Grahamstown.  gr TEC   glat =-33.3 glon = 26.5
Date of issue: 2025.05.04 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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250501   84   75   69   74   73  128  232  357  442  540  573  578  613  622  584  506  349  202  119  103  101   98   95   95  
250502   93   80   72   78   85  160  294  394  479  547  563  553  567  512  423  337  226  123   91   83   79   75   66   65  
250503   74   63   60   65   63  111  231  378  491  567  550  540  572  519  431  336  208  100   77   69   58   52   49   51
250504   77   78   70   61   75  135  236  355  460  529  562  573  571  549  491  392  272  168  105   82   79   76   70   71