• 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
    2016/04/01 00:12:06 9 10 188 236 622 17.9*1 ---- ---- 21 C2 C3 PHTX DST Java Movie Very Poor Event
    2016/04/01 10:36:05 245 51 170 208 318 3.5*1 2.7e+14 3.9e+28 248 C2 C3 PHTX DST Java Movie Poor Event
    2016/04/01 18:36:04 342 20 439 673 1436 84.8*1 4.5e+13 4.4e+28 354 C2 C3 PHTX DST Java Movie Poor Event
    2016/04/01 20:00:04 32 10 177 268 548 12.8*1 ---- ---- 34 C2 C3 PHTX DST Java Movie Very Poor Event
    2016/04/02 00:00:04 127 64 47 75 145 0.9*1 6.4e+14 7.1e+27 113 C2 C3 PHTX DST Java Movie Very Poor Event
    2016/04/02 17:24:04 149 123 326 461 470 7.6*1 9.1e+14*2 4.8e+29*2 123 C2 C3 PHTX DST Java Movie Poor Event; Partial Halo
    2016/04/02 19:36:05 4 29 327 390 435 5.3*1 1.4e+13 7.8e+27 13 C2 C3 PHTX DST Java Movie
    2016/04/02 22:36:04 26 12 256 252 231 -0.7*1 ---- ---- 33 C2 C3 PHTX DST Java Movie Very Poor Event
    2016/04/03 01:25:43 241 32 219 282 378 5.1*1 1.0e+14 2.4e+28 234 C2 C3 PHTX DST Java Movie
    2016/04/03 07:24:04 124 10 365 264 0 -35.5*1 ---- ---- 110 C2 C3 PHTX DST Java Movie Very Poor Event
    2016/04/04 03:24:04 51 129 444 669 573 11.0 7.6e+15*2 7.5e+30*2 53 C2 C3 PHTX DST Java Movie Partial Halo
    2016/04/04 19:00:04 63 16 427 522 739 21.3*1 ---- ---- 61 C2 C3 PHTX DST Java Movie Poor Event
    2016/04/05 05:12:05 240 58 361 604 865 30.5*1 4.0e+14 2.6e+29 250 C2 C3 PHTX DST Java Movie
    2016/04/05 09:12:09 49 12 278 266 112 -3.4*1 ---- ---- 49 C2 C3 PHTX DST Java Movie Poor Event
    2016/04/05 12:00:04 353 134 226 479 476 9.6 4.2e+15*2 1.1e+30*2 337 C2 C3 PHTX DST Java Movie Partial Halo
    2016/04/06 08:24:04 335 14 486 502 556 4.3*1 ---- ---- 328 C2 C3 PHTX DST Java Movie Poor Event
    2016/04/06 14:36:04 316 19 343 634 1182 62.7*1 ---- ---- 321 C2 C3 PHTX DST Java Movie Poor Event
    2016/04/06 15:12:08 330 129 353 492 465 6.9 3.2e+15*2 2.0e+30*2 344 C2 C3 PHTX DST Java Movie Partial Halo
    2016/04/06 23:12:08 342 31 527 595 857 22.9*1 4.9e+13 6.8e+28 336 C2 C3 PHTX DST Java Movie Poor Event
    2016/04/07 02:24:05 26 12 565 668 981 31.2*1 ---- ---- 25 C2 C3 PHTX DST Java Movie Very Poor Event
    2016/04/07 08:48:04 51 38 384 428 491 4.9*1 3.6e+14 2.6e+29 48 C2 C3 PHTX DST Java Movie
    2016/04/07 19:12:04 249 38 289 353 463 7.4*1 9.1e+13 3.8e+28 249 C2 C3 PHTX DST Java Movie Poor Event
    2016/04/07 23:24:04 252 111 510 460 441 -4.9 1.3e+15 1.7e+30 265 C2 C3 PHTX DST Java Movie
    2016/04/07 23:48:04 36 14 97 123 259 2.6*1 ---- ---- 37 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2016/04/08 11:48:04 71 97 325 374 436 4.8*1 2.4e+14 1.3e+29 59 C2 C3 PHTX DST Java Movie
    2016/04/08 18:48:04 240 26 405 471 517 6.2*1 4.2e+14 3.4e+29 246 C2 C3 PHTX DST Java Movie Poor Event
    2016/04/08 19:12:04 25 17 191 128 0 -6.7*1 ---- ---- 22 C2 C3 PHTX DST Java Movie Very Poor Event
    2016/04/08 23:24:05 86 55 185 203 262 1.7 8.5e+14 1.5e+29 104 C2 C3 PHTX DST Java Movie
    2016/04/09 13:25:43 73 88 420 458 489 3.8*1 3.4e+14 3.0e+29 71 C2 C3 PHTX DST Java Movie
    2016/04/09 19:36:06 180 118 206 207 207 0.0*1 1.5e+13 3.3e+27 171 C2 C3 PHTX DST Java Movie Poor Event
    2016/04/09 23:24:04 113 14 196 235 464 9.0*1 ---- ---- 111 C2 C3 PHTX DST Java Movie Poor Event
