• 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
    2009/02/01 02:30:03 99 56 202 207 217 0.3*1 1.5e+14 3.0e+28 96 C2 C3 195 PHTX DST Java Movie Poor Event
    2009/02/01 10:34:04 282 10 184 233 541 11.9*1 ---- ---- 282 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2009/02/02 06:30:03 318 11 266 109 0 -61.0*1 ---- ---- 310 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2009/02/02 18:30:03 182 8 421 938 3188 456.5*1 ---- ---- 181 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2009/02/02 21:30:03 182 9 392 711 2560 281.9*1 ---- ---- 180 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2009/02/03 22:18:03 262 11 325 411 927 38.0*1 ---- ---- 268 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points
    2009/02/04 07:31:39 6 10 578 1019 3079 409.5*1 ---- ---- 11 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2009/02/05 21:30:06 91 25 151 150 148 -0.0*1 3.0e+14 3.4e+28 98 C2 C3 195 PHTX DST Java Movie Poor Event
    2009/02/06 03:06:03 291 25 447 532 536 6.3*1 5.4e+14 5.3e+29 283 C2 C3 195 PHTX DST Java Movie
    2009/02/06 23:30:04 40 7 465 876 2945 363.6*1 ---- ---- 45 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2009/02/08 05:00:03 103 39 260 217 0 -10.7*1 2.3e+13 7.8e+27 96 C2 C3 PHTX DST Java Movie Poor Event
    2009/02/08 05:12:03 296 12 554 605 967 28.4*1 ---- ---- 291 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2009/02/09 07:12:03 94 49 219 250 314 2.6*1 1.4e+14 3.4e+28 94 C2 C3 PHTX DST Java Movie
    2009/02/09 13:36:03 288 10 275 259 0 -7.2*1 ---- ---- 283 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2009/02/11 06:42:03 86 39 282 376 338 7.4*1 7.0e+14 2.8e+29 88 C2 C3 PHTX DST Java Movie Poor Event; Only C3
    2009/02/11 06:42:03 264 53 330 518 440 13.4*1 1.4e+15 7.5e+29 263 C2 C3 PHTX DST Java Movie Poor Event; Only C3
    2009/02/15 23:54:23 307 11 279 286 370 2.7*1 ---- ---- 301 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2009/02/16 01:54:03 261 7 173 169 127 -0.7*1 ---- ---- 260 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2009/02/16 06:30:03 252 6 279 358 443 7.3*1 ---- ---- 251 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2009/02/16 10:06:03 156 4 181 307 1457 87.4*1 ---- ---- 153 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2009/02/17 12:30:03 252 13 261 283 346 3.1*1 ---- ---- 256 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2009/02/18 02:30:03 63 53 192 490 446 8.2*1 2.0e+15 3.7e+29 68 C2 C3 195 PHTX DST Java Movie
    2009/02/18 14:06:04 195 9 302 307 408 3.2*1 ---- ---- 196 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2009/02/18 23:54:05 306 74 122 171 468 9.3*1 2.7e+14 2.0e+28 322 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2009/02/19 00:54:03 272 30 194 165 0 -7.9*1 6.3e+13 1.2e+28 272 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2009/02/19 03:30:03 69 22 179 196 221 0.9*1 4.1e+13 6.6e+27 77 C2 C3 195 PHTX DST Java Movie Poor Event
    2009/02/19 08:30:03 239 12 135 139 183 0.7*1 ---- ---- 242 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2
    2009/02/19 17:45:46 60 19 226 357 347 4.6*1 ---- ---- 67 C2 C3 195 PHTX DST Java Movie Poor Event
    2009/02/20 10:21:25 6 9 431 407 0 -12.4*1 ---- ---- 8 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2009/02/21 00:56:26 267 80 376 475 402 9.3 1.0e+15 7.3e+29 258 C2 C3 195 PHTX DST Java Movie Only C3
    2009/02/21 11:13:22 335 4 412 505 1086 47.8*1 ---- ---- 330 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2
    2009/02/21 13:23:09 252 9 248 250 250 0.1*1 ---- ---- 258 C2 C3 195 PHTX DST Java Movie
    2009/02/22 12:06:03 116 67 88 83 0 -0.5*1 2.4e+14 9.4e+27 101 PHTX DST Java Movie Poor Event; Only C2
    2009/02/23 05:30:03 267 7 340 438 693 17.6*1 ---- ---- 271 PHTX DST Java Movie Poor Event
    2009/02/23 07:54:05 270 12 292 358 483 7.5*1 ---- ---- 272 PHTX DST Java Movie Poor Event
    2009/02/23 12:30:04 71 11 282 369 578 12.2*1 ---- ---- 81 PHTX DST Java Movie Poor Event
    2009/02/23 19:12:28 275 36 260 277 393 4.2*1 3.6e+13 1.2e+28 276 PHTX DST Java Movie Very Poor Event
    2009/02/23 22:06:03 61 8 283 195 0 -33.5*1 ---- ---- 64 PHTX DST Java Movie Very Poor Event; Only C2
    2009/02/24 00:54:03 160 6 233 248 490 7.9*1 ---- ---- 159 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2009/02/24 12:54:05 327 4 254 343 1079 47.6*1 ---- ---- 321 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2009/02/24 14:30:03 286 13 126 198 265 3.0*1 ---- ---- 286 PHTX DST Java Movie Very Poor Event
    2009/02/24 23:30:03 73 17 413 499 737 18.0*1 ---- ---- 74 PHTX DST Java Movie Poor Event
    2009/02/25 02:30:03 96 38 195 216 376 4.6*1 5.4e+13 1.0e+28 96 PHTX DST Java Movie Poor Event; Only C2
    2009/02/25 13:31:39 4 6 514 363 0 -89.1*1 ---- ---- 3 PHTX DST Java Movie Very Poor Event; Only C2
    2009/02/26 16:54:03 67 11 333 335 357 0.7*1 ---- ---- 72 PHTX DST Java Movie Poor Event; Only C2
    2009/02/26 17:30:03 230 8 264 160 0 -41.1*1 ---- ---- 238 PHTX DST Java Movie Very Poor Event; Only C2
    2009/02/26 20:58:41 343 8 246 422 1409 82.6*1 ---- ---- 341 PHTX DST Java Movie Very Poor Event; Only C2
    2009/02/27 09:06:03 298 49 222 241 367 3.8*1 4.9e+13 1.2e+28 304 PHTX DST Java Movie Very Poor Event; Only C2
    2009/02/27 18:54:03 291 33 192 260 263 2.2*1 1.1e+14 2.0e+28 292 PHTX DST Java Movie
    2009/02/28 02:30:03 334 10 143 151 262 2.1*1 ---- ---- 327 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2009/02/28 09:06:20 332 6 325 451 1439 87.4*1 ---- ---- 325 PHTX DST Java Movie Very Poor Event; Only 3 points; 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).