• 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
    2009/04/01 02:30:03 11 6 351 279 0 -41.5*1 ---- ---- 12 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2009/04/01 05:30:03 282 47 147 175 361 4.8*1 3.9e+13 4.2e+27 277 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2
    2009/04/01 10:06:03 10 11 277 253 0 -7.1*1 ---- ---- 13 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2
    2009/04/01 12:30:03 11 10 405 360 0 -25.3*1 ---- ---- 10 C2 C3 195 PHTX DST Java Movie Poor Event; Only 3 points; Only C2
    2009/04/02 03:30:03 276 51 144 156 185 0.7*1 3.2e+14 3.3e+28 272 C2 C3 PHTX DST Java Movie Very Poor Event
    2009/04/02 07:31:37 6 5 323 331 536 7.8*1 ---- ---- 7 C2 C3 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2009/04/03 07:31:39 50 15 435 253 0 -88.1*1 ---- ---- 56 C2 C3 195 PHTX DST Java Movie Poor Event
    2009/04/03 12:54:03 107 11 176 183 202 0.6*1 ---- ---- 105 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2009/04/04 03:54:06 169 7 383 --- --- --- ---- ---- 168 C2 C3 195 PHTX DST Java Movie only two points; Very Poor Event; Only 2 points; Only C2
    2009/04/04 23:06:46 6 4 293 370 1147 53.8*1 ---- ---- 7 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2009/04/05 10:34:02 278 58 196 237 315 3.1*1 4.4e+14 8.4e+28 273 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2009/04/06 13:54:03 212 11 252 202 0 -48.7*1 ---- ---- 219 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2009/04/06 18:06:03 183 9 157 86 0 -17.3*1 ---- ---- 181 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2009/04/07 21:30:06 275 44 248 327 309 2.7*1 1.7e+15 5.3e+29 272 C2 C3 195 PHTX DST Java Movie Poor Event
    2009/04/09 01:54:03 79 19 199 246 235 1.3*1 ---- ---- 79 C2 C3 195 PHTX DST Java Movie Poor Event
    2009/04/09 09:54:03 169 4 375 387 621 10.9*1 ---- ---- 167 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2009/04/09 09:54:03 266 12 235 272 280 1.9*1 ---- ---- 264 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2009/04/09 10:30:16 335 11 299 394 949 37.8*1 ---- ---- 330 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2
    2009/04/10 16:30:03 273 49 281 282 284 0.1*1 7.2e+14 2.8e+29 277 C2 C3 195 PHTX DST Java Movie
    2009/04/11 00:30:03 314 9 197 317 1046 46.7*1 ---- ---- 310 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2009/04/11 06:06:03 276 12 245 339 458 8.9*1 ---- ---- 276 C2 C3 195 PHTX DST Java Movie Only C3
    2009/04/11 06:30:03 84 36 157 181 193 0.8*1 6.2e+14 7.7e+28 81 C2 C3 195 PHTX DST Java Movie Poor Event
    2009/04/11 06:54:03 311 7 239 182 0 -26.1*1 ---- ---- 308 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2009/04/11 17:30:03 268 19 146 154 195 0.8*1 ---- ---- 272 C2 C3 195 PHTX DST Java Movie Poor Event
    2009/04/12 02:30:03 338 4 123 166 577 13.7*1 ---- ---- 334 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2009/04/12 14:30:03 178 6 548 843 2485 249.2*1 ---- ---- 179 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2009/04/13 00:30:03 291 6 263 404 1064 47.0*1 ---- ---- 286 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2009/04/13 10:30:17 294 6 298 531 1738 126.1*1 ---- ---- 288 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2009/04/13 15:54:04 198 4 421 402 0 -18.5*1 ---- ---- 205 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2009/04/14 19:50:03 88 56 159 150 0 -1.3*1 1.7e+14 2.1e+28 78 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2
    2009/04/15 00:50:03 248 9 184 248 318 3.9*1 ---- ---- 249 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2009/04/15 03:26:06 91 24 171 193 419 6.7*1 ---- ---- 86 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2009/04/16 03:26:07 256 10 193 239 802 25.3*1 ---- ---- 256 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2009/04/16 08:26:05 5 9 424 654 2455 257.9*1 ---- ---- 6 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2009/04/16 23:26:03 182 8 506 828 2476 259.8*1 ---- ---- 182 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2009/04/17 07:50:03 0 6 239 375 1331 72.9*1 ---- ---- 2 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2009/04/17 09:26:07 79 57 258 517 444 8.1 3.2e+15 1.1e+30 75 C2 C3 195 PHTX DST Java Movie
    2009/04/19 03:26:09 85 35 139 128 27 -0.9*1 2.1e+14 2.0e+28 86 C2 C3 195 PHTX DST Java Movie Poor Event
    2009/04/19 15:26:06 193 6 372 344 0 -23.1*1 ---- ---- 195 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2009/04/19 16:26:03 194 7 395 579 1919 149.0*1 ---- ---- 196 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2009/04/19 16:26:03 277 32 87 120 152 0.8*1 7.2e+14 2.7e+28 276 C2 C3 195 PHTX DST Java Movie Very Poor Event
    2009/04/19 16:50:03 86 33 120 121 138 0.2*1 2.7e+13 2.0e+27 87 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2009/04/20 10:06:03 275 32 274 287 287 0.6*1 2.9e+14 1.1e+29 277 C2 C3 195 PHTX DST Java Movie
    2009/04/21 01:27:13 62 7 290 246 0 -19.4*1 ---- ---- 65 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2009/04/21 19:50:03 95 31 173 201 277 2.4*1 8.4e+13 1.3e+28 89 C2 C3 195 PHTX DST Java Movie Poor Event
    2009/04/22 00:06:03 57 9 295 433 971 38.3*1 ---- ---- 65 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2
    2009/04/22 00:50:03 168 7 229 260 655 16.5*1 ---- ---- 169 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2009/04/22 03:26:06 358 7 368 389 713 16.9*1 ---- ---- 356 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2009/04/22 14:26:03 94 56 144 347 302 4.1*1 5.8e+15 6.0e+29 94 C2 C3 195 PHTX DST Java Movie
    2009/04/23 07:26:03 74 40 411 361 383 -2.5 1.6e+15 1.3e+30 68 C2 C3 195 PHTX DST Java Movie
    2009/04/24 00:50:03 78 7 268 327 397 4.7*1 ---- ---- 76 C2 C3 195 PHTX DST Java Movie
    2009/04/27 15:26:06 63 9 210 215 318 2.4*1 ---- ---- 67 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2009/04/28 04:26:03 66 11 202 119 0 -32.8*1 ---- ---- 74 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2009/04/28 08:54:03 272 48 31 83 258 2.7*1 4.0e+14 1.9e+27 274 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2
    2009/04/28 19:50:03 287 20 151 234 984 39.8*1 2.3e+13*2 2.6e+27*2 284 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2009/04/29 02:50:03 281 44 239 267 470 7.4*1 9.0e+13 2.6e+28 287 C2 C3 195 PHTX DST Java Movie Poor Event; Only C2
    2009/04/29 23:26:03 278 17 214 237 437 6.5*1 ---- ---- 281 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only C2
    2009/04/30 00:27:13 356 7 327 387 1116 50.5*1 ---- ---- 356 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2009/04/30 01:50:05 357 6 367 310 0 -53.2*1 ---- ---- 357 C2 C3 195 PHTX DST Java Movie Very Poor Event; Only 3 points; Only C2
    2009/04/30 20:26:04 310 10 247 196 0 -29.5*1 ---- ---- 307 C2 C3 195 PHTX DST Java Movie Very 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).