    2016/04/10 03:12:08 107 30 213 344 512 11.2*1 1.2e+14 2.7e+28 111 C2 C3 PHTX DST Java Movie Poor Event
    2016/04/10 06:48:04 43 137 356 585 568 12.7*1 5.5e+15*2 3.5e+30*2 42 C2 C3 PHTX DST Java Movie Partial Halo
    2016/04/10 11:12:05 26 136 543 547 547 0.4 4.6e+15*2 6.7e+30*2 25 C2 C3 PHTX DST Java Movie Partial Halo
    2016/04/10 18:24:04 113 14 351 418 796 24.3*1 ---- ---- 121 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2016/04/11 00:24:04 316 62 291 215 0 -15.6*1 2.6e+14 1.1e+29 319 C2 C3 PHTX DST Java Movie Only C2
    2016/04/11 00:48:04 38 62 192 225 327 3.6*1 1.1e+14 2.1e+28 26 C2 C3 PHTX DST Java Movie
    2016/04/11 16:51:47 322 35 96 82 0 -2.1*1 7.3e+12 3.4e+26 311 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2016/04/12 02:00:05 150 236 269 307 316 1.8*1 3.6e+15*2 1.3e+30*2 186 C2 C3 PHTX DST Java Movie Partial Halo
    2016/04/12 03:36:04 88 92 155 218 359 4.9 1.1e+15 1.3e+29 92 C2 C3 PHTX DST Java Movie
    2016/04/12 07:24:05 282 58 165 143 0 -6.3*1 6.5e+13 8.9e+27 282 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2016/04/12 13:25:31 71 41 149 186 342 4.3*1 6.3e+15 7.0e+29 65 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2016/04/12 17:12:04 66 49 169 156 0 -1.7*1 1.2e+14 1.7e+28 62 C2 C3 PHTX DST Java Movie Poor Event
    2016/04/13 00:24:06 64 18 354 136 0 -90.6*1 ---- ---- 65 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2016/04/13 00:36:04 325 6 193 268 749 23.0*1 ---- ---- 328 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2016/04/13 04:00:06 323 20 216 222 254 0.9*1 1.8e+14 4.3e+28 320 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2016/04/13 11:12:04 140 19 171 161 0 -1.9*1 ---- ---- 148 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2016/04/13 12:12:05 119 12 130 43 0 -154.7*1 ---- ---- 119 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2016/04/13 18:00:04 301 60 327 353 422 3.6*1 1.0e+15 5.6e+29 308 C2 C3 PHTX DST Java Movie
    2016/04/13 21:12:08 57 10 413 559 1788 133.4*1 ---- ---- 59 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2016/04/13 21:48:04 311 8 248 288 452 7.2*1 ---- ---- 305 C2 C3 PHTX DST Java Movie Poor Event
    2016/04/13 23:24:04 275 7 407 252 0 -94.9*1 ---- ---- 273 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2016/04/14 07:24:04 298 46 90 102 249 2.3*1 6.7e+13 2.7e+27 301 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2016/04/14 10:00:05 297 21 153 195 645 16.6*1 3.1e+13 3.6e+27 297 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2016/04/14 11:24:04 298 65 214 269 523 10.3*1 3.6e+14 8.3e+28 299 C2 C3 PHTX DST Java Movie Only C2
    2016/04/14 16:00:05 299 50 144 132 0 -2.2*1 1.2e+14 1.2e+28 297 C2 C3 PHTX DST Java Movie Only C2
    2016/04/14 20:12:04 305 56 188 239 612 14.6*1 7.6e+13 1.3e+28 306 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2016/04/15 00:12:04 283 21 117 129 286 2.9*1 2.4e+13 1.7e+27 286 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2016/04/15 06:12:10 31 17 268 251 0 -7.2*1 ---- ---- 29 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2016/04/15 08:00:04 119 60 83 348 287 3.2*1 8.6e+15 3.0e+29 124 C2 C3 PHTX DST Java Movie
    2016/04/15 10:36:04 77 28 232 296 401 5.3*1 4.1e+14 1.1e+29 81 C2 C3 PHTX DST Java Movie
