AAVSO Sudden Ionospheric Disturbance Report 
     April 1982
  
     Observers:
     A-01   A-09   A-19   A-26   A-28   
     A-31   A-43   A-48   A-49   A-50   
     A-51   A-52   A-54   A-55   A-56   
     
     YYMMDD      Event Peak (UT)   Importance
     820401         0225                1  
     820401         0604                1+ 
     820401         1141                1  
     820401         1623                2+ 
     820401         1937                3  
     820402         1545                1+ 
     820402         1601                1+ 
     820402         1708                1- 
     820402         1828                1- 
     820402         1938                1- 
     820403         0143                1+ 
     820403         0621                1- 
     820403         0507                2  
     820403         1452                1  
     820403         1500                1+ 
     820403         1840                1- 
     820403         1902                2+ 
     820403         2247                1- 
     820403         2308                1- 
     820404         0819                2+ 
     820404         1612                1+ 
     820404         1818                1- 
     820404         2134                1  
     820405         1630                2  
     820406         0615                1  
     820407         1705                1  
     820408         1759                1- 
     820409         0200                1+ 
     820409         1407                1  
     820409         1852                1- 
     820409         2223                1- 
     820409         2355                1- 
     820410         0245                1  
     820410         1708                1  
     820410         2345                1  
     820411         1307                1- 
     820411         1351                1  
     820411         1652                1+ 
     820411         1855                2+ 
     820411         2340                2  
     820412         1257                1  
     820412         1615                1- 
     820412         1833                1- 
     820412         1911                1  
     820413         1636                1  
     820413         1908                1- 
     820413         1943                1- 
     820414         0108                1  
     820414         0201                1  
     820414         0302                3  
     820414         0608                1+ 
     820416         1448                1  
     820416         2130                1+ 
     820417         0115                1- 
     820418         2305                1  
     820419         1815                3  
     820423         0147                1- 
     820428         1828                1- 
     820428         2112                1- 
     820429         1923                1- 
     *******************************************
     Importance Summary April 1982
        1- events:  22
        1  events:  18
        1+ events:  10
        2  events:  3
        2+ events:  4
        3  events:  3
        3+ events:  0
     Total events:  60