AAVSO Sudden Ionospheric Disturbance Report October 2023 Observers: A118 A119 A122 A131 A136 A141 A148 A150 A152 A153 A157 A96 A97 YYMMDD Event Peak Importance 231001 0130 3+ A122 - XRA 231001 0916 1- 231001 0950 2 231001 1115 1+ 231001 1425 1- A131 - XRA 231001 1448 1 231002 0905 1- 231002 1042 1 A131 - XRA 231002 1151 1 231002 1244 2+ A141 - XRA 231002 1245 2+ 231003 0941 1+ 231003 1213 1 A131 - XRA 231003 1543 1- A131 - XRA 231003 1613 1 A97 - XRA 231003 1704 1- 231003 1742 1- A97 - XRA 231004 0846 1- 231004 0953 1- 231005 0701 1- 231005 1632 1 A97 - XRA 231005 1913 1+ 231006 1104 2 231006 1753 1 A153 - XRA 231006 1817 1+ 231007 0814 2 231007 1352 1 231007 1807 1+ 231007 1831 2 231007 2046 1- A153 - XRA 231007 2058 1 A153 - XRA 231007 2236 1- A153 - XRA 231007 2323 2 A153 - XRA 231008 0927 1+ A118 - XRA 231008 1241 1- 231008 1408 1- A131 - XRA 231009 0824 1- 231009 0837 1 231009 1138 1+ 231009 1909 2 231009 2153 1 A153 - XRA 231009 2255 1 A153 - XRA 231010 1042 1+ 231010 1159 1- 231010 1217 2 231010 1354 1- 231010 1559 1 231010 1651 1+ 231010 1804 1 231010 2118 1+ A157 - FLA 231011 0938 1+ 231011 1433 1+ 231011 1439 2 231011 1955 1 231011 2213 1+ 231012 1753 1- A97 - XRA 231014 1619 2 231014 1635 2 A97 - XRA 231015 1634 1 231016 1053 2+ 231016 1233 1- A131 - QUAL 231016 1607 1 231019 1357 1 231020 1110 2 231021 0030 3+ A122 - XRA 231023 1958 1 231024 2003 1- A141 - XRA 231024 2346 3+ A122 - XRA 231026 1328 1- A96 - XRA 231026 2330 3 A122 - XRA 231029 0902 1 A131 - XRA 231029 0949 1- 231029 1142 1+ 231029 1308 1+ 231029 1309 1+ 231029 1914 1+ A148 - XRA 231029 1924 2 A148 - XRA 231029 1924 2 A148 - XRA 231031 2023 1 231031 2157 1- ************************************************** Importance Summary - Oct 2023 1- events: 22 1 events: 21 1+ events: 17 2 events: 13 2+ events: 3 3 events: 1 3+ events: 3 ------------------ Total events: 80