• 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
    1998/12/01 00:54:05 298 27 321 272 0 -11.4*1 1.7e+14 8.6e+28 287 C2 C3 195 SXT PHTX DST Java Movie
    1998/12/01 06:30:05 106 31 303 406 399 4.9 7.1e+14 3.3e+29 98 C2 C3 195 SXT PHTX DST Java Movie
    1998/12/01 09:30:08 233 10 400 377 251 -4.8*1 ---- ---- 236 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1998/12/01 13:54:06 281 66 334 314 252 -2.8 2.6e+13 1.4e+28 283 C2 C3 195 SXT PHTX DST Java Movie
    1998/12/01 19:54:06 341 17 237 396 500 10.7*1 ---- ---- 355 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1998/12/02 05:30:05 294 24 316 370 738 20.1*1 4.9e+13*2 2.5e+28*2 288 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only C2
    1998/12/02 05:30:05 95 33 304 185 0 -48.3*1 9.0e+13*2 4.2e+28*2 96 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only C2
    1998/12/02 06:30:05 234 5 754 935 1084 35.5 ---- ---- 242 C2 C3 195 SXT PHTX DST Java Movie
    1998/12/02 06:30:05 215 6 655 743 975 26.9*1 ---- ---- 219 C2 C3 195 SXT PHTX DST Java Movie
    1998/12/02 10:54:05 282 44 403 356 297 -4.6*1 1.3e+12 1.1e+27 304 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1998/12/03 04:54:05 87 40 209 237 345 3.6*1 7.9e+13 1.7e+28 90 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1998/12/03 06:30:05 48 33 84 72 0 -2.7*1 3.4e+14*2 1.2e+28*2 49 C2 C3 195 SXT PHTX DST Java Movie Only C2
    1998/12/03 09:30:08 90 36 529 439 0 -27.9 4.6e+14 6.4e+29 98 C2 C3 195 SXT PHTX DST Java Movie
    1998/12/03 22:30:05 139 48 195 --- --- --- 2.9e+13*2 5.5e+27*2 132 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only 2 points; Only C2
    1998/12/04 02:30:05 98 11 611 591 519 -5.6*1 ---- ---- 98 C2 C3 195 SXT PHTX DST Java Movie
    1998/12/04 03:54:05 247 12 532 863 1530 100.1*1 ---- ---- 255 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event
    1998/12/04 13:54:05 139 13 215 312 928 35.0*1 ---- ---- 135 C2 C3 195 SXT PHTX DST Java Movie Only 3 points; Only C2
    1998/12/04 15:30:08 290 44 687 620 300 -21.8*1 3.5e+14*2 8.3e+29*2 288 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only 3 points
    1998/12/04 21:30:10 227 65 238 268 366 3.7*1 1.1e+15 3.0e+29 234 C2 C3 195 SXT PHTX DST Java Movie UVCS
    1998/12/05 00:54:05 103 12 268 258 197 -1.9*1 ---- ---- 105 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1998/12/05 00:54:05 231 34 143 139 123 -0.3*1 3.4e+14 3.4e+28 230 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1998/12/05 04:30:05 292 48 263 172 0 -15.4*1 4.3e+14 1.5e+29 292 C2 C3 195 SXT PHTX DST Java Movie
    1998/12/05 08:30:05 91 49 423 519 814 28.4*1 1.5e+14*2 1.3e+29*2 95 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1998/12/05 11:54:05 96 18 350 234 0 -26.4*1 ---- ---- 99 C2 C3 195 SXT PHTX DST Java Movie
    1998/12/05 11:54:05 292 41 234 421 967 39.1*1 5.3e+13 1.4e+28 304 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only C2
    1998/12/05 14:30:05 237 49 162 189 448 7.6*1 6.3e+13 8.2e+27 234 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only C2
    1998/12/05 19:32:02 340 23 ---- --- --- --- 6.3e+13*2 3.1e+23*2 342 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only 1 point; Only C2
