• 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 00:48:11 151 23 248 217 131 -2.5*1 1.5e+14 4.5e+28 157 C2 C3 PHTX DST Java Movie Poor Event
    2023/10/01 00:48:11 77 30 228 284 461 8.5*1 1.6e+13 4.2e+27 80 C2 C3 PHTX DST Java Movie Poor Event
    2023/10/01 02:12:09 87 41 172 275 679 18.8*1 8.1e+14 1.2e+29 92 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2023/10/01 13:48:11 169 17 384 436 485 5.7*1 ---- ---- 178 C2 C3 PHTX DST Java Movie Poor Event
    2023/10/01 14:24:05 240 61 343 471 435 6.0*1 3.3e+13 1.9e+28 246 C2 C3 PHTX DST Java Movie
    2023/10/01 18:48:09 75 53 275 380 430 6.7*1 2.1e+13 7.9e+27 80 C2 C3 PHTX DST Java Movie Poor Event
    2023/10/01 20:24:05 287 10 442 407 0 -11.1*1 ---- ---- 285 C2 C3 PHTX DST Java Movie Poor Event
    2023/10/02 00:48:10 25 242 240 251 292 1.4*1 7.0e+14*2 2.0e+29*2 9 C2 C3 PHTX DST Java Movie Poor Event; Partial Halo
    2023/10/02 10:12:11 303 182 441 478 609 8.7*1 3.3e+14*2 3.3e+29*2 279 C2 C3 PHTX DST Java Movie Poor Event; Partial Halo
    2023/10/02 18:24:05 87 76 436 393 424 -2.1*1 2.2e+15 2.1e+30 81 C2 C3 PHTX DST Java Movie The width changed on 2024/02/20
    2023/10/03 08:24:05 103 23 114 145 320 4.0*1 3.7e+14 2.4e+28 101 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2023/10/03 08:48:05 302 66 336 352 372 1.4 1.2e+15 6.6e+29 304 C2 C3 PHTX DST Java Movie
    2023/10/03 12:36:05 87 256 509 381 428 -8.9 4.7e+15*2 6.1e+30*2 76 C2 C3 PHTX DST Java Movie Partial Halo
    2023/10/03 18:24:05 348 82 301 591 551 12.4 3.5e+15 1.6e+30 346 C2 C3 PHTX DST Java Movie
    2023/10/04 00:36:05 272 136 607 365 153 -28.9 1.7e+15*2 3.2e+30*2 294 C2 C3 PHTX DST Java Movie Partial Halo
    2023/10/04 06:48:05 198 51 227 278 274 1.8*1 1.0e+15 2.7e+29 202 C2 C3 PHTX DST Java Movie Poor Event
    2023/10/04 07:00:05 349 21 489 737 956 35.3*1 1.3e+13 1.5e+28 350 C2 C3 PHTX DST Java Movie Poor Event
    2023/10/04 08:48:05 307 49 353 406 573 9.9*1 3.4e+14 2.1e+29 300 C2 C3 PHTX DST Java Movie
    2023/10/05 01:25:54 308 65 354 336 288 -2.2 7.1e+14 4.4e+29 305 C2 C3 PHTX DST Java Movie
    2023/10/05 02:12:05 61 111 350 566 504 9.6 3.4e+15 2.1e+30 51 C2 C3 PHTX DST Java Movie
    2023/10/05 10:00:06 100 41 219 126 0 -18.1*1 2.8e+14 6.6e+28 100 C2 C3 PHTX DST Java Movie Poor Event
    2023/10/05 19:36:06 273 222 636 802 744 12.7 4.0e+15*2 8.0e+30*2 278 C2 C3 PHTX DST Java Movie Partial Halo
    2023/10/06 07:12:06 311 69 311 329 452 5.0*1 4.4e+14 2.1e+29 307 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2023/10/06 11:36:06 71 48 194 179 0 -3.0*1 2.2e+14 4.1e+28 72 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2023/10/06 12:36:06 271 42 248 328 824 26.5*1 2.6e+14 8.0e+28 270 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2023/10/06 18:24:05 79 84 250 168 0 -5.7 1.4e+15 4.3e+29 78 C2 C3 PHTX DST Java Movie
    2023/10/07 02:12:07 71 57 295 371 741 20.5*1 1.2e+14 5.3e+28 73 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2023/10/07 05:48:06 72 56 223 189 0 -5.0*1 1.3e+14 3.2e+28 77 C2 C3 PHTX DST Java Movie Poor Event
