• 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
    2022/04/01 01:36:05 124 19 178 206 498 9.3*1 ---- ---- 123 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2022/04/02 03:12:10 115 58 221 280 360 4.2*1 2.0e+14 5.0e+28 118 C2 C3 PHTX DST Java Movie Very Poor Event
    2022/04/02 13:36:05 Halo 360 1433 1326 1365 -20.7 1.7e+16*2 1.7e+32*2 263 C2 C3 PHTX DST Java Movie
    2022/04/02 23:36:05 131 100 429 296 198 -11.7*1 1.2e+14 1.1e+29 129 C2 C3 PHTX DST Java Movie Poor Event
    2022/04/03 08:24:05 272 48 256 505 1207 60.8*1 3.6e+14 1.2e+29 279 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2022/04/03 12:00:05 236 15 289 213 0 -7.2*1 ---- ---- 237 C2 C3 PHTX DST Java Movie Very Poor Event
    2022/04/03 16:48:06 Halo 360 502 444 110 -12.3*1 1.4e+15*2 1.8e+30*2 276 C2 C3 PHTX DST Java Movie Poor Event
    2022/04/03 23:48:05 248 14 736 544 0 -188.6*1 ---- ---- 249 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2022/04/04 04:00:05 280 42 162 87 0 -23.0*1 5.1e+14 6.7e+28 275 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2022/04/04 06:12:05 281 92 277 342 547 10.6*1 1.5e+15 5.8e+29 289 C2 C3 PHTX DST Java Movie Poor Event
    2022/04/04 11:00:05 239 121 714 600 633 -11.9 4.2e+15*2 1.1e+31*2 236 C2 C3 PHTX DST Java Movie Partial Halo
    2022/04/04 18:48:05 232 21 437 420 192 -7.1*1 1.4e+14 1.4e+29 232 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2022/04/04 20:24:05 268 79 302 192 0 -19.3*1 2.6e+14 1.2e+29 272 C2 C3 PHTX DST Java Movie Poor Event
    2022/04/04 21:48:05 146 76 271 314 447 6.0*1 6.5e+14 2.4e+29 140 C2 C3 PHTX DST Java Movie Poor Event
    2022/04/04 23:12:05 279 84 220 215 186 -0.7*1 8.8e+14 2.1e+29 284 C2 C3 PHTX DST Java Movie Poor Event
    2022/04/05 01:12:05 270 40 254 245 197 -1.3*1 9.4e+14 3.0e+29 266 C2 C3 PHTX DST Java Movie
    2022/04/05 02:12:05 238 15 977 906 689 -26.7*1 ---- ---- 240 C2 C3 PHTX DST Java Movie Poor Event
    2022/04/05 07:00:05 112 34 295 303 365 2.1*1 5.1e+14 2.2e+29 107 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2022/04/06 04:48:06 250 14 543 715 1291 63.7*1 ---- ---- 247 C2 C3 PHTX DST Java Movie Poor Event
    2022/04/06 09:12:08 226 15 898 1022 1424 62.7*1 ---- ---- 230 C2 C3 PHTX DST Java Movie
    2022/04/06 10:48:05 263 37 194 273 601 14.6*1 4.0e+14 7.5e+28 265 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2022/04/06 21:42:05 279 136 421 422 424 0.2*1 1.1e+15*2 9.5e+29*2 321 C2 C3 PHTX DST Java Movie Poor Event; Only C3; Partial Halo
    2022/04/07 05:48:05 114 187 415 476 521 6.0 1.7e+15*2 1.4e+30*2 124 C2 C3 PHTX DST Java Movie Partial Halo
    2022/04/08 20:09:12 103 50 217 238 420 5.7*1 3.7e+14 8.8e+28 101 C2 C3 PHTX DST Java Movie The width was fixed on 2023/05/01.; Very Poor Event; Only C2
    2022/04/09 02:36:05 105 48 50 75 183 1.4*1 1.1e+15 1.4e+28 107 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2022/04/09 06:36:05 3 48 127 92 0 -16.0*1 5.6e+13 4.5e+27 7 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2022/04/09 09:12:10 176 159 305 592 559 12.9 7.5e+15*2 3.5e+30*2 203 C2 C3 PHTX DST Java Movie Partial Halo