    1998/12/05 22:18:05 311 10 214 276 471 9.8*1 ---- ---- 306 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1998/12/06 00:54:05 97 43 183 57 0 -45.1*1 1.2e+12*2 2.1e+26*2 100 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only C2
    1998/12/06 03:54:05 331 36 159 119 0 -14.5*1 1.0e+14*2 1.3e+28*2 335 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only 3 points; Only C2
    1998/12/06 05:30:06 95 24 327 205 0 -22.0*1 1.1e+14 6.0e+28 94 C2 C3 195 SXT PHTX DST Java Movie
    1998/12/06 10:30:06 237 32 166 142 0 -5.2*1 1.4e+14 1.9e+28 232 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only C2
    1998/12/06 10:54:05 118 73 806 640 662 -21.6 1.4e+15 4.5e+30 102 C2 C3 195 SXT PHTX DST Java Movie
    1998/12/06 15:30:09 94 34 125 112 0 -2.5*1 1.2e+14 9.6e+27 97 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only C2
    1998/12/06 19:31:59 93 38 174 160 0 -4.1*1 1.2e+13 1.7e+27 101 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only C2
    1998/12/06 23:54:05 92 38 162 251 840 29.2*1 5.1e+13*2 6.7e+27*2 88 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only 3 points; Only C2
    1998/12/07 02:30:05 92 32 147 101 0 -17.5*1 2.3e+13*2 2.5e+27*2 86 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only C2
    1998/12/07 06:30:06 95 29 301 317 382 2.8*1 8.3e+13 3.8e+28 98 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1998/12/07 11:30:05 329 12 274 318 417 5.1*1 ---- ---- 329 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1998/12/07 11:54:05 93 25 197 165 0 -8.6*1 7.9e+12 1.5e+27 104 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only C2
    1998/12/07 15:30:05 327 42 490 497 498 0.6 5.0e+14 6.0e+29 331 C2 C3 195 SXT PHTX DST Java Movie
    1998/12/07 22:30:05 98 36 175 164 0 -1.8*1 1.2e+14 1.9e+28 108 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only C2
    1998/12/08 00:54:05 241 42 258 270 313 1.6*1 7.5e+14 2.5e+29 240 C2 C3 195 SXT PHTX DST Java Movie
    1998/12/08 03:30:06 237 33 110 41 0 -8.5*1 1.9e+14 1.1e+28 236 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only C2
    1998/12/08 04:54:21 12 42 283 367 422 6.6*1 6.4e+14 2.6e+29 10 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1998/12/08 09:30:05 59 111 411 724 623 16.6 4.8e+15 4.0e+30 26 C2 C3 195 SXT PHTX DST Java Movie UVCS
    1998/12/08 10:54:05 84 42 202 256 384 5.3*1 1.1e+15 2.2e+29 94 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1998/12/08 19:04:10 207 74 ---- --- --- --- 2.6e+13*2 1.3e+23*2 208 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only 1 point; Only C2
    1998/12/09 02:30:05 246 47 232 278 271 1.7*1 1.3e+15 3.6e+29 251 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1998/12/09 03:30:05 14 22 342 546 509 10.4*1 9.6e+11 5.6e+26 15 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1998/12/09 06:54:05 311 30 144 180 368 5.1*1 2.1e+14 2.2e+28 308 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only C2
    1998/12/09 12:54:05 234 34 278 275 274 -0.2*1 1.0e+13 4.0e+27 231 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1998/12/09 13:54:05 10 8 484 693 650 15.8*1 ---- ---- 9 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1998/12/09 16:30:05 102 21 568 652 1169 47.2*1 8.9e+13*2 1.4e+29*2 100 C2 C3 195 SXT PHTX DST Java Movie
