• 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] Daily Movies
    and Plots     		Remarks
    2001/08/02 20:52:53 298 67 511 872 0 120.7*1 ---- ---- 296 C2 195 SXT PHTX DST Java Movie Poor Event; Only 3 points; Only C3
    2001/08/02 20:52:53 59 >123 453 579 537 7.7*1 3.0e+15*2 3.0e+30*2 48 C2 195 SXT PHTX DST Java Movie Uncertain Width; Partial Halo
    2001/08/02 21:54:05 245 8 583 418 67 -23.6*1 ---- ---- 240 C2 195 SXT PHTX DST Java Movie
    2001/08/03 16:54:06 108 13 651 534 392 -19.4 1.3e+14 2.8e+29 108 C2 C3 195 SXT PHTX DST Java Movie
    2001/08/04 03:30:11 140 40 160 --- --- --- ---- ---- 138 C2 C3 195 SXT PHTX DST Java Movie Difficult to measure the width; Very Poor Event; Only 2 points; Only C2
    2001/08/04 08:06:05 301 108 351 417 451 5.0 3.1e+15 1.9e+30 320 C2 C3 195 SXT PHTX DST Java Movie
    2001/08/05 02:54:05 194 98 168 182 414 6.1*1 5.6e+14 7.8e+28 206 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only C2
    2001/08/05 04:06:05 13 63 397 345 0 -18.8 1.3e+15 1.0e+30 11 C2 C3 195 SXT PHTX DST Java Movie
    2001/08/05 10:30:20 106 16 468 602 1025 40.4*1 2.0e+14 2.2e+29 112 C2 C3 195 SXT PHTX DST Java Movie
    2001/08/06 03:06:06 261 32 268 347 465 7.8 3.3e+14 1.2e+29 266 C2 C3 195 SXT PHTX DST Java Movie
    2001/08/06 19:54:05 248 11 409 298 0 -18.3*1 7.4e+15 6.2e+30 252 C2 C3 195 SXT PHTX DST Java Movie
    2001/08/07 06:30:05 110 15 901 662 445 -47.0 6.8e+14 2.8e+30 113 C2 C3 195 SXT PHTX DST Java Movie
    2001/08/07 16:30:05 259 37 428 373 192 -8.1 5.3e+14 4.9e+29 261 C2 C3 195 SXT PHTX DST Java Movie
    2001/08/07 18:30:05 12 79 172 258 596 14.8*1 2.4e+15 3.5e+29 13 C2 C3 195 SXT PHTX DST Java Movie
    2001/08/07 20:30:05 251 23 495 493 486 -0.5*1 2.3e+14 2.8e+29 255 C2 C3 195 SXT PHTX DST Java Movie
    2001/08/08 07:54:05 278 25 284 281 199 -1.8*1 2.0e+14*2 8.1e+28*2 282 C2 C3 195 SXT PHTX DST Java Movie Only C2
    2001/08/09 09:54:05 287 52 249 368 872 32.1*1 1.3e+15 4.1e+29 287 C2 C3 195 SXT PHTX DST Java Movie Only C2
    2001/08/09 10:30:21 285 175 479 526 544 4.4*1 ---- ---- 255 C2 C3 195 SXT PHTX DST Java Movie Not fastest feature; Partial Halo
    2001/08/09 20:06:05 202 14 305 333 350 1.9 1.4e+14 6.4e+28 211 C2 C3 195 SXT PHTX DST Java Movie
    2001/08/09 21:30:08 125 >100 909 965 949 7.2 6.3e+15 2.6e+31 125 C2 C3 195 SXT PHTX DST Java Movie Uncertain Width
    2001/08/10 02:06:05 259 106 376 346 257 -4.0*1 2.3e+15 1.6e+30 253 C2 C3 195 SXT PHTX DST Java Movie
    2001/08/10 21:08:04 45 9 548 780 1218 58.6 ---- ---- 42 C2 C3 195 SXT PHTX DST Java Movie
    2001/08/11 01:54:05 272 83 357 303 0 -8.7 8.8e+14 5.6e+29 275 C2 C3 195 SXT PHTX DST Java Movie
    2001/08/11 04:30:05 312 32 442 706 876 30.3 3.0e+15 3.0e+30 313 C2 C3 195 SXT PHTX DST Java Movie
    2001/08/11 05:30:05 113 32 267 294 379 4.1 2.7e+14 9.7e+28 107 C2 C3 195 SXT PHTX DST Java Movie Only C3
    2001/08/11 05:54:05 218 19 374 312 59 -7.8 4.9e+14 3.4e+29 223 C2 C3 195 SXT PHTX DST Java Movie
    2001/08/11 18:18:05 313 54 276 356 451 8.5 4.6e+14 1.8e+29 316 C2 C3 195 SXT PHTX DST Java Movie
