AAVSO Sudden Ionospheric Disturbance Report February 1985 Observers: A-01 A-09 A-19 A-26 A-31 A-46 A-49 A-50 A-52 A-55 YYMMDD Event Peak (UT) Importance 850218 1454 1 850218 1556 1 850218 2326 1+ 850219 1511 1- 850219 1608 1 850219 1827 1 ******************************************* Importance Summary February 1985 1- events: 1 1 events: 4 1+ events: 1 2 events: 0 2+ events: 0 3 events: 0 3+ events: 0 Total events: 6