    2016/04/15 11:36:04 1 11 345 366 599 10.9*1 ---- ---- 357 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2016/04/15 15:24:04 75 30 171 109 0 -8.6*1 3.5e+14 5.0e+28 75 C2 C3 PHTX DST Java Movie Very Poor Event
    2016/04/16 20:24:04 269 88 267 194 0 -7.0 1.9e+15 6.8e+29 280 C2 C3 PHTX DST Java Movie
    2016/04/17 04:12:05 273 25 326 373 688 16.3*1 2.1e+13 1.1e+28 277 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2016/04/17 06:00:04 75 8 323 138 0 -91.0*1 ---- ---- 78 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2016/04/17 10:00:05 275 44 89 120 218 1.9*1 2.8e+12 1.1e+26 269 C2 C3 PHTX DST Java Movie Very Poor Event
    2016/04/17 10:36:04 73 13 334 448 710 19.0*1 ---- ---- 79 C2 C3 PHTX DST Java Movie
    2016/04/17 20:48:04 290 29 231 302 508 10.7*1 4.4e+12 1.2e+27 288 C2 C3 PHTX DST Java Movie Very Poor Event
    2016/04/17 23:12:09 290 64 457 470 554 4.6 7.0e+14 7.3e+29 288 C2 C3 PHTX DST Java Movie
    2016/04/18 00:48:04 275 162 1084 895 1041 -24.6 1.1e+16*2 6.3e+31*2 291 C2 C3 PHTX DST Java Movie Partial Halo
    2016/04/18 22:36:05 266 30 372 449 532 8.2*1 9.8e+14 6.8e+29 266 C2 C3 PHTX DST Java Movie
    2016/04/19 09:36:04 20 51 185 156 0 -4.8*1 1.2e+14 2.0e+28 20 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2016/04/19 14:12:04 267 11 270 386 1013 41.8*1 ---- ---- 269 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2016/04/20 04:24:06 22 11 532 603 1337 66.2*1 ---- ---- 25 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2016/04/20 19:48:04 9 8 367 395 614 11.0*1 ---- ---- 12 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2016/04/20 22:24:04 72 30 273 267 248 -0.7*1 3.5e+14 1.3e+29 78 C2 C3 PHTX DST Java Movie Poor Event
    2016/04/21 08:36:04 98 19 290 228 0 -32.9*1 ---- ---- 99 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2016/04/21 19:48:04 106 12 244 266 649 15.3*1 ---- ---- 105 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2016/04/22 00:12:04 42 34 175 165 54 -1.3*1 1.8e+14 2.8e+28 44 C2 C3 PHTX DST Java Movie Poor Event
    2016/04/22 07:24:08 46 15 282 394 669 20.4*1 ---- ---- 47 C2 C3 PHTX DST Java Movie Poor Event
    2016/04/22 13:25:42 286 20 156 110 0 -15.8*1 4.9e+13 6.0e+27 282 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2016/04/22 14:24:04 248 18 294 666 1271 67.1*1 ---- ---- 247 C2 C3 PHTX DST Java Movie Very Poor Event
    2016/04/22 21:12:09 357 6 441 415 0 -14.9*1 ---- ---- 1 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2016/04/22 21:24:04 94 34 268 303 381 4.3*1 3.9e+10 1.4e+25 94 C2 C3 PHTX DST Java Movie Very Poor Event
    2016/04/22 21:48:04 55 19 91 62 0 -11.8*1 ---- ---- 57 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2016/04/23 09:12:08 353 6 309 495 1701 124.6*1 ---- ---- 357 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2016/04/23 14:36:05 45 39 146 96 0 -9.2*1 1.2e+14 1.3e+28 50 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2016/04/23 22:12:05 82 25 129 95 0 -11.3*1 5.0e+13 4.2e+27 79 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2016/04/24 00:36:04 342 5 262 491 1438 86.3*1 ---- ---- 346 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2016/04/24 01:26:15 56 15 157 135 0 -11.1*1 ---- ---- 53 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2016/04/24 01:48:04 84 23 314 601 1041 45.7*1 1.4e+14 7.0e+28 80 C2 C3 PHTX DST Java Movie Poor Event
