• 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
    1999/05/01 03:26:14 306 33 189 169 0 -5.4*1 ---- ---- 309 C2 C3 195 SXT PHTX DST Java Movie Only 3 points; Only C2
    1999/05/01 06:26:05 306 34 211 125 0 -30.1*1 1.9e+14*2 4.3e+28*2 305 C2 C3 195 SXT PHTX DST Java Movie Only C2
    1999/05/01 09:26:05 296 51 236 194 0 -8.7*1 4.7e+14 1.3e+29 309 C2 C3 195 SXT PHTX DST Java Movie Only C2
    1999/05/01 16:50:05 200 19 579 816 905 29.0 1.9e+14 3.2e+29 207 C2 C3 195 SXT PHTX DST Java Movie
    1999/05/01 21:50:06 48 54 134 154 294 3.1*1 1.4e+15 1.2e+29 54 C2 C3 195 SXT PHTX DST Java Movie Only C2
    1999/05/02 10:26:05 302 55 345 303 0 -13.1*1 ---- ---- 310 C2 C3 195 SXT PHTX DST Java Movie
    1999/05/02 12:50:05 244 23 424 664 830 29.6 9.0e+14 8.1e+29 249 C2 C3 195 SXT PHTX DST Java Movie
    1999/05/02 15:06:05 175 104 177 216 274 2.8*1 1.3e+15 2.1e+29 185 C2 C3 195 SXT PHTX DST Java Movie Difficult to measure the width; Poor Event; Only C3
    1999/05/02 15:50:05 47 48 398 428 520 5.8*1 1.1e+15 8.8e+29 40 C2 C3 195 SXT PHTX DST Java Movie
    1999/05/02 19:26:48 48 41 284 317 477 7.4*1 1.3e+15 5.1e+29 58 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/05/03 06:06:05 Halo (OA) 360 1584 1658 1628 15.8 ---- ---- 88 C2 C3 195 SXT PHTX DST Java Movie
    1999/05/03 23:50:07 72 11 401 504 796 22.4 7.9e+13 6.3e+28 70 C2 C3 195 SXT PHTX DST Java Movie
    1999/05/04 07:51:48 90 40 147 80 0 -35.9*1 ---- ---- 87 C2 C3 195 SXT PHTX DST Java Movie Only 3 points; Only C2
    1999/05/05 10:26:05 44 18 406 412 416 0.6 2.8e+13 2.3e+28 51 C2 C3 195 SXT PHTX DST Java Movie
    1999/05/05 15:50:06 85 42 649 644 637 -1.0 4.8e+14 1.0e+30 82 C2 C3 195 SXT PHTX DST Java Movie
    1999/05/06 00:50:05 80 55 436 337 0 -22.5*1 6.8e+14 6.4e+29 80 C2 C3 195 SXT PHTX DST Java Movie
    1999/05/06 16:26:06 336 41 264 267 271 0.2*1 ---- ---- 332 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/05/07 02:06:05 5 120 299 266 180 -3.1 1.4e+15 6.3e+29 15 C2 C3 195 SXT PHTX DST Java Movie
    1999/05/07 03:26:05 74 53 420 422 427 0.3*1 4.8e+14 4.2e+29 74 C2 C3 195 SXT PHTX DST Java Movie
    1999/05/07 05:06:05 75 13 398 395 378 -0.8*1 2.0e+14 1.6e+29 74 C2 C3 195 SXT PHTX DST Java Movie
    1999/05/07 07:26:51 64 120 490 491 492 0.1*1 1.8e+15 2.2e+30 81 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/05/08 01:50:05 281 113 569 650 718 13.1*1 1.0e+15 1.7e+30 278 C2 C3 195 SXT PHTX DST Java Movie
    1999/05/08 09:06:05 65 37 772 740 712 -5.7*1 7.6e+14 2.3e+30 65 C2 C3 195 SXT PHTX DST Java Movie
    1999/05/08 11:26:05 46 73 736 693 413 -18.3*1 ---- ---- 71 C2 C3 195 SXT PHTX DST Java Movie Only 3 points
    1999/05/08 14:50:05 284 125 641 508 585 -11.0 5.4e+15*2 1.1e+31*2 268 C2 C3 195 SXT PHTX DST Java Movie Partial Halo
    1999/05/08 16:26:05 69 12 316 306 298 -0.7*1 1.7e+14 8.7e+28 69 C2 C3 195 SXT PHTX DST Java Movie
    1999/05/09 00:26:05 64 25 427 453 468 2.5 5.5e+14 5.0e+29 65 C2 C3 195 SXT PHTX DST Java Movie
    1999/05/09 14:27:49 279 106 152 134 0 -2.5*1 2.3e+15 2.7e+29 307 C2 C3 195 SXT PHTX DST Java Movie
    1999/05/09 18:27:49 296 172 615 574 599 -3.0 ---- ---- 316 C2 C3 195 SXT PHTX DST Java Movie Partial Halo
