93.6380    4.7640                                lon, lat
 -100.0000  100.0000                              range (km)
    1.0000    1.0000    0.5000               dx, dy, dz (km)
       201       201        40                 x, y, z grids
  -99.0000 -199.0000                  undef: no data, shadow
 2017   11   23   14   30    0                          time