AAVSO Sudden Ionospheric Disturbance Report April 2005 Observers: A29 A50 A87 A90 A95 A97 A99 A100 A102 A108 A115 YYMMDD Event Peak Importance 050405 2006 1+ 050406 0602 2 050410 1804 2+ 050410 1813 1+ 050412 1721 2 050416 1632 2 050417 0143 1 050417 2107 2 050426 0443 2 050426 2004 2 050429 2043 1 050430 1827 1 ************************************************** Importance Summary - Apr 2005 1- events: 0 1 events: 3 1+ events: 2 2 events: 6 2+ events: 1 3 events: 0 3+ events: 0 ------------------ Total events: 12