AAVSO Sudden Ionospheric Disturbance Report September 2012 Observers: A102 A118 A119 A122 A124 A125 A129 A131 A132 A133 A134 A94 A97 YYMMDD Event Peak Importance 120901 1051 2 A119 - QUAL 120901 1112 1 120901 1138 2 120901 1349 1- A131 - QUAL 120901 1828 1 120902 0932 1 120902 1021 2 120902 1131 2 120902 1527 1- A131 - QUAL 120902 1809 1+ 120903 0944 2 120903 1040 2 120903 1048 2 120903 1317 2+ 120904 0950 1- 120905 0202 2+ A133 - QUAL 120905 0345 1+ 120905 0751 2+ 120906 0207 2 120906 0414 2 120906 0752 1 120906 1009 2 A131 - QUAL 120906 1522 2 120907 1045 2+ A132 - QUAL 120908 1750 2 120909 0700 2 120909 1457 1+ 120910 0931 1+ 120910 1024 1+ 120910 1254 2 120911 0933 1 120911 1105 2+ 120911 1112 2+ 120911 2058 1 120912 1027 2+ 120913 0742 2 120913 0834 2+ 120913 1307 1+ 120913 1603 1 120917 1144 2 120917 1356 1- 120917 1406 2+ 120919 1514 1+ 120920 1140 2+ A132 - QUAL 120925 0437 2 120925 0946 1- A131 - QUAL 120929 1510 2 A119 - QUAL 120930 0435 2+ 120930 1233 1- 120930 1428 1+ 120930 1511 1+ ************************************************** Importance Summary - Sep 2012 1- events: 6 1 events: 7 1+ events: 9 2 events: 18 2+ events: 11 3 events: 0 3+ events: 0 ------------------ Total events: 51