Argo    125.49520    224.12500 5901216 139      jma  D5901216_139.nc 
Argo    345.55319    255.09695 5903225 053    csiro  D5903225_053.nc 
Argo    349.44214    256.07611 5903225 052    csiro  D5903225_052.nc 
Argo    137.94037     52.44392 5903226 005    csiro  D5903226_005.nc