• 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
    1997/01/01 03:30:05 14 11 307 --- --- --- ---- ---- 17 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2024/05/01.; Very Poor Event; Only 2 points; Only C2
    1997/01/01 08:30:05 275 26 173 269 422 8.2*1 ---- ---- 277 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2024/05/01.; Poor Event
    1997/01/01 11:30:05 82 26 260 395 745 23.0*1 ---- ---- 94 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2024/05/01.; Very Poor Event
    1997/01/01 15:30:05 268 13 101 121 184 1.2*1 ---- ---- 273 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2024/05/01.; Very Poor Event
    1997/01/02 01:30:05 319 16 170 --- --- --- ---- ---- 317 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2024/05/01.; Very Poor Event; Only 2 points; Only C2
    1997/01/02 01:30:05 272 20 212 311 317 4.0*1 ---- ---- 273 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2024/05/01.; Poor Event
    1997/01/02 13:30:05 318 15 198 --- --- --- ---- ---- 310 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2024/05/01.; Very Poor Event; Only 2 points; Only C2
    1997/01/02 19:00:08 92 55 208 229 295 2.4*1 1.9e+14 4.1e+28 103 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1997/01/03 01:30:05 103 23 193 124 0 -4.4*1 ---- ---- 105 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2024/05/01.; Poor Event
    1997/01/03 02:30:05 82 13 111 181 333 5.0*1 ---- ---- 81 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2024/05/01.; Poor Event
    1997/01/03 04:30:05 233 20 296 --- --- --- ---- ---- 241 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2024/05/01.; Very Poor Event; Only 2 points; Only C2
    1997/01/03 10:30:05 268 19 68 74 149 0.8*1 ---- ---- 274 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only C2
    1997/01/03 13:30:05 84 16 311 368 403 4.8*1 ---- ---- 85 C2 C3 195 SXT PHTX DST Java Movie Only 3 points
    1997/01/04 00:05:05 98 39 138 74 0 -11.8*1 ---- ---- 104 C2 C3 SXT PHTX DST Java Movie Newly inserted on 2024/05/01.; Very Poor Event; Only C2
    1997/01/04 04:30:05 327 5 229 --- --- --- ---- ---- 317 C2 C3 SXT PHTX DST Java Movie Newly inserted on 2024/05/01.; Very Poor Event; Only 2 points; Only C2
    1997/01/04 05:30:05 104 14 234 280 326 3.6*1 ---- ---- 107 C2 C3 SXT PHTX DST Java Movie Newly inserted on 2024/05/01.; Very Poor Event; Only C3
    1997/01/04 17:10:45 94 54 47 0 0 -2.9*1 2.4e+14 2.7e+27 100 C2 C3 SXT PHTX DST Java Movie Newly inserted on 2024/05/01.; Very Poor Event; Only C2
    1997/01/05 04:30:05 173 8 138 --- --- --- ---- ---- 172 C2 C3 SXT PHTX DST Java Movie Newly inserted on 2024/05/01.; Very Poor Event; Only 2 points; Only C2
    1997/01/05 05:50:05 89 52 212 191 0 -6.9*1 2.2e+14*2 5.0e+28*2 86 C2 C3 SXT PHTX DST Java Movie
    1997/01/05 09:00:05 155 11 473 --- --- --- ---- ---- 150 C2 C3 SXT PHTX DST Java Movie Newly inserted on 2024/05/01.; Very Poor Event; Only 2 points; Only C2
    1997/01/05 09:47:12 271 22 216 382 566 17.1*1 ---- ---- 268 C2 C3 SXT PHTX DST Java Movie Newly inserted on 2024/05/01.; Very Poor Event; Only C3
    1997/01/06 07:45:07 77 27 148 233 799 26.9*1 6.0e+13*2 6.6e+27*2 84 C2 C3 SXT PHTX DST Java Movie Newly inserted on 2024/05/01.; Very Poor Event; Only C2
    1997/01/06 15:10:42 Halo (S) 360 136 224 319 4.1 5.8e+14*2 5.4e+28*2 180 C2 C3 SXT PHTX DST Java Movie
    1997/01/07 17:45:08 84 52 156 260 423 9.2*1 1.4e+15 1.7e+29 78 C2 C3 SXT PHTX DST Java Movie Poor Event; Only C3
    1997/01/07 18:45:05 264 29 169 379 619 18.5*1 ---- ---- 265 C2 C3 SXT PHTX DST Java Movie Newly inserted on 2024/05/01.; Very Poor Event
    1997/01/08 00:35:05 346 9 367 --- --- --- ---- ---- 344 C2 C3 SXT PHTX DST Java Movie Newly inserted on 2024/05/01.; Very Poor Event; Only 2 points; Only C2
    1997/01/09 04:30:05 295 8 311 --- --- --- ---- ---- 285 C2 C3 PHTX DST Java Movie Newly inserted on 2024/05/01.; Very Poor Event; Only 2 points; Only C2
