• 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
    2021/12/01 00:12:05 239 17 132 117 0 -4.4*1 ---- ---- 241 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2021/12/01 20:36:06 232 43 433 488 613 9.6*1 ---- ---- 228 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2021/12/03 03:47:46 247 34 215 262 640 15.6*1 ---- ---- 253 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2021/12/03 18:00:05 244 29 270 243 0 -12.0*1 ---- ---- 251 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2021/12/03 21:48:06 243 37 228 205 0 -5.0*1 ---- ---- 242 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2021/12/04 02:12:05 237 31 212 213 225 0.3*1 ---- ---- 235 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2021/12/04 05:24:05 257 98 523 423 286 -12.2 ---- ---- 232 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30
    2021/12/04 08:00:05 261 98 339 273 131 -5.9*1 ---- ---- 254 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30
    2021/12/04 11:36:05 260 132 514 590 570 5.3 ---- ---- 260 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Partial Halo
    2021/12/04 16:12:05 242 57 463 388 120 -11.5 ---- ---- 250 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30
    2021/12/05 00:24:06 244 71 507 479 491 -1.7 ---- ---- 250 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30
    2021/12/05 07:36:05 256 110 628 659 697 5.6*1 ---- ---- 229 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30
    2021/12/05 14:24:06 228 21 304 432 642 17.3*1 ---- ---- 228 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2021/12/05 15:48:17 279 29 215 166 0 -6.6*1 ---- ---- 274 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2021/12/05 19:00:05 257 113 563 650 625 6.5 ---- ---- 262 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30
    2021/12/05 21:48:05 223 51 354 386 382 1.8*1 ---- ---- 225 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30
    2021/12/06 01:36:23 266 30 425 565 680 17.0*1 ---- ---- 262 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30
    2021/12/06 05:48:05 269 44 992 687 0 -77.7*1 ---- ---- 258 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30
    2021/12/06 09:12:09 125 10 361 324 0 -20.9*1 ---- ---- 118 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2021/12/06 10:00:05 260 24 291 340 667 15.9*1 ---- ---- 256 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2021/12/06 11:36:05 244 81 585 624 643 4.9*1 ---- ---- 234 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30
    2021/12/06 22:36:05 222 43 471 361 0 -20.5*1 ---- ---- 227 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2021/12/07 01:25:43 236 45 330 268 0 -16.3*1 ---- ---- 234 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2021/12/08 13:48:05 69 41 429 520 971 34.3*1 ---- ---- 73 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2021/12/08 17:12:05 59 10 206 238 272 1.9*1 ---- ---- 66 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very Poor Event
    2021/12/08 22:36:05 287 23 265 243 0 -6.5*1 ---- ---- 283 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very Poor Event; Only C2
    2021/12/09 02:00:05 109 33 511 362 0 -69.2*1 ---- ---- 109 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2021/12/09 05:12:06 78 22 550 637 1187 49.9*1 ---- ---- 78 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2021/12/09 11:24:05 112 10 288 374 989 39.2*1 ---- ---- 111 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2021/12/09 17:36:05 59 21 185 172 0 -2.0*1 ---- ---- 62 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2021/12/09 23:24:05 102 32 703 641 458 -15.5*1 ---- ---- 96 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2021/12/10 00:24:05 101 23 220 152 0 -3.7*1 ---- ---- 109 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2021/12/10 04:24:07 225 16 233 208 80 -2.6*1 ---- ---- 225 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2021/12/10 11:12:06 311 23 438 582 1222 59.2*1 ---- ---- 311 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2021/12/10 11:24:05 107 15 790 725 0 -44.1*1 ---- ---- 110 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2021/12/10 19:50:19 93 23 235 179 0 -13.8*1 ---- ---- 100 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very Poor Event; Only C2
    2021/12/11 08:12:06 134 7 345 465 1102 48.3*1 ---- ---- 135 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2021/12/11 08:48:06 112 7 696 1059 2751 321.0*1 ---- ---- 111 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only 3 points; Only C2
