• 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
    2008/04/01 05:06:04 289 15 214 184 0 -2.5*1 ---- ---- 287 C2 C3 195 PHTX DST Java Movie Poor Event
    2008/04/01 15:30:06 241 46 129 197 243 2.4*1 9.8e+14 8.2e+28 241 C2 C3 195 PHTX DST Java Movie Poor Event
    2008/04/01 19:31:41 308 10 160 151 0 -2.3*1 ---- ---- 306 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2008/04/01 19:31:41 110 11 295 340 679 17.0*1 ---- ---- 107 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2008/04/02 19:54:04 259 63 243 180 166 -2.7*1 4.5e+12 1.3e+27 261 C2 C3 195 PHTX DST Java Movie
    2008/04/02 23:54:04 354 7 213 126 0 -28.7*1 ---- ---- 355 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2008/04/03 17:06:04 178 6 200 132 0 -34.9*1 ---- ---- 177 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2008/04/03 19:50:04 264 62 225 159 0 -5.0*1 3.0e+14 7.5e+28 265 C2 C3 195 PHTX DST Java Movie Poor Event
    2008/04/04 06:06:06 201 4 142 94 0 -20.1*1 ---- ---- 200 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2008/04/05 02:26:04 179 11 166 82 0 -23.4*1 ---- ---- 177 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2008/04/05 04:26:07 223 5 241 214 170 -2.0*1 ---- ---- 231 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2008/04/05 06:50:04 244 11 299 213 0 -11.1*1 ---- ---- 245 C2 C3 195 PHTX DST Java Movie Poor Event
    2008/04/05 16:06:04 254 209 962 782 884 -21.3 4.1e+15*2 1.9e+31*2 283 C2 C3 195 PHTX DST Java Movie Partial Halo
    2008/04/05 21:26:09 236 21 306 434 620 14.4*1 2.0e+14 9.6e+28 241 C2 C3 195 PHTX DST Java Movie
    2008/04/05 22:26:04 267 18 349 437 491 7.4*1 ---- ---- 270 C2 C3 195 PHTX DST Java Movie
    2008/04/06 10:06:04 124 16 186 151 0 -10.6*1 ---- ---- 121 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2008/04/07 15:26:09 4 5 141 269 1575 103.3*1 ---- ---- 6 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2008/04/07 16:26:04 251 9 316 295 206 -3.6*1 ---- ---- 252 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2008/04/07 18:26:04 294 15 212 227 396 5.0*1 ---- ---- 291 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2008/04/08 08:26:04 108 14 234 317 538 11.4*1 ---- ---- 115 C2 C3 195 PHTX DST Java Movie Poor Event
    2008/04/08 11:06:05 14 8 302 200 0 -78.6*1 ---- ---- 18 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2008/04/08 17:26:04 258 89 257 271 331 2.1*1 3.0e+14 1.0e+29 267 C2 C3 195 PHTX DST Java Movie
    2008/04/09 10:26:05 232 67 650 664 662 1.4 1.4e+15 2.9e+30 250 C2 C3 195 PHTX DST Java Movie
    2008/04/09 15:26:09 81 17 116 125 204 1.3*1 ---- ---- 78 C2 C3 195 PHTX DST Java Movie Poor Event
    2008/04/09 21:26:04 215 13 212 188 106 -2.0*1 ---- ---- 216 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2008/04/10 02:50:04 78 13 191 227 277 2.2*1 ---- ---- 82 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2008/04/10 16:26:04 241 4 362 552 1917 153.1*1 ---- ---- 242 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2008/04/10 16:26:04 286 5 186 211 293 2.9*1 ---- ---- 287 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2008/04/11 02:06:05 286 20 254 303 322 2.5*1 3.7e+14 1.2e+29 287 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2008/04/11 03:26:08 257 24 178 193 402 5.7*1 2.2e+13 3.4e+27 251 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2008/04/11 23:06:04 64 29 432 390 409 -2.2 1.3e+15 1.2e+30 63 C2 C3 195 PHTX DST Java Movie
    2008/04/12 12:06:04 184 36 119 143 216 1.6*1 1.5e+14 1.1e+28 184 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2008/04/12 18:06:04 175 72 115 197 282 3.3*1 1.5e+13 1.0e+27 162 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2008/04/13 10:06:04 159 52 179 221 387 5.5*1 2.6e+13 4.1e+27 171 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2008/04/13 16:06:04 13 5 295 305 503 7.2*1 ---- ---- 16 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2008/04/14 01:27:15 140 28 177 171 0 -2.5*1 2.4e+12 3.7e+26 144 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2008/04/14 05:26:04 115 51 381 405 400 1.4*1 1.1e+15 8.2e+29 123 C2 C3 195 PHTX DST Java Movie
