AAVSO Sudden Ionospheric Disturbance Report September 2016 Observers: A118 A119 A120 A122 A125 A131 A134 A138 A143 A146 A147 A94 A96 A97 YYMMDD Event Peak Importance 160904 1816 1 A94 - XRA 160908 1626 1- A146 - XRA 160908 1637 1- A146 - XRA 160918 0240 2+ A122 - XRA 160921 0156 2+ A122 - XRA 160921 1035 2+ A118 - XRA 160921 1042 2+ A131 - XRA 160921 1053 2+ A96 - XRA 160921 1151 1- 160922 0408 3 A122 - XRA 160922 0515 2+ A122 - XRA 160922 0530 2+ A120 - XRA 160922 0546 1+ 160922 0728 3 A122 - QUAL 160922 0829 1 160922 1026 2 160922 1153 2 160922 1756 2 160922 1758 2+ A147 - XRA 160922 1918 2+ 160922 1919 2 A147 - XRA 160922 1930 2+ A138 - XRA 160923 0438 2 A122 - QUAL 160925 1915 1- 160925 1922 1+ A147 - XRA 160925 1922 1+ A147 - XRA 160925 2337 2+ A122 - QUAL 160927 0748 2 A122 - XRA ************************************************** Importance Summary - Sep 2016 1- events: 4 1 events: 2 1+ events: 3 2 events: 6 2+ events: 11 3 events: 2 3+ events: 0 ------------------ Total events: 28