e+14 1.1e+27 289 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2010/04/01 14:30:05 216 14 223 256 563 12.0*1 ---- ---- 222 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2010/04/01 22:30:05 309 59 312 344 342 1.6*1 3.7e+14 1.8e+29 306 C2 C3 195 PHTX DST Java Movie
    2010/04/02 04:30:05 4 12 471 513 537 4.3*1 ---- ---- 359 C2 C3 195 PHTX DST Java Movie
    2010/04/02 09:30:05 111 13 285 391 964 37.5*1 ---- ---- 111 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2
    2010/04/02 09:54:05 262 53 164 302 355 5.2*1 3.4e+13 4.5e+27 262 C2 C3 195 PHTX DST Java Movie Poor Event
    2010/04/02 11:06:05 6 16 632 900 973 34.8*1 ---- ---- 3 C2 C3 195 PHTX DST Java Movie
    2010/04/02 11:30:05 80 55 550 594 611 5.0*1 8.1e+14 1.2e+30 83 C2 C3 195 PHTX DST Java Movie
    2010/04/03 03:56:29 243 29 236 310 352 4.6*1 7.0e+14 1.9e+29 241 C2 C3 195 PHTX DST Java Movie Poor Event
    2010/04/03 10:33:58 Halo 360 668 658 661 -1.0*1 ---- ---- 171 C2 C3 195 PHTX DST Java Movie
    2010/04/03 20:30:05 110 12 180 154 0 -8.0*1 ---- ---- 104 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2010/04/03 21:30:08 82 14 301 274 0 -9.8*1 ---- ---- 83 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2
    2010/04/03 22:30:05 53 8 215 218 228 0.3*1 ---- ---- 53 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2010/04/03 23:06:52 222 91 247 282 304 2.0*1 4.1e+14 1.2e+29 213 C2 C3 195 PHTX DST Java Movie
    2010/04/04 08:54:05 235 44 248 259 264 0.5*1 2.2e+14 6.8e+28 235 C2 C3 195 PHTX DST Java Movie
    2010/04/04 16:06:05 303 13 283 262 0 -8.2*1 ---- ---- 297 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2010/04/04 16:06:05 56 33 63 119 167 1.2*1 3.5e+14 6.9e+27 53 C2 C3 195 PHTX DST Java Movie Poor Event
    2010/04/04 17:06:05 126 24 131 136 160 0.4*1 3.9e+12 3.3e+26 123 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2010/04/04 17:30:05 233 38 222 229 237 0.5*1 1.7e+14 4.1e+28 231 C2 C3 195 PHTX DST Java Movie
    2010/04/05 04:54:05 121 25 249 324 443 6.9*1 6.4e+13 2.0e+28 124 C2 C3 195 PHTX DST Java Movie
    2010/04/05 05:30:05 231 18 325 430 463 8.0*1 ---- ---- 239 C2 C3 195 PHTX DST Java Movie Poor Event
    2010/04/06 02:30:05 125 9 378 289 0 -34.9*1 ---- ---- 119 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2
    2010/04/06 03:08:04 71 77 476 509 505 2.6*1 8.5e+14 9.6e+29 64 C2 C3 195 PHTX DST Java Movie Poor Event
    2010/04/06 18:30:05 50 39 278 517 588 16.2*1 6.9e+13 2.7e+28 52 C2 C3 195 PHTX DST Java Movie Poor Event
    2010/04/07 02:54:06 72 70 165 227 285 2.9*1 5.3e+14 7.2e+28 65 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2010/04/07 03:08:04 247 34 170 149 0 -5.8*1 8.4e+12 1.2e+27 248 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2010/04/07 19:31:40 249 29 160 163 195 0.5*1 9.2e+13 1.2e+28 246 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2010/04/08 01:31:40 76 156 227 422 362 5.2 4.4e+15*2 1.1e+30*2 72 C2 C3 195 PHTX DST Java Movie Partial Halo
    2010/04/08 04:54:07 249 160 264 235 179 -2.2*1 1.3e+15*2 4.6e+29*2 235 C2 C3 195 PHTX DST Java Movie Partial Halo
