• 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
    2011/08/01 02:24:05 79 16 264 267 287 0.6*1 ---- ---- 83 C2 C3 PHTX DST Java Movie Very Poor Event
    2011/08/01 11:00:06 62 13 343 313 282 -2.6*1 ---- ---- 55 C2 C3 PHTX DST Java Movie Very Poor Event
    2011/08/01 17:12:06 62 9 309 342 661 14.7*1 ---- ---- 62 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2011/08/01 22:12:06 50 32 232 228 186 -0.9*1 7.6e+13 2.1e+28 60 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2011/08/01 23:05:53 297 15 387 459 891 30.0*1 ---- ---- 299 C2 C3 PHTX DST Java Movie Only C2
    2011/08/02 00:36:05 98 43 375 321 195 -6.1*1 8.8e+14 6.2e+29 106 C2 C3 PHTX DST Java Movie
    2011/08/02 06:36:05 288 268 712 554 596 -15.5*1 5.1e+15*2 1.3e+31*2 285 C2 C3 PHTX DST Java Movie Partial Halo
    2011/08/02 09:36:06 292 15 518 478 178 -11.7*1 ---- ---- 298 C2 C3 PHTX DST Java Movie Poor Event
    2011/08/02 15:48:05 193 59 192 225 390 5.3*1 2.3e+13 4.3e+27 198 C2 C3 PHTX DST Java Movie Poor Event
    2011/08/02 18:36:05 340 14 158 167 330 3.6*1 ---- ---- 341 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2011/08/02 18:48:07 266 8 258 277 619 13.4*1 ---- ---- 266 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2011/08/03 00:12:05 342 7 501 601 1561 94.0*1 ---- ---- 345 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2011/08/03 01:25:48 247 33 154 190 305 3.4*1 4.7e+14 5.5e+28 244 C2 C3 PHTX DST Java Movie Very Poor Event
    2011/08/03 01:48:05 181 6 475 398 0 -73.3*1 ---- ---- 182 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2011/08/03 03:24:06 83 54 296 331 445 5.3*1 5.2e+13 2.3e+28 75 C2 C3 PHTX DST Java Movie Poor Event
    2011/08/03 14:00:07 Halo 360 610 492 480 -12.2*1 8.7e+15*2 1.6e+31*2 307 C2 C3 PHTX DST Java Movie
    2011/08/04 04:12:05 Halo 360 1315 1074 1208 -41.1 1.1e+16*2 9.3e+31*2 298 C2 C3 PHTX DST Java Movie
    2011/08/04 06:24:06 20 123 338 390 418 3.8 1.5e+15*2 8.6e+29*2 15 C2 C3 PHTX DST Java Movie Partial Halo
    2011/08/04 18:24:06 359 25 336 361 394 2.4*1 8.9e+13 5.0e+28 1 C2 C3 PHTX DST Java Movie
    2011/08/04 21:24:10 244 17 397 420 446 2.5*1 ---- ---- 245 C2 C3 PHTX DST Java Movie Very Poor Event
    2011/08/05 00:12:06 2 18 241 284 391 5.1*1 ---- ---- 7 C2 C3 PHTX DST Java Movie Poor Event
    2011/08/05 00:24:05 280 7 172 261 502 10.8*1 ---- ---- 281 C2 C3 PHTX DST Java Movie Very Poor Event
    2011/08/05 06:12:11 15 63 421 512 601 10.3*1 5.5e+14 4.9e+29 13 C2 C3 PHTX DST Java Movie Poor Event
    2011/08/05 07:12:05 243 14 287 340 574 11.6*1 ---- ---- 244 C2 C3 PHTX DST Java Movie Poor Event
    2011/08/05 07:12:05 101 22 110 139 417 6.9*1 4.7e+13 2.9e+27 104 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2011/08/06 01:25:47 300 9 300 469 1656 118.3*1 ---- ---- 297 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2011/08/06 06:00:06 21 53 259 188 0 -10.9*1 2.0e+14 6.6e+28 19 C2 C3 PHTX DST Java Movie Poor Event
