• 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
    2017/06/01 00:12:05 86 38 148 155 260 2.1*1 1.2e+14 1.3e+28 95 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2017/06/01 02:12:05 89 59 444 545 659 13.3*1 7.2e+14 7.1e+29 86 C2 C3 PHTX DST Java Movie
    2017/06/01 05:48:05 80 36 307 372 622 13.8*1 1.8e+14 8.7e+28 85 C2 C3 PHTX DST Java Movie
    2017/06/01 08:24:05 87 59 285 395 547 11.2*1 5.0e+14 2.1e+29 88 C2 C3 PHTX DST Java Movie
    2017/06/01 12:00:05 92 53 304 404 1306 69.2*1 1.5e+14 7.0e+28 92 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2017/06/01 12:48:05 97 86 464 585 557 8.1 6.1e+15 6.5e+30 99 C2 C3 PHTX DST Java Movie
    2017/06/01 22:36:05 96 29 140 177 217 1.6*1 3.0e+14 3.0e+28 91 C2 C3 PHTX DST Java Movie Poor Event
    2017/06/02 00:24:05 75 13 628 569 0 -81.7*1 ---- ---- 78 C2 C3 PHTX DST Java Movie Poor Event; Only 3 points; Only C2
    2017/06/02 08:48:25 75 9 670 586 0 -46.5*1 ---- ---- 76 C2 C3 PHTX DST Java Movie Only C2
    2017/06/02 18:00:05 344 10 289 404 1373 78.8*1 ---- ---- 342 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2017/06/02 18:36:07 100 42 456 616 1298 66.1*1 1.9e+14 1.9e+29 90 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2017/06/02 19:24:05 255 28 143 167 302 3.1*1 6.6e+13 6.8e+27 248 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2017/06/02 21:24:05 104 37 100 49 0 -5.2*1 3.0e+13 1.5e+27 109 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2017/06/03 07:48:05 105 16 341 445 571 11.2*1 ---- ---- 112 C2 C3 PHTX DST Java Movie
    2017/06/03 11:36:05 283 28 227 204 0 -4.6*1 ---- ---- 275 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2017/06/04 14:24:05 114 61 258 410 419 6.7*1 1.5e+15 4.9e+29 110 C2 C3 PHTX DST Java Movie
    2017/06/05 10:36:06 240 86 162 20 0 -16.6*1 6.3e+14 8.2e+28 227 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2017/06/05 12:12:06 74 44 283 351 729 20.2*1 3.8e+14 1.5e+29 82 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2017/06/06 23:12:12 265 6 296 334 374 3.5*1 ---- ---- 265 C2 C3 PHTX DST Java Movie Very Poor Event
    2017/06/07 07:24:06 274 16 253 347 723 21.0*1 ---- ---- 269 C2 C3 PHTX DST Java Movie Very Poor Event
    2017/06/07 12:24:05 110 23 272 309 551 10.3*1 4.5e+13 1.7e+28 108 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2017/06/07 21:12:08 93 47 565 557 530 -2.0*1 2.7e+14 4.3e+29 98 C2 C3 PHTX DST Java Movie Poor Event
    2017/06/08 11:24:06 117 42 215 222 280 1.6*1 6.4e+13 1.5e+28 105 C2 C3 PHTX DST Java Movie Poor Event
    2017/06/09 13:45:21 56 29 14 12 0 -0.0*1 9.8e+13 9.6e+25 57 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2017/06/09 20:00:35 271 37 220 242 256 1.5*1 3.3e+13 7.9e+27 271 C2 C3 PHTX DST Java Movie Poor Event; Only C3
    2017/06/09 21:13:33 99 27 185 210 251 1.9*1 1.4e+14 2.5e+28 102 C2 C3 PHTX DST Java Movie Poor Event; Only C3
    2017/06/10 23:12:10 89 85 179 161 0 -2.0*1 1.2e+15 1.9e+29 99 C2 C3 PHTX DST Java Movie Poor Event
    2017/06/11 02:00:05 85 93 304 397 347 3.3 1.4e+16 6.6e+30 97 C2 C3 PHTX DST Java Movie
    2017/06/11 02:36:05 275 53 372 454 494 6.6 2.1e+15 1.4e+30 286 C2 C3 PHTX DST Java Movie
    2017/06/11 23:12:10 267 64 239 363 867 30.8*1 ---- ---- 276 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2017/06/12 05:00:05 273 67 174 371 316 4.4 5.5e+15 8.4e+29 263 C2 C3 PHTX DST Java Movie
