• 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
    1997/10/01 01:29:05 263 67 502 479 487 -1.7 2.7e+15 3.4e+30 249 C2 C3 195 SXT PHTX DST Java Movie
    1997/10/01 09:26:05 71 20 462 526 591 7.9*1 9.6e+13 1.0e+29 78 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1997/10/01 14:54:08 170 8 270 346 940 35.7*1 ---- ---- 166 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only 3 points; Only C2
    1997/10/01 16:27:05 91 20 187 --- --- --- 1.2e+14*2 2.2e+28*2 93 C2 C3 195 SXT PHTX DST Java Movie Only 2 points; Only C2
    1997/10/02 00:44:06 176 11 287 353 835 26.8*1 ---- ---- 173 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    1997/10/02 02:04:05 81 40 178 97 0 -55.7*1 1.9e+13*2 3.0e+27*2 74 C2 C3 195 SXT PHTX DST Java Movie Only 3 points; Only C2
    1997/10/02 10:53:06 86 30 186 128 0 -9.7*1 1.8e+13 3.1e+27 82 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only C2
    1997/10/02 14:05:05 308 5 227 18 0 -53.9*1 ---- ---- 300 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only C2
    1997/10/03 06:10:12 93 60 225 208 0 -4.0*1 4.9e+12 1.3e+27 77 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only C2
    1997/10/03 12:54:05 81 44 228 407 1049 46.2*1 1.3e+13 3.5e+27 78 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only C2
    1997/10/03 19:35:42 78 76 271 296 324 2.1*1 1.2e+15 4.4e+29 70 C2 C3 195 SXT PHTX DST Java Movie
    1997/10/05 06:44:05 330 13 229 315 918 34.6*1 ---- ---- 325 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    1997/10/05 15:02:06 145 135 111 134 244 2.2*1 7.9e+14*2 4.9e+28*2 124 C2 C3 195 SXT PHTX DST Java Movie Only C2; Partial Halo
    1997/10/06 07:55:24 65 44 392 480 1246 69.5*1 1.6e+14*2 1.3e+29*2 82 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only 3 points; Only C2
    1997/10/06 10:31:20 273 103 506 566 538 3.6 7.0e+15 8.9e+30 260 C2 C3 195 SXT PHTX DST Java Movie
    1997/10/06 11:58:07 68 57 166 223 469 8.7*1 3.5e+14 4.8e+28 68 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only C2
    1997/10/06 15:28:20 139 174 293 524 620 15.9 2.9e+15*2 1.2e+30*2 130 C2 C3 195 SXT PHTX DST Java Movie Partial Halo
    1997/10/07 05:31:07 283 55 40 69 212 1.9*1 1.2e+15 9.5e+27 286 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only C2
    1997/10/07 13:30:05 246 167 1271 1269 1270 -0.4*1 3.9e+15*2 3.2e+31*2 204 C2 C3 195 SXT PHTX DST Java Movie UVCS Only 3 points; Only C3; Partial Halo
    1997/10/07 17:28:22 282 89 305 248 0 -6.4*1 3.5e+14 1.6e+29 271 C2 C3 195 SXT PHTX DST Java Movie
    1997/10/08 06:10:46 4 6 277 438 1269 70.3*1 ---- ---- 4 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    1997/10/08 07:29:05 337 16 260 258 224 -0.8*1 ---- ---- 337 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    1997/10/09 04:40:05 200 12 221 --- --- --- ---- ---- 203 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only 2 points; Only C2
    1997/10/09 09:53:05 200 9 207 121 0 -48.8*1 ---- ---- 203 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    1997/10/09 12:52:05 97 80 247 277 456 6.7*1 7.6e+14*2 2.3e+29*2 86 C2 C3 195 SXT PHTX DST Java Movie
    1997/10/09 15:02:27 295 24 149 167 223 1.5*1 1.4e+14 1.6e+28 286 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1997/10/10 02:07:46 289 94 85 77 0 -1.4*1 3.5e+14 1.2e+28 297 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only C2
    1997/10/10 05:20:06 100 84 308 275 239 -2.5*1 6.6e+14 3.1e+29 90 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1997/10/10 18:32:00 86 52 114 171 533 12.4*1 7.7e+13 5.0e+27 88 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only C2
    1997/10/11 06:26:05 275 78 155 180 193 0.9*1 1.5e+14 1.8e+28 259 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1997/10/11 10:28:05 102 111 328 309 265 -2.1*1 3.9e+14 2.1e+29 92 C2 C3 195 SXT PHTX DST Java Movie
    1997/10/11 12:50:49 22 5 276 241 0 -13.9*1 ---- ---- 31 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    1997/10/12 04:20:06 99 46 178 230 277 3.0*1 1.2e+13 1.9e+27 103 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event
    1997/10/12 05:35:10 276 105 752 755 754 0.3 5.9e+15 1.7e+31 277 C2 C3 195 SXT PHTX DST Java Movie
    1997/10/12 06:26:05 258 62 779 746 764 -3.1 5.4e+15 1.6e+31 252 C2 C3 195 SXT PHTX DST Java Movie
    1997/10/12 07:29:05 87 51 114 78 0 -5.8*1 3.8e+11 2.4e+25 86 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event
    1997/10/13 11:51:36 265 94 323 364 356 2.0 3.0e+15 1.5e+30 263 C2 C3 195 SXT PHTX DST Java Movie
    1997/10/14 03:39:18 22 6 174 --- --- --- ---- ---- 30 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only 2 points; Only C2