    2011/08/06 10:24:05 249 38 338 418 403 3.8*1 1.6e+15 9.0e+29 249 C2 C3 PHTX DST Java Movie
    2011/08/06 17:24:05 289 37 176 188 278 2.0*1 5.1e+14 7.9e+28 294 C2 C3 PHTX DST Java Movie Only C2
    2011/08/06 23:12:07 263 26 436 424 405 -1.5 4.5e+14 4.3e+29 259 C2 C3 PHTX DST Java Movie
    2011/08/07 02:36:06 266 18 177 331 1194 59.8*1 ---- ---- 265 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2011/08/07 05:48:08 259 22 459 379 90 -11.4*1 7.0e+13 7.3e+28 257 C2 C3 PHTX DST Java Movie
    2011/08/07 09:48:05 263 26 460 399 278 -7.8*1 1.0e+14 1.1e+29 259 C2 C3 PHTX DST Java Movie
    2011/08/07 14:24:05 264 34 436 350 223 -9.3*1 2.7e+14 2.6e+29 260 C2 C3 PHTX DST Java Movie
    2011/08/07 19:36:06 262 19 468 512 719 13.8*1 ---- ---- 260 C2 C3 PHTX DST Java Movie Poor Event
    2011/08/07 23:05:57 263 17 481 491 547 3.3*1 ---- ---- 262 C2 C3 PHTX DST Java Movie
    2011/08/08 02:36:05 18 84 211 188 0 -4.1*1 1.2e+14 2.8e+28 3 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2011/08/08 16:00:06 269 33 757 1043 1500 83.8*1 1.3e+14 3.8e+29 265 C2 C3 PHTX DST Java Movie Poor Event
    2011/08/08 18:12:07 305 237 1343 1090 1207 -42.3 3.9e+15*2 3.5e+31*2 281 C2 C3 PHTX DST Java Movie Partial Halo
    2011/08/08 23:12:05 284 74 1070 715 0 -87.1*1 1.5e+14 8.7e+29 280 C2 C3 PHTX DST Java Movie
    2011/08/09 03:48:05 276 141 1146 1036 1035 -21.9 1.2e+15*2 7.8e+30*2 272 C2 C3 PHTX DST Java Movie Partial Halo
    2011/08/09 06:00:05 125 15 258 291 529 9.4*1 ---- ---- 127 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2011/08/09 08:12:06 Halo 360 1610 1419 1506 -40.6 1.1e+16*2 1.5e+32*2 279 C2 C3 PHTX DST Java Movie
    2011/08/09 14:00:05 291 71 428 419 337 -3.2*1 2.4e+14 2.2e+29 291 C2 C3 PHTX DST Java Movie Poor Event
    2011/08/10 05:00:06 9 49 294 405 912 32.8*1 9.2e+13 4.0e+28 8 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2011/08/10 07:36:06 15 43 108 139 321 4.0*1 2.5e+14 1.4e+28 15 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2011/08/10 11:00:07 265 9 699 401 0 -220.3*1 ---- ---- 265 C2 C3 PHTX DST Java Movie Poor Event
    2011/08/10 11:24:05 303 10 481 423 0 -21.9*1 ---- ---- 308 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2011/08/10 13:48:06 307 30 528 569 610 5.8*1 5.1e+14 7.1e+29 303 C2 C3 PHTX DST Java Movie
    2011/08/10 16:36:06 132 30 456 375 0 -26.2*1 5.6e+13 5.8e+28 132 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2011/08/10 16:36:06 57 73 375 369 361 -0.6 1.2e+15 8.4e+29 82 C2 C3 PHTX DST Java Movie
    2011/08/10 20:12:07 316 28 241 172 0 -21.4*1 3.4e+13 1.0e+28 311 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2011/08/11 06:12:05 314 19 381 428 693 15.3*1 ---- ---- 315 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2011/08/11 10:36:07 273 167 1160 1065 1109 -14.3 3.3e+15*2 2.2e+31*2 267 C2 C3 PHTX DST Java Movie Partial Halo
