AAVSO Sudden Ionospheric Disturbance Report July 2023 Observers: A112 A118 A119 A122 A131 A136 A138 A141 A148 A150 A152 A153 A157 A96 A97 YYMMDD Event Peak Importance 230701 0919 1- A136 - QUAL 230701 1140 2 230701 1256 1 230701 1410 2 230701 1917 1+ 230701 2006 1 A97 - FLA 230701 2013 2+ A153 - FLA 230701 2223 2 230701 2225 2+ 230701 2322 1- A141 - FLA 230701 2322 1- A141 - FLA 230702 0234 1 A153 - QUAL 230702 0515 1+ A152 - FLA 230702 0824 1 230702 0833 1+ 230702 0852 2 230702 1215 3+ A122 - QUAL 230702 2127 1 230702 2228 1+ 230702 2310 2+ 230702 2311 2+ 230703 0653 1+ 230703 1045 1+ 230703 1123 1+ 230703 1204 1 230703 1237 1+ 230703 1408 1+ A131 - FLA 230703 1419 1 A118 - FLA 230703 1447 1- 230703 1513 2 230703 1519 1 230703 1818 1+ 230703 1840 3+ A148 - QUAL 230703 2055 1- 230703 2113 1+ 230703 2144 3+ A148 - QUAL 230703 2353 2+ 230704 0406 2+ A122 - QUAL 230704 0641 1- 230704 1232 2 230704 1326 2 230704 1430 1+ 230704 1924 2 230704 2133 1 230704 2212 2+ A153 - QUAL 230704 2338 1+ A153 - FLA 230704 2350 2 A157 - FLA 230705 0931 1 230705 1044 1- 230705 1100 1+ 230705 1351 1+ 230705 1551 1 230705 1612 1+ 230705 1816 2 230705 1852 2+ 230705 2245 1- A153 - QUAL 230706 0443 1+ 230706 0825 2 230706 0953 1 A131 - FLA 230706 1045 2 230706 1243 1 A131 - FLA 230706 1314 1+ A131 - QUAL 230706 2351 1- A153 - QUAL 230707 0629 2 230707 1820 1- A153 - FLA 230708 0145 3 A122 - FLA 230708 1125 2 230708 2123 1- A153 - FLA 230708 2159 1- A153 - FLA 230708 2321 1+ A153 - QUAL 230708 2351 1 A153 - QUAL 230709 0021 2 A157 - FLA 230709 1116 2+ 230709 1138 2+ A152 - QUAL 230709 1354 2 230709 1401 2 230709 1812 2 A153 - FLA 230709 2321 1 230709 2337 1- A153 - QUAL 230709 2355 1- A153 - QUAL 230710 0039 1 A153 - FLA 230710 0158 1+ A153 - FLA 230710 0914 1- A118 - FLA 230710 0950 1- A118 - QUAL 230710 1014 2 A118 - FLA 230710 1022 1 A152 - FLA 230710 1720 2 A153 - QUAL 230710 1925 1 230710 2218 2 230711 0214 1- A153 - QUAL 230711 0849 1+ 230711 0923 1 230711 1124 2 230711 1259 1+ 230711 1334 1+ 230711 1434 2 230711 1512 2+ A157 - FLA 230711 1613 2 230711 1620 2 230711 1805 2 230711 1904 3+ A153 - FLA 230711 1929 1+ 230711 2010 3+ A153 - FLA 230711 2021 1+ A150 - FLA 230711 2217 2+ 230711 2338 1+ 230712 0033 2+ A153 - FLA 230712 0040 2+ A157 - FLA 230712 0220 1 A153 - QUAL 230712 0451 1+ 230712 0515 2 230712 0617 1- 230712 0855 2 230712 1029 1 230712 1513 1 230712 1733 1- 230712 1938 1 230712 2229 1- A153 - QUAL 230712 2306 2+ A153 - QUAL 230713 0042 1- A153 - QUAL 230713 0100 2 A153 - QUAL 230713 0522 2+ A131 - FLA 230713 0735 2 230713 0813 1+ 230713 0948 2 230713 1104 2 A112 - FLA 230713 1120 1+ 230713 1236 2+ 230713 1243 2+ 230713 1344 2+ A150 - QUAL 230713 1413 2+ A112 - FLA 230713 1654 1 230713 1919 2+ 230713 2228 1- A153 - FLA 230713 2250 2 230714 0031 2 A153 - FLA 230714 0936 2 230714 1150 1+ 230714 1203 2 230714 1333 1 230714 1401 2 230714 1846 2 