    1997/10/14 11:11:05 306 10 272 283 386 3.5*1 ---- ---- 296 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    1997/10/15 06:26:05 278 47 168 185 334 4.2*1 7.2e+13*2 1.0e+28*2 273 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only 3 points
    1997/10/15 07:29:07 90 21 212 261 340 4.1*1 3.5e+13 7.8e+27 92 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1997/10/15 09:28:06 276 25 180 195 249 1.6*1 8.0e+13 1.3e+28 270 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1997/10/15 17:11:34 271 8 243 263 260 0.7*1 ---- ---- 270 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1997/10/15 21:44:08 68 10 306 554 1642 116.1*1 ---- ---- 76 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    1997/10/16 09:28:05 356 7 228 267 570 12.4*1 ---- ---- 357 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    1997/10/16 11:53:23 265 9 274 337 324 3.0*1 ---- ---- 269 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event
    1997/10/16 22:29:05 262 83 631 711 670 5.9 5.3e+15 1.0e+31 244 C2 C3 195 SXT PHTX DST Java Movie
    1997/10/17 13:54:07 87 41 265 264 251 -0.3*1 7.8e+13*2 2.7e+28*2 94 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    1997/10/17 14:26:05 176 8 260 115 0 -57.0*1 ---- ---- 175 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    1997/10/17 16:35:05 33 6 213 378 1178 58.4*1 ---- ---- 42 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    1997/10/17 20:26:05 100 17 215 323 327 4.6*1 ---- ---- 95 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event
    1997/10/18 06:40:05 87 71 96 87 0 -0.5*1 3.6e+14 1.6e+28 101 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event
    1997/10/19 04:42:29 92 63 373 364 358 -0.7 9.4e+14 6.5e+29 104 C2 C3 195 SXT PHTX DST Java Movie
    1997/10/19 06:02:22 58 130 150 348 385 6.3*1 6.9e+15*2 7.8e+29*2 91 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2007/10/09; Partial Halo
    1997/10/20 04:18:18 274 90 412 403 380 -1.3*1 2.4e+14 2.0e+29 280 C2 C3 195 SXT PHTX DST Java Movie UVCS Poor Event
    1997/10/20 16:36:11 288 118 127 244 293 3.6*1 4.5e+13 3.7e+27 294 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1997/10/21 01:27:03 108 91 570 582 578 0.9 2.5e+15 4.0e+30 117 C2 C3 195 SXT PHTX DST Java Movie
    1997/10/21 02:05:03 302 136 361 331 0 -12.9 4.2e+13*2 2.7e+28*2 300 C2 C3 195 SXT PHTX DST Java Movie Only C2; Partial Halo
    1997/10/21 06:07:45 353 11 452 441 245 -6.3*1 ---- ---- 348 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only C2
    1997/10/21 18:03:45 Halo (BA) 360 523 491 484 -2.9 9.5e+14*2 1.3e+30*2 90 C2 C3 195 SXT PHTX DST Java Movie
    1997/10/23 05:45:04 315 28 235 268 366 3.9*1 8.7e+13 2.4e+28 310 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1997/10/23 11:26:50 Halo (OA) 360 503 573 526 3.7 8.2e+15*2 1.0e+31*2 305 C2 C3 195 SXT PHTX DST Java Movie
    1997/10/23 15:14:41 109 70 299 474 438 7.3*1 3.6e+15 1.6e+30 103 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2006/02/09; Poor Event
    1997/10/23 20:44:21 88 45 540 565 551 1.4 ---- ---- 71 C2 C3 195 SXT PHTX DST Java Movie
    1997/10/24 21:48:30 82 50 310 529 529 11.7*1 5.3e+14 2.6e+29 84 C2 C3 195 SXT PHTX DST Java Movie
    1997/10/26 01:02:39 53 9 553 521 325 -10.2 ---- ---- 56 C2 C3 195 SXT PHTX DST Java Movie
    1997/10/26 03:33:59 283 40 173 115 0 -52.6*1 1.2e+14*2 1.8e+28*2 280 C2 C3 195 SXT PHTX DST Java Movie Only 3 points; Only C2
    1997/10/26 13:16:39 2 14 345 45 0 -181.5*1 ---- ---- 3 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only C2
    1997/10/26 16:50:13 93 28 202 150 0 -6.1*1 3.3e+14 6.8e+28 91 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2006/01/12
    1997/10/27 08:04:13 273 59 274 380 1539 96.7*1 1.4e+14*2 5.2e+28*2 272 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2006/01/12; Poor Event; Only 3 points; Only C2
    1997/10/27 11:52:00 292 33 334 364 417 3.9*1 3.9e+13*2 2.2e+28*2 290 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1997/10/28 00:18:05 276 63 157 172 439 7.2*1 1.9e+14*2 2.4e+28*2 278 C2 C3 195 SXT PHTX DST Java Movie Only 3 points; Only C2
    1997/10/28 08:02:05 96 42 106 20 0 -7.3*1 5.3e+14 3.0e+28 96 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only C2
    1997/10/29 01:29:07 58 27 605 568 564 -4.4 5.7e+14 1.0e+30 64 C2 C3 195 SXT PHTX DST Java Movie
    1997/10/29 05:28:16 98 48 274 332 358 3.9 1.2e+15 4.4e+29 96 C2 C3 195 SXT PHTX DST Java Movie
    1997/10/29 18:21:29 88 62 133 131 111 -0.3 8.9e+14 7.9e+28 88 C2 C3 195 SXT PHTX DST Java Movie
    1997/10/30 12:52:07 180 9 348 581 1696 119.2*1 ---- ---- 179 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only 3 points; Only C2
    1997/10/31 09:30:21 262 65 631 984 845 26.2 2.9e+15 5.7e+30 251 C2 C3 195 SXT 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).