AAVSO Sudden Ionospheric Disturbance Report August 2024 Observers: A112 A118 A119 A131 A138 A141 A148 A153 A157 A96 A97 YYMMDD Event Peak Importance 240801 0004 2+ A157 - XRA 240801 0443 2 A131 - XRA 240801 0557 1- 240801 0655 3+ A118 - XRA 240801 0848 3 A119 - QUAL 240801 0956 1- A118 - QUAL 240801 1033 1 A118 - FLA 240801 1119 3+ 240801 1140 2+ 240801 1434 1+ A131 - FLA 240801 1442 2+ A118 - FLA 240801 1449 1- A97 - FLA 240801 1515 1- 240801 1615 1+ 240801 1639 1- 240801 1704 1- A118 - FLA 240801 1730 2 240801 1739 1 A97 - XRA 240801 1835 3 A119 - QUAL 240801 1850 2 A118 - XRA 240801 1901 1- A97 - XRA 240801 2022 1+ 240801 2307 1+ 240802 0449 2+ A131 - XRA 240802 0713 2+ A118 - FLA 240802 0800 1- A118 - XRA 240802 0821 1 A118 - FLA 240802 0849 3 A119 - QUAL 240802 0920 1- 240802 0952 2 A118 - XRA 240802 1042 1- A118 - QUAL 240802 1051 1 A118 - QUAL 240802 1113 1 A131 - XRA 240802 1120 2+ A118 - XRA 240802 1207 1- A118 - FLA 240802 1235 1 240802 1302 1- 240802 1352 1+ 240802 1507 1 A118 - QUAL 240802 1530 1+ 240802 1547 2+ A148 - QUAL 240802 1618 1 240802 1716 1 240802 1819 1+ A148 - XRA 240802 1826 1 A97 - XRA 240802 2352 1 240803 0000 A138 - QUAL 240803 0034 1 A157 - XRA 240803 0111 1+ A157 - QUAL 240803 0501 2 A131 - XRA 240803 0603 1+ 240803 0642 1- A118 - XRA 240803 0659 2+ A118 - XRA 240803 0935 1- A118 - FLA 240803 1034 2 240803 1158 1+ A119 - QUAL 240803 1230 1 240803 1341 2+ 240803 1348 2 240803 1413 3 A119 - QUAL 240803 1530 1 240803 1609 1- 240803 1625 1- 240803 1653 1 240803 1725 1+ 240803 1806 2 A157 - QUAL 240803 1838 1+ 240803 1920 2+ 240803 1928 1 240803 2302 1+ 240804 0554 1- 240804 0627 3 A119 - QUAL 240804 0805 1- 240804 0907 1 240804 0945 1- 240804 1008 1- A118 - XRA 240804 1038 2+ 240804 1100 2+ A97 - XRA 240804 1245 1- A118 - FLA 240804 1257 1- A118 - FLA 240804 1327 1+ 240804 1456 1 240804 1514 1+ 240804 1801 2+ A157 - QUAL 240804 2212 2 240805 0524 2+ 240805 0857 2+ A119 - FLA 240805 1000 2 240805 1135 2+ A118 - QUAL 240805 1223 1 A118 - QUAL 240805 1333 2+ 240805 1402 3 A141 - FLA 240805 1526 1+ 240805 1550 2+ A141 - QUAL 240805 1800 1 240805 1832 2 240806 0935 2+ A118 - FLA 240806 1135 2 240806 1420 1+ 240806 1520 2+ A118 - QUAL 240806 1616 1- 240807 0457 1- A131 - XRA 240807 1039 1- 240807 1226 1+ 240807 1347 2+ 240807 1507 1+ 240807 1841 2+ 240807 1854 2 240808 0103 3 A157 - XRA 240808 0635 1- A118 - XRA 240808 0717 1 A118 - XRA 240808 0830 1+ 240808 1139 1+ 240808 1214 1 A118 - FLA 240808 1301 1- 240808 1317 1- A118 - FLA 240808 1344 1+ 240808 1526 1- A97 - QUAL 240808 1726 1+ 240808 1849 1- A97 - XRA 240808 1930 2+ 240808 2252 2 240809 0545 2 A131 - XRA 240809 1005 2+ A118 - FLA 240809 1108 2+ A131 - XRA 240809 1117 2+ A118 - XRA 240809 1205 1 240809 1232 1 A118 - XRA 240809 1243 1+ A118 - XRA 240809 1312 2 A118 - XRA 240809 1359 1 240809 1421 1 240809 1444 1 240809 1549 1 240809 1752 1- A97 - XRA 240809 2038 1+ 240809 2116 2+ 240809 2125 2 240809 2348 2 A157 - XRA 240810 0609 2+ A119 - QUAL 240810 0727 1- A118 - XRA 240810 0856 1- 240810 0955 1- 240810 1052 2 A119 - FLA 240810 1110 2+ A119 - FLA 240810 1135 1- A118 - FLA 240810 1155 1 A118 - FLA 240810 1235 1+ 240810 1328 2+ A119 - QUAL 240810 1425 2+ 240810 1516 1+ 240810 1710 1+ A97 - XRA 240810 1838 3 A119 - QUAL 240810 1953 1+ 240810 2047 1+ 240810 2134 2 240811 0029 2 A157 - XRA 240811 0532 2 240811 0845 2 A118 - XRA 240811 1322 2 A118 - FLA 240811 1333 1+ A97 - QUAL 240811 1453 1 A118 - QUAL 240811 1600 2 A118 - FLA 240811 1606 1+ A97 - FLA 240811 1655 1- A97 - XRA 240811 1710 2 A148 - QUAL 240811 2007 2 240811 2016 2+ 240811 2352 1 240812 0249 2 A157 - QUAL 240812 0848 2+ 240812 1055 1+ A118 - QUAL 240812 1130 2 A118 - QUAL 240812 1313 1+ 240812 2153 1 240812 2257 1+ 240813 0715 1- A118 - XRA 240813 0737 1 A118 - XRA 240813 0804 1- 240813 1021 2 240813 1203 1+ 240813 1300 2 A118 - FLA 240813 1407 1+ A118 - QUAL 240813 1527 3 A119 - QUAL 240813 1636 1- 240813 1730 1 240813 1815 1- 240813 2143 1+ 240813 2211 2+ A148 - QUAL 240813 2244 1+ 240813 2342 1+ 240814 0635 2+ A118 - XRA 240814 0825 1- A118 - FLA 240814 1324 1+ 240814 1546 2 240814 2143 2 A148 - XRA 240815 0525 1- A131 - XRA 240815 0557 1 A131 - XRA 240815 0912 1- A118 - XRA 240815 1152 1- 240815 1411 1 240816 1003 1 240816 1150 1+ A118 - FLA 240816 1325 1+ 240816 1546 1+ 240816 1816 1 A97 - XRA 240816 2009 2+ A157 - FLA 240816 2217 2+ A157 - XRA 240816 2230 2 A141 - XRA 240817 0802 2+ 240817 1029 2 240817 1046 2+ 240817 1142 1+ 240817 1217 2 A118 - QUAL 240817 1609 1 A97 - QUAL 240817 1638 2+ A157 - QUAL 240817 2022 2+ A157 - QUAL 240817 2150 2 240818 0728 2+ A118 - XRA 240818 1015 1 A118 - QUAL 240818 1044 2+ 240818 1121 2 240818 1221 2+ 240818 1321 2 240818 1406 1+ A131 - QUAL 240818 1536 1- A131 - QUAL 240818 1734 1- A131 - XRA 240818 1740 1 A97 - XRA 240818 2105 1+ 240818 2233 2+ A148 - XRA 240818 2344 2 A148 - FLA 240818 2357 1 A157 - FLA 240819 0833 2 A131 - XRA 240819 0936 2 240819 1137 1 240819 1405 1+ 240819 1430 1 A131 - FLA 240819 1551 1- 240819 1631 1+ 240819 1720 1+ A118 - XRA 240819 2017 2 240819 2153 2 240819 2308 2 A157 - QUAL 240820 0558 1- A131 - QUAL 240820 1129 2+ A131 - QUAL 240820 1229 1+ 240820 1452 1+ 240820 1710 1 240820 2119 1+ 240821 0543 1 A131 - FLA 240821 0606 2 A131 - XRA 240821 0952 1 A118 - XRA 240821 1422 1- A118 - XRA 240821 1626 2 240821 1632 2 240821 2208 1+ 240822 0618 2 A131 - XRA 240822 0810 1- A118 - XRA 240822 0855 2+ 240822 1038 2+ A118 - XRA 240822 1047 2 A96 - XRA 240822 1301 1 240822 1530 1+ 240822 1850 1- A97 - XRA 240822 2127 1 240822 2359 2 A157 - XRA 240823 0730 2+ A118 - XRA 240823 0835 1+ 240823 0958 2+ A131 - FLA 240823 1021 2+ 240823 1138 2+ 240823 1200 1+ 240823 1239 1- A131 - XRA 240823 1300 2 240823 1359 1+ 240823 1503 2 240823 1621 1- 240823 1644 2 240823 1942 1+ 240823 2013 2 240823 2118 3+ A138 - QUAL 240824 0013 2+ A157 - XRA 240824 0903 1+ 240824 0928 1- 240824 1148 2+ 240824 1209 1+ A131 - QUAL 240824 1324 2 240824 1339 1- 240824 1348 1 240824 1411 1 A131 - XRA 240824 1500 2+ A119 - QUAL 240824 1900 1+ 240824 1920 3 240824 1930 1+ 240824 2130 3+ A138 - FLA 240824 2146 2 240824 2257 1 240824 2325 1+ 240825 0653 1- A118 - XRA 240825 1009 1+ 240825 1217 1+ 240825 1526 1 240825 1635 1- 240825 1737 1+ 240826 1102 1+ 240826 1138 2 240826 1308 2 240826 1948 1- 240827 0000 1+ A148 - QUAL 240827 0000 1+ A148 - QUAL 240827 0811 2+ 240827 0943 2+ 240827 1031 1 A118 - QUAL 240827 1031 1 A118 - QUAL 240827 1042 3+ A118 - QUAL 240827 1242 1- A131 - XRA 240827 1544 1+ 240827 1647 2 A153 - QUAL 240828 1459 1- 240828 1805 1+ 240828 1855 1 240828 1905 2 240828 2001 2+ 240828 2040 1 240828 2137 2+ 240828 2137 2+ 240829 1533 2 240829 1834 1- A97 - XRA 240830 0046 1- A157 - QUAL 240830 0854 2 240830 0959 2+ 240830 1222 2 240830 1517 1- 240830 1534 1- 240830 1757 1 240830 2100 2+ A157 - XRA 240830 2257 2+ A157 - QUAL 240831 0821 2 A118 - QUAL 240831 0856 2 240831 1144 2 240831 1301 2 240831 1306 2 240831 1456 1+ 240831 1752 1+ 240831 1849 1- A97 - XRA 240831 2021 1+ 240831 2047 2 A157 - QUAL 240831 2339 2+ A157 - XRA 240831 2349 1 A148 - XRA 240831 2349 1 A148 - XRA ************************************************** Importance Summary - Aug 2024 1- events: 65 1 events: 60 1+ events: 75 2 events: 70 2+ events: 64 3 events: 10 3+ events: 5 ------------------ Total events: 349