    2021/12/11 10:12:06 65 28 686 846 1722 111.2*1 ---- ---- 69 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2021/12/12 05:00:05 238 9 308 321 456 5.1*1 ---- ---- 237 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very Poor Event; Only C2
    2021/12/12 19:36:05 112 6 457 300 0 -109.2*1 ---- ---- 112 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very Poor Event; Only C2
    2021/12/12 22:24:05 108 14 262 238 0 -10.8*1 ---- ---- 107 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very Poor Event; Only C2
    2021/12/13 01:25:46 99 31 546 628 1272 59.8*1 ---- ---- 96 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2021/12/13 05:24:05 106 11 325 281 0 -18.8*1 ---- ---- 102 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very Poor Event; Only C2
    2021/12/13 10:48:05 111 9 274 290 526 8.7*1 ---- ---- 109 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very Poor Event; Only C2
    2021/12/13 11:36:06 96 51 534 382 0 -21.7*1 ---- ---- 97 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2021/12/14 22:36:05 85 25 166 215 631 15.8*1 ---- ---- 86 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2021/12/15 02:12:05 95 32 153 193 351 4.6*1 ---- ---- 89 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2021/12/15 07:00:06 238 30 269 292 329 1.9*1 ---- ---- 242 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2021/12/15 12:00:05 100 34 365 405 459 4.5*1 ---- ---- 106 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2021/12/16 02:24:06 94 58 218 254 472 7.9*1 ---- ---- 94 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2021/12/16 04:24:06 100 82 378 346 344 -2.1*1 ---- ---- 114 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2021/12/16 06:12:06 99 71 220 136 0 -21.8*1 ---- ---- 89 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2021/12/16 11:00:05 96 45 325 277 0 -5.9*1 ---- ---- 95 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30
    2021/12/17 07:36:05 71 26 181 206 554 11.7*1 ---- ---- 77 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very Poor Event; Only C2
    2021/12/17 14:12:05 287 14 338 547 1299 69.8*1 ---- ---- 284 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very Poor Event; Only C2
    2021/12/17 20:36:05 Halo 360 218 88 0 -20.7*1 ---- ---- 35 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2021/12/17 22:12:05 100 90 409 456 769 18.7*1 ---- ---- 111 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2021/12/18 06:12:05 93 82 231 156 0 -18.7*1 ---- ---- 106 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2021/12/18 10:24:07 81 20 172 85 0 -15.8*1 ---- ---- 86 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2021/12/18 15:12:09 57 13 219 335 893 32.5*1 ---- ---- 62 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2021/12/18 18:00:05 112 158 588 529 516 -6.0 ---- ---- 100 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Partial Halo
    2021/12/19 07:48:07 256 29 345 408 826 25.3*1 ---- ---- 257 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2021/12/19 13:25:48 242 7 214 190 0 -11.1*1 ---- ---- 246 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very Poor Event; Only C2
    2021/12/19 14:36:05 292 12 294 302 381 2.6*1 ---- ---- 286 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2021/12/19 17:12:05 105 8 319 445 529 10.3*1 ---- ---- 108 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very Poor Event
    2021/12/19 19:00:05 80 19 456 384 0 -13.8*1 ---- ---- 88 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30
    2021/12/19 20:12:05 78 25 545 670 954 29.9*1 ---- ---- 76 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30
    2021/12/20 03:24:05 119 30 286 363 637 15.0*1 ---- ---- 126 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2021/12/20 05:24:05 97 97 227 245 386 4.4*1 ---- ---- 99 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2021/12/20 12:24:05 51 314 359 390 493 5.5*1 ---- ---- 141 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Partial Halo
    2021/12/21 04:12:05 287 24 175 163 0 -4.4*1 ---- ---- 286 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very Poor Event; Only C2