    2023/10/07 11:36:05 89 61 391 430 746 17.9*1 1.5e+13 1.1e+28 93 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2023/10/07 11:48:06 306 48 246 68 0 -44.3*1 2.5e+14 7.5e+28 299 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2023/10/07 19:12:06 113 49 233 203 0 -12.2*1 2.8e+13 7.5e+27 111 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2023/10/08 03:12:10 64 126 299 416 376 4.5 5.0e+15*2 2.2e+30*2 59 C2 C3 PHTX DST Java Movie Partial Halo
    2023/10/08 07:00:05 198 184 377 38 0 -40.4*1 6.8e+14*2 4.9e+29*2 160 C2 C3 PHTX DST Java Movie Partial Halo
    2023/10/08 17:24:06 11 125 513 864 740 20.9 4.2e+15*2 5.5e+30*2 14 C2 C3 PHTX DST Java Movie Partial Halo
    2023/10/08 18:24:05 264 75 241 179 0 -6.0*1 2.1e+15 6.2e+29 268 C2 C3 PHTX DST Java Movie
    2023/10/09 05:00:05 71 71 387 231 0 -17.7*1 1.5e+15 1.1e+30 64 C2 C3 PHTX DST Java Movie
    2023/10/09 07:48:05 276 41 192 262 777 24.0*1 4.0e+13 7.4e+27 276 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2023/10/10 04:24:05 68 60 226 321 722 20.6*1 7.9e+14 2.0e+29 88 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2023/10/10 07:12:05 223 50 167 241 534 11.4*1 5.1e+14 7.1e+28 219 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2023/10/10 10:24:06 Halo 360 1102 1062 1079 -5.6 1.5e+16*2 9.3e+31*2 95 C2 C3 PHTX DST Java Movie
    2023/10/11 10:00:05 333 50 182 171 0 -3.1*1 1.7e+14 2.8e+28 340 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2023/10/11 17:12:05 279 57 188 250 552 12.0*1 2.5e+14 4.4e+28 276 C2 C3 PHTX DST Java Movie Only C2
    2023/10/11 23:12:36 Halo 360 743 806 795 6.7 1.1e+16*2 2.9e+31*2 80 C2 C3 PHTX DST Java Movie
    2023/10/11 23:24:05 267 136 416 448 485 3.6*1 1.4e+15*2 1.2e+30*2 270 C2 C3 PHTX DST Java Movie Partial Halo
    2023/10/12 06:24:05 91 26 323 358 370 2.2*1 1.0e+15 5.4e+29 93 C2 C3 PHTX DST Java Movie
    2023/10/12 12:48:06 281 40 176 120 0 -9.4*1 3.6e+14 5.6e+28 276 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2023/10/12 14:00:05 85 29 551 628 656 8.7 4.5e+14 6.8e+29 89 C2 C3 PHTX DST Java Movie
    2023/10/12 17:00:05 342 120 332 564 497 9.6 5.2e+15 2.9e+30 347 C2 C3 PHTX DST Java Movie
    2023/10/12 20:56:53 275 44 312 247 0 -8.9*1 1.0e+15 5.0e+29 270 C2 C3 PHTX DST Java Movie
    2023/10/13 16:24:06 292 47 215 278 360 4.6*1 4.1e+13 9.6e+27 302 C2 C3 PHTX DST Java Movie Poor Event
    2023/10/14 04:36:05 338 149 317 411 421 5.2 2.1e+15*2 1.1e+30*2 328 C2 C3 PHTX DST Java Movie Partial Halo
    2023/10/14 12:00:05 306 106 212 201 161 -1.0*1 3.8e+14 8.6e+28 303 C2 C3 PHTX DST Java Movie Poor Event
    2023/10/14 17:00:05 242 168 495 485 486 -0.7 4.2e+15*2 5.1e+30*2 232 C2 C3 PHTX DST Java Movie Partial Halo
    2023/10/15 03:12:09 6 58 352 326 0 -11.4*1 1.9e+14 1.2e+29 5 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2023/10/15 11:12:05 250 59 218 280 734 21.1*1 7.5e+13 1.8e+28 262 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2023/10/15 18:36:05 157 121 399 245 0 -26.2*1 6.6e+14*2 5.2e+29*2 156 C2 C3 PHTX DST Java Movie Partial Halo
