• 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
    1997/07/01 17:30:05 255 23 544 344 0 -29.1 6.8e+13 1.0e+29 261 C2 C3 195 SXT PHTX DST Java Movie
    1997/07/01 19:30:05 352 7 93 --- --- --- ---- ---- 349 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only 2 points; Only C2
    1997/07/02 06:03:16 101 19 179 197 225 1.2*1 ---- ---- 97 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event
    1997/07/02 06:03:16 245 24 131 171 221 1.8*1 1.7e+14 1.5e+28 248 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event
    1997/07/02 08:46:08 351 9 262 --- --- --- ---- ---- 352 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only 2 points; Only C2
    1997/07/02 16:10:25 77 69 150 128 0 -1.6*1 2.1e+15 2.4e+29 72 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1997/07/02 18:41:05 279 44 124 91 0 -6.2*1 1.0e+14*2 7.8e+27*2 271 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only C2
    1997/07/03 10:45:05 251 21 139 236 289 4.0*1 1.9e+14 1.9e+28 251 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event
    1997/07/04 01:30:05 253 13 211 170 123 -2.3*1 ---- ---- 255 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1997/07/04 03:22:38 281 36 154 169 288 2.6*1 2.1e+14 2.5e+28 279 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only C2
    1997/07/04 16:04:06 23 11 563 --- --- --- ---- ---- 28 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only 2 points; Only C2
    1997/07/05 10:13:48 294 22 426 422 414 -0.6*1 8.0e+13 7.2e+28 282 C2 C3 195 SXT PHTX DST Java Movie
    1997/07/05 14:28:05 5 9 359 --- --- --- ---- ---- 8 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only 2 points; Only C2
    1997/07/05 15:00:05 289 8 298 331 433 5.0*1 ---- ---- 283 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1997/07/05 16:35:08 285 19 134 85 0 -5.1*1 ---- ---- 280 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1997/07/05 19:24:11 0 6 257 --- --- --- ---- ---- 360 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only 2 points; Only C2
    1997/07/05 22:23:49 265 41 302 280 274 -1.3 7.4e+14 3.4e+29 268 C2 C3 195 SXT PHTX DST Java Movie
    1997/07/06 01:30:06 330 7 232 --- --- --- ---- ---- 327 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only 2 points; Only C2
    1997/07/06 04:30:15 102 39 154 167 215 1.2*1 1.5e+14 1.8e+28 96 C2 C3 195 SXT PHTX DST Java Movie
    1997/07/06 13:30:06 286 51 153 138 94 -0.8*1 1.3e+15 1.5e+29 285 C2 C3 195 SXT PHTX DST Java Movie
    1997/07/08 16:09:36 279 54 159 140 0 -1.4*1 3.5e+14 4.4e+28 269 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1997/07/08 18:20:05 98 43 159 63 0 -8.8*1 ---- ---- 102 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event
    1997/07/09 01:30:05 43 14 216 361 981 40.3*1 ---- ---- 49 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    1997/07/10 15:21:05 5 6 336 --- --- --- ---- ---- 7 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only 2 points; Only C2
    1997/07/10 17:26:03 256 30 91 76 0 -1.8*1 4.5e+13 1.9e+27 263 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1997/07/10 17:26:03 91 52 209 328 898 33.8*1 1.9e+13*2 4.2e+27*2 89 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2006/01/06; Poor Event; Only 3 points; Only C2
    1997/07/11 01:30:06 77 72 216 234 279 1.7*1 1.2e+14 2.8e+28 74 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1997/07/11 08:28:06 96 37 388 436 516 6.6*1 3.3e+14*2 2.5e+29*2 97 C2 C3 195 SXT PHTX DST Java Movie
    1997/07/11 12:30:07 183 6 130 --- --- --- ---- ---- 188 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only 2 points; Only C2
    1997/07/11 15:11:06 186 9 158 --- --- --- ---- ---- 186 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only 2 points; Only C2
    1997/07/11 22:59:17 186 12 377 499 1403 80.9*1 ---- ---- 189 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only 3 points; Only C2
    1997/07/12 10:21:28 276 47 180 112 0 -11.8*1 1.5e+14*2 2.5e+28*2 272 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only C3
    1997/07/13 01:02:54 276 33 347 326 113 -5.2*1 3.2e+14 1.9e+29 272 C2 C3 195 SXT PHTX DST Java Movie
