AAVSO Sudden Ionospheric Disturbance Report November 2021 Observers: A119 A120 A122 A126 A131 A136 A138 A141 A146 A148 A150 A152 A153 A97 YYMMDD Event Peak Importance 211102 0259 1- A122 - XRA 211103 0248 1 A122 - QUAL 211103 2107 1+ 211104 1054 1+ 211104 1221 1- A146 - XRA 211104 1232 1 A119 - XRA 211104 1441 1- A152 - XRA 211104 1441 1- A152 - XRA 211104 1455 1+ 211104 1503 1 A152 - XRA 211105 1322 2 A119 - XRA 211105 2158 1+ A122 - XRA 211105 2207 2+ A153 - XRA 211105 2207 2+ A153 - XRA 211107 1635 2 A152 - XRA 211109 1605 2 211109 1606 1+ A148 - QUAL 211109 1644 2+ A152 - QUAL 211109 1653 3 211109 1653 3+ 211109 1702 3+ A138 - XRA 211109 1702 3 211109 1719 2+ A152 - QUAL 211110 1807 1- A148 - XRA 211110 1807 1- A148 - XRA 211113 0845 1- 211113 0845 1- 211116 1748 1- A141 - XRA 211117 1454 1- A141 - XRA 211126 1210 1 A146 - XRA ************************************************** Importance Summary - Nov 2021 1- events: 10 1 events: 4 1+ events: 5 2 events: 3 2+ events: 4 3 events: 2 3+ events: 2 ------------------ Total events: 30