• 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
    2011/02/01 12:24:07 265 13 350 401 466 5.3*1 ---- ---- 270 C2 C3 195 PHTX DST Java Movie Poor Event
    2011/02/01 15:48:06 263 8 199 242 386 5.6*1 ---- ---- 266 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2011/02/01 20:00:06 288 77 79 94 238 2.2*1 3.1e+14 9.6e+27 295 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2011/02/01 23:24:12 Halo 360 437 381 272 -6.7*1 1.5e+15*2 1.5e+30*2 4 C2 C3 195 PHTX DST Java Movie Poor Event
    2011/02/02 07:36:05 302 50 357 486 609 12.9*1 8.2e+14 5.2e+29 307 C2 C3 195 PHTX DST Java Movie
    2011/02/04 19:48:05 229 8 295 301 380 2.5*1 ---- ---- 233 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2
    2011/02/04 20:00:06 81 5 192 155 0 -22.1*1 ---- ---- 83 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2011/02/05 00:00:05 282 81 641 862 935 27.3*1 1.3e+15 2.6e+30 296 C2 C3 195 PHTX DST Java Movie
    2011/02/05 18:00:06 243 8 276 300 506 7.9*1 ---- ---- 247 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2
    2011/02/06 10:24:05 355 7 350 463 1183 56.0*1 ---- ---- 357 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2011/02/06 19:24:05 75 10 252 240 0 -3.4*1 ---- ---- 71 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2011/02/06 21:36:05 188 7 452 498 954 30.9*1 ---- ---- 191 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2011/02/07 18:24:05 45 9 216 284 735 21.3*1 ---- ---- 48 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2011/02/08 12:12:06 47 21 161 202 538 11.2*1 3.2e+13 4.2e+27 45 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2011/02/09 00:12:06 41 32 209 247 541 10.9*1 6.4e+13 1.4e+28 44 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2011/02/09 11:00:07 228 5 379 391 541 6.4*1 ---- ---- 231 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2011/02/09 15:12:05 92 127 353 379 400 2.2 2.4e+15*2 1.5e+30*2 91 C2 C3 PHTX DST Java Movie Partial Halo
    2011/02/10 00:12:05 191 158 121 285 360 5.4*1 2.0e+15*2 1.5e+29*2 239 C2 C3 PHTX DST Java Movie Partial Halo
    2011/02/10 13:48:05 108 22 261 216 0 -7.8*1 6.5e+13 2.2e+28 108 C2 C3 PHTX DST Java Movie Poor Event
    2011/02/10 14:12:06 302 68 338 394 671 15.1*1 3.4e+14 1.9e+29 299 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2011/02/11 01:36:05 87 45 136 171 360 4.9*1 3.1e+14 2.8e+28 90 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2011/02/11 02:24:06 248 19 243 353 878 30.9*1 ---- ---- 247 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2011/02/11 08:48:36 282 23 175 223 636 16.1*1 1.4e+14 2.2e+28 280 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2011/02/11 13:24:06 81 93 190 163 69 -1.7 1.3e+15 2.4e+29 90 C2 C3 PHTX DST Java Movie
    2011/02/11 17:48:05 337 18 264 193 0 -11.3*1 ---- ---- 340 C2 C3 PHTX DST Java Movie Very Poor Event
    2011/02/11 22:12:10 77 114 469 413 352 -6.3 2.6e+15 2.8e+30 105 C2 C3 PHTX DST Java Movie
    2011/02/12 01:24:05 187 25 357 397 792 21.8*1 3.4e+13 2.1e+28 190 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2011/02/12 06:12:11 97 14 305 329 375 2.6*1 ---- ---- 99 C2 C3 PHTX DST Java Movie
    2011/02/12 21:24:05 93 20 349 413 577 10.2*1 1.2e+14 7.2e+28 97 C2 C3 PHTX DST Java Movie Poor Event
    2011/02/13 03:24:06 62 50 299 225 0 -10.7*1 2.7e+14 1.2e+29 71 C2 C3 PHTX DST Java Movie Poor Event
