• 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
    2022/03/01 04:00:05 327 38 130 103 0 -5.1*1 1.5e+14 1.3e+28 332 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2022/03/01 05:36:05 110 39 345 502 736 21.2*1 2.2e+13 1.3e+28 103 C2 C3 PHTX DST Java Movie Poor Event
    2022/03/01 11:48:05 90 73 367 412 488 5.6*1 1.1e+14 7.5e+28 96 C2 C3 PHTX DST Java Movie Poor Event
    2022/03/02 01:36:22 237 22 435 594 714 19.0*1 3.7e+13 3.5e+28 238 C2 C3 PHTX DST Java Movie Poor Event
    2022/03/02 12:00:05 95 97 556 368 251 -18.4*1 6.7e+14 1.0e+30 90 C2 C3 PHTX DST Java Movie Poor Event
    2022/03/02 15:37:39 320 71 387 414 568 8.0*1 5.6e+14 4.2e+29 325 C2 C3 PHTX DST Java Movie Only C2
    2022/03/02 17:36:06 233 18 442 394 365 -4.5*1 ---- ---- 236 C2 C3 PHTX DST Java Movie Poor Event
    2022/03/02 18:12:05 81 128 266 356 345 3.6 3.7e+15*2 1.3e+30*2 76 C2 C3 PHTX DST Java Movie Partial Halo
    2022/03/04 02:00:05 308 53 212 278 805 26.0*1 1.4e+14 3.2e+28 306 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2022/03/04 11:00:05 305 24 219 140 0 -34.9*1 5.1e+13 1.2e+28 308 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2022/03/04 17:36:05 116 39 235 211 0 -7.8*1 1.3e+13 3.5e+27 125 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2022/03/04 18:00:05 243 94 293 332 338 2.0*1 1.2e+15 5.0e+29 231 C2 C3 PHTX DST Java Movie Poor Event
    2022/03/04 20:12:05 93 99 359 248 0 -16.8*1 3.2e+14 2.0e+29 105 C2 C3 PHTX DST Java Movie Poor Event
    2022/03/05 02:48:05 307 69 248 295 637 14.9*1 1.2e+14 3.7e+28 305 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2022/03/05 17:24:05 288 87 403 499 652 13.3*1 1.8e+15 1.4e+30 289 C2 C3 PHTX DST Java Movie
    2022/03/05 21:36:05 287 38 112 115 145 0.4*1 2.6e+14 1.6e+28 291 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2022/03/05 21:48:05 97 53 269 255 0 -3.6*1 2.3e+14 8.4e+28 98 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2022/03/06 01:25:49 100 47 225 199 0 -6.1*1 1.5e+14 3.7e+28 103 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2022/03/06 01:48:05 213 41 287 336 460 6.5*1 2.2e+14 9.2e+28 215 C2 C3 PHTX DST Java Movie Poor Event
    2022/03/06 04:36:05 93 86 224 193 94 -2.2*1 8.2e+14 2.1e+29 99 C2 C3 PHTX DST Java Movie Poor Event
    2022/03/07 00:12:05 314 204 241 331 500 9.5*1 7.3e+14*2 2.1e+29*2 306 C2 C3 PHTX DST Java Movie Poor Event; Partial Halo
    2022/03/07 14:12:05 117 107 343 317 310 -1.6*1 2.3e+15 1.3e+30 110 C2 C3 PHTX DST Java Movie
    2022/03/08 02:00:05 343 133 166 223 498 9.7*1 1.5e+15*2 2.0e+29*2 326 C2 C3 PHTX DST Java Movie Only C2; Partial Halo
    2022/03/08 04:36:05 298 108 512 563 575 4.7 2.0e+15 2.7e+30 265 C2 C3 PHTX DST Java Movie
    2022/03/08 08:36:05 298 40 271 234 0 -11.0*1 4.5e+13 1.7e+28 293 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2022/03/08 09:36:05 79 68 184 229 335 3.9*1 4.1e+14 6.9e+28 84 C2 C3 PHTX DST Java Movie Poor Event
    2022/03/09 00:24:05 104 135 149 377 355 5.4 4.0e+15*2 4.5e+29*2 108 C2 C3 PHTX DST Java Movie Partial Halo
    2022/03/09 02:00:05 106 10 280 336 536 11.0*1 ---- ---- 106 C2 C3 PHTX DST Java Movie Very Poor Event
