AAVSO Sudden Ionospheric Disturbance Report February 2021 Observers: A118 A119 A120 A122 A134 A138 A141 A143 A146 A147 A148 A149 A152 A96 A97 YYMMDD Event Peak Importance 210201 0000 1- A120 - QUAL 210218 1329 1- A146 - XRA 210218 1335 1- A146 - XRA 210219 0923 1- A152 - QUAL 210222 2120 2 A122 - XRA 210224 1433 1- A146 - XRA 210224 1741 1- A146 - XRA 210225 1348 1- A152 - XRA 210227 1801 1 210228 0645 1- 210228 0647 1- ************************************************** Importance Summary - Feb 2021 1- events: 9 1 events: 1 1+ events: 0 2 events: 1 2+ events: 0 3 events: 0 3+ events: 0 ------------------ Total events: 11