    2011/08/11 19:12:05 34 18 225 177 0 -9.5*1 ---- ---- 37 C2 C3 PHTX DST Java Movie Very Poor Event
    2011/08/11 20:00:07 261 23 223 237 309 2.3*1 2.7e+13 6.7e+27 264 C2 C3 PHTX DST Java Movie Very Poor Event
    2011/08/12 03:47:14 30 43 346 369 409 2.8*1 5.1e+14 3.0e+29 42 C2 C3 PHTX DST Java Movie
    2011/08/12 05:24:06 296 24 517 725 1566 97.9*1 1.5e+14 2.0e+29 300 C2 C3 PHTX DST Java Movie Only C2
    2011/08/12 06:24:06 43 112 319 494 450 7.7*1 2.9e+15 1.5e+30 35 C2 C3 PHTX DST Java Movie
    2011/08/12 12:48:07 297 82 532 444 439 -8.1 1.4e+15 1.9e+30 304 C2 C3 PHTX DST Java Movie
    2011/08/12 14:36:05 118 40 143 117 0 -7.3*1 1.4e+14 1.4e+28 118 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2011/08/12 21:24:10 35 24 317 389 951 38.2*1 1.0e+14 5.1e+28 32 C2 C3 PHTX DST Java Movie Very Poor Event
    2011/08/12 21:36:06 221 29 593 778 1154 48.5*1 6.7e+13 1.2e+29 223 C2 C3 PHTX DST Java Movie Very Poor Event
    2011/08/13 02:12:06 113 71 123 80 0 -8.2*1 3.4e+14 2.6e+28 111 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2011/08/13 06:00:07 116 57 90 105 259 2.5*1 6.3e+14 2.5e+28 120 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2011/08/13 06:48:05 46 38 206 219 298 2.1*1 2.3e+14 4.9e+28 42 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2011/08/13 09:12:09 118 58 171 159 0 -2.1*1 4.3e+14 6.3e+28 122 C2 C3 PHTX DST Java Movie
    2011/08/13 10:36:07 310 110 617 439 384 -20.6 1.9e+15 3.6e+30 306 C2 C3 PHTX DST Java Movie
    2011/08/13 14:00:05 14 7 302 359 473 6.7*1 ---- ---- 12 C2 C3 PHTX DST Java Movie Very Poor Event
    2011/08/14 02:00:07 15 9 391 352 85 -7.3*1 ---- ---- 13 C2 C3 PHTX DST Java Movie Very Poor Event
    2011/08/14 06:12:06 21 14 314 384 513 10.4*1 ---- ---- 22 C2 C3 PHTX DST Java Movie Very Poor Event
    2011/08/14 12:12:06 119 31 112 85 0 -4.3*1 1.4e+14 8.5e+27 116 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2011/08/14 14:48:07 234 26 496 558 687 11.8*1 2.3e+14 2.8e+29 237 C2 C3 PHTX DST Java Movie
    2011/08/14 15:36:06 295 64 603 660 726 9.4*1 5.6e+14 1.0e+30 295 C2 C3 PHTX DST Java Movie
    2011/08/14 20:57:28 12 13 258 251 202 -1.5*1 ---- ---- 18 C2 C3 PHTX DST Java Movie Very Poor Event
    2011/08/14 21:24:09 106 36 77 89 171 1.1*1 3.1e+14 9.3e+27 117 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2011/08/15 09:48:07 86 31 286 247 0 -10.7*1 1.1e+14 4.4e+28 83 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2011/08/15 11:36:07 207 14 244 291 440 7.3*1 ---- ---- 199 C2 C3 PHTX DST Java Movie Very Poor Event
    2011/08/16 02:48:05 267 55 527 627 921 27.4*1 4.4e+14 6.1e+29 257 C2 C3 PHTX DST Java Movie
    2011/08/16 09:12:09 328 158 492 379 332 -11.0*1 3.7e+15*2 4.5e+30*2 341 C2 C3 PHTX DST Java Movie Poor Event; Partial Halo
    2011/08/16 10:12:06 37 43 392 689 977 39.4*1 7.6e+14 5.8e+29 36 C2 C3 PHTX DST Java Movie Poor Event
    2011/08/16 10:48:07 295 27 239 361 347 4.4*1 9.6e+14 2.7e+29 300 C2 C3 PHTX DST Java Movie
