• 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
    2023/10/01 00:48:11 146 23 248 217 131 -2.5*1 ---- ---- 152 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2023/10/01 00:48:11 72 30 228 284 461 8.5*1 ---- ---- 74 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2023/10/01 02:12:09 82 41 172 275 679 18.8*1 ---- ---- 88 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2023/10/01 13:48:11 165 17 384 436 485 5.7*1 ---- ---- 173 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2023/10/01 14:24:05 235 61 343 471 435 6.0*1 ---- ---- 240 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30
    2023/10/01 18:48:09 70 53 275 380 430 6.7*1 ---- ---- 74 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2023/10/01 20:24:05 283 10 442 407 0 -11.1*1 ---- ---- 280 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2023/10/02 00:48:10 21 242 240 251 292 1.4*1 ---- ---- 4 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Partial Halo
    2023/10/02 10:12:11 298 182 441 478 609 8.7*1 ---- ---- 274 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Partial Halo
    2023/10/02 18:24:05 83 76 436 393 424 -2.1*1 ---- ---- 75 C2 C3 PHTX DST Java Movie The width changed on 2024/02/20 ; Fixed the PA issue on 2026-01-30
    2023/10/03 08:24:05 99 23 114 145 320 4.0*1 ---- ---- 96 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2023/10/03 08:48:05 298 66 336 352 372 1.4 ---- ---- 298 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30
    2023/10/03 12:36:05 83 256 509 381 428 -8.9 ---- ---- 70 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Partial Halo
    2023/10/03 18:24:05 343 82 301 591 551 12.4 ---- ---- 341 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30
    2023/10/04 00:36:05 267 136 607 365 153 -28.9 ---- ---- 288 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Partial Halo
    2023/10/04 06:48:05 193 51 227 278 274 1.8*1 ---- ---- 196 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2023/10/04 07:00:05 344 21 489 737 956 35.3*1 ---- ---- 345 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2023/10/04 08:48:05 302 49 353 406 573 9.9*1 ---- ---- 294 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30
    2023/10/05 01:25:54 303 65 354 336 288 -2.2 ---- ---- 299 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30
    2023/10/05 02:12:05 56 111 350 566 504 9.6 ---- ---- 45 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30
    2023/10/05 10:00:06 95 41 219 126 0 -18.1*1 ---- ---- 94 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2023/10/05 19:36:06 268 222 636 802 744 12.7 ---- ---- 272 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Partial Halo
    2023/10/06 07:12:06 305 69 311 329 452 5.0*1 ---- ---- 302 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2023/10/06 11:36:06 66 48 194 179 0 -3.0*1 ---- ---- 67 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2023/10/06 12:36:06 266 42 248 328 824 26.5*1 ---- ---- 264 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2023/10/06 18:24:05 73 84 250 168 0 -5.7 ---- ---- 69 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30
    2023/10/07 02:12:07 66 57 295 371 741 20.5*1 ---- ---- 67 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2023/10/07 05:48:06 67 56 223 189 0 -5.0*1 ---- ---- 71 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2023/10/07 11:36:05 84 61 391 430 746 17.9*1 ---- ---- 88 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very Poor Event; Only C2
    2023/10/07 11:48:06 301 48 246 68 0 -44.3*1 ---- ---- 294 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2023/10/07 19:12:06 107 49 233 203 0 -12.2*1 ---- ---- 105 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2023/10/08 03:12:10 58 126 299 416 376 4.5 ---- ---- 52 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Partial Halo
    2023/10/08 07:00:05 192 184 377 38 0 -40.4*1 ---- ---- 153 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Partial Halo
    2023/10/08 17:24:06 5 125 513 864 740 20.9 ---- ---- 7 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Partial Halo
    2023/10/08 18:24:05 258 75 241 179 0 -6.0*1 ---- ---- 261 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30
    2023/10/09 05:00:05 65 71 387 231 0 -17.7*1 ---- ---- 57 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30
