Yamagawa.     yg TEC   glat = 29.2 glon =129.6
Date of issue: 2026.10.02 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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261001  189  196  207  251  316  346  367  337  299  277  223  167  138  143  131  116  125  130  123  127  116  116  138  167
261002  202  213  242  294  342  355  335  310  292  268  225  175  144  138  139  133  128  129  131  122  110  116  147  183