I_Cheon.      ic foF2  glat = 37.1 glon =127.5
Date of issue: 2026.05.04 Time:10UT
YYMMDD|UT 0    1    2    3    4    5    6    7    8    9   10   11   12   13   14   15   16   17   18   19   20   21   22   23
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260501   75   71   91   94   98   91   99  110   92   80   76   78   78   77   72   67   59   58   56   57   58   79   93   91  
260502   83   85   83   93   94   99  107  110   96   86   89   94   79   73   72   66   68   65   47   63   50   68   81   81  
260503   78   85   84   92   90   96  100  106   99   91   89   86   82   72   70   42   64   60   52   52   57   70   82   84  
260504   88   84   81   89   99  104_ 106_ 104_  97_  91_  88_  87_  84_  78_  73_  70_  70_  69_  67_  66_  69_  75_  81_  85_