    2010/04/08 20:30:05 55 29 437 371 405 -3.7*1 3.7e+13 3.5e+28 59 C2 C3 195 PHTX DST Java Movie
    2010/04/08 23:54:05 320 4 538 283 0 -138.5*1 ---- ---- 317 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2
    2010/04/09 05:06:07 56 8 438 440 440 0.1*1 ---- ---- 68 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2010/04/10 00:54:05 243 11 303 357 346 2.5*1 ---- ---- 241 C2 C3 195 PHTX DST Java Movie Poor Event
    2010/04/10 03:56:29 290 12 229 378 1261 67.5*1 ---- ---- 285 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2010/04/10 09:32:22 45 12 283 327 374 3.7*1 ---- ---- 55 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2010/04/10 12:54:05 82 31 43 87 230 2.2*1 5.3e+14 4.9e+27 81 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2010/04/10 20:30:05 235 81 163 313 304 3.8*1 2.5e+15 3.3e+29 231 C2 C3 195 PHTX DST Java Movie
    2010/04/10 23:30:06 43 14 221 307 345 4.6*1 ---- ---- 58 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2010/04/11 07:54:05 63 27 283 350 390 4.4*1 8.4e+13 3.4e+28 70 C2 C3 195 PHTX DST Java Movie
    2010/04/11 08:30:05 322 4 485 510 665 9.8*1 ---- ---- 322 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2
    2010/04/11 16:54:05 44 5 287 369 474 8.5*1 ---- ---- 55 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2010/04/11 19:31:41 130 12 357 448 689 16.9*1 ---- ---- 126 C2 C3 195 PHTX DST Java Movie Poor Event
    2010/04/11 23:30:05 85 71 116 124 257 2.3*1 1.7e+14 1.2e+28 76 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2010/04/12 03:30:05 232 36 235 332 317 3.6*1 2.1e+14 5.7e+28 235 C2 C3 195 PHTX DST Java Movie Poor Event
    2010/04/13 02:30:05 118 24 171 144 24 -2.0*1 1.4e+14 2.0e+28 110 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2010/04/13 05:30:05 227 5 182 171 147 -0.7*1 ---- ---- 228 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2010/04/13 06:06:05 61 55 221 267 286 2.1*1 ---- ---- 53 C2 C3 195 PHTX DST Java Movie Poor Event
    2010/04/13 08:30:05 321 120 452 818 709 19.9 4.9e+15 5.0e+30 320 C2 C3 195 PHTX DST Java Movie
    2010/04/14 10:54:05 105 35 138 119 0 -3.8*1 1.0e+14 9.7e+27 104 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2
    2010/04/15 00:30:05 285 11 369 513 527 10.3*1 ---- ---- 283 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2010/04/15 03:08:07 260 46 319 319 314 -0.1*1 2.2e+14 1.1e+29 261 C2 C3 195 PHTX DST Java Movie Only C2
    2010/04/15 08:30:05 252 56 185 232 513 10.2*1 2.1e+14 3.6e+28 261 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2
    2010/04/15 14:06:05 255 89 627 633 631 0.5 2.2e+15 4.4e+30 272 C2 C3 195 PHTX DST Java Movie
    2010/04/15 14:30:05 330 7 345 421 550 10.4*1 ---- ---- 326 C2 C3 195 PHTX DST Java Movie Poor Event
    2010/04/15 15:54:05 122 25 174 164 0 -4.1*1 3.9e+13 5.9e+27 123 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2010/04/15 18:54:05 14 8 117 144 216 1.6*1 ---- ---- 16 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2010/04/15 23:30:05 250 15 280 310 323 1.8*1 ---- ---- 245 C2 C3 195 PHTX DST Java Movie Poor Event