    1998/12/09 18:30:05 96 14 584 570 547 -2.4 ---- ---- 99 C2 C3 195 SXT PHTX DST Java Movie
    1998/12/09 18:30:05 308 52 217 193 0 -8.9*1 1.7e+14*2 3.9e+28*2 320 C2 C3 195 SXT PHTX DST Java Movie Only C2
    1998/12/09 21:30:08 313 46 225 261 535 10.3*1 1.5e+14 3.8e+28 318 C2 C3 195 SXT PHTX DST Java Movie
    1998/12/10 04:54:05 88 12 155 107 0 -13.2*1 ---- ---- 96 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only C2
    1998/12/10 09:54:05 312 59 299 435 810 26.3 5.9e+14 2.6e+29 319 C2 C3 195 SXT PHTX DST Java Movie
    1998/12/10 11:30:05 219 5 314 492 563 13.2 ---- ---- 220 C2 C3 195 SXT PHTX DST Java Movie
    1998/12/10 15:30:05 27 63 334 289 209 -4.2*1 9.6e+14 5.3e+29 13 C2 C3 195 SXT PHTX DST Java Movie
    1998/12/10 18:54:05 60 69 212 339 1281 68.1*1 4.4e+14*2 1.0e+29*2 64 C2 C3 195 SXT PHTX DST Java Movie Only 3 points; Only C2
    1998/12/10 19:54:05 332 74 203 173 0 -4.7*1 2.5e+14 5.2e+28 321 C2 C3 195 SXT PHTX DST Java Movie
    1998/12/10 23:30:05 50 126 591 641 923 23.4 2.8e+15*2 4.9e+30*2 41 C2 C3 195 SXT PHTX DST Java Movie Partial Halo
    1998/12/11 13:31:57 140 16 167 261 470 9.3*1 ---- ---- 132 SXT PHTX DST Java Movie Very Poor Event
    1998/12/12 00:54:05 63 13 287 375 389 4.6*1 ---- ---- 66 SXT PHTX DST Java Movie Poor Event
    1998/12/12 05:30:05 104 13 361 284 0 -44.0*1 ---- ---- 102 SXT PHTX DST Java Movie Poor Event; Only 3 points; Only C2
    1998/12/12 07:31:59 10 11 631 996 2008 164.2*1 ---- ---- 11 SXT PHTX DST Java Movie Poor Event; Only 3 points
    1998/12/12 12:54:05 124 35 241 212 0 -10.5*1 1.0e+14*2 3.0e+28*2 123 SXT PHTX DST Java Movie Poor Event; Only C2
    1998/12/14 03:30:05 76 45 193 234 635 16.1*1 9.6e+13*2 1.8e+28*2 81 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only C2
    1998/12/14 05:30:05 194 73 223 260 528 10.2*1 2.5e+14 6.2e+28 201 C2 C3 195 SXT PHTX DST Java Movie Only C2
    1998/12/14 09:54:05 296 5 524 559 752 14.0*1 ---- ---- 293 C2 C3 195 SXT PHTX DST Java Movie
    1998/12/14 15:30:05 90 32 485 523 551 4.4 3.0e+14 3.5e+29 87 C2 C3 195 SXT PHTX DST Java Movie
    1998/12/14 21:30:08 84 25 255 299 369 4.0*1 3.8e+13 1.2e+28 89 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1998/12/15 00:54:05 279 23 204 241 283 2.2*1 5.7e+13 1.2e+28 273 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1998/12/15 01:54:05 91 27 329 328 327 -0.1*1 5.6e+13 3.0e+28 96 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1998/12/15 07:54:05 225 5 ---- --- --- --- ---- ---- 230 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2007/10/09; Only 1 point; Only C2
    1998/12/15 08:30:05 276 49 207 138 0 -13.7*1 1.7e+14 3.6e+28 277 C2 C3 195 SXT PHTX DST Java Movie
    1998/12/15 12:54:06 246 64 197 297 1148 53.4*1 2.0e+14*2 3.8e+28*2 243 C2 C3 195 SXT PHTX DST Java Movie Only 3 points; Only C2
    1998/12/15 13:31:55 71 69 392 423 489 4.7 7.1e+14 5.5e+29 61 C2 C3 195 SXT PHTX DST Java Movie
    1998/12/15 19:31:55 216 9 115 --- --- --- ---- ---- 218 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2007/10/09; Only 2 points; Only C2
    1998/12/15 21:00:19 77 60 598 --- --- --- 1.5e+14*2 2.7e+29*2 72 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only 2 points; Only C2
