• 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
    2019/12/01 03:24:05 102 36 167 165 120 -0.6*1 2.5e+13 3.5e+27 106 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2019/12/01 09:12:10 140 10 227 283 1126 52.3*1 ---- ---- 137 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2019/12/01 12:36:05 261 19 98 96 25 -0.4*1 ---- ---- 261 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2019/12/02 07:36:05 37 5 313 372 1185 55.5*1 ---- ---- 41 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2019/12/02 20:00:05 129 12 316 219 0 -87.3*1 ---- ---- 127 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2019/12/03 05:12:05 101 57 241 350 978 39.5*1 5.0e+12 1.5e+27 116 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2019/12/03 06:48:05 234 9 338 493 2259 214.8*1 ---- ---- 238 C2 C3 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2019/12/03 19:24:05 113 36 329 482 916 33.2*1 1.5e+14 8.1e+28 114 C2 C3 PHTX DST Java Movie Poor Event
    2019/12/04 03:12:09 169 9 490 458 0 -44.3*1 ---- ---- 168 C2 C3 PHTX DST Java Movie Poor Event; Only 3 points; Only C2
    2019/12/05 16:00:05 286 26 94 118 295 3.4*1 2.8e+13 1.2e+27 280 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2019/12/05 18:36:06 137 10 161 155 0 -2.3*1 ---- ---- 135 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2019/12/05 19:00:05 253 9 165 188 343 4.0*1 ---- ---- 256 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2019/12/06 06:12:11 113 46 234 276 336 3.5*1 2.0e+12 5.5e+26 106 C2 C3 PHTX DST Java Movie Poor Event
    2019/12/06 08:24:06 119 31 354 436 470 6.2*1 1.1e+14 7.2e+28 119 C2 C3 PHTX DST Java Movie Poor Event
    2019/12/06 16:48:05 90 16 255 330 532 11.5*1 ---- ---- 95 C2 C3 PHTX DST Java Movie Very Poor Event
    2019/12/06 22:36:05 90 9 184 207 338 4.2*1 ---- ---- 93 C2 C3 PHTX DST Java Movie Very Poor Event
    2019/12/06 23:36:05 122 12 174 123 0 -11.8*1 ---- ---- 122 C2 C3 PHTX DST Java Movie Very Poor Event
    2019/12/07 16:24:05 83 10 225 220 52 -2.1*1 ---- ---- 89 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2019/12/09 13:25:41 290 38 58 31 0 -4.3*1 5.6e+13 9.4e+26 287 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2019/12/09 18:12:05 286 57 159 357 297 3.7 3.0e+15 3.8e+29 284 C2 C3 PHTX DST Java Movie
    2019/12/09 18:24:05 109 17 259 242 86 -2.8*1 ---- ---- 117 C2 C3 PHTX DST Java Movie Poor Event
    2019/12/09 19:06:49 287 16 166 130 0 -7.8*1 ---- ---- 292 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2019/12/10 13:25:42 121 59 103 123 239 2.1*1 4.0e+14 2.1e+28 111 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2019/12/11 17:48:05 112 50 119 233 243 2.6*1 8.8e+13 6.2e+27 116 C2 C3 PHTX DST Java Movie Poor Event
    2019/12/13 02:24:06 343 10 384 436 886 27.7*1 ---- ---- 338 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2019/12/13 22:00:05 106 15 165 225 368 5.8*1 ---- ---- 104 C2 C3 PHTX DST Java Movie Very Poor Event
    2019/12/15 00:12:05 293 15 171 200 330 3.9*1 ---- ---- 288 C2 C3 PHTX DST Java Movie Very Poor Event
    2019/12/15 08:48:05 171 12 475 804 2666 291.0*1 ---- ---- 167 C2 C3 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2019/12/15 10:24:05 287 9 208 301 491 10.2*1 ---- ---- 287 C2 C3 PHTX DST Java Movie Poor Event
    2019/12/15 19:48:05 290 16 219 299 676 21.2*1 ---- ---- 287 C2 C3 PHTX DST Java Movie Very Poor Event
    2019/12/16 06:36:05 319 7 406 363 0 -39.9*1 ---- ---- 311 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2019/12/16 10:48:05 0 4 609 551 0 -80.6*1 ---- ---- 359 C2 C3 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2019/12/17 21:36:05 284 53 176 207 440 7.2*1 2.9e+13 4.5e+27 288 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2019/12/19 13:25:40 306 8 404 263 0 -145.0*1 ---- ---- 295 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2019/12/19 23:12:10 244 5 291 347 1374 78.3*1 ---- ---- 253 C2 C3 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2019/12/21 15:48:05 274 7 289 429 1186 66.5*1 ---- ---- 280 C2 C3 PHTX DST Java Movie Very Poor Event
    2019/12/22 20:12:05 235 7 118 70 0 -40.4*1 ---- ---- 239 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2019/12/23 02:36:05 266 32 290 482 1583 103.8*1 5.9e+12 2.5e+27 264 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2019/12/23 15:48:05 11 7 592 635 1133 40.3*1 ---- ---- 10 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2019/12/24 04:24:05 282 57 222 288 615 14.6*1 6.0e+13 1.5e+28 289 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2019/12/24 13:25:42 13 8 565 661 1903 144.1*1 ---- ---- 12 C2 C3 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2019/12/25 09:24:05 274 49 291 245 0 -14.3*1 3.5e+13 1.5e+28 268 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2019/12/26 01:48:05 219 9 335 189 0 -116.8*1 ---- ---- 224 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2019/12/26 04:36:07 190 7 326 289 0 -34.3*1 ---- ---- 191 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2019/12/26 05:12:05 99 58 154 104 0 -11.1*1 6.5e+13 7.7e+27 109 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2019/12/26 15:12:11 116 17 246 334 743 21.9*1 ---- ---- 110 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2019/12/27 01:36:15 256 11 273 158 0 -21.6*1 ---- ---- 258 C2 C3 PHTX DST Java Movie Poor Event
    2019/12/27 03:24:05 302 21 437 779 2036 171.2*1 1.9e+13*2 1.8e+28*2 296 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2019/12/27 03:47:14 183 8 629 927 2339 228.5*1 ---- ---- 183 C2 C3 PHTX DST Java Movie Poor Event; Only 3 points; Only C2
    2019/12/27 04:49:40 284 46 449 405 136 -9.1*1 6.3e+13 6.3e+28 289 C2 C3 PHTX DST Java Movie Poor Event
    2019/12/30 01:25:40 277 39 56 75 195 1.6*1 4.3e+14 6.8e+27 278 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2019/12/30 03:12:09 256 83 103 189 250 2.6*1 7.9e+14 4.2e+28 242 C2 C3 PHTX DST Java Movie Poor Event
    2019/12/31 06:00:05 273 16 174 219 422 6.7*1 ---- ---- 274 C2 C3 PHTX DST Java Movie Very Poor Event
    2019/12/31 21:36:07 119 16 69 67 0 -0.2*1 ---- ---- 125 C2 C3 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).