AAVSO Sudden Ionospheric Disturbance Report August 2011 Observers: A102 A118 A119 A121 A122 A124 A125 A128 A80 A91 A94 A96 A97 YYMMDD Event Peak Importance 110801 0714 1- 110801 0733 2 110801 0815 1 110801 1240 2+ 110801 1703 2+ 110801 2330 2 110802 0323 1- 110802 0617 3+ 110802 1141 1 110802 1723 2+ 110803 0318 1 110803 0335 1+ 110803 0423 2+ 110803 0433 1+ 110803 0746 1- 110803 0759 2+ 110803 1038 2+ 110803 1334 3 110803 1902 3+ 110803 1931 2+ 110803 1936 2 110804 0241 2 110804 0358 2 110804 0804 2+ 110804 0921 2 110804 1014 2+ 110804 1443 1+ 110804 2124 2 110804 2316 1- 110805 0331 1- 110805 0610 1 110805 1246 2+ 110805 1500 2 110805 1747 2 110805 2255 2 110806 0015 3 110806 0848 1+ 110806 1146 2+ 110806 1223 2+ 110807 0236 1+ 110807 0613 1- 110807 0833 1+ 110807 0928 1 110807 1406 2 110808 1637 2 110808 1810 1+ 110808 2213 2 110809 0353 2 110809 0726 1 110809 0806 2+ 110809 1343 2+ 110809 1554 2+ 110809 1813 2 110809 2345 1+ 110810 0938 2 110810 1042 2 110810 1410 2+ 110810 1523 2+ 110810 1615 1 110811 0410 1- 110811 0748 2 110811 0943 1 110811 1002 3+ 110811 1020 1+ 110815 1119 2+ 110815 1630 2 110817 0019 1- 110817 1040 2+ 110817 1629 2 110818 0647 2 110818 1516 2+ 110820 0744 1 110820 2054 2 110821 2258 1 110825 0704 1+ 110826 0357 1- 110826 1314 3 110829 0719 2+ 110829 0829 1- 110829 1020 1- 110829 1041 1+ 110829 1105 2+ 110829 1716 1- 110830 0314 1- 110830 0508 1- 110830 0642 1+ 110830 0922 2 110830 1205 3 110830 1358 2 110830 1600 1- 110830 2246 1+ 110831 0346 1- 110831 1124 1+ ************************************************** Importance Summary - Aug 2011 1- events: 16 1 events: 10 1+ events: 14 2 events: 24 2+ events: 22 3 events: 4 3+ events: 3 ------------------ Total events: 93