    1997/07/13 06:25:10 66 11 514 605 1252 57.3*1 ---- ---- 75 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    1997/07/13 09:48:06 267 23 214 285 370 4.8*1 1.9e+14 4.4e+28 266 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1997/07/14 03:17:20 282 10 220 --- --- --- ---- ---- 276 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only 2 points; Only C2
    1997/07/14 08:51:20 77 82 258 238 237 -0.8 3.1e+15 1.0e+30 74 C2 C3 195 SXT PHTX DST Java Movie
    1997/07/14 10:32:49 175 10 360 543 1700 124.2*1 ---- ---- 175 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    1997/07/15 03:34:11 84 42 258 138 0 -13.3*1 3.8e+13 1.3e+28 87 C2 C3 195 SXT PHTX DST Java Movie
    1997/07/15 10:16:38 321 15 344 83 0 -176.4*1 ---- ---- 309 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    1997/07/15 14:52:19 86 27 261 270 276 0.6*1 3.1e+13 1.0e+28 85 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1997/07/16 13:30:05 273 47 201 264 482 9.6*1 2.1e+14*2 4.2e+28*2 280 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only 3 points
    1997/07/16 16:31:44 69 105 100 98 59 -0.3*1 4.5e+14 2.2e+28 75 C2 C3 195 SXT PHTX DST Java Movie Only C2
    1997/07/16 22:30:05 276 42 199 338 646 17.3*1 ---- ---- 267 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event
    1997/07/17 03:30:05 272 18 71 105 287 3.8*1 ---- ---- 274 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1997/07/17 22:30:05 104 31 112 141 203 1.6*1 ---- ---- 100 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event
    1997/07/18 05:30:05 271 50 145 125 0 -1.9*1 1.1e+14 1.2e+28 269 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1997/07/19 04:12:37 98 20 204 180 132 -1.7*1 6.2e+11 1.3e+26 103 C2 C3 SXT PHTX DST Java Movie Very Poor Event; Only C3
    1997/07/19 22:41:53 284 66 175 152 0 -13.7*1 2.0e+14*2 3.1e+28*2 279 C2 C3 SXT PHTX DST Java Movie Poor Event; Only 3 points; Only C2
    1997/07/20 02:44:13 97 34 335 358 358 1.5*1 3.2e+14 1.8e+29 99 C2 C3 SXT PHTX DST Java Movie Very Poor Event; Only C3
    1997/07/20 21:52:41 87 31 212 246 250 1.6*1 2.4e+14 5.4e+28 83 C2 C3 SXT PHTX DST Java Movie Very Poor Event; Only C3
    1997/07/20 23:41:55 264 17 107 148 216 2.2 ---- ---- 265 C2 C3 SXT PHTX DST Java Movie Only C3
    1997/07/22 07:12:26 264 64 496 892 779 25.9 1.2e+15 1.5e+30 266 C2 C3 SXT PHTX DST Java Movie
    1997/07/23 12:20:42 296 28 281 305 359 2.8*1 9.6e+13 3.8e+28 298 C2 C3 SXT PHTX DST Java Movie
    1997/07/23 17:19:59 74 29 283 288 319 1.0*1 1.3e+14*2 5.2e+28*2 74 C2 C3 SXT PHTX DST Java Movie Poor Event; Only 3 points; Only C2
    1997/07/23 22:02:33 91 25 225 138 0 -7.6*1 9.3e+13 2.4e+28 94 C2 C3 SXT PHTX DST Java Movie Very Poor Event
    1997/07/24 04:30:06 291 56 290 290 290 -0.0*1 2.4e+15*2 1.0e+30*2 281 C2 C3 SXT PHTX DST Java Movie
    1997/07/24 12:30:05 90 65 144 110 0 -4.6*1 6.1e+14*2 6.4e+28*2 86 C2 C3 SXT PHTX DST Java Movie
    1997/07/24 14:00:06 270 36 187 159 0 -10.7*1 8.9e+13*2 1.6e+28*2 267 C2 C3 SXT PHTX DST Java Movie Only C2
    1997/07/24 19:20:55 269 54 151 155 163 0.2*1 3.4e+14 3.9e+28 269 C2 C3 SXT PHTX DST Java Movie Poor Event
    1997/07/25 07:31:20 273 45 404 627 746 23.2 2.1e+15 1.7e+30 277 C2 C3 195 SXT PHTX DST Java Movie
    1997/07/25 21:01:15 267 84 611 538 585 -5.6 5.3e+15 1.0e+31 290 C2 C3 195 SXT PHTX DST Java Movie UVCS
    1997/07/26 00:45:05 89 11 289 393 618 15.7*1 ---- ---- 91 C2 C3 SXT PHTX DST Java Movie Very Poor Event
    1997/07/29 03:00:07 273 30 89 61 0 -2.8*1 5.0e+14 2.0e+28 271 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only C2
    1997/07/29 22:43:47 92 43 63 81 179 1.3*1 1.6e+14 3.2e+27 91 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only C2
    1997/07/29 23:28:05 220 13 159 168 372 5.0*1 ---- ---- 226 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    1997/07/30 04:45:47 Halo (S) 360 104 119 162 0.8 8.2e+14*2 4.5e+28*2 269 C2 C3 195 SXT PHTX DST Java Movie
    1997/07/30 19:32:05 95 65 530 584 576 4.9 1.4e+15 2.0e+30 98 C2 C3 195 SXT PHTX DST Java Movie
    1997/07/31 10:57:05 248 15 169 189 349 4.2*1 ---- ---- 253 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only C2
    1997/07/31 14:57:05 14 9 298 --- --- --- ---- ---- 20 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event; Only 2 points; 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).