230714 1952 2 230715 0016 1 A122 - QUAL 230715 0735 2 230715 0742 2+ 230715 0827 1 230715 0953 1- 230715 1009 2 230715 1603 1- 230715 2002 1+ 230715 2057 2 A153 - FLA 230715 2152 2+ A153 - QUAL 230715 2206 1 A141 - QUAL 230716 0826 1+ 230716 0842 1 230716 1032 1+ 230716 1509 2 230716 1719 1- 230716 1734 1+ 230716 1744 2 230716 1916 2 230716 2050 1+ 230717 0517 1 230717 0605 1 230717 0657 2+ 230717 0926 1+ 230717 1105 1+ A112 - FLA 230717 1515 1+ 230717 1615 1 A131 - FLA 230717 1736 1+ A153 - FLA 230717 1827 1+ A153 - QUAL 230717 1859 2 A153 - QUAL 230717 2002 2+ A153 - FLA 230717 2213 1 230717 2232 1- 230717 2253 1+ 230717 2329 2 230718 0610 1 230718 0655 1+ 230718 0906 1 230718 1043 1+ 230718 1147 2 A131 - QUAL 230718 1250 1+ 230718 1542 2 230718 1548 1+ 230718 1731 1+ 230718 1836 1+ 230718 1926 1- A153 - FLA 230718 1944 2 230718 2008 1- A153 - FLA 230718 2024 1+ 230718 2244 2 230719 0832 1 230719 1025 1 230719 1056 2 230719 1313 1 230719 1349 1+ 230719 1507 1- 230719 1545 1- 230719 1645 1 A153 - QUAL 230719 1718 3 230719 1725 2 230719 1902 1+ 230719 2151 2+ A153 - FLA 230720 1951 2 230721 0905 3+ A96 - QUAL 230721 1054 1+ A118 - FLA 230722 0325 3 A122 - FLA 230722 1100 2 230722 1343 1 230722 2324 1+ A153 - FLA 230723 0453 2+ 230723 1457 1+ 230723 1540 2 A157 - QUAL 230724 0018 2+ 230724 0143 3+ A122 - FLA 230724 1802 1 A153 - FLA 230724 2328 1+ A153 - FLA 230725 0201 2+ 230725 0701 1 230725 1246 1- 230725 2038 3+ A122 - FLA 230725 2057 1+ 230725 2117 2 230725 2355 1- A153 - FLA 230726 0039 1 A153 - FLA 230726 0103 2+ A153 - QUAL 230726 0430 1+ A131 - QUAL 230726 0440 3+ A122 - QUAL 230726 0519 2 230726 0610 1- 230726 0651 2 230726 0844 2 230726 1034 1+ 230726 1230 1+ 230726 1313 1 230726 1523 1+ 230726 1559 2 230726 2025 2 A122 - QUAL 230726 2207 2+ A157 - QUAL 230726 2207 2+ A157 - QUAL 230726 2300 1+ 230727 0036 3 A153 - FLA 230727 0146 3+ A122 - QUAL 230727 0455 1- A131 - QUAL 230727 0622 1+ A118 - QUAL 230727 0731 1+ 230727 0942 2+ 230727 0951 2+ 230727 1128 1- 230727 1229 1- 230727 1257 1 230727 1349 1+ 230727 1558 1- A97 - QUAL 230727 1655 1 A97 - QUAL 230727 2052 2 A97 - QUAL 230727 2225 2+ 230728 0142 2+ A153 - QUAL 230728 0634 2 230728 0758 1+ 230728 0933 3+ A118 - QUAL 230728 1101 2 230728 1344 1- A118 - QUAL 230728 1452 2 230728 1552 2 230728 1558 2 230728 2056 1+ 230729 0200 3+ A122 - QUAL 230729 0725 2+ 230729 1031 1+ 230729 1320 1 230729 1623 2 230729 2008 1 A153 - QUAL 230729 2337 1+ A153 - QUAL 230730 0509 1+ A131 - QUAL 230730 0814 2 230730 0821 2+ 230730 1316 1+ 230731 0447 2+ 230731 0722 1- 230731 0858 2+ 230731 0858 2 230731 1141 1+ 230731 1512 1- 230731 1514 1- 230731 1530 1 A153 - QUAL 230731 2252 2 ************************************************** Importance Summary - Jul 2023 1- events: 41 1 events: 49 1+ events: 70 2 events: 72 2+ events: 40 3 events: 4 3+ events: 12 ------------------ Total events: 288