• 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
    2020/06/01 06:36:05 100 54 162 126 0 -7.8*1 ---- ---- 103 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Poor Event; Only C2
    2020/06/01 16:24:07 94 65 248 216 0 -3.3*1 ---- ---- 114 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30
    2020/06/02 06:48:05 97 75 359 202 0 -31.0*1 ---- ---- 115 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30
    2020/06/02 12:00:05 97 23 255 328 667 17.1*1 ---- ---- 101 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Poor Event; Only C2
    2020/06/03 06:48:05 267 40 244 232 0 -5.8*1 ---- ---- 272 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Poor Event; Only C2
    2020/06/03 16:36:05 281 45 42 36 0 -0.3*1 ---- ---- 280 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Only C2
    2020/06/03 18:48:05 94 25 197 209 261 1.4*1 ---- ---- 93 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Poor Event
    2020/06/04 04:12:05 97 14 218 284 443 8.0*1 ---- ---- 93 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Poor Event
    2020/06/04 07:00:06 99 25 261 216 0 -11.1*1 ---- ---- 98 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Poor Event
    2020/06/05 00:36:06 99 44 565 660 1190 50.0*1 ---- ---- 112 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Only C2
    2020/06/06 00:00:06 92 41 121 98 0 -7.1*1 ---- ---- 91 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Very Poor Event; Only C2
    2020/06/06 03:12:11 272 25 208 301 384 5.7*1 ---- ---- 265 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Poor Event
    2020/06/06 21:24:05 336 5 346 300 0 -35.9*1 ---- ---- 342 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Very Poor Event; Only C2
    2020/06/12 14:00:05 83 61 185 300 298 3.5 ---- ---- 81 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30
    2020/06/12 21:24:06 264 51 150 177 314 3.4*1 ---- ---- 264 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Poor Event; Only C2
    2020/06/13 12:36:05 83 21 190 276 305 3.5*1 ---- ---- 99 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30
    2020/06/14 01:25:40 265 53 134 136 167 0.4*1 ---- ---- 261 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Very Poor Event; Only C2
    2020/06/14 01:36:13 82 16 298 318 356 2.3*1 ---- ---- 84 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Poor Event
    2020/06/15 04:36:05 272 35 179 134 0 -4.0*1 ---- ---- 270 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Very Poor Event
    2020/06/16 11:36:05 167 5 245 261 520 9.1*1 ---- ---- 164 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Very Poor Event; Only C2
    2020/06/16 19:24:05 164 9 309 141 0 -81.5*1 ---- ---- 162 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Poor Event; Only C2
    2020/06/17 17:48:05 87 35 208 244 553 11.6*1 ---- ---- 84 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Very Poor Event; Only C2
    2020/06/18 08:00:06 269 26 205 241 507 9.4*1 ---- ---- 263 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Very Poor Event; Only C2
    2020/06/18 09:36:05 87 10 173 180 198 0.5*1 ---- ---- 90 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Very Poor Event
    2020/06/18 14:25:03 263 42 198 247 562 12.5*1 ---- ---- 263 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Very Poor Event; Only C2
    2020/06/19 08:00:05 97 26 380 417 693 15.1*1 ---- ---- 98 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Poor Event; Only C2
    2020/06/19 10:48:05 92 32 334 359 474 5.6*1 ---- ---- 97 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Poor Event
    2020/06/21 00:24:05 92 21 167 60 0 -42.1*1 ---- ---- 97 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Very Poor Event; Only C2
    2020/06/21 03:12:08 270 54 262 280 370 3.3*1 ---- ---- 268 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Poor Event
    2020/06/21 06:24:05 88 44 456 502 633 9.6*1 ---- ---- 86 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Poor Event
    2020/06/22 12:00:05 264 51 181 288 521 13.9*1 ---- ---- 257 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Poor Event
    2020/06/22 19:36:05 257 90 173 224 240 1.9*1 ---- ---- 259 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Poor Event
    2020/06/23 14:00:05 277 50 171 188 345 4.0*1 ---- ---- 268 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Very Poor Event; Only C2
    2020/06/23 21:48:05 88 48 293 346 490 7.5*1 ---- ---- 94 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30
    2020/06/24 05:48:05 96 47 78 91 175 1.1*1 ---- ---- 89 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Poor Event; Only C2
    2020/06/24 06:00:05 269 18 142 150 174 0.5*1 ---- ---- 268 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Poor Event
    2020/06/24 12:25:20 92 49 171 154 0 -3.4*1 ---- ---- 96 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Only C2
    2020/06/26 03:47:45 277 52 108 110 151 0.5*1 ---- ---- 274 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Poor Event; Only C2
    2020/06/26 04:30:02 99 30 108 66 0 -9.7*1 ---- ---- 98 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Poor Event; Only C2
    2020/06/26 06:12:11 201 8 157 119 0 -11.4*1 ---- ---- 203 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Very Poor Event; Only C2
    2020/06/26 22:00:05 182 11 230 127 0 -28.1*1 ---- ---- 182 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Poor Event; Only C2
    2020/06/27 16:25:18 201 11 226 200 0 -14.1*1 ---- ---- 204 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Very Poor Event; Only C2
    2020/06/28 04:12:05 342 8 558 893 2397 235.0*1 ---- ---- 341 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Very Poor Event; Only C2
    2020/06/29 15:24:05 251 7 206 225 430 6.3*1 ---- ---- 259 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Very Poor Event; Only C2
    2020/06/29 16:12:05 213 10 367 318 0 -28.7*1 ---- ---- 212 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Poor Event; Only C2
    2020/06/29 21:05:09 97 40 141 75 0 -7.8*1 ---- ---- 101 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; Poor Event
    2020/06/30 23:12:10 276 50 171 158 0 -4.7*1 ---- ---- 257 C2 C3 PHTX DST Java Movie Fixed the MVI roll angle issue on 2026-01-30; 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).