Beijing.      bp TEC   glat = 40.0 glon =116.3
Date of issue: 2025.04.02 Time:14UT
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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250401  331  386  481  556  606  620  590  555  496  445  403  367  305  249  243  222  212  211  222  220  192  177  219  306
250402  371  445  508  568  619  642  630  597  561  521  462  385  311  262  237  226  221  225  228  218  195  184  214  286