AAVSO Sudden Ionospheric Disturbance Report January 1984 Observers: A-01 A-09 A-19 A-26 A-28 A-46 A-49 A-50 A-52 YYMMDD Event Peak (UT) Importance 840108 2018 1 840111 1835 1+ 840112 1915 1- 840112 1930 1+ 840113 1701 1- 840120 1419 3 840120 1743 2 840120 2342 1 840121 1600 1- 840121 1951 1- 840122 0615 1- 840122 2059 1 840123 0838 1+ 840123 1601 1- 840123 1653 1 840124 0417 1- 840124 0631 1- 840124 0809 1- 840124 0902 1+ 840125 0745 1- 840125 0802 1+ 840126 0549 1- 840126 1534 1+ 840126 1630 2 840126 1722 1 840127 0703 2+ 840127 1404 1 840127 1444 1- 840127 1659 1- 840127 1905 1 840128 0719 1- 840128 0738 2 840128 1537 2 840128 1801 1 840128 2159 1- 840129 2246 1 840130 0444 2+ 840131 0703 1- 840131 0732 2+ ******************************************* Importance Summary January 1984 1- events: 16 1 events: 9 1+ events: 6 2 events: 4 2+ events: 3 3 events: 1 3+ events: 0 Total events: 39