    2001/08/12 01:31:48 248 27 861 824 425 -27.6*1 1.4e+14*2 5.3e+29*2 245 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    2001/08/12 08:06:05 310 23 246 237 0 -3.0 ---- ---- 305 C2 C3 195 SXT PHTX DST Java Movie Only C2
    2001/08/12 10:34:03 58 91 540 572 611 4.7 5.4e+15 7.8e+30 58 C2 C3 195 SXT PHTX DST Java Movie
    2001/08/12 16:30:05 235 48 361 304 144 -6.3 2.5e+14 1.7e+29 233 C2 C3 195 SXT PHTX DST Java Movie
    2001/08/12 17:30:07 293 53 265 295 385 3.8 5.2e+14 1.8e+29 308 C2 C3 195 SXT PHTX DST Java Movie
    2001/08/12 19:54:05 291 64 362 382 396 1.6*1 8.8e+14 5.8e+29 313 C2 C3 195 SXT PHTX DST Java Movie
    2001/08/13 01:31:45 264 112 320 271 46 -5.5*1 3.2e+14 1.6e+29 224 C2 C3 195 SXT PHTX DST Java Movie Difficult to measure the width
    2001/08/13 14:30:05 268 114 332 260 58 -6.5 2.5e+15 1.4e+30 308 C2 C3 195 SXT PHTX DST Java Movie
    2001/08/13 18:54:05 288 79 204 184 0 -2.7*1 6.6e+14 1.4e+29 304 C2 C3 195 SXT PHTX DST Java Movie
    2001/08/13 22:30:06 160 44 579 580 585 0.4 1.2e+15 2.0e+30 158 C2 C3 195 SXT PHTX DST Java Movie
    2001/08/13 23:54:05 60 66 643 612 218 -17.0*1 9.6e+14*2 2.0e+30*2 61 C2 C3 195 SXT PHTX DST Java Movie
    2001/08/14 16:01:28 Halo (BA) 360 618 601 625 -4.8*1 ---- ---- 38 C2 C3 195 SXT PHTX DST Java Movie MailLog1; Only C3
    2001/08/14 16:30:06 21 46 328 361 448 4.7 ---- ---- 27 C2 C3 195 SXT PHTX DST Java Movie
    2001/08/14 21:30:08 283 >127 371 391 449 3.3 1.1e+15*2 7.6e+29*2 320 C2 C3 195 SXT PHTX DST Java Movie Uncertain Width; Partial Halo
    2001/08/15 01:31:45 326 37 477 502 642 8.7 4.5e+14 5.1e+29 314 C2 C3 195 SXT PHTX DST Java Movie
    2001/08/15 02:54:05 28 93 370 586 649 16.6 2.5e+15 1.7e+30 29 C2 C3 195 SXT PHTX DST Java Movie
    2001/08/15 05:30:05 306 >99 516 484 339 -8.1 ---- ---- 316 C2 C3 195 SXT PHTX DST Java Movie Uncertain Width
    2001/08/15 10:30:22 333 23 311 215 0 -53.7*1 2.9e+14*2 1.4e+29*2 333 C2 C3 195 SXT PHTX DST Java Movie Only C2
    2001/08/15 23:54:05 Halo (BA) 360 1575 1413 1503 -31.7 ---- ---- 189 C2 C3 195 SXT PHTX DST Java Movie MailLog1
    2001/08/16 06:32:33 201 19 482 459 460 -1.7 1.0e+15 1.2e+30 210 C2 C3 195 SXT PHTX DST Java Movie
    2001/08/16 06:32:33 284 51 180 283 412 7.5*1 4.2e+15 6.8e+29 275 C2 C3 195 SXT PHTX DST Java Movie
    2001/08/16 10:32:50 272 59 928 679 834 -32.5 1.3e+16 5.5e+31 282 C2 C3 195 SXT PHTX DST Java Movie
    2001/08/16 23:54:05 65 40 278 331 496 8.1*1 2.7e+14 1.1e+29 54 C2 C3 195 SXT PHTX DST Java Movie
    2001/08/17 00:54:54 240 >156 503 422 446 -5.6 ---- ---- 235 C2 C3 195 SXT PHTX DST Java Movie Uncertain Width; Partial Halo
    2001/08/17 08:06:05 133 30 1003 1099 1098 16.5 2.8e+14 1.4e+30 147 C2 C3 195 SXT PHTX DST Java Movie
    2001/08/17 13:31:44 69 25 281 339 435 6.1*1 2.1e+14 8.3e+28 59 C2 C3 195 SXT PHTX DST Java Movie
    2001/08/17 15:30:05 287 24 937 791 311 -42.9*1 ---- ---- 279 C2 C3 195 SXT PHTX DST Java Movie Only 3 points
    2001/08/18 06:31:35 334 66 144 404 396 6.5 2.2e+15 2.3e+29 331 C2 C3 195 SXT PHTX DST Java Movie
    2001/08/18 14:31:33 168 29 223 295 711 20.0*1 3.4e+14 8.3e+28 167 C2 C3 195 SXT PHTX DST Java Movie Only C2
    2001/08/19 04:31:30 74 7 411 349 183 -8.3 ---- ---- 70 C2 C3 195 SXT PHTX DST Java Movie
    2001/08/19 06:06:05 Halo (OA) 360 556 645 601