    2022/04/09 12:12:05 34 110 529 474 402 -7.9*1 9.9e+14 1.4e+30 52 C2 C3 PHTX DST Java Movie
    2022/04/09 19:12:05 238 39 399 370 312 -3.6*1 5.3e+14 4.2e+29 245 C2 C3 PHTX DST Java Movie Poor Event
    2022/04/10 03:24:05 265 34 297 415 541 11.4*1 9.4e+12 4.1e+27 265 C2 C3 PHTX DST Java Movie Poor Event
    2022/04/10 03:48:05 66 18 342 318 0 -6.8*1 ---- ---- 71 C2 C3 PHTX DST Java Movie Poor Event
    2022/04/10 09:24:05 49 18 386 173 0 -47.6*1 ---- ---- 54 C2 C3 PHTX DST Java Movie Poor Event
    2022/04/10 14:48:05 60 35 557 418 0 -29.7*1 1.9e+14 3.0e+29 61 C2 C3 PHTX DST Java Movie Poor Event
    2022/04/11 04:36:05 106 36 278 292 453 5.6*1 1.5e+14 5.8e+28 106 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2022/04/11 05:48:05 Halo 360 940 1039 1144 26.3*1 1.8e+15*2 7.8e+30*2 66 C2 C3 PHTX DST Java Movie Poor Event
    2022/04/11 20:57:31 71 241 413 456 575 8.0*1 3.6e+15*2 3.0e+30*2 68 C2 C3 PHTX DST Java Movie Partial Halo
    2022/04/12 17:12:05 74 22 557 432 0 -46.4*1 6.3e+13 9.8e+28 89 C2 C3 PHTX DST Java Movie Poor Event
    2022/04/13 00:12:05 75 10 667 667 667 0.0*1 ---- ---- 83 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2022/04/13 05:24:05 224 31 332 456 504 8.7*1 1.8e+15 9.9e+29 230 C2 C3 PHTX DST Java Movie Poor Event
    2022/04/13 13:25:46 Halo 360 1032 985 1000 -7.0 9.6e+15*2 5.1e+31*2 95 C2 C3 PHTX DST Java Movie
    2022/04/14 02:36:05 237 92 399 393 389 -0.5*1 1.8e+15 1.4e+30 218 C2 C3 PHTX DST Java Movie Poor Event
    2022/04/14 09:24:06 78 131 525 617 576 5.8 9.6e+15*2 1.3e+31*2 94 C2 C3 PHTX DST Java Movie Partial Halo
    2022/04/14 21:33:45 317 92 273 326 328 2.5*1 2.2e+15 8.2e+29 309 C2 C3 PHTX DST Java Movie Poor Event
    2022/04/15 01:24:07 87 119 659 802 739 11.5 5.3e+15 1.1e+31 98 C2 C3 PHTX DST Java Movie
    2022/04/15 04:38:38 189 78 437 404 326 -5.1*1 4.6e+14 4.4e+29 184 C2 C3 PHTX DST Java Movie
    2022/04/15 12:04:47 93 212 796 960 874 16.0 6.8e+15*2 2.2e+31*2 89 C2 C3 PHTX DST Java Movie Partial Halo
    2022/04/16 10:00:05 272 166 465 642 592 10.7 5.1e+15*2 5.5e+30*2 292 C2 C3 PHTX DST Java Movie Partial Halo
    2022/04/16 19:00:06 166 24 338 346 426 3.1*1 8.0e+13 4.5e+28 172 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2022/04/16 21:12:11 228 67 229 273 522 9.8*1 8.7e+14 2.3e+29 229 C2 C3 PHTX DST Java Movie Only C2
    2022/04/17 01:25:48 164 84 575 446 467 -11.9 3.3e+15 5.5e+30 157 C2 C3 PHTX DST Java Movie
    2022/04/17 03:48:05 91 209 895 743 846 -15.4 1.4e+16*2 5.6e+31*2 89 C2 C3 PHTX DST Java Movie Partial Halo
    2022/04/17 07:24:05 291 32 379 417 455 3.8*1 9.8e+13 7.0e+28 294 C2 C3 PHTX DST Java Movie
    2022/04/17 16:24:06 208 170 575 402 452 -13.0 5.6e+15*2 9.3e+30*2 198 C2 C3 PHTX DST Java Movie Partial Halo
    2022/04/17 19:24:06 224 53 354 413 413 3.4*1 9.9e+14 6.2e+29 233 C2 C3 PHTX DST Java Movie Poor Event
    2022/04/17 23:12:11 44 31 785 698 326 -30.7*1 1.4e+14 4.3e+29 36 C2 C3 PHTX DST Java Movie
    2022/04/18 08:24:07 49 37 842 617 0 -51.1*1 1.9e+14 6.8e+29 46 C2 C3 PHTX DST Java Movie
