AAVSO Sudden Ionospheric Disturbance Report August 2023 Observers: A118 A119 A122 A131 A136 A138 A141 A146 A148 A150 A153 A157 A96 YYMMDD Event Peak Importance 230801 0127 1 A153 - XRA 230801 0147 1- A153 - XRA 230801 0205 2 A153 - XRA 230801 0449 2+ 230801 0539 2 230801 0640 2+ 230801 0656 2+ 230801 0738 2 230801 0908 2+ 230801 0914 2 A96 - XRA 230801 1047 2 230801 1217 1- A118 - FLA 230801 1245 2 230801 1409 2 230801 1418 2 A157 - XRA 230801 2010 1+ 230801 2149 1+ 230802 0023 2+ 230802 0812 1+ 230802 1049 1 230802 1118 1+ 230802 1134 2 A148 - QUAL 230802 1453 1+ 230802 1554 1+ A148 - QUAL 230802 1622 1+ 230802 1655 3+ A148 - QUAL 230802 1916 1+ 230802 1945 3+ A148 - QUAL 230802 2119 1 230802 2119 1+ 230802 2148 2 A141 - QUAL 230802 2157 1 A148 - QUAL 230802 2217 3 230803 0137 2 230803 0903 2 230803 1155 2 230803 1203 2 A96 - XRA 230803 1333 1+ 230803 2021 1+ 230803 2249 2 A122 - QUAL 230803 2348 1- A148 - XRA 230804 0110 3+ A122 - XRA 230804 1958 2+ 230805 0305 3+ A122 - XRA 230805 0528 1- A131 - XRA 230805 0709 2 230805 0825 2+ A122 - QUAL 230805 0932 2+ 230805 1451 1- 230805 1907 2 230805 2204 3 230805 2218 3 230806 0550 1- A131 - XRA 230806 1056 2+ 230806 1835 2 230807 0004 1 A157 - QUAL 230807 0444 3 230807 1155 2 A131 - FLA 230807 1238 2 A131 - QUAL 230807 1340 1+ 230807 1441 1 230807 1519 1 230807 1601 2+ 230807 1605 2+ 230807 1954 2 230807 2041 3 230808 0930 2+ 230808 1808 2 230808 2249 1 230809 0701 2+ A136 - XRA 230809 1557 1+ A157 - XRA 230810 0028 2+ A153 - XRA 230810 2221 1 230810 2250 1+ A148 - XRA 230811 0647 1+ 230811 1117 2 230811 1251 1 230811 1339 2 A131 - FLA 230811 1911 1+ 230811 2250 1- A153 - XRA 230811 2307 1+ A153 - XRA 230811 2348 1+ 230812 0914 2 230812 1047 1+ 230812 1420 1- 230812 1900 1+ 230812 2351 1 230813 0952 2 230813 1042 2+ A131 - XRA 230814 2102 2+ 230815 1418 1- A146 - QUAL 230815 2155 2 A153 - XRA 230816 1022 1 A131 - XRA 230816 1353 2+ 230817 0829 2 230817 1237 2 230817 1331 1- A131 - QUAL 230817 1420 1 230817 1523 1- A131 - XRA 230818 1930 1+ 230818 2135 2+ A153 - XRA 230819 0648 1- A118 - XRA 230819 1721 1 A146 - QUAL 230819 1840 1- A141 - QUAL 230820 1231 1- 230820 1254 1+ A131 - QUAL 230820 1814 1- A146 - QUAL 230820 1832 2+ 230820 1934 3 A153 - XRA 230820 1944 2+ A157 - XRA 230820 2153 2+ A157 - QUAL 230821 0751 1+ 230821 1228 2+ A118 - XRA 230821 2334 2 A153 - XRA 230821 2343 2 A148 - XRA 230822 2305 2+ 230822 2341 3+ A122 - XRA 230823 1013 1 230823 1406 1 230824 2207 2 A153 - XRA 230825 0108 2+ A153 - XRA 230825 0120 3 A122 - XRA 230825 1549 1+ 230826 1008 2 230826 1416 2+ A96 - QUAL 230826 2151 1- A153 - XRA 230826 2223 3 230826 2239 3 230828 2248 1 A141 - XRA 230828 2327 3 A122 - QUAL 230829 2325 2+ 230830 1641 2 230830 1641 1+ 230830 1757 1+ A153 - XRA 230830 2327 2 A153 - XRA 230830 2327 2 A153 - XRA ************************************************** Importance Summary - Aug 2023 1- events: 16 1 events: 17 1+ events: 26 2 events: 36 2+ events: 26 3 events: 10 3+ events: 5 ------------------ Total events: 136