I_Cheon.      ic foF2  glat = 37.1 glon =127.5
Date of issue: 2025.05.02 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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250501  109_ 112_ 115_ 119_ 122_ 122_ 121_ 119_ 115_ 111_ 108_ 103_  97_  91_  87_  86_  87_  87_  84_  82_  84_  90_  98_ 104_ 
250502  108_ 111_ 114_ 118_ 120_ 122_ 121_ 118_ 115_ 110_ 107_ 102_  97_  91_  87_  86_  88_  88_  85_  82_  83_  90_  98_ 104_