• 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
    2004/09/01 02:30:05 123 36 273 405 1136 51.8*1 2.3e+14 8.7e+28 117 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2
    2004/09/01 03:30:05 260 67 401 293 0 -12.0 1.2e+14 9.4e+28 269 C2 C3 195 PHTX DST Java Movie
    2004/09/01 15:38:12 Halo (BA) 360 420 462 478 3.9 1.0e+15*2 9.2e+29*2 249 C2 C3 195 PHTX DST Java Movie MailLog1
    2004/09/01 23:06:07 294 10 ---- --- --- --- ---- ---- 290 C2 C3 195 PHTX DST Java Movie Very Poor Event; Unable to measure
    2004/09/02 09:06:05 290 8 425 358 0 -47.0*1 ---- ---- 287 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2004/09/02 16:54:29 245 48 177 270 447 7.8*1 5.1e+14 8.0e+28 243 C2 C3 195 PHTX DST Java Movie
    2004/09/03 00:30:05 Halo (BA) 360 751 682 606 -13.7*1 2.9e+15*2 8.2e+30*2 125 C2 C3 195 PHTX DST Java Movie MailLog1
    2004/09/03 00:54:05 Halo 360 369 369 369 -0.0 3.7e+15*2 2.5e+30*2 119 C2 C3 195 PHTX DST Java Movie Newly inserted on 2006/06/21
    2004/09/03 10:30:18 Halo (BA) 360 737 698 697 -4.9 3.7e+15*2 1.0e+31*2 331 C2 C3 195 PHTX DST Java Movie MailLog1
    2004/09/03 19:31:48 293 34 338 327 297 -1.4 3.6e+14 2.1e+29 291 C2 C3 195 PHTX DST Java Movie
    2004/09/04 02:06:05 273 41 359 613 880 31.4 5.7e+14 3.7e+29 279 C2 C3 195 PHTX DST Java Movie
    2004/09/04 06:54:05 Halo (BA) 360 1067 909 978 -22.7 5.0e+15*2 2.9e+31*2 107 C2 C3 195 PHTX DST Java Movie MailLog1
    2004/09/05 05:30:05 86 29 232 258 399 5.1*1 1.1e+14 3.0e+28 88 C2 C3 195 PHTX DST Java Movie Poor Event
    2004/09/05 06:54:06 310 87 580 657 624 5.7 1.1e+15 1.8e+30 303 C2 C3 195 PHTX DST Java Movie
    2004/09/05 07:54:05 85 133 441 415 280 -5.7 2.4e+15*2 2.3e+30*2 92 C2 C3 195 PHTX DST Java Movie Partial Halo
    2004/09/05 18:54:05 92 118 639 663 685 3.9 5.6e+15 1.2e+31 103 C2 C3 195 PHTX DST Java Movie UVCS
    2004/09/05 20:58:41 103 >172 1173 1114 1147 -8.4 4.0e+15*2 2.8e+31*2 103 C2 C3 195 PHTX DST Java Movie Uncertain Width; Partial Halo
    2004/09/06 10:30:18 112 62 289 279 270 -0.7*1 6.6e+14 2.8e+29 126 C2 C3 195 PHTX DST Java Movie
    2004/09/06 17:30:05 178 139 344 557 576 12.9 4.9e+15*2 2.9e+30*2 148 C2 C3 195 PHTX DST Java Movie Partial Halo
    2004/09/07 15:30:06 97 214 757 733 748 -1.9 4.2e+15*2 1.2e+31*2 80 C2 C3 195 PHTX DST Java Movie UVCS Partial Halo
    2004/09/07 19:31:48 224 127 257 389 768 23.8*1 1.7e+15*2 5.5e+29*2 235 C2 C3 195 PHTX DST Java Movie Partial Halo
    2004/09/08 03:06:05 228 168 242 234 233 -0.4*1 6.8e+13*2 2.0e+28*2 224 C2 C3 195 PHTX DST Java Movie Poor Event; Partial Halo
    2004/09/08 12:06:06 242 42 296 379 556 11.4*1 3.2e+13 1.4e+28 238 C2 C3 195 PHTX DST Java Movie Newly inserted on 2007/07/26; Poor Event
    2004/09/08 19:31:49 110 10 379 253 0 -26.6 ---- ---- 110 C2 C3 195 PHTX DST Java Movie
    2004/09/08 23:06:05 99 52 512 --- --- --- 1.0e+14*2 1.3e+29*2 109 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 2 points; Only C2
    2004/09/09 06:06:05 101 52 257 289 604 12.8*1 3.1e+15*2 1.0e+30*2 99 C2 C3 195 PHTX DST Java Movie Only C2
    2004/09/09 07:31:48 82 122 607 618 612 0.8 6.9e+15*2 1.3e+31*2 87 C2 C3 195 PHTX DST Java Movie Partial Halo
    2004/09/09 11:54:05 276 84 320 308 265 -1.7 1.7e+14 8.9e+28 275 C2 C3 195 PHTX DST Java Movie
    2004/09/09 14:06:31 257 44 751 722 718 -3.8*1 5.2e+14 1.5e+30 265 C2 C3 195 PHTX DST Java Movie
