• 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
    2016/08/01 03:48:05 293 20 186 257 422 6.9*1 2.6e+13 4.4e+27 297 C2 C3 PHTX DST Java Movie Poor Event
    2016/08/01 11:12:05 252 14 527 508 220 -10.4*1 ---- ---- 264 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2016/08/01 15:24:07 249 11 310 468 1597 107.4*1 ---- ---- 254 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2016/08/02 05:24:05 97 22 466 366 0 -14.5*1 4.3e+13 4.6e+28 102 C2 C3 PHTX DST Java Movie
    2016/08/02 14:24:05 46 8 319 429 1196 59.0*1 ---- ---- 48 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2016/08/02 17:24:05 93 30 197 255 598 13.9*1 7.3e+12 1.4e+27 97 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2016/08/03 07:00:05 18 6 251 235 0 -11.5*1 ---- ---- 17 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2016/08/03 07:12:05 91 16 160 168 262 1.9*1 ---- ---- 87 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2016/08/03 11:12:05 296 10 207 226 489 8.3*1 ---- ---- 296 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2016/08/03 17:36:05 104 99 202 314 261 2.5 5.7e+14 1.2e+29 88 C2 C3 PHTX DST Java Movie
    2016/08/04 12:48:06 338 112 106 144 320 4.2*1 1.8e+13 1.0e+27 342 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2016/08/05 00:12:05 98 10 243 277 325 2.7*1 ---- ---- 95 C2 C3 PHTX DST Java Movie Very Poor Event
    2016/08/05 07:12:05 97 11 258 295 474 7.5*1 ---- ---- 98 C2 C3 PHTX DST Java Movie Very Poor Event
    2016/08/05 12:12:05 304 33 387 665 887 31.9*1 7.2e+12 5.4e+27 300 C2 C3 PHTX DST Java Movie
    2016/08/05 17:12:07 84 17 362 526 1220 60.5*1 ---- ---- 82 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2016/08/06 03:12:08 256 55 521 579 614 6.7*1 2.7e+14 3.7e+29 260 C2 C3 PHTX DST Java Movie
    2016/08/06 19:12:05 273 16 294 333 614 12.8*1 ---- ---- 272 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2016/08/07 15:24:07 238 29 165 223 986 40.0*1 2.1e+13 2.9e+27 239 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2016/08/07 17:24:05 268 7 323 433 1172 54.7*1 ---- ---- 267 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2016/08/07 19:48:06 112 11 551 1079 1948 160.4*1 ---- ---- 108 C2 C3 PHTX DST Java Movie Poor Event
    2016/08/07 23:36:05 243 45 234 467 663 18.3*1 2.7e+14 7.4e+28 237 C2 C3 PHTX DST Java Movie Poor Event
    2016/08/08 05:24:05 88 29 363 423 532 7.8*1 1.5e+12 9.6e+26 90 C2 C3 PHTX DST Java Movie
    2016/08/08 09:24:07 276 20 578 539 476 -6.6*1 8.0e+13 1.3e+29 273 C2 C3 PHTX DST Java Movie
    2016/08/08 11:12:05 87 24 347 503 1161 53.8*1 2.1e+12 1.3e+27 94 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2016/08/08 15:12:06 110 16 376 464 982 37.0*1 ---- ---- 108 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2016/08/08 16:00:05 56 36 289 747 598 17.3*1 8.4e+14 3.5e+29 58 C2 C3 PHTX DST Java Movie Poor Event
    2016/08/08 16:24:05 247 38 398 420 491 4.1*1 7.1e+13 5.7e+28 250 C2 C3 PHTX DST Java Movie Poor Event
    2016/08/08 20:48:06 260 84 674 456 628 -15.3 1.1e+13 2.4e+28 273 C2 C3 PHTX DST Java Movie
    2016/08/09 01:25:43 311 66 128 180 214 1.6*1 1.6e+14 1.3e+28 311 C2 C3 PHTX DST Java Movie Poor Event
    2016/08/09 09:36:06 67 10 380 476 521 8.3*1 ---- ---- 66 C2 C3 PHTX DST Java Movie Poor Event
