• 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
    2019/05/01 00:12:05 234 19 238 151 0 -44.1*1 ---- ---- 239 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2019/05/01 05:12:06 121 121 328 299 271 -2.2 1.4e+15*2 7.6e+29*2 120 C2 C3 PHTX DST Java Movie Partial Halo
    2019/05/01 15:48:05 84 47 175 67 0 -67.6*1 2.1e+14 3.2e+28 88 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2019/05/01 16:36:05 86 75 338 195 0 -15.2*1 1.0e+15 5.9e+29 79 C2 C3 PHTX DST Java Movie
    2019/05/02 15:36:05 96 74 142 196 453 8.2*1 5.7e+14 5.7e+28 94 C2 C3 PHTX DST Java Movie
    2019/05/03 02:48:05 84 9 224 188 0 -9.1*1 ---- ---- 87 C2 C3 PHTX DST Java Movie Poor Event
    2019/05/03 11:00:05 76 24 249 287 400 5.0*1 6.9e+12 2.1e+27 78 C2 C3 PHTX DST Java Movie Poor Event
    2019/05/03 15:12:05 79 44 202 210 301 2.2*1 8.6e+13 1.8e+28 80 C2 C3 PHTX DST Java Movie Only C2
    2019/05/03 18:24:05 118 134 500 421 379 -7.9 1.9e+15*2 2.4e+30*2 115 C2 C3 PHTX DST Java Movie Partial Halo
    2019/05/03 23:24:05 90 113 692 728 744 4.9 3.5e+15 8.3e+30 68 C2 C3 PHTX DST Java Movie
    2019/05/04 13:12:06 60 11 324 441 685 18.6*1 ---- ---- 65 C2 C3 PHTX DST Java Movie Poor Event
    2019/05/04 16:36:05 117 22 247 316 722 20.1*1 1.1e+14 3.4e+28 120 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2019/05/04 16:48:05 93 33 441 555 638 13.9*1 1.5e+14 1.5e+29 97 C2 C3 PHTX DST Java Movie Poor Event
    2019/05/04 21:48:05 109 12 445 595 976 40.8*1 ---- ---- 113 C2 C3 PHTX DST Java Movie Poor Event
    2019/05/04 23:24:06 67 40 315 291 0 -5.5*1 4.8e+14 2.4e+29 66 C2 C3 PHTX DST Java Movie
    2019/05/05 05:12:05 64 29 349 450 530 10.0*1 1.2e+14 7.6e+28 61 C2 C3 PHTX DST Java Movie
    2019/05/05 06:24:05 189 8 326 222 0 -100.3*1 ---- ---- 189 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2019/05/05 07:24:05 98 22 460 522 712 15.5*1 4.5e+13 4.7e+28 100 C2 C3 PHTX DST Java Movie Poor Event
    2019/05/05 14:36:05 60 15 264 297 356 3.1*1 ---- ---- 64 C2 C3 PHTX DST Java Movie Poor Event
    2019/05/05 15:12:09 186 14 559 530 0 -20.2*1 ---- ---- 188 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2019/05/05 17:24:05 77 29 379 375 354 -0.9*1 1.8e+13 1.3e+28 77 C2 C3 PHTX DST Java Movie Poor Event
    2019/05/05 21:12:08 112 11 335 269 0 -18.9*1 ---- ---- 111 C2 C3 PHTX DST Java Movie Very Poor Event
    2019/05/06 00:24:05 60 33 290 313 407 3.9*1 1.1e+14 4.7e+28 65 C2 C3 PHTX DST Java Movie Poor Event
    2019/05/06 05:36:06 53 53 239 181 0 -13.1*1 3.1e+14 8.9e+28 55 C2 C3 PHTX DST Java Movie
    2019/05/06 05:48:05 108 22 541 626 715 13.0*1 1.3e+14 1.9e+29 107 C2 C3 PHTX DST Java Movie
    2019/05/06 08:24:05 50 52 128 160 437 7.5*1 9.8e+14 8.1e+28 47 C2 C3 PHTX DST Java Movie Only C2
    2019/05/06 09:36:05 65 72 310 357 434 4.8 1.6e+15 7.7e+29 74 C2 C3 PHTX DST Java Movie
    2019/05/06 11:12:05 41 91 153 320 361 5.6*1 1.7e+15 2.0e+29 34 C2 C3 PHTX DST Java Movie Poor Event
    2019/05/06 13:48:05 114 14 383 425 505 6.0*1 ---- ---- 116 C2 C3 PHTX DST Java Movie
    2019/05/06 15:36:05 112 15 449 508 514 4.9*1 ---- ---- 115 C2 C3 PHTX DST Java Movie
    2019/05/06 21:12:10 216 233 93 83 0 -1.4*1 7.4e+13*2 3.2e+27*2 141 C2 C3 PHTX DST Java Movie Poor Event; Only C2; Partial Halo
    2019/05/07 02:36:05 99 52 338 379 389 2.6*1 3.5e+14 2.0e+29 86 C2 C3 PHTX DST Java Movie
    2019/05/07 12:00:07 102 11 306 381 749 23.0*1 ---- ---- 105 C2 C3 PHTX DST Java Movie Poor Event
    2019/05/07 13:00:05 48 14 278 360 1241 61.4*1 ---- ---- 55 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2019/05/07 23:17:54 111 76 549 108 627 -55.2 1.0e+15 1.5e+30 103 C2 C3 PHTX DST Java Movie Only C3
    2019/05/08 03:12:11 257 9 422 507 1010 37.2*1 ---- ---- 260 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2019/05/08 03:48:05 92 96 745 637 698 -9.7 2.0e+15 5.5e+30 102 C2 C3 PHTX DST Java Movie
