AAVSO Sudden Ionospheric Disturbance Report August 2012 Observers: A102 A118 A119 A122 A124 A125 A129 A131 A132 A133 A134 A94 A97 YYMMDD Event Peak Importance 120801 0955 1+ 120801 1036 1+ 120801 1053 2 A119 - QUAL 120801 1253 2 120801 1424 1- A131 - QUAL 120803 0601 1+ 120803 0808 1+ 120803 2130 1- 120804 1141 1+ 120804 1148 2+ 120806 0418 2 A129 - QUAL 120806 0437 2 120806 0817 2 120806 1023 1 120806 1030 1 A132 - QUAL 120806 1136 2 120806 1142 1 120806 1408 1+ 120806 1659 2 120807 0818 1+ 120807 1024 1 120807 1331 2 120808 1133 2+ 120808 1407 2 A119 - QUAL 120808 1448 2 A119 - QUAL 120808 1620 1+ 120809 0000 3 A132 - QUAL 120809 0532 1- 120809 1147 2+ 120810 0421 2+ 120810 1740 1+ 120810 1918 2+ A94 - QUAL 120811 1213 3 120811 1220 2+ 120813 0930 1+ 120813 1242 2 120814 1145 1+ A132 - QUAL 120816 1259 3 120816 1314 3 120817 0837 2 120817 1319 2+ 120817 1532 1+ 120817 1612 1 120817 1720 2 120818 0326 3 120818 0620 2 120818 0837 1- 120818 0858 1+ 120818 0955 2 120818 1038 1 120818 1150 1- 120818 1227 1 A131 - QUAL 120818 1340 1+ 120818 1428 2 120818 1510 1- A94 - QUAL 120818 1608 2+ 120818 1916 1+ A94 - QUAL 120818 2254 1 120818 2323 2 120829 2000 1+ A94 - QUAL 120830 0825 1- A131 - QUAL 120830 0912 2 120830 1211 2+ 120830 1921 1- A94 - QUAL 120830 1958 1+ 120830 2145 1 A94 - QUAL 120831 0722 2 120831 0730 2 A133 - QUAL 120831 0957 2 A131 - QUAL 120831 1414 1+ 120831 1611 2 120831 2025 3+ A94 - QUAL ************************************************** Importance Summary - Aug 2012 1- events: 8 1 events: 9 1+ events: 18 2 events: 22 2+ events: 9 3 events: 5 3+ events: 1 ------------------ Total events: 72