    2011/02/13 09:12:10 273 94 438 494 878 26.0*1 2.1e+14 2.0e+29 281 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2011/02/13 14:12:05 296 51 267 370 925 34.3*1 1.2e+14 4.1e+28 293 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2011/02/13 18:36:05 359 276 373 517 793 24.4*1 9.6e+14*2 6.7e+29*2 89 C2 C3 PHTX DST Java Movie Poor Event; Partial Halo
    2011/02/13 20:12:05 287 15 268 242 0 -7.0*1 ---- ---- 284 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2011/02/14 08:12:06 288 57 303 316 484 6.3*1 1.2e+13 5.7e+27 294 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2011/02/14 11:00:05 51 7 217 283 419 7.4*1 ---- ---- 49 C2 C3 PHTX DST Java Movie Very Poor Event
    2011/02/14 14:00:07 306 22 380 299 0 -23.3*1 2.8e+13 2.0e+28 310 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2011/02/14 17:24:05 263 38 229 207 0 -8.5*1 2.8e+14 7.3e+28 270 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2011/02/14 18:24:05 Halo 360 326 356 449 4.6*1 8.6e+14*2 4.6e+29*2 315 C2 C3 PHTX DST Java Movie Poor Event
    2011/02/15 02:24:05 Halo 360 669 508 471 -18.3 4.3e+15*2 9.7e+30*2 189 C2 C3 PHTX DST Java Movie
    2011/02/15 18:24:06 50 29 415 440 593 8.3*1 4.0e+13 3.5e+28 61 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2011/02/15 23:05:56 279 50 326 485 1300 68.2*1 1.1e+14 5.9e+28 276 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2011/02/16 00:00:07 274 96 270 297 477 6.9*1 6.6e+13 2.4e+28 280 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2011/02/16 02:36:06 51 92 411 497 482 5.1 2.3e+15 2.0e+30 35 C2 C3 PHTX DST Java Movie
    2011/02/16 23:11:11 276 86 535 727 657 12.2 2.2e+15 3.1e+30 285 C2 C3 PHTX DST Java Movie
    2011/02/17 01:00:05 31 20 252 201 0 -54.2*1 1.9e+13*2 6.0e+27*2 25 C2 C3 PHTX DST Java Movie Very Poor Event; Only C3
    2011/02/17 03:24:05 21 10 283 350 478 7.6*1 ---- ---- 27 C2 C3 PHTX DST Java Movie Poor Event
    2011/02/17 05:36:05 28 24 385 480 620 12.6*1 1.9e+14 1.4e+29 26 C2 C3 PHTX DST Java Movie Poor Event
    2011/02/17 14:36:05 222 10 308 258 0 -28.9*1 ---- ---- 224 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2011/02/17 17:00:07 97 7 251 309 552 11.0*1 ---- ---- 103 C2 C3 PHTX DST Java Movie Poor Event
    2011/02/17 22:36:05 286 82 490 694 1468 84.9*1 1.7e+14 2.0e+29 289 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2011/02/18 02:12:05 11 4 305 300 283 -0.7*1 ---- ---- 17 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2011/02/18 04:48:05 219 12 471 529 1209 53.6*1 ---- ---- 221 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2011/02/18 05:24:07 265 144 346 335 235 -3.0*1 7.5e+12*2 4.5e+27*2 281 C2 C3 195 PHTX DST Java Movie Very Poor Event; Partial Halo
    2011/02/18 12:12:05 281 89 350 588 1513 93.8*1 6.6e+13 4.0e+28 272 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2
    2011/02/18 17:12:06 312 99 259 298 305 1.7 8.0e+14 2.7e+29 310 C2 C3 195 PHTX DST Java Movie
    2011/02/19 00:16:54 3 15 331 282 0 -21.2*1 ---- ---- 3 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2011/02/19 04:25:42 277 62 445 258 0 -27.6*1 2.2e+14 2.2e+29 258 C2 C3 195 PHTX DST Java Movie Poor Event