    1999/05/09 23:50:06 103 17 843 735 704 -16.9 2.2e+14 7.7e+29 104 C2 C3 195 SXT PHTX DST Java Movie
    1999/05/10 05:50:05 Halo (OA) 360 920 802 853 -14.1 ---- ---- 70 C2 C3 195 SXT PHTX DST Java Movie
    1999/05/10 17:59:23 286 143 681 587 34 -25.9 1.4e+15*2 3.2e+30*2 318 C2 C3 195 SXT PHTX DST Java Movie Partial Halo
    1999/05/11 04:26:06 336 38 461 491 523 3.7 1.4e+15 1.4e+30 353 C2 C3 195 SXT PHTX DST Java Movie
    1999/05/11 10:51:46 242 31 227 231 253 0.6*1 3.7e+13 9.6e+27 239 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/05/11 22:26:05 86 193 735 734 734 -0.1 ---- ---- 110 C2 C3 195 SXT PHTX DST Java Movie Partial Halo
    1999/05/12 04:26:06 60 46 256 255 253 -0.1*1 7.6e+14 2.5e+29 60 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/05/12 07:26:47 265 46 224 178 0 -14.4*1 ---- ---- 275 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2006/02/21; Poor Event
    1999/05/12 15:50:06 336 67 363 352 295 -2.2*1 4.1e+14 2.7e+29 339 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/05/12 18:50:05 229 52 672 596 463 -17.3*1 2.1e+15 4.7e+30 234 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/05/13 23:26:07 311 105 351 374 443 4.3*1 1.2e+15 7.7e+29 312 C2 C3 195 SXT PHTX DST Java Movie
    1999/05/14 03:06:05 55 63 609 817 720 14.2 6.0e+15 1.1e+31 51 C2 C3 195 SXT PHTX DST Java Movie
    1999/05/14 06:50:05 234 46 592 589 591 -0.2 2.7e+15 4.7e+30 236 C2 C3 195 SXT PHTX DST Java Movie
    1999/05/14 22:26:05 141 43 223 210 18 -2.4*1 5.2e+14 1.3e+29 138 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only C2
    1999/05/16 17:51:35 33 45 502 480 340 -6.6*1 1.8e+14 2.3e+29 32 C2 C3 195 SXT PHTX DST Java Movie
    1999/05/17 00:50:07 293 113 503 581 568 5.8 4.5e+15 5.7e+30 311 C2 C3 195 SXT PHTX DST Java Movie
    1999/05/17 09:26:05 350 79 602 697 652 7.1*1 1.4e+14 2.5e+29 352 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/05/17 09:50:05 205 25 272 297 403 5.4*1 2.9e+14 1.1e+29 213 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/05/17 17:50:05 293 109 550 449 217 -15.5*1 2.1e+15 3.1e+30 307 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/05/19 23:02:31 274 17 246 226 116 -2.5*1 3.9e+13 1.2e+28 280 C2 C3 195 SXT PHTX DST Java Movie
    1999/05/19 23:02:31 329 41 458 452 455 -0.5*1 4.8e+14 5.1e+29 324 C2 C3 195 SXT PHTX DST Java Movie Only C3
    1999/05/19 23:02:31 57 94 480 379 288 -15.3*1 1.6e+15 1.8e+30 26 C2 C3 195 SXT PHTX DST Java Movie Only C3
    1999/05/20 00:26:05 334 15 403 405 410 0.3*1 1.7e+13 1.4e+28 333 C2 C3 195 SXT PHTX DST Java Movie
    1999/05/20 05:26:05 45 28 164 227 440 7.6*1 1.9e+13 2.5e+27 46 C2 C3 195 SXT PHTX DST Java Movie width difficult to determine; Poor Event; Only C2
    1999/05/20 08:26:05 47 69 298 359 400 4.4*1 1.0e+15 4.5e+29 43 C2 C3 195 SXT PHTX DST Java Movie
    1999/05/20 12:50:05 42 70 414 306 0 -46.8*1 ---- ---- 39 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1999/05/20 13:28:21 313 119 715 858 785 11.3 5.1e+15 1.3e+31 324 C2 C3 195 SXT PHTX DST Java Movie
    1999/05/20 16:26:05 21 111 944 996 966 5.9 5.1e+14 2.3e+30 8 C2 C3 195 SXT PHTX DST Java Movie
    1999/05/20 21:26:08 115 91 284