    2022/03/09 03:12:10 279 43 150 109 0 -12.5*1 1.4e+14 1.5e+28 278 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2022/03/09 23:48:05 114 162 277 416 366 4.8 1.6e+15*2 6.3e+29*2 102 C2 C3 PHTX DST Java Movie Partial Halo
    2022/03/10 15:12:09 73 19 746 659 534 -17.4*1 ---- ---- 81 C2 C3 PHTX DST Java Movie
    2022/03/10 17:12:05 106 29 365 466 527 8.8*1 1.0e+14 6.6e+28 115 C2 C3 PHTX DST Java Movie Poor Event
    2022/03/10 18:48:05 Halo 360 742 1087 983 32.4 1.3e+16*2 3.7e+31*2 0 C2 C3 PHTX DST Java Movie
    2022/03/11 00:12:06 73 28 696 656 473 -13.5*1 2.2e+14 5.3e+29 79 C2 C3 PHTX DST Java Movie Poor Event
    2022/03/12 00:12:06 242 112 506 614 559 6.2 6.7e+15 8.6e+30 238 C2 C3 PHTX DST Java Movie
    2022/03/12 09:12:10 267 40 147 142 120 -0.4*1 9.4e+14 1.0e+29 263 C2 C3 PHTX DST Java Movie Poor Event
    2022/03/12 21:24:06 38 12 430 578 983 36.5*1 ---- ---- 43 C2 C3 PHTX DST Java Movie Poor Event
    2022/03/13 05:36:05 78 42 195 206 284 1.9*1 6.7e+14 1.3e+29 76 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2022/03/13 12:12:07 190 64 215 259 353 4.0*1 8.9e+13 2.1e+28 195 C2 C3 PHTX DST Java Movie Poor Event
    2022/03/13 18:24:05 261 17 271 156 0 -11.0*1 ---- ---- 257 C2 C3 PHTX DST Java Movie Very Poor Event
    2022/03/13 19:12:05 98 58 176 384 347 5.2*1 6.2e+14 9.7e+28 98 C2 C3 PHTX DST Java Movie
    2022/03/14 00:12:05 249 46 187 247 591 13.7*1 1.0e+14 1.7e+28 255 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2022/03/14 11:24:05 144 118 93 178 289 3.5*1 2.0e+15 8.8e+28 173 C2 C3 PHTX DST Java Movie
    2022/03/14 17:36:05 207 225 740 526 451 -27.0 5.8e+15*2 1.6e+31*2 238 C2 C3 PHTX DST Java Movie Partial Halo
    2022/03/14 22:12:05 146 173 506 689 663 14.1 2.4e+15*2 3.0e+30*2 167 C2 C3 PHTX DST Java Movie Partial Halo
    2022/03/16 13:25:47 55 192 491 513 531 2.5*1 4.0e+15*2 4.8e+30*2 50 C2 C3 PHTX DST Java Movie Partial Halo
    2022/03/16 15:05:47 246 51 322 121 0 -41.1*1 6.8e+14 3.5e+29 243 C2 C3 PHTX DST Java Movie Poor Event
    2022/03/16 16:48:05 257 69 377 338 325 -2.9 3.2e+15 2.3e+30 246 C2 C3 PHTX DST Java Movie
    2022/03/17 01:25:49 180 21 514 55 0 -281.8*1 6.7e+13*2 8.8e+28*2 186 C2 C3 PHTX DST Java Movie Very Poor Event
    2022/03/17 07:48:05 252 35 172 196 306 3.0*1 2.4e+14 3.6e+28 252 C2 C3 PHTX DST Java Movie Poor Event
    2022/03/17 11:00:05 254 31 159 111 0 -10.6*1 7.9e+13 1.0e+28 254 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2022/03/17 17:24:05 247 59 214 213 212 -0.0*1 3.4e+15 7.7e+29 241 C2 C3 PHTX DST Java Movie
    2022/03/18 03:24:05 247 80 256 393 448 7.5*1 4.3e+14 1.4e+29 242 C2 C3 PHTX DST Java Movie
    2022/03/18 12:24:05 116 17 341 311 145 -5.5*1 ---- ---- 116 C2 C3 PHTX DST Java Movie Poor Event
    2022/03/18 22:24:05 242 45 200 225 386 4.9*1 1.6e+13 3.2e+27 238 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2022/03/19 06:00:05 69 46 263 329 754 22.0*1 1.7e+14 5.8e+28 70 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2022/03/19 06:36:06 247 82 329 337 370 1.4*1 2.0e+14 1.1e+29 225 C2 C3 PHTX DST Java Movie Poor Event
    2022/03/19 15:12:09 128 38 162 252 430 7.4*1 2.2e+14 2.9e+28 130 C2 C3 PHTX DST Java Movie Poor Event
    2022/03/20 10:48:05 32 88 113 129 153 0.5*1 7.5e+14 4.8e+28 38 C2 C3 PHTX DST Java Movie Poor Event