    1997/01/09 12:30:06 187 6 193 --- --- --- ---- ---- 189 C2 C3 PHTX DST Java Movie Newly inserted on 2024/05/01.; Very Poor Event; Only 2 points; Only C2
    1997/01/09 16:55:05 307 8 224 243 424 5.7*1 ---- ---- 297 C2 C3 PHTX DST Java Movie Newly inserted on 2024/05/01.; Poor Event; Only 3 points; Only C2
    1997/01/09 17:45:08 304 13 194 150 0 -9.9*1 ---- ---- 298 C2 C3 PHTX DST Java Movie Newly inserted on 2024/05/01.; Poor Event; Only 3 points; Only C2
    1997/01/09 17:45:08 62 20 273 322 341 3.5*1 ---- ---- 73 C2 C3 PHTX DST Java Movie Newly inserted on 2024/05/01.; Poor Event
    1997/01/09 22:10:05 76 15 276 278 277 0.1*1 ---- ---- 85 C2 C3 PHTX DST Java Movie Newly inserted on 2024/05/01.; Poor Event
    1997/01/10 10:04:21 85 57 325 297 297 -1.5*1 8.5e+14 4.5e+29 93 C2 C3 195 PHTX DST Java Movie
    1997/01/10 13:21:07 107 42 198 370 509 11.1*1 5.8e+13 1.1e+28 107 C2 C3 195 PHTX DST Java Movie Newly inserted on 2024/05/01.; Poor Event
    1997/01/10 20:13:15 254 26 204 337 327 4.7*1 5.8e+13 1.2e+28 260 C2 C3 195 PHTX DST Java Movie Newly inserted on 2024/05/01.; Poor Event
    1997/01/11 06:30:09 252 24 73 54 0 -2.0*1 1.0e+14 2.8e+27 259 C2 C3 195 PHTX DST Java Movie Newly inserted on 2024/05/01.; Very Poor Event; Only C2
    1997/01/11 09:30:07 292 10 190 244 607 15.0*1 ---- ---- 287 C2 C3 195 PHTX DST Java Movie Newly inserted on 2024/05/01.; Very Poor Event; Only 3 points; Only C2
    1997/01/11 21:32:05 258 28 206 273 273 2.3*1 ---- ---- 258 C2 C3 195 PHTX DST Java Movie Newly inserted on 2024/05/01.; Poor Event
    1997/01/12 03:30:05 210 14 193 --- --- --- ---- ---- 216 C2 C3 195 PHTX DST Java Movie Newly inserted on 2024/05/01.; Very Poor Event; Only 2 points; Only C2
    1997/01/12 06:30:08 100 38 149 201 309 4.1*1 ---- ---- 96 C2 C3 195 PHTX DST Java Movie Newly inserted on 2024/05/01.; Poor Event
    1997/01/12 12:30:06 71 40 123 130 211 1.3*1 3.3e+14*2 2.5e+28*2 69 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2
    1997/01/12 23:31:05 65 51 176 169 122 -1.0*1 ---- ---- 71 C2 C3 195 PHTX DST Java Movie Poor Event
    1997/01/13 18:30:06 112 12 177 256 589 14.4*1 ---- ---- 102 C2 C3 195 PHTX DST Java Movie Newly inserted on 2024/05/01.; Poor Event
    1997/01/13 20:45:13 257 17 309 --- --- --- ---- ---- 257 C2 C3 195 PHTX DST Java Movie Newly inserted on 2024/05/01.; Very Poor Event; Only 2 points; Only C3
    1997/01/15 18:55:42 85 45 175 180 195 0.4*1 ---- ---- 87 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2024/05/01.; Poor Event
    1997/01/16 03:11:38 86 17 68 121 208 1.9*1 ---- ---- 85 C2 C3 195 SXT PHTX DST Java Movie Very Poor Event
    1997/01/16 16:50:28 256 26 218 304 572 13.9*1 ---- ---- 262 C2 C3 195 SXT PHTX DST Java Movie
    1997/01/17 22:24:13 80 24 118 120 129 0.2*1 5.4e+13 3.8e+27 80 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2024/05/01.; Poor Event; Only C3
    1997/01/18 02:30:05 244 116 254 339 342 3.7 2.1e+15 6.8e+29 248 C2 C3 195 PHTX DST Java Movie
    1997/01/19 02:31:22 258 56 162 223 637 16.7*1 3.4e+12*2 4.4e+26*2 269 C2 C3 195 PHTX DST Java Movie Newly inserted on 2024/05/01.; Poor Event; Only 3 points; Only C2
    1997/01/19 16:30:05 286 44 33 56 137 0.8*1 ---- ---- 286 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2
    1997/01/19 22:30:05 246 11 144 175 381 6.4*1 ---- ---- 256 C2 C3 195 PHTX DST Java Movie Newly inserted on 2024/05/01.; Very Poor Event
    1997/01/20 09:31:13 281 72 175 115 0 -3.3 1.4e+15 2.2e+29 285 C2 C3 195 PHTX DST Java Movie
    1997/01/21 06:30:07 275 32 353 805 683 24.1*1 ---- ---- 281 C2 C3 195 PHTX DST Java Movie
    1997/01/21 19:41:25 27 14 258 --- --- --- ---- ---- 32 C2 C3 195 PHTX DST Java Movie Newly inserted on 2024/05/01.; Very Poor Event; Only 2 points; Only C2
    1997/01/21 19:41:25 273 25 258 399 565 13.7*1 ---- ---- 271 C2 C3 195 PHTX DST Java Movie Newly inserted on 2024/05/01.; Very Poor Event
    1997/01/22 02:45:06 275 22 425 416 421 -0.6*1 ---- ---- 275 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2024/05/01.; Very Poor Event; Only C3
