Károly Kecskeméty KFKI RMKI Budapest, Hungary 2005 September 7-16 SEP events Károly Kecskeméty KFKI RMKI Budapest, Hungary CEPAC/COSTEP meeting ISSI March 23-24, 2006

2005 September 07, 1:40 p.m. EDT Region 808 produced a powerful X17 flare (R4 on the NOAA Scale) observed on the NOAA GOES satellite at 07/1740 UTC. the 4th largest in the last 15 years Flares X-ray Sep 7 X17 Event from NOAA AR 10808 (peak at 17:40 UT) Sep 8 X5.4 20:52 - 21:17 UT (peak 21:06 UT) (S12E75) Sep 9 X1.1 02:43 - 03:07 UT (peak at 03:00 UT) (S12E68 Sep 9 X3.6 09:42 - 10:08 UT (peak at 09:59 UT) (S11E66) Sep 9 X6.2 19:13 - 20:36 UT (peak at 20:04 UT) S12E67 Sep 10 X1.1 16:34 - 16:51 UT (peak at 16:43 UT) S11E47 Sep 10 X2.1 21:30 - 22:43 UT (peak at 22:11 UT) S13E47 Sep 13 X1.5 19:19 - 20:57 UT (peak at 19:27 UT S09E10 Sep 13 X1.7 23:15 - 23:30 UT (peak at 23:22 UT) S10E03 CME 2005/09/09 at 19:48 UT Full Halo Event bright asymmetric loop 2257 km/s 2005/09/10 at 21:52 UT bright asymmetric loop front 1893 km/s 2005/09/11 at 13:00 UT as a bright loop front 1922 km/s 2005/09/13 at 20:18 UT Full Halo Event 1866 km/s 2005/09/13 at 23:36 UT 999 km/s