    2011/08/16 12:36:05 129 31 172 228 636 16.1*1 4.2e+13 6.2e+27 123 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2011/08/16 20:12:05 299 14 255 298 375 3.9*1 ---- ---- 302 C2 C3 PHTX DST Java Movie Poor Event
    2011/08/17 02:48:07 114 110 550 490 520 -4.2 3.3e+15 4.9e+30 110 C2 C3 PHTX DST Java Movie
    2011/08/17 03:36:06 218 7 291 211 0 -33.8*1 ---- ---- 222 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2011/08/17 03:48:06 288 10 702 451 0 -140.4*1 ---- ---- 286 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2011/08/17 04:00:06 21 41 692 649 654 -4.4 7.8e+14 1.9e+30 29 C2 C3 PHTX DST Java Movie
    2011/08/18 12:12:06 321 33 212 282 572 12.6*1 2.8e+14 6.4e+28 320 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2011/08/18 13:26:20 297 49 94 93 56 -0.3*1 4.0e+14 1.8e+28 308 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2011/08/19 14:48:27 192 10 245 525 2388 235.5*1 ---- ---- 191 C2 C3 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2011/08/20 04:24:05 291 7 392 365 0 -26.0*1 ---- ---- 291 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2011/08/20 10:00:05 116 30 112 144 305 3.6*1 3.0e+14 1.9e+28 111 C2 C3 PHTX DST Java Movie Very Poor Event
    2011/08/20 22:36:05 198 62 317 394 478 7.7*1 3.2e+13 1.6e+28 208 C2 C3 PHTX DST Java Movie Poor Event
    2011/08/21 01:36:20 23 15 459 631 1189 55.3*1 ---- ---- 27 C2 C3 PHTX DST Java Movie Poor Event
    2011/08/21 15:36:06 208 5 342 546 2142 188.6*1 ---- ---- 210 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2011/08/21 19:36:07 36 11 349 256 0 -51.1*1 ---- ---- 39 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2011/08/21 21:24:10 207 6 532 526 305 -8.2*1 ---- ---- 213 C2 C3 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2011/08/22 10:48:05 85 60 254 199 0 -21.9*1 1.4e+13 4.4e+27 89 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2011/08/22 14:00:05 288 30 203 268 709 19.9*1 8.2e+13 1.7e+28 287 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2011/08/22 16:12:07 15 9 193 252 385 5.4*1 ---- ---- 9 C2 C3 PHTX DST Java Movie Very Poor Event
    2011/08/23 06:00:06 322 7 294 309 440 5.4*1 ---- ---- 324 C2 C3 PHTX DST Java Movie Very Poor Event
    2011/08/23 13:25:47 26 10 481 653 1530 95.8*1 ---- ---- 27 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2011/08/23 14:24:05 289 9 201 189 0 -2.2*1 ---- ---- 292 C2 C3 PHTX DST Java Movie Very Poor Event
    2011/08/23 23:58:18 Halo 360 312 443 440 6.6*1 9.7e+15*2 4.7e+30*2 248 C2 C3 PHTX DST Java Movie
    2011/08/24 00:57:21 94 49 241 226 202 -1.0*1 1.2e+15 3.5e+29 85 C2 C3 PHTX DST Java Movie Poor Event
    2011/08/24 11:17:54 253 15 207 159 0 -10.0*1 ---- ---- 255 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2011/08/24 21:07:51 317 37 123 193 626 16.1*1 2.0e+14 1.5e+28 318 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2011/08/24 23:05:52 223 10 311 441 655 16.3*1 ---- ---- 224 C2 C3 PHTX DST Java Movie Very Poor Event
