Grahamstown.  TauTEC   glat =-33.3 glon = 26.5                                                                                  
Date of issue: 2025.05.03 Time:13UT                                                                                             
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  350  327  301  323  218  194  351  348  343  335  332  329  327  326  333  337  347  352  342  346  339  343  333  333
250502  387  349  314  340  254  242  328  331  337  339  337  337  340  335  334  328  333  340  347  362  361  360  369  363
250503  504  504  533  582  504  393  358  338  332  331  331  330  332  335  334  339  348  365  410  451  486  489  513  513