    2008/04/14 07:27:16 15 4 281 490 2063 174.0*1 ---- ---- 14 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2008/04/14 07:27:16 290 26 164 91 0 -30.9*1 1.7e+12 2.2e+26 291 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2008/04/15 01:27:10 344 5 308 371 959 36.2*1 ---- ---- 341 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2008/04/15 10:26:04 327 7 160 172 419 6.4*1 ---- ---- 322 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2008/04/15 15:26:08 133 8 107 101 0 -1.0*1 ---- ---- 131 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2008/04/15 23:26:05 13 7 263 592 2441 265.9*1 ---- ---- 14 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2008/04/16 04:50:04 93 24 100 84 0 -3.3*1 2.7e+13 1.4e+27 92 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2008/04/16 09:26:08 83 53 200 151 0 -2.9*1 4.2e+14 8.3e+28 88 C2 C3 195 PHTX DST Java Movie Poor Event
    2008/04/16 13:04:43 15 9 468 520 901 27.0*1 ---- ---- 14 C2 C3 195 PHTX DST Java Movie Poor Event; Only 3 points; Only C2
    2008/04/16 21:26:04 284 15 243 117 0 -39.5*1 ---- ---- 283 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2008/04/16 22:06:04 82 18 227 188 0 -3.3*1 ---- ---- 86 C2 C3 195 PHTX DST Java Movie
    2008/04/17 21:50:04 241 16 538 624 918 27.1*1 ---- ---- 245 C2 C3 195 PHTX DST Java Movie Poor Event
    2008/04/18 16:54:04 168 26 279 333 646 15.2*1 4.2e+13 1.6e+28 168 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2008/04/18 22:30:04 229 7 184 241 682 18.7*1 ---- ---- 240 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2008/04/19 06:06:26 88 14 375 328 0 -7.8*1 ---- ---- 89 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2008/04/19 14:30:04 21 7 197 206 353 3.8*1 ---- ---- 22 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2008/04/19 15:30:04 305 7 205 264 753 22.7*1 ---- ---- 307 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2008/04/21 16:54:28 275 32 325 325 324 -0.0*1 4.5e+14 2.4e+29 276 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2008/04/22 01:54:04 109 4 309 334 642 13.9*1 ---- ---- 109 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2008/04/23 06:30:04 270 26 227 314 832 28.3*1 5.4e+12 1.4e+27 272 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2008/04/24 05:06:04 64 28 185 157 0 -5.3*1 1.6e+13 2.7e+27 67 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2008/04/24 12:54:05 25 7 420 663 1753 129.7*1 ---- ---- 25 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2008/04/24 13:31:42 80 25 153 139 0 -1.8*1 1.1e+14 1.3e+28 88 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2008/04/25 00:06:04 62 30 155 110 0 -11.7*1 2.2e+13 2.6e+27 62 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2008/04/25 04:30:04 264 12 447 408 0 -22.4*1 ---- ---- 266 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2008/04/25 11:30:05 207 11 370 324 0 -40.5*1 ---- ---- 212 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2008/04/25 14:54:04 290 6 296 372 936 34.7*1 ---- ---- 290 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2008/04/25 23:06:06 313 33 71 81 156 0.8*1 6.6e+13 1.7e+27 315 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2008/04/26 02:30:04 234 29 230 360 447 8.6*1 5.1e+14 1.3e+29 226 C2 C3 195 PHTX DST Java Movie Poor Event
    2008/04/26 04:30:04 284 22 703 502 0 -49.5 5.1e+14 1.3e+30 277 C2 C3 195 PHTX DST Java Movie
    2008/04/26 14:30:04 65 281 515 621 603 8.2 3.4e+15*2 4.4e+30*2 59 C2 C3 195 PHTX DST Java Movie Partial Halo
    2008/04/27 16:30:04 97 49 76 122 171 1.2*1 5.6e+14 1.6e+28 98 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2008/04/28 00:54:05 229 14 101 94 0 -1.9*1 ---- ---- 233 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2008/04/28 02:06:04 292 10 190 125 0 -13.4*1 ---- ---- 287 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2
    2008/04/28 22:06:04 289 7 200 224 404 5.5*1 ---- ---- 288 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2
    2008/04/29 00:30:04 31 7 197 86 0 -61.6*1 ---- ---- 35 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2008/04/29 00:54:04 292 14 411 438 444 2.0*1 ---- ---- 290 C2 C3 195 PHTX DST Java Movie
    2008/04/29 06:30:05 95 14 201 213 223 0.6*1 ---- ---- 97 C2 C3 195 PHTX DST Java Movie
    2008/04/29 10:06:29 300 9 233 259 437 6.1*1 ---- ---- 298 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2008/04/29 19:55:28 232 13 295 368 370 4.1*1 ---- ---- 239 C2 C3 195 PHTX DST Java Movie Poor Event
    2008/04/30 09:30:04 337 6 289 588 2489 264.0*1 ---- ---- 333 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2008/04/30 11:06:04 24 5 169 218 892 33.6*1 ---- ---- 29 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2008/04/30 13:31:40 296 6 298 375 644 15.1*1 ---- ---- 292 C2 C3 195 PHTX DST Java Movie Very 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).