    2022/04/18 21:36:05 227 46 231 190 0 -10.5*1 1.7e+14 4.5e+28 228 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2022/04/19 00:24:05 259 99 293 742 774 25.4*1 2.9e+15 1.3e+30 282 C2 C3 PHTX DST Java Movie
    2022/04/19 15:24:05 243 103 452 452 452 0.0 1.7e+15 1.7e+30 242 C2 C3 PHTX DST Java Movie
    2022/04/19 19:36:05 130 44 844 1015 1006 22.7*1 1.9e+15 6.8e+30 138 C2 C3 PHTX DST Java Movie Poor Event
    2022/04/19 21:24:05 227 53 247 142 0 -6.3*1 2.2e+15 6.6e+29 220 C2 C3 PHTX DST Java Movie Poor Event
    2022/04/20 02:00:05 227 55 542 483 414 -7.9 2.9e+15 4.3e+30 242 C2 C3 PHTX DST Java Movie
    2022/04/20 04:12:05 251 139 1001 775 927 -26.8 3.4e+15*2 1.7e+31*2 256 C2 C3 PHTX DST Java Movie Partial Halo
    2022/04/20 12:36:05 226 56 342 369 391 2.3*1 1.6e+15 9.4e+29 237 C2 C3 PHTX DST Java Movie Poor Event
    2022/04/20 20:24:06 226 69 372 0 0 -43.7*1 3.3e+14 2.3e+29 238 C2 C3 PHTX DST Java Movie Poor Event
    2022/04/21 02:24:05 38 90 357 314 169 -5.5*1 1.6e+15 1.0e+30 26 C2 C3 PHTX DST Java Movie Poor Event
    2022/04/21 05:36:05 125 8 375 233 0 -53.8*1 ---- ---- 124 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2022/04/21 08:00:05 129 12 352 325 0 -8.1*1 ---- ---- 129 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2022/04/21 10:00:05 128 19 634 517 0 -64.3*1 ---- ---- 126 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2022/04/21 10:36:05 242 25 159 126 0 -10.7*1 6.4e+13 8.1e+27 242 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2022/04/21 15:36:05 82 80 128 108 0 -2.4*1 1.6e+15 1.3e+29 87 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2022/04/21 23:12:09 206 116 405 298 0 -16.9*1 1.7e+15 1.4e+30 213 C2 C3 PHTX DST Java Movie
    2022/04/22 16:24:05 206 101 255 281 392 4.2*1 8.3e+14 2.7e+29 206 C2 C3 PHTX DST Java Movie Poor Event
    2022/04/23 05:12:05 100 35 196 224 432 6.5*1 2.5e+14 4.7e+28 94 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2022/04/23 10:36:05 80 24 133 90 0 -6.0*1 7.3e+14 6.5e+28 82 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2022/04/24 00:36:05 258 15 420 527 1053 41.5*1 ---- ---- 256 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2022/04/24 04:12:06 107 42 226 203 0 -10.9*1 1.2e+13 3.1e+27 107 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2022/04/24 09:12:10 75 162 590 715 675 9.9 6.8e+15*2 1.2e+31*2 101 C2 C3 PHTX DST Java Movie Partial Halo
    2022/04/24 11:12:05 211 81 520 623 700 13.2 1.4e+15 2.0e+30 218 C2 C3 PHTX DST Java Movie
    2022/04/24 16:36:07 350 21 236 154 0 -16.3*1 4.3e+14 1.2e+29 352 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2022/04/25 02:00:05 101 21 172 188 356 4.2*1 1.3e+14 2.0e+28 102 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2022/04/25 04:24:05 97 49 197 154 0 -8.4*1 5.0e+14 9.7e+28 99 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2022/04/25 06:48:05 98 49 244 251 276 0.8*1 3.5e+14 1.0e+29 101 C2 C3 PHTX DST Java Movie
    2022/04/25 11:00:05 100 67 357 428 834 25.5*1 3.0e+14 1.9e+29 95 C2 C3 PHTX DST Java Movie Only C2
    2022/04/25 18:00:05 85 120 319 322 342 0.7*1 1.2e+15 5.9e+29 105 C2 C3 PHTX DST Java Movie
