AAVSO Sudden Ionospheric Disturbance Report 
     May 1997

     Observers:
     A-05   A-09   A-40   A-50  A-52
     A-63   A-69   A-80   A-81  A-84

     YYMMDD      Event Peak (UT)   Importance
     970521         2009                3  
     970527         0944                1  
     970527         1554                1  
     *******************************************
     Importance Summary May 1997
        1- events:  0
        1  events:  2
        1+ events:  0
        2  events:  0
        2+ events:  0
        3  events:  1
        3+ events:  0
     Total events:  3