    2016/08/09 13:48:05 74 18 227 249 386 4.4*1 ---- ---- 78 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2016/08/10 01:36:14 71 14 214 243 469 7.8*1 ---- ---- 75 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2016/08/10 04:00:06 70 55 368 464 453 5.2*1 3.9e+13 2.7e+28 70 C2 C3 PHTX DST Java Movie
    2016/08/10 07:24:05 314 23 232 326 598 14.3*1 6.3e+13 1.7e+28 313 C2 C3 PHTX DST Java Movie Poor Event
    2016/08/10 20:48:05 234 38 151 264 955 37.4*1 9.2e+12 1.1e+27 239 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2016/08/11 16:24:05 261 84 363 677 937 36.8*1 3.3e+12 2.2e+27 276 C2 C3 PHTX DST Java Movie Poor Event
    2016/08/12 06:12:11 74 65 120 201 248 2.5*1 1.8e+15 1.3e+29 78 C2 C3 PHTX DST Java Movie Poor Event
    2016/08/12 19:12:05 248 133 350 292 0 -7.4*1 1.4e+14*2 8.4e+28*2 277 C2 C3 PHTX DST Java Movie Partial Halo
    2016/08/13 12:48:05 68 9 398 399 399 0.0*1 ---- ---- 72 C2 C3 PHTX DST Java Movie Poor Event
    2016/08/13 18:00:06 51 132 591 712 695 10.5 3.4e+13*2 5.9e+28*2 37 C2 C3 PHTX DST Java Movie Partial Halo
    2016/08/13 23:36:05 334 11 230 377 995 41.8*1 ---- ---- 333 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2016/08/14 06:48:05 335 5 401 435 768 19.0*1 ---- ---- 334 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2016/08/14 12:24:05 61 16 316 372 415 4.8*1 ---- ---- 63 C2 C3 PHTX DST Java Movie Poor Event
    2016/08/14 16:24:07 72 81 64 100 191 1.5*1 5.8e+13 1.2e+27 74 C2 C3 PHTX DST Java Movie Poor Event
    2016/08/15 04:36:05 5 8 293 319 605 12.5*1 ---- ---- 9 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2016/08/15 15:29:56 275 11 565 656 1172 47.9*1 ---- ---- 275 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2016/08/15 17:24:05 75 98 633 504 584 -9.0 1.4e+15 2.8e+30 67 C2 C3 PHTX DST Java Movie
    2016/08/16 00:48:05 315 7 238 253 457 6.6*1 ---- ---- 315 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2016/08/16 07:00:05 307 9 216 237 723 20.4*1 ---- ---- 306 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2016/08/16 07:24:06 69 26 433 594 583 10.8 1.5e+14 1.4e+29 69 C2 C3 PHTX DST Java Movie
    2016/08/16 17:36:05 283 28 269 317 427 5.4*1 3.5e+13 1.3e+28 279 C2 C3 PHTX DST Java Movie Poor Event
    2016/08/17 09:48:05 68 12 250 335 527 10.6*1 ---- ---- 72 C2 C3 PHTX DST Java Movie Poor Event
    2016/08/17 18:12:05 122 37 27 47 108 0.5*1 2.5e+14 8.9e+26 116 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2016/08/17 20:00:05 79 49 205 333 529 11.5*1 1.9e+14 4.0e+28 78 C2 C3 PHTX DST Java Movie Poor Event
    2016/08/18 12:24:05 272 34 832 819 781 -4.4*1 6.5e+12 2.2e+28 266 C2 C3 PHTX DST Java Movie Poor Event
    2016/08/18 13:48:05 271 24 271 315 500 8.5*1 1.1e+13 4.2e+27 267 C2 C3 PHTX DST Java Movie Poor Event
    2016/08/18 17:48:05 88 59 249 372 377 5.2*1 8.9e+14 2.8e+29 82 C2 C3 PHTX DST Java Movie
    2016/08/19 00:12:05 311 100 67 182 294 3.7*1 1.1e+13 2.5e+26 312 C2 C3 PHTX DST Java Movie Poor Event
    2016/08/19 01:25:43 270 49 90 73 0 -2.9*1 1.6e+13 6.6e+26 267 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2016/08/19 05:48:05 123 24 293 444 431 7.3*1 5.6e+14 2.4e+29 120 C2 C3 PHTX DST Java Movie