    2011/08/24 23:50:10 17 38 205 380 942 36.7*1 2.0e+14 4.1e+28 15 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2011/08/25 01:18:39 77 10 318 350 455 6.1*1 ---- ---- 66 C2 C3 PHTX DST Java Movie Very Poor Event
    2011/08/25 03:16:42 26 55 142 278 590 14.8*1 2.8e+14 2.8e+28 21 C2 C3 PHTX DST Java Movie Very Poor Event
    2011/08/25 06:43:21 224 11 237 268 348 3.4*1 ---- ---- 226 C2 C3 PHTX DST Java Movie Very Poor Event
    2011/08/25 08:56:17 248 55 318 315 295 -0.7*1 3.0e+14 1.5e+29 264 C2 C3 PHTX DST Java Movie Poor Event
    2011/08/25 16:04:18 32 15 328 362 431 4.0*1 ---- ---- 35 C2 C3 PHTX DST Java Movie Poor Event
    2011/08/25 18:02:22 38 10 285 273 243 -1.2*1 ---- ---- 38 C2 C3 PHTX DST Java Movie Poor Event
    2011/08/25 19:01:25 284 15 307 292 228 -2.1*1 ---- ---- 289 C2 C3 PHTX DST Java Movie Poor Event
    2011/08/26 01:36:21 292 26 305 236 0 -14.2*1 1.3e+14 6.1e+28 298 C2 C3 PHTX DST Java Movie
    2011/08/26 07:48:05 307 28 242 325 463 7.7*1 1.6e+14 4.7e+28 320 C2 C3 PHTX DST Java Movie Poor Event
    2011/08/26 10:36:08 86 15 247 317 400 5.6*1 ---- ---- 81 C2 C3 PHTX DST Java Movie Very Poor Event
    2011/08/26 17:36:05 311 18 294 350 657 15.3*1 ---- ---- 311 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2011/08/27 13:25:48 338 98 148 270 351 5.2*1 2.0e+15 2.2e+29 336 C2 C3 PHTX DST Java Movie Poor Event
    2011/08/28 04:48:05 305 72 433 552 1066 42.7*1 4.5e+14 4.2e+29 301 C2 C3 PHTX DST Java Movie Only C2
    2011/08/28 06:00:06 322 88 500 649 606 9.7 4.8e+15 6.0e+30 315 C2 C3 PHTX DST Java Movie
    2011/08/28 14:00:06 326 70 521 470 490 -3.5 9.4e+14 1.3e+30 327 C2 C3 PHTX DST Java Movie
    2011/08/28 20:48:06 95 42 193 177 0 -4.9*1 4.0e+13 7.4e+27 95 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2011/08/29 00:48:06 324 15 310 380 567 11.3*1 ---- ---- 315 C2 C3 PHTX DST Java Movie Poor Event
    2011/08/29 04:12:07 341 34 309 348 450 5.3*1 1.5e+14 7.2e+28 345 C2 C3 PHTX DST Java Movie Poor Event
    2011/08/29 12:00:05 308 41 264 270 298 0.9*1 2.6e+14 9.0e+28 311 C2 C3 PHTX DST Java Movie Very Poor Event
    2011/08/29 15:36:07 353 44 243 303 599 13.4*1 5.9e+14 1.7e+29 355 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2011/08/30 10:12:07 270 43 214 302 706 19.8*1 3.2e+14 7.4e+28 278 C2 C3 PHTX DST Java Movie Only C2
    2011/08/30 12:12:07 276 59 340 430 864 27.9*1 3.3e+14 1.9e+29 291 C2 C3 PHTX DST Java Movie Only C2
    2011/08/30 14:00:05 274 61 288 346 673 16.4*1 1.7e+14 7.0e+28 287 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2011/08/30 16:12:07 343 28 264 328 576 12.5*1 3.3e+12 1.2e+27 343 C2 C3 PHTX DST Java Movie Very Poor Event
    2011/08/30 21:48:08 342 7 253 243 38 -3.0*1 ---- ---- 343 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2011/08/31 00:00:06 307 15 422 394 0 -9.0*1 ---- ---- 299 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).