    2023/10/09 07:48:05 269 41 192 262 777 24.0*1 ---- ---- 269 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2023/10/10 04:24:05 61 60 226 321 722 20.6*1 ---- ---- 82 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2023/10/10 07:12:05 216 50 167 241 534 11.4*1 ---- ---- 213 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2023/10/10 10:24:06 Halo 360 1102 1062 1079 -5.6 ---- ---- 87 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30
    2023/10/11 10:00:05 327 50 182 171 0 -3.1*1 ---- ---- 334 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2023/10/11 17:12:05 273 57 188 250 552 12.0*1 ---- ---- 270 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Only C2
    2023/10/11 23:12:36 Halo 360 743 806 795 6.7 ---- ---- 72 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30
    2023/10/11 23:24:05 260 136 416 448 485 3.6*1 ---- ---- 263 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Partial Halo
    2023/10/12 06:24:05 84 26 323 358 370 2.2*1 ---- ---- 85 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30
    2023/10/12 12:48:06 275 40 176 120 0 -9.4*1 ---- ---- 269 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2023/10/12 14:00:05 78 29 551 628 656 8.7 ---- ---- 81 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30
    2023/10/12 17:00:05 335 120 332 564 497 9.6 ---- ---- 339 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30
    2023/10/12 20:56:53 268 44 312 247 0 -8.9*1 ---- ---- 263 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30
    2023/10/13 16:24:06 285 47 215 278 360 4.6*1 ---- ---- 294 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2023/10/14 04:36:05 331 149 317 411 421 5.2 ---- ---- 320 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Partial Halo
    2023/10/14 12:00:05 299 106 212 201 161 -1.0*1 ---- ---- 295 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2023/10/14 17:00:05 234 168 495 485 486 -0.7 ---- ---- 223 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Partial Halo
    2023/10/15 03:12:09 359 58 352 326 0 -11.4*1 ---- ---- 358 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2023/10/15 11:12:05 242 59 218 280 734 21.1*1 ---- ---- 255 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2023/10/15 18:36:05 150 121 399 245 0 -26.2*1 ---- ---- 147 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Partial Halo
    2023/10/15 23:12:10 70 37 485 537 626 9.0*1 ---- ---- 82 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2023/10/16 06:24:06 256 40 474 510 659 9.9*1 ---- ---- 267 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2023/10/16 11:48:06 Halo 360 574 593 585 1.3 ---- ---- 69 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30
    2023/10/17 00:12:05 164 31 175 259 608 15.2*1 ---- ---- 166 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2023/10/17 02:48:05 346 34 358 393 430 3.5*1 ---- ---- 352 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2023/10/17 03:12:09 312 33 212 231 465 7.4*1 ---- ---- 310 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very Poor Event; Only C2
    2023/10/17 05:24:06 198 205 610 662 690 6.6*1 ---- ---- 210 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Partial Halo
    2023/10/17 13:25:53 259 36 174 195 435 6.8*1 ---- ---- 263 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very Poor Event; Only C2
    2023/10/18 02:48:05 25 221 478 534 528 4.2*1 ---- ---- 355 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Partial Halo
    2023/10/18 06:12:05 157 124 636 484 92 -26.6*1 ---- ---- 147 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Partial Halo
    2023/10/18 17:00:06 266 63 228 272 561 11.5*1 ---- ---- 268 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Only C2
    2023/10/18 23:36:06 300 17 219 132 0 -26.5*1 ---- ---- 303 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very Poor Event; Only C2
    2023/10/19 01:37:01 326 227 636 767 708 9.5 ---- ---- 305 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Partial Halo
    2023/10/19 06:48:05 73 19 966 872 741 -23.2 ---- ---- 77 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30
    2023/10/19 07:12:05 294 39 526 605 706 12.4*1 ---- ---- 294 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30
    2023/10/19 10:36:05 72 20 640 439 0 -104.2*1 ---- ---- 75 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2023/10/19 15:24:06 Halo 360 500 431 455 -4.6 ---- ---- 148 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30
    2023/10/20 12:47:05 286 54 377 352 345 -1.7*1 ---- ---- 294 C2 C3 PHTX DST Java Movie Newly inserted on 2024/04/28; Fixed the PA issue on 2026-01-30
    2023/10/20 22:58:07 59 41 242 197 165 -2.2*1 ---- ---- 58 C2 C3 PHTX DST Java Movie Newly inserted on 2024/04/28; Fixed the PA issue on 2026-01-30; Poor Event