    2004/09/10 20:34:11 89 23 545 945 1650 115.6*1 8.6e+13*2 1.3e+29*2 95 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points
    2004/09/10 22:19:05 253 45 379 530 734 20.6*1 2.0e+14 1.4e+29 265 C2 C3 195 PHTX DST Java Movie
    2004/09/11 00:54:06 257 46 461 566 542 7.5 8.5e+15 9.0e+30 268 C2 C3 PHTX DST Java Movie
    2004/09/12 00:36:06 Halo (BA) 360 1328 1484 1405 22.5 1.9e+16*2 1.7e+32*2 132 C2 C3 PHTX DST Java Movie MailLog1
    2004/09/12 12:12:05 246 9 505 571 757 17.4*1 ---- ---- 249 C2 C3 PHTX DST Java Movie
    2004/09/12 18:48:12 262 30 182 97 0 -33.4*1 8.6e+14 1.4e+29 258 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2004/09/13 02:24:12 48 28 359 416 513 7.0*1 7.9e+13 5.1e+28 52 C2 C3 PHTX DST Java Movie
    2004/09/13 20:48:05 262 47 289 --- --- --- 3.9e+13*2 1.6e+28*2 268 C2 C3 PHTX DST Java Movie UVCS Poor Event; Only 2 points; Only C2
    2004/09/14 01:24:06 102 32 564 468 0 -18.4*1 5.8e+14 9.2e+29 106 C2 C3 PHTX DST Java Movie
    2004/09/14 03:12:09 135 106 271 301 398 4.2 1.2e+14 4.5e+28 121 C2 C3 PHTX DST Java Movie
    2004/09/14 10:12:05 Halo (BA) 360 462 387 0 -13.0*1 1.8e+15*2 2.0e+30*2 162 C2 C3 PHTX DST Java Movie Poor Event
    2004/09/15 09:12:08 148 16 376 360 287 -3.0*1 ---- ---- 142 C2 C3 PHTX DST Java Movie Poor Event
    2004/09/15 20:12:07 267 23 268 191 0 -41.8*1 1.0e+14 3.7e+28 266 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2004/09/16 03:24:05 38 25 308 184 0 -37.2*1 3.0e+13*2 1.4e+28*2 52 C2 C3 PHTX DST Java Movie Poor Event
    2004/09/16 15:36:05 129 57 298 408 384 4.5 1.3e+15 5.6e+29 120 C2 C3 PHTX DST Java Movie
    2004/09/16 16:12:07 53 34 528 370 0 -43.3*1 1.1e+14*2 1.5e+29*2 59 C2 C3 PHTX DST Java Movie Poor Event
    2004/09/16 21:24:07 141 42 309 422 859 29.1*1 1.5e+14 7.0e+28 137 C2 C3 PHTX DST Java Movie
    2004/09/17 21:18:05 144 101 247 93 0 -48.1*1 2.5e+14*2 7.6e+28*2 151 C2 C3 PHTX DST Java Movie Poor Event; Only C3
    2004/09/19 22:18:13 262 99 ---- --- --- --- 7.2e+14*2 3.6e+24*2 257 C2 C3 PHTX DST Java Movie Very Poor Event; Only C3; Unable to measure
    2004/09/20 08:42:05 248 23 528 668 890 50.4*1 2.4e+13*2 3.3e+28*2 245 C2 C3 PHTX DST Java Movie Poor Event; Only 3 points; Only C3
    2004/09/20 12:12:05 237 15 238 139 0 -36.3*1 ---- ---- 235 C2 C3 PHTX DST Java Movie Poor Event; Only C2
    2004/09/23 08:54:06 271 37 256 487 2457 249.4*1 4.0e+13*2 1.3e+28*2 267 C2 C3 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2004/09/23 13:24:05 150 15 211 244 275 2.2*1 ---- ---- 147 C2 C3 PHTX DST Java Movie
    2004/09/23 14:54:05 244 6 827 1223 3257 427.1*1 ---- ---- 241 C2 C3 PHTX DST Java Movie Poor Event; Only 3 points; Only C2
    2004/09/25 07:36:38 274 37 446 610 820 25.4*1 3.3e+14 3.3e+29 273 C2 C3 PHTX DST Java Movie
    2004/09/25 14:48:05 283 110 499 562 539 4.3 3.7e+15 4.6e+30 271 C2 C3 PHTX DST Java Movie
    2004/09/28 15:12:08 257 112 545 586 567 2.5*1 7.0e+14 1.0e+30 302 C2 C3 PHTX DST Java Movie
    2004/09/29 20:24:05 288 57 627 641 646 3.7*1 ---- ---- 297 C2 C3 PHTX DST Java Movie Only C3
    2004/09/30 10:24:13 311 21 ---- --- --- --- 5.5e+13*2 2.8e+23*2 298 C2 PHTX DST Java Movie Very Poor Event; Only C2; Unable to measure
    2004/09/30 10:24:13 66 29 ---- --- --- --- 2.7e+14*2 1.4e+24*2 67 C2 PHTX DST Java Movie Very Poor Event; Only C2; Unable to measure

    *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).