    1997/01/22 13:30:05 121 94 224 332 408 6.2 4.3e+14 1.1e+29 126 C2 C3 195 SXT PHTX DST Java Movie
    1997/01/23 03:30:05 268 30 224 312 333 3.9*1 ---- ---- 268 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2024/05/01.; Poor Event
    1997/01/23 07:30:05 107 19 152 162 188 0.6*1 ---- ---- 112 C2 C3 195 SXT PHTX DST Java Movie
    1997/01/23 11:31:05 327 16 258 --- --- --- ---- ---- 318 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2024/05/01.; Very Poor Event; Only 2 points; Only C2
    1997/01/23 15:20:05 329 14 345 --- --- --- ---- ---- 320 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2024/05/01.; Very Poor Event; Only 2 points; Only C2
    1997/01/24 04:30:05 271 33 141 166 191 1.0*1 8.8e+13 8.7e+27 265 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2024/05/01.; Poor Event
    1997/01/24 04:30:05 85 42 113 90 0 -2.1*1 6.0e+14 3.8e+28 88 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1997/01/24 17:35:05 116 15 342 348 348 0.4*1 ---- ---- 114 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2024/05/01.; Very Poor Event
    1997/01/24 18:30:08 267 38 147 148 148 0.0*1 ---- ---- 268 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2024/05/01.; Poor Event
    1997/01/25 08:30:05 110 24 209 299 331 4.1*1 ---- ---- 119 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2024/05/01.; Poor Event
    1997/01/26 03:30:05 256 22 178 170 158 -0.4*1 1.0e+14 1.6e+28 258 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2024/05/01.; Poor Event
    1997/01/26 08:30:05 113 17 151 183 249 2.3*1 ---- ---- 114 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2024/05/01.; Very Poor Event
    1997/01/26 18:58:15 112 14 263 408 433 8.4*1 ---- ---- 113 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2024/05/01.; Poor Event
    1997/01/26 22:30:05 109 22 108 204 223 2.1*1 2.7e+14 1.6e+28 110 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2024/05/01.; Poor Event
    1997/01/27 07:30:06 98 37 170 236 552 12.1*1 1.4e+14*2 2.0e+28*2 92 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2024/05/01.; Very Poor Event; Only C2
    1997/01/27 10:30:05 256 14 209 257 281 2.5*1 ---- ---- 260 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2024/05/01.; Poor Event
    1997/01/27 19:30:05 102 42 122 97 0 -6.9*1 ---- ---- 103 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2024/05/01.; Very Poor Event; Only 3 points; Only C2
    1997/01/28 07:30:06 103 39 172 273 666 18.5*1 ---- ---- 103 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2024/05/01.; Very Poor Event; Only C2
    1997/01/28 13:30:05 268 18 131 150 363 5.1*1 ---- ---- 270 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2024/05/01.; Very Poor Event; Only C2
    1997/01/28 19:27:08 267 38 189 276 288 3.1*1 1.5e+13 2.7e+27 269 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2024/05/01.; Poor Event
    1997/01/29 00:30:05 97 39 106 137 161 0.9*1 4.7e+13 2.6e+27 96 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2024/05/01.; Very Poor Event
    1997/01/29 11:21:08 100 41 174 102 0 -19.0*1 ---- ---- 104 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2024/05/01.; Very Poor Event; Only C2
    1997/01/29 22:30:05 101 53 153 179 209 1.2*1 ---- ---- 95 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2024/05/01.; Poor Event
    1997/01/30 08:30:05 359 11 106 --- --- --- ---- ---- 360 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2024/05/01.; Very Poor Event; Only 2 points; Only C2
    1997/01/31 14:30:05 13 9 354 --- --- --- ---- ---- 17 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2024/05/01.; Very Poor Event; Only 2 points; Only C2
    1997/01/31 17:30:09 94 56 74 72 53 -0.1*1 2.9e+14 8.1e+27 91 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2024/05/01.; Very Poor Event
    1997/01/31 23:30:05 14 9 240 --- --- --- ---- ---- 17 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2024/05/01.; 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).