    2016/08/19 06:12:11 99 26 242 281 364 3.8*1 1.6e+14 4.5e+28 103 C2 C3 PHTX DST Java Movie Poor Event
    2016/08/19 13:48:06 305 47 336 275 0 -7.7*1 9.1e+11 5.1e+26 312 C2 C3 PHTX DST Java Movie Poor Event
    2016/08/20 18:12:05 58 38 156 365 610 17.3*1 1.5e+13 1.9e+27 58 C2 C3 PHTX DST Java Movie Very Poor Event
    2016/08/22 00:24:05 294 25 127 226 662 18.1*1 1.3e+13 1.0e+27 297 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2016/08/22 12:48:05 115 15 268 320 459 8.1*1 ---- ---- 116 C2 C3 PHTX DST Java Movie Poor Event
    2016/08/22 21:27:59 306 35 220 260 371 4.7*1 1.7e+14 4.1e+28 307 C2 C3 PHTX DST Java Movie Poor Event
    2016/08/23 05:12:05 247 12 302 370 774 22.6*1 ---- ---- 248 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2016/08/23 11:00:05 284 35 323 501 1176 57.1*1 3.1e+13 1.6e+28 288 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2016/08/23 12:48:05 50 12 282 292 363 2.4*1 ---- ---- 52 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2016/08/23 18:12:05 38 7 127 111 0 -1.6*1 ---- ---- 39 C2 C3 PHTX DST Java Movie Very Poor Event
    2016/08/25 02:12:05 282 20 414 566 1232 60.3*1 1.3e+12 1.2e+27 280 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2016/08/25 04:24:05 125 10 487 567 756 21.0*1 ---- ---- 126 C2 C3 PHTX DST Java Movie Very Poor Event
    2016/08/25 10:24:05 121 17 365 478 939 35.6*1 ---- ---- 126 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2016/08/26 02:24:16 32 14 283 353 820 26.7*1 ---- ---- 32 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2016/08/26 09:48:05 317 81 171 170 166 -0.1*1 3.5e+13 5.2e+27 310 C2 C3 PHTX DST Java Movie
    2016/08/26 16:24:07 309 86 122 229 325 4.7*1 9.7e+13 7.2e+27 324 C2 C3 PHTX DST Java Movie Poor Event
    2016/08/27 00:12:05 32 19 229 187 0 -12.5*1 ---- ---- 31 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2016/08/28 12:00:05 85 50 107 136 375 5.6*1 1.9e+12 1.1e+26 84 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2016/08/28 16:36:05 83 57 309 351 613 12.8*1 6.7e+13 3.2e+28 91 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2016/08/29 00:36:06 81 80 180 208 278 2.3*1 2.8e+14 4.5e+28 80 C2 C3 PHTX DST Java Movie Poor Event
    2016/08/29 04:24:05 284 54 281 255 98 -3.5*1 7.1e+12 2.8e+27 292 C2 C3 PHTX DST Java Movie
    2016/08/29 23:12:07 291 64 271 328 332 2.6 1.0e+15 3.7e+29 297 C2 C3 PHTX DST Java Movie
    2016/08/30 02:12:05 105 30 576 743 1215 53.6*1 4.9e+14 8.2e+29 107 C2 C3 PHTX DST Java Movie Poor Event
    2016/08/30 03:12:09 97 55 579 528 451 -8.1*1 6.1e+14 1.0e+30 100 C2 C3 PHTX DST Java Movie
    2016/08/30 08:00:05 86 75 312 366 400 3.8 1.1e+12 5.5e+26 76 C2 C3 PHTX DST Java Movie
    2016/08/30 14:48:05 33 36 171 254 645 16.7*1 8.1e+13 1.2e+28 34 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2016/08/30 22:24:06 315 35 204 257 367 4.8*1 2.7e+13 5.5e+27 313 C2 C3 PHTX DST Java Movie Poor Event
    2016/08/31 01:25:25 229 97 183 519 430 8.0*1 1.2e+15 2.0e+29 238 C2 C3 PHTX DST Java Movie Poor Event
    2016/08/31 01:36:05 82 12 267 277 292 0.9*1 ---- ---- 85 C2 C3 PHTX DST Java Movie Very Poor Event
    2016/08/31 22:36:05 287 50 179 213 492 9.8*1 5.0e+12 8.0e+26 299 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).