AAVSO Sudden Ionospheric Disturbance Report 
     February 1998

     Observers:
     A-05   A-09   A-50   A-52   A-62
     A-63   A-72   A-80   A-81   A-82
     A-84   A-87

     YYMMDD      Event Peak (UT)   Importance
     980204         1756                1- 
     980215         1138                1+ 
     980215         1834                1+ 
     980217         0955                1- 
     980218         0924                1- 
     980218         1139                2  
     980218         1224                1  
     980219         1457                1  
     980219         1704                1- 
     980219         1929                1- 
     980220         1743                1  
     980222         1646                1- 
     *******************************************
     Importance Summary February 1998
        1- events:  6
        1  events:  3
        1+ events:  2
        2  events:  1
        2+ events:  0
        3  events:  0
        3+ events:  0
     Total events:  12