AAVSO Sudden Ionospheric Disturbance Report April 2006 Observers: A29 A50 A80 A87 A90 A93 A96 A97 A99 A102 A107 A108 A115 A117 YYMMDD Event Peak Importance 060405 1310 1+ 060405 1522 1+ 060406 0535 1+ 060406 2042 2 060407 0804 1+ 060411 1828 2 060422 0843 1+ 060422 1640 1 060426 0650 1+ 060426 0833 2 060426 1227 1 060426 1357 1+ 060426 1453 1+ 060426 1702 1+ 060426 1828 1 060427 1552 2 060428 0828 2+ 060429 1630 1+ 060430 0931 1+ ************************************************** Importance Summary - Apr 2006 1- events: 0 1 events: 3 1+ events: 11 2 events: 4 2+ events: 1 3 events: 0 3+ events: 0 ------------------ Total events: 19