    2016/04/24 04:12:04 354 237 490 457 451 -2.9 3.7e+15*2 4.4e+30*2 1 C2 C3 PHTX DST Java Movie Partial Halo
    2016/04/24 06:48:04 118 59 187 171 0 -3.5*1 4.7e+14 8.2e+28 118 C2 C3 PHTX DST Java Movie Only C2
    2016/04/24 12:12:04 322 140 173 343 352 5.2*1 1.9e+15*2 2.8e+29*2 328 C2 C3 PHTX DST Java Movie Partial Halo
    2016/04/24 20:48:05 133 22 259 218 0 -6.6*1 6.5e+13 2.2e+28 125 C2 C3 PHTX DST Java Movie Poor Event
    2016/04/24 23:24:04 Halo 360 381 454 959 33.9*1 5.5e+12*2 4.0e+27*2 164 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2016/04/25 03:12:09 34 12 319 380 472 7.2*1 ---- ---- 41 C2 C3 PHTX DST Java Movie Poor Event
    2016/04/25 05:12:04 Halo 360 538 380 144 -19.3*1 7.6e+14*2 1.1e+30*2 78 C2 C3 PHTX DST Java Movie Poor Event
    2016/04/25 14:12:04 116 33 402 418 416 1.0 6.0e+13 4.9e+28 115 C2 C3 PHTX DST Java Movie
    2016/04/26 03:36:04 126 10 558 817 816 24.9*1 ---- ---- 117 C2 C3 PHTX DST Java Movie Very Poor Event
    2016/04/26 09:48:04 302 6 239 377 1381 80.1*1 ---- ---- 301 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2016/04/26 11:24:04 126 7 252 268 311 1.8*1 ---- ---- 118 C2 C3 PHTX DST Java Movie Very Poor Event
    2016/04/26 11:48:04 279 5 214 112 0 -35.2*1 ---- ---- 276 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2016/04/26 11:48:04 23 19 265 412 773 25.2*1 ---- ---- 31 C2 C3 PHTX DST Java Movie Very Poor Event
    2016/04/26 17:36:04 289 33 378 327 139 -7.0*1 5.3e+14 3.8e+29 293 C2 C3 PHTX DST Java Movie Poor Event
    2016/04/26 20:24:04 50 56 249 258 287 1.0*1 6.2e+14 1.9e+29 64 C2 C3 PHTX DST Java Movie
    2016/04/27 01:36:15 43 24 113 87 0 -12.2*1 5.0e+13 3.2e+27 41 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2016/04/27 01:48:04 121 26 334 404 531 8.9*1 9.2e+13 5.1e+28 109 C2 C3 PHTX DST Java Movie Poor Event
    2016/04/27 05:00:04 50 63 401 346 310 -4.8*1 9.9e+14 7.9e+29 37 C2 C3 PHTX DST Java Movie Poor Event
    2016/04/27 20:36:04 75 68 175 102 0 -14.8*1 8.5e+13 1.3e+28 72 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2016/04/29 02:24:04 99 12 248 299 597 13.4*1 ---- ---- 104 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2016/04/29 05:00:04 68 81 463 384 306 -8.3*1 3.8e+14 4.1e+29 51 C2 C3 PHTX DST Java Movie
    2016/04/29 07:12:04 325 14 270 225 0 -32.2*1 ---- ---- 325 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2016/04/29 11:12:04 78 13 764 480 0 -72.1*1 ---- ---- 83 C2 C3 PHTX DST Java Movie Poor Event
    2016/04/29 16:00:35 249 52 217 235 293 1.9*1 3.1e+14 7.3e+28 260 C2 C3 PHTX DST Java Movie
    2016/04/29 21:12:07 36 29 349 194 0 -16.9*1 2.7e+13 1.6e+28 29 C2 C3 PHTX DST Java Movie Poor Event
    2016/04/30 01:25:44 318 30 236 223 0 -2.8*1 1.4e+13 3.9e+27 326 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2016/04/30 02:48:04 46 15 287 222 0 -9.5*1 ---- ---- 54 C2 C3 PHTX DST Java Movie Very Poor Event
    2016/04/30 06:24:05 47 13 465 725 699 18.1*1 ---- ---- 52 C2 C3 PHTX DST Java Movie Poor Event
    2016/04/30 12:36:04 54 20 173 405 1455 87.9*1 3.5e+13 5.2e+27 54 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2016/04/30 17:48:04 50 29 364 450 544 9.1*1 6.7e+14 4.5e+29 56 C2 C3 PHTX DST Java Movie Poor Event
    2016/04/30 23:24:04 353 7 239 243 304 1.6*1 ---- ---- 353 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).