    2023/10/21 00:16:06 229 100 234 559 481 10.6*1 ---- ---- 213 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2023/10/21 05:28:09 75 15 485 73 0 -111.5*1 ---- ---- 73 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2023/10/21 08:17:05 220 45 563 424 0 -31.2*1 ---- ---- 216 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30
    2023/10/21 13:16:07 37 30 286 303 472 6.1*1 ---- ---- 37 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2023/10/21 20:25:05 314 65 349 574 501 9.9*1 ---- ---- 320 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2023/10/22 00:06:06 266 67 221 243 263 1.2*1 ---- ---- 261 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30
    2023/10/22 02:03:05 273 106 287 134 0 -15.7*1 ---- ---- 262 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2023/10/22 17:52:06 276 48 396 369 377 -1.4 ---- ---- 282 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30
    2023/10/22 22:25:07 11 192 489 552 520 3.3 ---- ---- 21 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Partial Halo
    2023/10/22 23:56:07 187 165 764 992 898 19.8 ---- ---- 182 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Partial Halo
    2023/10/23 10:07:06 284 64 352 526 480 7.7 ---- ---- 315 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30
    2023/10/23 15:19:05 232 58 304 413 450 6.6 ---- ---- 236 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30
    2023/10/23 21:23:08 291 123 391 325 269 -5.5 ---- ---- 283 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Partial Halo
    2023/10/24 00:12:06 19 20 266 269 283 0.5*1 ---- ---- 24 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Very Poor Event
    2023/10/24 10:00:07 35 19 249 285 349 3.1*1 ---- ---- 33 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30
    2023/10/24 10:36:05 175 85 624 598 595 -2.9*1 ---- ---- 176 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2023/10/24 17:00:05 95 177 512 428 479 -5.6 ---- ---- 82 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Partial Halo
    2023/10/24 18:12:05 327 42 264 304 398 4.4*1 ---- ---- 317 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2023/10/24 20:48:05 84 56 549 606 708 10.7*1 ---- ---- 95 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30
    2023/10/25 02:01:20 314 42 175 189 341 3.8*1 ---- ---- 305 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Only C2
    2023/10/25 13:25:55 109 95 581 525 322 -12.3*1 ---- ---- 123 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2023/10/25 22:36:06 295 123 444 327 399 -6.4*1 ---- ---- 295 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Partial Halo
    2023/10/26 04:36:05 140 53 255 229 151 -2.4*1 ---- ---- 147 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30
    2023/10/26 23:14:06 Halo 360 1238 1194 1209 -7.3 ---- ---- 75 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30
    2023/10/27 11:12:10 152 89 456 491 474 2.1 ---- ---- 160 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30
    2023/10/28 10:36:05 118 211 250 469 456 8.6 ---- ---- 140 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Partial Halo
    2023/10/28 23:48:05 83 62 308 276 130 -4.0*1 ---- ---- 70 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30
    2023/10/29 03:12:11 76 72 140 124 90 -0.7*1 ---- ---- 80 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2023/10/29 08:36:05 172 31 358 339 325 -1.5*1 ---- ---- 172 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2023/10/29 16:12:05 89 54 185 183 168 -0.3*1 ---- ---- 101 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2023/10/30 00:24:05 Halo 360 507 449 400 -6.9 ---- ---- 319 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30
    2023/10/30 17:24:07 325 181 332 256 0 -8.3*1 ---- ---- 337 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event; Partial Halo
    2023/10/30 18:00:05 86 50 173 224 322 3.6*1 ---- ---- 86 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Poor Event
    2023/10/31 05:48:05 20 164 356 436 416 3.9 ---- ---- 360 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Partial Halo
    2023/10/31 20:36:06 85 41 347 209 0 -64.8 ---- ---- 89 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Only C2
    2023/10/31 21:12:09 91 204 632 594 617 -2.7 ---- ---- 112 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; Partial Halo
    2023/10/31 22:12:06 218 155 634 709 665 5.4 ---- ---- 181 C2 C3 PHTX DST Java Movie Fixed the PA issue on 2026-01-30; 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).