AAVSO Sudden Ionospheric Disturbance Report December 1984 Observers: A-01 A-09 A-19 A-26 A-46 A-49 A-50 A-52 A-58 YYMMDD Event Peak (UT) Importance No SID Events Recorded ******************************************* Importance Summary December 1984 1- events: 0 1 events: 0 1+ events: 0 2 events: 0 2+ events: 0 3 events: 0 3+ events: 0 Total events: 0