    2017/06/12 08:36:05 93 21 148 207 705 19.9*1 8.3e+13 9.1e+27 97 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2017/06/13 01:25:43 260 35 281 304 365 2.8*1 1.1e+14 4.5e+28 256 C2 C3 PHTX DST Java Movie
    2017/06/13 07:00:05 270 29 220 278 585 13.1*1 2.1e+14 5.1e+28 271 C2 C3 PHTX DST Java Movie Only C2
    2017/06/13 13:48:06 271 42 290 350 598 12.5*1 1.6e+14 6.6e+28 270 C2 C3 PHTX DST Java Movie Poor Event
    2017/06/13 20:00:05 261 66 239 264 320 2.3*1 9.7e+14 2.8e+29 264 C2 C3 PHTX DST Java Movie
    2017/06/14 10:36:05 260 41 205 352 390 6.3*1 2.4e+15 4.9e+29 260 C2 C3 PHTX DST Java Movie Poor Event
    2017/06/14 14:47:11 50 11 477 23 0 -237.7*1 ---- ---- 52 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2017/06/14 21:24:05 270 52 326 266 0 -10.6*1 1.8e+14 9.3e+28 267 C2 C3 PHTX DST Java Movie Poor Event
    2017/06/15 01:25:21 265 54 365 430 471 5.7*1 7.5e+14 5.0e+29 268 C2 C3 PHTX DST Java Movie Poor Event
    2017/06/15 02:36:05 265 53 360 391 424 3.0*1 4.1e+14 2.7e+29 269 C2 C3 PHTX DST Java Movie
    2017/06/15 05:12:05 256 25 311 289 270 -1.6 3.1e+13 1.5e+28 257 C2 C3 PHTX DST Java Movie
    2017/06/15 08:48:06 268 64 486 467 470 -1.3 7.5e+14 8.9e+29 272 C2 C3 PHTX DST Java Movie
    2017/06/15 12:48:05 135 7 737 --- --- --- ---- ---- 130 C2 C3 PHTX DST Java Movie Very Poor Event; Only 2 points; Only C2
    2017/06/15 13:36:25 256 15 365 348 222 -4.4*1 ---- ---- 252 C2 C3 PHTX DST Java Movie Poor Event
    2017/06/15 21:38:34 288 11 233 134 0 -9.9*1 ---- ---- 286 C2 C3 PHTX DST Java Movie Very Poor Event
    2017/06/16 13:25:45 263 62 214 323 746 22.7*1 ---- ---- 278 C2 C3 PHTX DST Java Movie Only C2
    2017/06/17 03:24:05 249 11 117 146 283 3.0*1 ---- ---- 253 C2 C3 PHTX DST Java Movie Poor Event
    2017/06/17 07:24:06 277 110 314 282 283 -1.6 7.6e+15 3.7e+30 253 C2 C3 PHTX DST Java Movie
    2017/06/17 08:48:05 93 38 139 219 395 6.4*1 4.3e+14 4.2e+28 94 C2 C3 PHTX DST Java Movie Very Poor Event
    2017/06/17 10:36:05 310 82 254 290 310 2.1 3.3e+15 1.1e+30 307 C2 C3 PHTX DST Java Movie
    2017/06/17 21:36:05 290 17 396 334 0 -20.1*1 ---- ---- 290 C2 C3 PHTX DST Java Movie Poor Event
    2017/06/18 18:48:05 71 12 381 344 119 -6.7*1 ---- ---- 80 C2 C3 PHTX DST Java Movie Poor Event
    2017/06/19 05:00:05 92 50 486 256 0 -33.8*1 3.4e+14 4.0e+29 84 C2 C3 PHTX DST Java Movie
    2017/06/19 16:48:05 87 42 335 442 969 37.4*1 9.1e+13 5.1e+28 84 C2 C3 PHTX DST Java Movie Only C2
    2017/06/20 06:24:05 82 69 668 905 844 20.9 9.6e+15 2.2e+31 76 C2 C3 PHTX DST Java Movie
    2017/06/23 08:48:25 264 15 208 202 0 -1.9*1 ---- ---- 270 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2017/06/25 01:36:13 266 14 167 90 0 -28.6*1 ---- ---- 268 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2017/06/25 03:36:06 358 7 203 64 0 -107.5*1 ---- ---- 356 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2017/06/25 05:36:05 277 47 196 209 313 2.7*1 ---- ---- 278 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2017/06/27 03:12:08 98 33 152 167 338 4.0*1 2.5e+13 2.9e+27 91 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2017/06/28 08:00:05 302 10 166 196 812 27.0*1 ---- ---- 302 C2 C3 PHTX DST Java Movie Very Poor Event; Only C2
    2017/06/28 15:12:08 95 51 244 254 331 2.3*1 4.5e+14 1.3e+29 98 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2017/06/28 16:00:05 269 182 229 295 409 5.8*1 1.5e+15*2 4.0e+29*2 310 C2 C3 PHTX DST Java Movie Poor Event; 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).