    2022/03/20 13:36:22 99 62 167 197 250 1.8*1 1.1e+15 1.6e+29 99 C2 C3 PHTX DST Java Movie Poor Event
    2022/03/20 17:12:05 114 10 437 468 534 5.2*1 ---- ---- 118 C2 C3 PHTX DST Java Movie Poor Event
    2022/03/21 06:00:05 Halo 360 916 820 882 -10.0 1.5e+16*2 6.3e+31*2 198 C2 C3 PHTX DST Java Movie
    2022/03/21 07:24:05 239 73 274 489 423 7.4 9.7e+14 3.6e+29 234 C2 C3 PHTX DST Java Movie
    2022/03/21 10:48:05 112 8 331 289 0 -19.7*1 ---- ---- 110 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2022/03/21 19:36:05 96 20 641 1061 2688 297.6*1 7.5e+13 1.5e+29 95 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2022/03/22 14:24:05 69 48 176 141 0 -3.7*1 5.2e+14 8.0e+28 67 C2 C3 PHTX DST Java Movie Poor Event
    2022/03/22 18:48:05 59 88 338 484 486 8.2 2.7e+15 1.5e+30 58 C2 C3 PHTX DST Java Movie
    2022/03/23 08:48:07 114 13 953 1196 1644 92.5*1 ---- ---- 116 C2 C3 PHTX DST Java Movie
    2022/03/23 15:27:00 242 38 243 350 814 26.6*1 8.1e+13 2.4e+28 235 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2022/03/23 17:48:05 105 17 410 324 0 -13.1*1 ---- ---- 105 C2 C3 PHTX DST Java Movie Very Poor Event
    2022/03/24 02:24:05 66 16 256 362 471 8.1*1 ---- ---- 64 C2 C3 PHTX DST Java Movie Very Poor Event
    2022/03/24 07:00:05 236 40 184 256 805 26.1*1 6.1e+13 1.0e+28 229 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2022/03/24 17:24:05 229 42 205 254 601 13.9*1 1.6e+14 3.4e+28 230 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2022/03/25 05:48:05 Halo 360 495 594 662 11.9*1 2.7e+15*2 3.4e+30*2 97 C2 C3 PHTX DST Java Movie
    2022/03/25 11:00:05 99 16 408 462 837 24.0*1 ---- ---- 98 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2022/03/25 22:00:05 71 44 319 321 324 0.2*1 7.6e+14 3.9e+29 74 C2 C3 PHTX DST Java Movie
    2022/03/26 22:12:05 292 80 214 213 211 -0.1*1 6.2e+14 1.4e+29 298 C2 C3 PHTX DST Java Movie Poor Event
    2022/03/27 14:12:05 109 19 219 436 1422 83.4*1 ---- ---- 105 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2022/03/27 15:48:06 290 335 322 314 214 -2.5*1 2.4e+14*2 1.2e+29*2 104 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2; Partial Halo
    2022/03/27 19:24:05 117 41 177 213 404 5.9*1 ---- ---- 111 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2022/03/28 00:24:05 119 54 507 396 293 -12.3*1 9.0e+14 1.2e+30 129 C2 C3 PHTX DST Java Movie Poor Event
    2022/03/28 12:00:05 Halo 360 702 438 0 -47.0*1 1.5e+16*2 3.7e+31*2 127 C2 C3 PHTX DST Java Movie Poor Event
    2022/03/28 20:24:05 Halo 360 905 1048 1300 46.9*1 3.0e+15*2 1.2e+31*2 299 C2 C3 PHTX DST Java Movie Poor Event
    2022/03/30 05:12:05 168 59 451 516 685 13.1*1 1.4e+14 1.4e+29 174 C2 C3 PHTX DST Java Movie Poor Event
    2022/03/30 06:24:06 Halo 360 764 853 876 12.8 8.6e+15*2 2.5e+31*2 41 C2 C3 PHTX DST Java Movie
    2022/03/30 18:00:05 Halo 360 641 573 531 -9.3*1 6.1e+15*2 1.3e+31*2 298 C2 C3 PHTX DST Java Movie
    2022/03/31 03:12:09 118 157 302 271 187 -3.1 3.0e+15*2 1.4e+30*2 141 C2 C3 PHTX DST Java Movie Partial Halo
    2022/03/31 19:12:05 Halo 360 489 490 491 0.1*1 5.0e+15*2 6.0e+30*2 261 C2 C3 PHTX DST Java Movie
    2022/03/31 20:24:05 60 78 415 613 546 10.3 2.1e+15 1.8e+30 46 C2 C3 PHTX DST Java Movie

    *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).