    2019/05/09 06:48:05 278 34 212 221 359 3.6*1 5.4e+13 1.2e+28 278 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2019/05/09 06:48:05 105 40 334 381 790 22.4*1 2.1e+13 1.2e+28 107 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2019/05/10 02:48:07 122 10 231 294 683 20.3*1 ---- ---- 120 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2019/05/11 03:12:10 334 86 191 236 298 2.7*1 7.7e+14 1.4e+29 300 C2 C3 PHTX DST Java Movie Poor Event
    2019/05/11 04:48:05 286 229 137 140 162 0.3*1 9.1e+14*2 8.5e+28*2 315 C2 C3 PHTX DST Java Movie Poor Event; Only C2; Partial Halo
    2019/05/12 03:12:09 319 15 128 152 220 1.6*1 ---- ---- 309 C2 C3 PHTX DST Java Movie Poor Event
    2019/05/12 04:12:05 92 36 253 324 443 6.9*1 9.0e+13 2.9e+28 96 C2 C3 PHTX DST Java Movie Poor Event
    2019/05/12 20:24:05 201 255 305 314 332 0.9*1 1.7e+15*2 8.0e+29*2 132 C2 C3 PHTX DST Java Movie Partial Halo
    2019/05/13 07:24:05 276 34 323 339 403 3.0*1 3.5e+13 1.8e+28 271 C2 C3 PHTX DST Java Movie Poor Event
    2019/05/13 14:12:05 247 5 226 302 933 35.3*1 ---- ---- 250 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2019/05/13 16:48:05 107 17 214 270 533 10.7*1 ---- ---- 105 C2 C3 PHTX DST Java Movie Poor Event
    2019/05/13 17:00:05 231 97 364 417 476 5.3*1 6.1e+14 4.0e+29 236 C2 C3 PHTX DST Java Movie Poor Event
    2019/05/13 19:48:06 275 11 290 305 378 2.9*1 ---- ---- 275 C2 C3 PHTX DST Java Movie Poor Event
    2019/05/13 22:30:05 94 13 198 169 0 -5.2*1 ---- ---- 94 C2 C3 PHTX DST Java Movie Very Poor Event; Only C3
    2019/05/14 18:24:05 248 9 255 340 989 39.3*1 ---- ---- 247 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2019/05/15 14:36:05 210 8 264 555 2351 228.5*1 ---- ---- 213 C2 C3 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2019/05/16 06:12:07 282 7 327 309 67 -5.5*1 ---- ---- 272 PHTX DST Java Movie Very Poor Event
    2019/05/16 14:48:05 285 6 221 252 410 6.3*1 ---- ---- 278 PHTX DST Java Movie Very Poor Event
    2019/05/17 09:12:09 353 7 305 455 1821 140.3*1 ---- ---- 352 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2019/05/17 20:00:06 69 37 39 63 181 1.4*1 1.7e+14 1.3e+27 79 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2019/05/18 11:36:05 267 51 284 431 467 8.2*1 2.1e+15 8.4e+29 266 C2 C3 PHTX DST Java Movie
    2019/05/18 16:12:05 84 17 218 178 0 -6.0*1 ---- ---- 88 C2 C3 PHTX DST Java Movie Very Poor Event
    2019/05/19 12:12:05 78 14 465 174 0 -261.5*1 ---- ---- 76 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2019/05/19 13:25:41 294 5 140 43 0 -93.7*1 ---- ---- 293 C2 C3 PHTX DST Java Movie Poor Event; Only 3 points; Only C2
    2019/05/21 08:36:05 260 49 378 407 420 2.3 1.7e+15 1.2e+30 255 C2 C3 PHTX DST Java Movie
    2019/05/22 15:12:09 264 29 168 203 632 15.7*1 1.9e+13 2.6e+27 259 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2019/05/23 01:25:42 93 15 139 184 551 12.3*1 ---- ---- 89 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2019/05/23 04:36:05 95 10 107 182 296 3.7*1 ---- ---- 94 C2 C3 PHTX DST Java Movie Poor Event
    2019/05/24 08:48:25 213 11 236 590 2747 314.1*1 ---- ---- 215 C2 C3 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2019/05/24 15:36:06 85 9 189 276 1057 53.8*1 ---- ---- 90 C2 C3 PHTX DST Java Movie Very Poor Event
    2019/05/25 08:51:31 86 47 183 240 359 4.9 1.0e+14 1.7e+28 98 C2 C3 PHTX DST Java Movie
    2019/05/26 14:24:05 270 5 147 188 638 19.8*1 ---- ---- 271 C2 C3 PHTX DST Java Movie Very Poor Event
    2019/05/29 02:00:05 232 8 300 257 0 -40.3*1 ---- ---- 235 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2019/05/30 13:48:05 279 9 222 225 236 0.4*1 ---- ---- 277 C2 C3 PHTX DST Java Movie Poor Event
    2019/05/30 19:48:05 73 19 145 158 336 3.9*1 ---- ---- 77 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2019/05/31 00:48:05 75 8 172 181 239 1.5*1 ---- ---- 79 C2 C3 PHTX DST Java Movie Poor Event
    2019/05/31 06:36:05 266 37 128 134 209 1.2*1 1.2e+14 9.7e+27 268 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2019/05/31 16:30:15 279 24 328 320 229 -2.5*1 1.7e+13 8.9e+27 282 C2 C3 PHTX DST Java Movie 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).