    2023/10/15 23:12:10 78 37 485 537 626 9.0*1 4.9e+14 5.7e+29 90 C2 C3 PHTX DST Java Movie Poor Event
    2023/10/16 06:24:06 263 40 474 510 659 9.9*1 3.5e+14 3.9e+29 276 C2 C3 PHTX DST Java Movie Poor Event
    2023/10/16 11:48:06 Halo 360 574 593 585 1.3 6.4e+15*2 1.1e+31*2 77 C2 C3 PHTX DST Java Movie
    2023/10/17 00:12:05 172 31 175 259 608 15.2*1 4.6e+14 7.0e+28 174 C2 C3 PHTX DST Java Movie Poor Event
    2023/10/17 02:48:05 354 34 358 393 430 3.5*1 7.2e+14 4.6e+29 1 C2 C3 PHTX DST Java Movie Poor Event
    2023/10/17 03:12:09 319 33 212 231 465 7.4*1 1.7e+14 3.9e+28 318 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2023/10/17 05:24:06 206 205 610 662 690 6.6*1 1.5e+15*2 2.9e+30*2 219 C2 C3 PHTX DST Java Movie Poor Event; Partial Halo
    2023/10/17 13:25:53 267 36 174 195 435 6.8*1 3.4e+13 5.2e+27 271 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2023/10/18 02:48:05 33 221 478 534 528 4.2*1 1.1e+16*2 1.3e+31*2 4 C2 C3 PHTX DST Java Movie Partial Halo
    2023/10/18 06:12:05 165 124 636 484 92 -26.6*1 5.1e+14*2 1.0e+30*2 156 C2 C3 PHTX DST Java Movie Poor Event; Partial Halo
    2023/10/18 17:00:06 274 63 228 272 561 11.5*1 1.5e+14 3.9e+28 276 C2 C3 PHTX DST Java Movie Only C2
    2023/10/18 23:36:06 309 17 219 132 0 -26.5*1 ---- ---- 311 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2023/10/19 01:37:01 334 227 636 767 708 9.5 1.3e+16*2 2.6e+31*2 314 C2 C3 PHTX DST Java Movie Partial Halo
    2023/10/19 06:48:05 81 19 966 872 741 -23.2 ---- ---- 86 C2 C3 PHTX DST Java Movie
    2023/10/19 07:12:05 302 39 526 605 706 12.4*1 3.0e+14 4.2e+29 303 C2 C3 PHTX DST Java Movie
    2023/10/19 10:36:05 81 20 640 439 0 -104.2*1 4.5e+13 9.2e+28 84 C2 C3 PHTX DST Java Movie Poor Event
    2023/10/19 15:24:06 Halo 360 500 431 455 -4.6 5.9e+15*2 7.4e+30*2 158 C2 C3 PHTX DST Java Movie
    2023/10/20 12:47:05 294 54 377 352 345 -1.7*1 8.6e+14 6.1e+29 303 C2 C3 PHTX DST Java Movie Newly inserted on 2024/04/28
    2023/10/20 22:58:07 68 41 242 197 165 -2.2*1 1.2e+15 3.5e+29 67 C2 C3 PHTX DST Java Movie Newly inserted on 2024/04/28; Poor Event
    2023/10/21 00:16:06 237 100 234 559 481 10.6*1 4.2e+15 1.1e+30 222 C2 C3 PHTX DST Java Movie Poor Event
    2023/10/21 05:28:09 84 15 485 73 0 -111.5*1 ---- ---- 82 C2 C3 PHTX DST Java Movie Poor Event
    2023/10/21 08:17:05 228 45 563 424 0 -31.2*1 1.5e+14 2.3e+29 225 C2 C3 PHTX DST Java Movie
    2023/10/21 13:16:07 46 30 286 303 472 6.1*1 1.1e+14 4.3e+28 46 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2023/10/21 20:25:05 323 65 349 574 501 9.9*1 3.9e+15 2.4e+30 329 C2 C3 PHTX DST Java Movie Poor Event
    2023/10/22 00:06:06 275 67 221 243 263 1.2*1 9.1e+14 2.2e+29 270 C2 C3 PHTX DST Java Movie
    2023/10/22 02:03:05 282 106 287 134 0 -15.7*1 1.2e+14 5.1e+28 271 C2 C3 PHTX DST Java Movie Poor Event
    2023/10/22 17:52:06 285 48 396 369 377 -1.4 2.2e+15 1.7e+30 292 C2 C3 PHTX DST Java Movie
