• 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
    1997/06/01 07:30:05 84 75 342 359 376 1.6 1.8e+15 1.0e+30 91 C2 C3 195 SXT PHTX DST Java Movie
    1997/06/02 06:30:07 71 26 218 175 0 -6.3*1 1.2e+14*2 2.8e+28*2 84 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only C3
    1997/06/02 08:30:05 113 72 157 119 0 -3.1 ---- ---- 112 C2 C3 195 SXT PHTX DST Java Movie Only C3
    1997/06/03 21:01:05 89 42 258 297 516 9.4*1 1.5e+14*2 5.0e+28*2 90 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1997/06/05 22:55:05 275 62 320 304 273 -1.6*1 3.7e+14 1.9e+29 285 C2 C3 195 SXT PHTX DST Java Movie
    1997/06/06 23:30:05 74 14 241 339 699 22.3*1 ---- ---- 83 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only 3 points
    1997/06/07 23:31:15 90 44 220 162 0 -8.8*1 2.4e+14*2 5.8e+28*2 85 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1997/06/08 03:30:05 262 59 363 271 0 -11.8*1 5.7e+14 3.8e+29 278 C2 C3 195 SXT PHTX DST Java Movie
    1997/06/08 15:50:05 88 44 206 308 908 33.4*1 ---- ---- 90 C2 C3 195 SXT PHTX DST Java Movie Only 3 points; Only C2
    1997/06/09 20:30:06 285 16 509 436 292 -10.9 ---- ---- 277 C2 C3 195 SXT PHTX DST Java Movie
    1997/06/10 03:20:47 276 10 218 217 214 -0.1 ---- ---- 271 C2 C3 195 SXT PHTX DST Java Movie
    1997/06/10 07:30:05 287 8 142 --- --- --- ---- ---- 280 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only 2 points
    1997/06/10 17:49:03 94 31 340 --- --- --- ---- ---- 92 C2 C3 195 SXT PHTX DST Java Movie Poor Event; Only 2 points; Only C2
    1997/06/11 01:30:05 288 37 172 157 120 -0.9*1 3.0e+13 4.4e+27 287 C2 C3 195 SXT PHTX DST Java Movie
    1997/06/11 12:48:10 93 53 94 90 34 -0.4*1 3.8e+14*2 1.7e+28*2 93 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1997/06/13 03:30:08 270 38 222 138 0 -7.5*1 ---- ---- 269 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2006/04/03
    1997/06/13 12:50:05 111 143 57 100 181 1.4*1 ---- ---- 124 C2 C3 195 SXT PHTX DST Java Movie Newly inserted on 2006/03/31; Poor Event; Partial Halo
    1997/06/16 20:31:05 277 54 215 351 315 4.0 4.0e+15 9.2e+29 272 C2 C3 195 SXT PHTX DST Java Movie UVCS
    1997/06/17 04:30:05 69 79 185 213 312 3.2*1 2.4e+14 4.0e+28 63 C2 C3 195 SXT PHTX DST Java Movie
    1997/06/18 04:30:05 267 60 370 324 334 -3.1 6.6e+14 4.5e+29 266 C2 C3 195 SXT PHTX DST Java Movie
    1997/06/18 23:31:05 79 129 141 183 227 1.7 6.0e+15*2 5.9e+29*2 80 C2 C3 195 SXT PHTX DST Java Movie Partial Halo
    1997/06/20 07:30:06 86 52 334 327 292 -1.4*1 3.0e+14*2 1.7e+29*2 96 C2 C3 195 SXT PHTX DST Java Movie
    1997/06/20 10:29:05 90 59 422 501 590 10.0 ---- ---- 94 C2 C3 195 SXT PHTX DST Java Movie
    1997/06/21 13:30:05 264 38 197 262 737 23.1*1 2.6e+14*2 5.1e+28*2 266 C2 C3 195 SXT PHTX DST Java Movie Only C2
    1997/06/22 08:28:05 87 71 96 96 95 -0.0*1 5.0e+14 2.3e+28 82 C2 C3 195 SXT PHTX DST Java Movie
    1997/06/23 07:30:05 106 47 227 239 240 0.5 ---- ---- 86 C2 C3 195 SXT PHTX DST Java Movie
    1997/06/24 10:30:08 288 32 339 322 301 -1.8*1 6.0e+13*2 3.5e+28*2 279 C2 C3 195 SXT PHTX DST Java Movie
    1997/06/27 01:30:05 279 21 188 203 257 1.5*1 ---- ---- 276 C2 C3 195 SXT PHTX DST Java Movie
    1997/06/27 06:10:05 92 29 323 342 384 2.4*1 2.2e+14*2 1.2e+29*2 90 C2 C3 195 SXT PHTX DST Java Movie UVCS
    1997/06/27 16:02:05 267 19 170 149 0 -2.0*1 ---- ---- 269 C2 C3 195 SXT PHTX DST Java Movie
    1997/06/29 08:28:05 92 65 110 115 148 0.5*1 3.7e+14 2.3e+28 78 C2 C3 195 SXT PHTX DST Java Movie Poor Event
    1997/06/29 14:28:05 275 30 220 286 740 22.1*1 ---- ---- 269 C2 C3 195 SXT PHTX DST Java Movie Only C2
    1997/06/29 16:05:05 43 89 217 246 254 1.2*1 ---- ---- 51 C2 C3 195 SXT PHTX DST Java Movie UVCS
    1997/06/30 00:30:05 274 60 346 339 337 -0.4 2.0e+15 1.2e+30 279 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).