AAVSO Sudden Ionospheric Disturbance Report February 2018 Observers: A118 A119 A120 A122 A125 A131 A134 A136 A138 A143 A146 A149 A94 A96 A97 YYMMDD Event Peak Importance 180201 0000 1- 180202 0000 1- A120 - QUAL 180204 1756 1- A125 - QUAL 180204 1827 1+ A125 - QUAL 180204 1923 1 A125 - XRA 180204 2023 1- 180205 2157 2+ A125 - XRA 180207 0038 1+ A122 - XRA 180207 1247 2+ 180207 1340 1- 180207 1347 2 180207 1359 1 A125 - XRA 180207 1440 1+ 180208 2344 1 A125 - QUAL 180209 1541 1- A125 - XRA 180209 1554 1- A146 - XRA 180210 1213 1+ 180210 1314 2 180210 1322 2 A96 - XRA 180210 1333 1- A125 - XRA 180211 1002 1 180211 2150 1- A125 - XRA 180211 2243 1- A125 - XRA 180211 2327 1- A125 - XRA 180212 0135 3+ A122 - XRA 180212 1143 2+ A131 - XRA 180212 2241 1- A125 - QUAL 180216 2122 1- A146 - XRA ************************************************** Importance Summary - Feb 2018 1- events: 13 1 events: 4 1+ events: 4 2 events: 3 2+ events: 3 3 events: 0 3+ events: 1 ------------------ Total events: 28