    2023/10/22 22:25:07 20 192 489 552 520 3.3 1.1e+16*2 1.3e+31*2 31 C2 C3 PHTX DST Java Movie Partial Halo
    2023/10/22 23:56:07 196 165 764 992 898 19.8 6.3e+15*2 1.8e+31*2 192 C2 C3 PHTX DST Java Movie Partial Halo
    2023/10/23 10:07:06 293 64 352 526 480 7.7 2.4e+15 1.5e+30 324 C2 C3 PHTX DST Java Movie
    2023/10/23 15:19:05 241 58 304 413 450 6.6 1.4e+15 6.6e+29 245 C2 C3 PHTX DST Java Movie
    2023/10/23 21:23:08 300 123 391 325 269 -5.5 1.1e+15*2 8.4e+29*2 293 C2 C3 PHTX DST Java Movie Partial Halo
    2023/10/24 00:12:06 28 20 266 269 283 0.5*1 6.5e+13 2.3e+28 34 C2 C3 PHTX DST Java Movie Very Poor Event
    2023/10/24 10:00:07 45 19 249 285 349 3.1*1 ---- ---- 43 C2 C3 PHTX DST Java Movie
    2023/10/24 10:36:05 184 85 624 598 595 -2.9*1 9.2e+14 1.8e+30 186 C2 C3 PHTX DST Java Movie Poor Event
    2023/10/24 17:00:05 104 177 512 428 479 -5.6 4.4e+15*2 5.8e+30*2 93 C2 C3 PHTX DST Java Movie Partial Halo
    2023/10/24 18:12:05 336 42 264 304 398 4.4*1 5.3e+14 1.8e+29 327 C2 C3 PHTX DST Java Movie Poor Event
    2023/10/24 20:48:05 93 56 549 606 708 10.7*1 3.8e+14 5.8e+29 105 C2 C3 PHTX DST Java Movie
    2023/10/25 02:01:20 323 42 175 189 341 3.8*1 1.7e+14 2.7e+28 314 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2023/10/25 13:25:55 118 95 581 525 322 -12.3*1 4.0e+14 6.7e+29 133 C2 C3 PHTX DST Java Movie Poor Event
    2023/10/25 22:36:06 305 123 444 327 399 -6.4*1 6.7e+14*2 6.6e+29*2 306 C2 C3 PHTX DST Java Movie Partial Halo
    2023/10/26 04:36:05 149 53 255 229 151 -2.4*1 2.5e+14 8.0e+28 158 C2 C3 PHTX DST Java Movie
    2023/10/26 23:14:06 Halo 360 1238 1194 1209 -7.3 1.4e+16*2 1.1e+32*2 86 C2 C3 PHTX DST Java Movie
    2023/10/27 11:12:10 161 89 456 491 474 2.1 1.4e+14 1.5e+29 171 C2 C3 PHTX DST Java Movie
    2023/10/28 10:36:05 128 211 250 469 456 8.6 6.0e+15*2 1.9e+30*2 151 C2 C3 PHTX DST Java Movie Partial Halo
    2023/10/28 23:48:05 93 62 308 276 130 -4.0*1 6.5e+14 3.1e+29 81 C2 C3 PHTX DST Java Movie
    2023/10/29 03:12:11 87 72 140 124 90 -0.7*1 2.3e+15 2.3e+29 91 C2 C3 PHTX DST Java Movie Poor Event
    2023/10/29 08:36:05 182 31 358 339 325 -1.5*1 1.4e+13 9.1e+27 183 C2 C3 PHTX DST Java Movie Poor Event
    2023/10/29 16:12:05 99 54 185 183 168 -0.3*1 2.9e+14 4.9e+28 111 C2 C3 PHTX DST Java Movie Poor Event
    2023/10/30 00:24:05 Halo 360 507 449 400 -6.9 3.2e+12*2 4.2e+27*2 331 C2 C3 PHTX DST Java Movie
    2023/10/30 17:24:07 335 181 332 256 0 -8.3*1 3.0e+14*2 1.7e+29*2 348 C2 C3 PHTX DST Java Movie Poor Event; Partial Halo
    2023/10/30 18:00:05 96 50 173 224 322 3.6*1 1.2e+15 1.7e+29 96 C2 C3 PHTX DST Java Movie Poor Event
    2023/10/31 05:48:05 31 164 356 436 416 3.9 5.1e+15*2 3.2e+30*2 11 C2 C3 PHTX DST Java Movie Partial Halo
    2023/10/31 20:36:06 95 41 347 209 0 -64.8 3.0e+15 1.8e+30 100 C2 C3 PHTX DST Java Movie Only C2
    2023/10/31 21:12:09 101 204 632 594 617 -2.7 1.2e+16*2 2.4e+31*2 123 C2 C3 PHTX DST Java Movie Partial Halo
    2023/10/31 22:12:06 229 155 634 709 665 5.4 4.1e+15*2 8.3e+30*2 193 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).