    2010/04/16 00:54:05 327 10 205 285 354 4.6*1 ---- ---- 335 C2 C3 195 PHTX DST Java Movie Poor Event
    2010/04/16 15:54:05 88 21 256 206 0 -27.6*1 2.8e+13*2 9.2e+27*2 93 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2010/04/17 00:30:07 239 23 277 291 294 0.8*1 ---- ---- 255 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2010/04/17 05:06:07 78 24 764 550 0 -46.6*1 1.1e+14 3.2e+29 81 C2 C3 195 PHTX DST Java Movie Poor Event
    2010/04/17 10:34:01 270 57 299 309 315 0.6*1 2.3e+14 1.0e+29 263 C2 C3 195 PHTX DST Java Movie Poor Event
    2010/04/17 23:30:05 224 6 1087 996 0 -80.6*1 ---- ---- 230 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2010/04/18 20:30:05 257 100 381 741 644 17.1 4.3e+15 3.1e+30 240 C2 C3 195 PHTX DST Java Movie
    2010/04/19 16:54:05 302 108 488 747 675 16.3 4.4e+15 5.3e+30 322 C2 C3 195 PHTX DST Java Movie
    2010/04/20 03:54:05 7 55 250 333 354 3.9*1 2.7e+13 8.5e+27 0 C2 C3 195 PHTX DST Java Movie Poor Event
    2010/04/20 06:30:05 93 63 434 360 221 -8.8*1 4.1e+14 3.8e+29 90 C2 C3 195 PHTX DST Java Movie
    2010/04/20 07:31:38 298 43 303 397 443 6.3*1 ---- ---- 291 C2 C3 195 PHTX DST Java Movie Poor Event
    2010/04/20 15:54:27 319 10 323 441 454 8.0*1 ---- ---- 313 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2010/04/20 19:31:42 299 17 336 459 635 15.2*1 ---- ---- 298 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2010/04/23 09:30:05 116 19 137 117 0 -3.5*1 ---- ---- 119 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2010/04/23 12:30:05 292 14 312 415 598 14.3*1 ---- ---- 287 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2010/04/23 23:54:05 106 57 269 250 177 -2.1*1 3.0e+14 1.1e+29 95 C2 C3 195 PHTX DST Java Movie
    2010/04/25 00:30:05 224 11 351 416 835 25.9*1 ---- ---- 225 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2010/04/25 12:30:05 35 13 344 450 1011 41.1*1 ---- ---- 36 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2
    2010/04/25 15:30:05 231 10 349 390 649 13.7*1 ---- ---- 235 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2010/04/25 18:54:05 271 22 236 201 0 -10.2*1 1.1e+14 3.1e+28 270 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2010/04/26 10:24:05 315 14 224 254 334 3.2*1 ---- ---- 312 C2 C3 PHTX DST Java Movie Very Poor Event
    2010/04/26 23:36:34 317 8 310 388 480 7.6*1 ---- ---- 312 C2 C3 PHTX DST Java Movie Very Poor Event
    2010/04/28 13:12:06 315 9 190 207 286 2.2*1 ---- ---- 306 C2 C3 PHTX DST Java Movie Very Poor Event
    2010/04/28 15:12:08 82 30 169 178 299 2.6*1 8.5e+13 1.2e+28 81 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2010/04/29 01:12:05 85 49 138 147 365 4.8*1 1.5e+13 1.4e+27 84 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2010/04/29 03:36:07 87 61 178 224 579 13.0*1 1.2e+15 1.9e+29 84 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2010/04/29 07:00:05 88 58 187 174 0 -3.1*1 1.7e+14 3.0e+28 82 C2 C3 PHTX DST Java Movie Only C2
    2010/04/29 17:00:05 260 30 378 364 238 -4.0*1 1.4e+14 9.9e+28 261 C2 C3 PHTX DST Java Movie Poor Event

    *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).