AAVSO Sudden Ionospheric Disturbance Report January 2026 Observers: A118 A119 A136 A138 A141 A148 A150 A152 A153 A96 YYMMDD Event Peak Importance 260101 1755 2+ A150 - XRA 260103 1729 1 260103 2037 1- A148 - XRA 260106 1610 2 A148 - XRA 260108 1609 2 260110 1330 2+ A150 - QUAL 260110 1639 2+ A150 - QUAL 260110 1804 2 A150 - XRA 260110 2016 1 A148 - XRA 260111 1440 2+ A148 - QUAL 260111 2236 2+ A148 - QUAL 260112 1014 1- A118 - XRA 260113 1639 2 A148 - XRA 260113 1852 2+ A141 - XRA 260113 1852 2+ A141 - XRA 260113 1903 1- A148 - XRA 260114 1617 1 A148 - XRA 260114 2032 2+ 260116 0910 2 260116 1915 1 A150 - XRA 260117 1029 2 260117 1506 1- A136 - XRA 260118 1030 1+ 260118 1752 3 260119 1120 2 260119 1245 1- A150 - QUAL 260119 1307 1- A152 - XRA 260119 1506 1- A152 - QUAL 260119 1754 1 A150 - XRA 260119 1918 1 A148 - XRA 260119 1947 2 A148 - QUAL 260120 1106 2 A152 - QUAL 260120 1322 1 A152 - XRA 260120 1407 1 A152 - QUAL 260120 1543 1 A148 - QUAL 260121 1216 2 A118 - XRA 260121 1823 2 A141 - XRA 260121 1936 2+ A141 - XRA 260121 1936 2+ A141 - XRA 260122 1049 2+ A152 - XRA 260122 1050 2 260122 1713 2 A148 - XRA 260122 1953 1- 260123 1310 1 A96 - XRA 260124 0832 1- A152 - XRA 260124 1839 1+ A148 - XRA 260125 1030 1+ 260125 1712 1 A148 - XRA 260125 1718 1 A148 - XRA 260125 2144 2 A138 - XRA 260126 1337 1- 260131 0847 2 A118 - XRA 260131 1048 1- A152 - XRA 260131 1051 1 260131 1213 1- A118 - QUAL 260131 1300 1- 260131 1300 1- 260131 1833 1+ 260131 1920 1 260131 2023 1- 260131 2026 1- ************************************************** Importance Summary - Jan 2026 1- events: 16 1 events: 14 1+ events: 4 2 events: 15 2+ events: 11 3 events: 1 3+ events: 0 ------------------ Total events: 61