    2022/04/25 19:36:05 349 56 438 587 657 15.9*1 1.5e+13 1.4e+28 350 C2 C3 PHTX DST Java Movie Poor Event
    2022/04/25 20:24:06 90 125 498 505 502 0.4 6.6e+15*2 8.2e+30*2 91 C2 C3 PHTX DST Java Movie Partial Halo
    2022/04/25 21:48:05 323 43 102 113 217 1.6*1 5.2e+14 2.7e+28 315 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2022/04/26 03:48:05 141 117 220 234 261 1.0*1 1.1e+15 2.6e+29 151 C2 C3 PHTX DST Java Movie
    2022/04/26 08:12:05 223 26 107 81 0 -5.2*1 3.1e+14 1.8e+28 226 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2022/04/26 13:25:49 79 123 606 650 711 8.4*1 9.8e+14*2 1.8e+30*2 95 C2 C3 PHTX DST Java Movie Partial Halo
    2022/04/26 14:48:05 297 86 511 414 0 -17.1*1 5.2e+14 6.8e+29 318 C2 C3 PHTX DST Java Movie Poor Event
    2022/04/27 01:36:26 69 151 544 613 577 4.1 6.9e+15*2 1.0e+31*2 43 C2 C3 PHTX DST Java Movie Partial Halo
    2022/04/27 08:48:05 309 106 941 856 890 -11.0 2.5e+15 1.1e+31 329 C2 C3 PHTX DST Java Movie
    2022/04/27 11:12:05 79 124 427 326 90 -11.1 2.0e+15*2 1.8e+30*2 95 C2 C3 PHTX DST Java Movie Partial Halo
    2022/04/27 15:05:48 291 127 807 746 780 -5.9 1.9e+15*2 6.3e+30*2 317 C2 C3 PHTX DST Java Movie Partial Halo
    2022/04/27 17:48:05 330 29 464 458 440 -1.1*1 1.1e+14 1.2e+29 334 C2 C3 PHTX DST Java Movie Poor Event
    2022/04/27 20:36:06 292 58 602 924 876 29.4*1 1.3e+15 2.4e+30 295 C2 C3 PHTX DST Java Movie
    2022/04/28 03:12:09 317 124 919 804 889 -12.0 3.9e+15*2 1.7e+31*2 319 C2 C3 PHTX DST Java Movie Partial Halo
    2022/04/28 04:36:05 99 124 385 362 361 -1.4 1.9e+15*2 1.4e+30*2 118 C2 C3 PHTX DST Java Movie Partial Halo
    2022/04/29 07:36:05 272 245 1292 1136 1239 -25.2 2.7e+15*2 2.2e+31*2 310 C2 C3 PHTX DST Java Movie Partial Halo
    2022/04/29 09:36:07 262 51 263 245 58 -3.2*1 7.7e+14 2.6e+29 263 C2 C3 PHTX DST Java Movie
    2022/04/29 10:24:05 289 29 827 698 472 -30.0*1 3.6e+14 1.2e+30 300 C2 C3 PHTX DST Java Movie
    2022/04/29 10:24:05 105 30 583 599 652 4.3*1 1.1e+14 1.8e+29 100 C2 C3 PHTX DST Java Movie Poor Event
    2022/04/29 22:36:05 277 24 750 858 1130 35.9*1 8.8e+13 2.5e+29 279 C2 C3 PHTX DST Java Movie Poor Event
    2022/04/30 02:48:06 287 15 475 425 0 -23.1*1 ---- ---- 287 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2022/04/30 05:48:05 244 91 223 221 206 -0.3*1 4.1e+14 1.0e+29 263 C2 C3 PHTX DST Java Movie Only C2
    2022/04/30 09:12:09 250 84 214 182 0 -12.0*1 2.2e+15 5.0e+29 263 C2 C3 PHTX DST Java Movie Only C2
    2022/04/30 10:12:05 68 112 344 425 577 10.7*1 1.2e+15 6.9e+29 76 C2 C3 PHTX DST Java Movie
    2022/04/30 10:12:05 239 156 382 403 417 1.9 9.0e+15*2 6.6e+30*2 262 C2 C3 PHTX DST Java Movie Partial Halo
    2022/04/30 13:25:53 62 99 212 221 225 0.4 3.2e+15 7.1e+29 55 C2 C3 PHTX DST Java Movie
    2022/04/30 14:00:05 260 187 498 486 491 -0.8 1.1e+16*2 1.4e+31*2 250 C2 C3 PHTX DST Java Movie Partial Halo
    2022/04/30 20:00:06 250 209 648 452 598 -15.0 3.1e+15*2 6.6e+30*2 264 C2 C3 PHTX DST Java Movie Partial Halo

    *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).