    1998/12/16 00:54:05 102 115 487 545 707 13.8*1 8.1e+13 9.6e+28 69 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1998/12/16 01:31:56 213 14 145 187 502 10.0*1 ---- ---- 215 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only C2
    1998/12/16 05:30:05 166 70 363 257 0 -21.0 2.1e+14 1.4e+29 167 C2 C3 195 SXT PHTX DST Java Movie
    1998/12/16 16:30:06 251 52 203 257 408 6.5*1 1.1e+13 2.3e+27 250 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1998/12/16 19:31:57 133 82 201 196 0 -1.8*1 2.4e+14*2 4.8e+28*2 117 C2 C3 195 SXT PHTX DST Java Movie Only C2
    1998/12/16 23:54:05 76 92 353 395 554 9.8*1 8.6e+13 5.4e+28 86 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event
    1998/12/17 04:54:06 78 38 355 391 522 7.2*1 2.0e+12 1.3e+27 81 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event
    1998/12/17 08:30:05 Halo 360 302 401 721 19.5*1 1.3e+14*2 5.7e+28*2 229 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1998/12/17 09:54:07 67 30 252 133 0 -17.8*1 1.7e+13 5.4e+27 70 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event
    1998/12/17 12:54:07 138 92 191 221 267 2.0*1 2.2e+14 4.0e+28 111 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event
    1998/12/17 15:30:05 235 42 221 360 980 39.1*1 1.6e+14 4.0e+28 232 C2 C3 195 SXT PHTX DST Java Movie Only C2
    1998/12/17 18:30:05 263 111 434 479 535 5.7 5.4e+15 5.1e+30 260 C2 C3 195 SXT PHTX DST Java Movie
    1998/12/17 21:54:05 61 38 739 835 1066 30.1*1 2.0e+14*2 5.5e+29*2 57 C2 C3 195 SXT PHTX DST Java Movie
    1998/12/18 18:09:47 Halo (OA) 360 1749 1789 1776 17.2*1 8.8e+15*2 1.4e+32*2 36 C2 C3 195 SXT PHTX DST Java Movie Only 3 points; Only C3
    1998/12/18 21:54:05 72 29 598 822 766 19.7*1 9.1e+13 1.6e+29 82 C2 C3 195 SXT PHTX DST Java Movie
    1998/12/19 08:30:06 31 7 364 483 738 20.8 ---- ---- 34 C2 C3 195 SXT PHTX DST Java Movie
    1998/12/19 09:30:14 251 16 247 237 143 -1.9*1 ---- ---- 249 C2 C3 195 SXT PHTX DST Java Movie
    1998/12/19 12:30:05 188 41 155 353 430 7.7 8.0e+14 9.7e+28 190 C2 C3 195 SXT PHTX DST Java Movie
    1998/12/19 15:30:05 62 7 259 265 307 1.3*1 ---- ---- 59 C2 C3 195 SXT PHTX DST Java Movie
    1998/12/19 17:30:05 213 36 897 673 819 -25.7 1.1e+15 4.6e+30 215 C2 C3 195 SXT PHTX DST Java Movie
    1998/12/19 20:30:05 63 53 134 103 0 -18.0*1 1.5e+15*2 1.3e+29*2 62 C2 C3 195 SXT PHTX DST Java Movie Only 3 points; Only C2
    1998/12/19 20:54:05 44 29 295 318 436 4.9 1.8e+15 7.8e+29 45 C2 C3 195 SXT PHTX DST Java Movie UVCS
    1998/12/20 05:54:05 277 62 156 191 447 7.6*1 4.5e+14 5.4e+28 269 C2 C3 195 SXT PHTX DST Java Movie Only C2
    1998/12/20 10:30:06 62 54 235 299 407 6.8 3.5e+14 9.5e+28 49 C2 C3 195 SXT PHTX DST Java Movie Only C3
    1998/12/20 12:30:19 121 42 363 184 0 -87.0*1 2.2e+14*2 1.4e+29*2 99 C2 C3 195 SXT PHTX DST Java Movie Only 3 points
    1998/12/20 17:30:21 272 22 752 625 0 -55.8*1 1.6e+14*2 4.5e+29*2 295 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1998/12/20 17:54:05 171 14 184 209 396 5.5*1 ---- ---- 172 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only C2

    *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).