    2021/12/21 14:36:05 264 111 105 197 392 6.5*1 ---- ---- 271 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2021/12/21 18:48:05 112 104 196 201 229 0.7*1 ---- ---- 128 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2021/12/22 10:36:05 232 16 375 386 429 2.1*1 ---- ---- 229 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2021/12/22 21:48:06 130 68 196 172 0 -3.7*1 ---- ---- 119 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2021/12/23 15:12:09 238 23 141 138 83 -0.6*1 ---- ---- 236 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very Poor Event; Only C2
    2021/12/23 22:24:06 241 34 763 477 0 -47.0*1 ---- ---- 229 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30
    2021/12/24 09:36:05 244 9 174 166 0 -1.8*1 ---- ---- 242 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very Poor Event; Only C2
    2021/12/24 12:12:05 243 44 360 261 187 -6.9*1 ---- ---- 246 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2021/12/24 12:24:05 304 41 500 522 724 12.7*1 ---- ---- 306 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2021/12/24 22:12:05 92 117 166 215 258 2.2*1 ---- ---- 81 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2021/12/25 02:12:05 226 15 974 865 0 -68.5*1 ---- ---- 226 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30
    2021/12/25 05:48:06 229 7 260 102 0 -50.1*1 ---- ---- 233 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2021/12/25 10:12:06 247 22 192 193 197 0.1*1 ---- ---- 242 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2021/12/25 15:24:05 247 28 206 183 97 -1.7*1 ---- ---- 240 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2021/12/25 20:48:05 230 14 423 384 0 -15.6*1 ---- ---- 234 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very Poor Event; Only C2
    2021/12/26 04:00:05 246 61 286 428 626 15.1*1 ---- ---- 240 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30
    2021/12/26 21:36:05 259 95 353 334 187 -4.2*1 ---- ---- 243 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2021/12/27 05:36:05 91 42 153 77 0 -40.9*1 ---- ---- 91 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very Poor Event; Only C2
    2021/12/27 07:00:05 277 106 179 159 0 -2.9*1 ---- ---- 263 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30
    2021/12/27 23:12:11 70 76 175 246 453 8.1*1 ---- ---- 70 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2021/12/28 02:36:05 234 15 219 289 908 33.0*1 ---- ---- 235 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2021/12/28 03:48:05 298 14 501 598 1220 56.6*1 ---- ---- 298 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very Poor Event; Only C2
    2021/12/28 06:12:06 273 79 339 380 748 19.4*1 ---- ---- 268 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very Poor Event; Only C2
    2021/12/28 10:36:05 83 43 109 137 180 1.1*1 ---- ---- 88 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2021/12/28 13:25:51 233 19 182 92 0 -49.2*1 ---- ---- 235 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2021/12/28 21:36:05 91 26 300 371 517 9.8*1 ---- ---- 93 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very Poor Event
    2021/12/29 03:12:11 249 70 508 592 795 19.1*1 ---- ---- 231 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2021/12/29 19:12:05 287 92 318 423 418 5.5*1 ---- ---- 291 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30
    2021/12/29 23:36:05 295 19 902 828 447 -30.5*1 ---- ---- 300 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2021/12/30 02:12:05 89 58 209 146 0 -13.9*1 ---- ---- 93 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very Poor Event; Only C2
    2021/12/30 16:12:05 248 29 207 250 566 12.2*1 ---- ---- 244 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2021/12/30 22:00:05 247 27 221 255 547 11.1*1 ---- ---- 245 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2021/12/31 02:00:06 242 29 96 106 352 4.9*1 ---- ---- 247 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very Poor Event; Only C2
    2021/12/31 06:24:05 249 50 262 367 458 7.6 ---- ---- 249 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30
    2021/12/31 12:24:05 79 36 275 436 587 13.6*1 ---- ---- 85 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30
    2021/12/31 14:00:07 210 133 262 455 420 7.4*1 ---- ---- 215 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Partial Halo
    2021/12/31 16:00:05 313 9 553 598 1125 41.4*1 ---- ---- 309 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very 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).