    2011/02/19 17:36:07 320 14 335 345 368 1.3*1 ---- ---- 318 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2011/02/19 21:24:06 321 14 196 219 312 2.8*1 ---- ---- 325 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2011/02/19 23:05:54 218 3 259 153 0 -114.0*1 ---- ---- 223 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2011/02/20 04:12:07 83 23 444 353 0 -42.2*1 2.1e+13 2.1e+28 83 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2011/02/20 17:36:06 76 20 425 374 0 -19.8*1 8.0e+13 7.2e+28 73 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2011/02/21 18:48:05 302 13 454 781 2031 172.3*1 ---- ---- 304 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2011/02/21 19:00:07 46 12 248 309 864 29.5*1 ---- ---- 44 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2011/02/22 05:48:05 15 14 278 288 322 1.4*1 ---- ---- 17 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2011/02/22 09:48:05 317 5 266 116 0 -77.2*1 ---- ---- 317 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2011/02/22 11:00:05 40 53 210 205 157 -0.9*1 1.4e+14 3.0e+28 35 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2011/02/22 19:24:06 260 43 134 105 0 -3.3*1 4.3e+14 3.9e+28 268 C2 C3 195 PHTX DST Java Movie
    2011/02/23 03:12:09 313 13 758 1031 1842 134.1*1 ---- ---- 309 C2 C3 195 PHTX DST Java Movie Poor Event
    2011/02/23 03:36:06 122 32 206 237 412 6.2*1 2.4e+13 5.0e+27 112 C2 C3 195 PHTX DST Java Movie Poor Event
    2011/02/23 14:12:05 59 13 74 77 131 0.5*1 ---- ---- 60 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2011/02/23 18:00:06 65 61 225 544 1442 88.9*1 5.3e+13 1.3e+28 81 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2
    2011/02/24 00:48:06 121 32 51 146 384 6.1 2.1e+15 2.8e+28 117 C2 C3 195 PHTX DST Java Movie Only C2
    2011/02/24 02:36:05 56 71 146 117 0 -3.3*1 2.8e+13 3.0e+27 78 C2 C3 195 PHTX DST Java Movie Poor Event
    2011/02/24 07:48:05 70 158 1186 1035 1117 -22.4 7.5e+15*2 5.3e+31*2 96 C2 C3 195 PHTX DST Java Movie Partial Halo
    2011/02/25 02:24:05 317 14 681 730 1027 27.2*1 ---- ---- 314 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2
    2011/02/25 06:12:06 74 23 478 564 925 29.0*1 7.3e+13 8.4e+28 71 C2 C3 195 PHTX DST Java Movie Poor Event
    2011/02/25 07:12:07 86 16 435 417 284 -5.2*1 ---- ---- 95 C2 C3 195 PHTX DST Java Movie Poor Event
    2011/02/25 08:00:05 349 63 370 470 596 12.0*1 6.5e+14 4.5e+29 341 C2 C3 195 PHTX DST Java Movie Poor Event
    2011/02/25 16:36:05 285 12 570 731 1539 90.1*1 ---- ---- 284 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2
    2011/02/25 20:24:06 300 126 198 253 390 5.6*1 6.3e+14*2 1.2e+29*2 319 C2 C3 195 PHTX DST Java Movie Very Poor Event; Partial Halo
    2011/02/26 05:50:11 83 10 227 279 462 7.5*1 ---- ---- 83 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2011/02/26 14:12:08 332 20 436 619 1029 43.1*1 2.6e+10 2.4e+25 322 C2 C3 195 PHTX DST Java Movie Poor Event
    2011/02/26 15:36:05 93 9 274 290 535 9.2*1 ---- ---- 94 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2
    2011/02/26 20:54:06 16 172 379 --- --- --- ---- ---- 35 C2 C3 195 PHTX DST Java Movie data gap; Poor Event; Only 2 points; Partial Halo
    2011/02/27 10:48:05 82 56 336 364 541 8.2*1 5.6e+14 3.2e+29 98 C2 C3 195 PHTX DST Java Movie
    2011/02/27 18:12:06 33 36 173 176 181 0.2*1 1.8e+14 2.7e+28 28 C2 C3 195 PHTX DST Java Movie Poor Event
    2011/02/28 13:48:05 87 30 341 390 750 19.9*1 8.1e+13 4.7e+28 79 C2 C3 195 PHTX DST Java Movie Poor Event

    *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).