• 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 88 36 167 165 120 -0.6*1 ---- ---- 92 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2019/12/01 09:12:10 126 10 227 283 1126 52.3*1 ---- ---- 124 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2019/12/01 12:36:05 248 19 98 96 25 -0.4*1 ---- ---- 248 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very Poor Event; Only C2
    2019/12/02 07:36:05 23 5 313 372 1185 55.5*1 ---- ---- 27 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2019/12/02 20:00:05 115 12 316 219 0 -87.3*1 ---- ---- 113 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2019/12/03 05:12:05 87 57 241 350 978 39.5*1 ---- ---- 103 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very Poor Event; Only C2
    2019/12/03 06:48:05 221 9 338 493 2259 214.8*1 ---- ---- 225 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very Poor Event; Only 3 points; Only C2
    2019/12/03 19:24:05 100 36 329 482 916 33.2*1 ---- ---- 101 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2019/12/04 03:12:09 155 9 490 458 0 -44.3*1 ---- ---- 154 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only 3 points; Only C2
    2019/12/05 16:00:05 272 26 94 118 295 3.4*1 ---- ---- 267 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2019/12/05 18:36:06 123 10 161 155 0 -2.3*1 ---- ---- 122 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very Poor Event; Only C2
    2019/12/05 19:00:05 240 9 165 188 343 4.0*1 ---- ---- 242 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2019/12/06 06:12:11 99 46 234 276 336 3.5*1 ---- ---- 91 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2019/12/06 08:24:06 106 31 354 436 470 6.2*1 ---- ---- 104 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2019/12/06 16:48:05 77 16 255 330 532 11.5*1 ---- ---- 81 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very Poor Event
    2019/12/06 22:36:05 76 9 184 207 338 4.2*1 ---- ---- 79 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very Poor Event
    2019/12/06 23:36:05 109 12 174 123 0 -11.8*1 ---- ---- 108 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very Poor Event
    2019/12/07 16:24:05 70 10 225 220 52 -2.1*1 ---- ---- 76 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2019/12/09 13:25:41 276 38 58 31 0 -4.3*1 ---- ---- 274 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very Poor Event; Only C2
    2019/12/09 18:12:05 272 57 159 357 297 3.7 ---- ---- 269 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30
    2019/12/09 18:24:05 96 17 259 242 86 -2.8*1 ---- ---- 103 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2019/12/09 19:06:49 274 16 166 130 0 -7.8*1 ---- ---- 278 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very Poor Event; Only C2
    2019/12/10 13:25:42 107 59 103 123 239 2.1*1 ---- ---- 98 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very Poor Event; Only C2
    2019/12/11 17:48:05 98 50 119 233 243 2.6*1 ---- ---- 102 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2019/12/13 02:24:06 329 10 384 436 886 27.7*1 ---- ---- 325 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2019/12/13 22:00:05 93 15 165 225 368 5.8*1 ---- ---- 90 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very Poor Event
    2019/12/15 00:12:05 279 15 171 200 330 3.9*1 ---- ---- 275 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very Poor Event
    2019/12/15 08:48:05 158 12 475 804 2666 291.0*1 ---- ---- 154 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very Poor Event; Only 3 points; Only C2
    2019/12/15 10:24:05 274 9 208 301 491 10.2*1 ---- ---- 273 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2019/12/15 19:48:05 277 16 219 299 676 21.2*1 ---- ---- 273 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very Poor Event
    2019/12/16 06:36:05 306 7 406 363 0 -39.9*1 ---- ---- 298 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very Poor Event; Only C2
    2019/12/16 10:48:05 347 4 609 551 0 -80.6*1 ---- ---- 345 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very Poor Event; Only 3 points; Only C2
    2019/12/17 21:36:05 271 53 176 207 440 7.2*1 ---- ---- 275 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2019/12/19 13:25:40 293 8 404 263 0 -145.0*1 ---- ---- 282 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very Poor Event; Only C2
    2019/12/19 23:12:10 231 5 291 347 1374 78.3*1 ---- ---- 240 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very Poor Event; Only 3 points; Only C2
    2019/12/21 15:48:05 260 7 289 429 1186 66.5*1 ---- ---- 266 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very Poor Event
    2019/12/22 20:12:05 221 7 118 70 0 -40.4*1 ---- ---- 226 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very Poor Event; Only C2
    2019/12/23 02:36:05 253 32 290 482 1583 103.8*1 ---- ---- 251 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very Poor Event; Only C2
    2019/12/23 15:48:05 358 7 592 635 1133 40.3*1 ---- ---- 357 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2019/12/24 04:24:05 269 57 222 288 615 14.6*1 ---- ---- 276 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very Poor Event; Only C2
    2019/12/24 13:25:42 0 8 565 661 1903 144.1*1 ---- ---- 359 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very Poor Event; Only 3 points; Only C2
    2019/12/25 09:24:05 261 49 291 245 0 -14.3*1 ---- ---- 255 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2019/12/26 01:48:05 206 9 335 189 0 -116.8*1 ---- ---- 211 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very Poor Event; Only C2
    2019/12/26 04:36:07 177 7 326 289 0 -34.3*1 ---- ---- 178 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2019/12/26 05:12:05 86 58 154 104 0 -11.1*1 ---- ---- 96 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very Poor Event; Only C2
    2019/12/26 15:12:11 103 17 246 334 743 21.9*1 ---- ---- 97 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2019/12/27 01:36:15 243 11 273 158 0 -21.6*1 ---- ---- 244 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2019/12/27 03:24:05 290 21 437 779 2036 171.2*1 ---- ---- 283 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2019/12/27 03:47:14 170 8 629 927 2339 228.5*1 ---- ---- 170 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only 3 points; Only C2
    2019/12/27 04:49:40 272 46 449 405 136 -9.1*1 ---- ---- 275 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2019/12/30 01:25:40 265 39 56 75 195 1.6*1 ---- ---- 266 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very Poor Event; Only C2
    2019/12/30 03:12:09 243 83 103 189 250 2.6*1 ---- ---- 229 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2019/12/31 06:00:05 260 16 174 219 422 6.7*1 ---- ---- 262 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very Poor Event
    2019/12/31 21:36:07 107 16 69 67 0 -0.2*1 ---- ---- 113 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; 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).