AAVSO Sudden Ionospheric Disturbance Report September 2015 Observers: A118 A119 A120 A122 A125 A131 A134 A136 A141 A142 A143 A146 A94 A96 A97 YYMMDD Event Peak Importance 150902 0755 1+ A122 - XRA 150903 1139 1+ 150905 0215 2+ A122 - XRA 150905 1922 1 A125 - QUAL 150907 1752 1 A125 - QUAL 150909 1140 2 A143 - QUAL 150909 1537 1+ A125 - QUAL 150909 2041 2 A125 - QUAL 150911 1628 1- A146 - XRA 150913 0500 2+ 150913 1903 2+ A125 - QUAL 150914 1447 1- A125 - QUAL 150915 0127 1 A134 - XRA 150915 0227 1 A134 - XRA 150915 0258 2 150915 0505 2+ 150915 0521 1 A134 - XRA 150915 2127 1 A125 - QUAL 150916 1247 1+ 150916 1255 2 A143 - XRA 150916 1350 1 A131 - XRA 150916 1529 2 150916 1543 2+ 150916 1856 2 A146 - XRA 150916 1924 2 150917 0130 2 150917 0303 2+ 150917 0609 1+ A134 - XRA 150917 0912 1+ A131 - XRA 150917 0939 2+ 150917 0946 2+ A96 - XRA 150917 1335 2+ A143 - FLA 150917 1820 2 150917 1926 1+ A146 - XRA 150917 1959 1 150917 2117 2+ A94 - XRA 150917 2149 2 A125 - QUAL 150917 2259 1+ 150918 1136 1 150918 1313 1 150918 1341 1+ A125 - QUAL 150920 0500 2+ 150920 0936 1+ 150920 1415 1 A131 - XRA 150920 1804 2+ 150920 1805 2 150923 0729 2 A136 - XRA 150923 0735 1+ A122 - XRA 150923 1003 2 150923 1141 1- A131 - XRA 150923 1448 1 150923 1758 2+ A94 - QUAL 150923 1900 1+ 150924 1703 1 A125 - FLA 150924 2352 2 150927 0602 1 A122 - XRA 150927 0800 1+ A136 - XRA 150927 0858 2+ A122 - FLA 150927 1040 2+ 150927 1050 3 150927 1227 1 150927 1255 1+ 150927 1348 1 150927 1538 2 150927 1549 1+ 150927 1648 2 150927 1718 2 A125 - QUAL 150927 1744 2 150927 1754 2 150927 1853 2 150927 1952 3 150927 2000 2 150927 2020 2+ A125 - FLA 150927 2101 2+ 150927 2316 2 150928 0338 2 A120 - FLA 150928 0355 3 A122 - XRA 150928 0652 1+ A136 - XRA 150928 0734 2 150928 0903 2+ 150928 1128 2 150928 1136 2 150928 1158 2 150928 1237 1+ 150928 1307 2+ 150928 1320 2 150928 1341 2 A96 - FLA 150928 1420 1- 150928 1433 1+ 150928 1458 1+ 150928 2024 1+ 150928 2122 2+ A125 - QUAL 150928 2148 1+ 150928 2232 2 A122 - QUAL 150928 2345 2 A122 - QUAL 150929 0305 2+ A120 - XRA 150929 0316 3 A122 - XRA 150929 0455 2+ A122 - XRA 150929 0644 1+ 150929 0810 2 A143 - FLA 150929 0851 1+ 150929 0926 1 150929 1017 1+ 150929 1116 2 150929 1304 2+ 150929 1741 1+ 150929 1924 1 150930 0018 2 A122 - XRA 150930 0656 2 150930 1053 2 150930 1057 2 150930 1143 1- A131 - XRA 150930 1303 2 150930 1318 2 150930 2211 2 A122 - XRA ************************************************** Importance Summary - Sep 2015 1- events: 5 1 events: 18 1+ events: 25 2 events: 40 2+ events: 23 3 events: 4 3+ events: 0 ------------------ Total events: 115