cast  station  date_start_utc  time_start_utc  event_start         lat_start    lon_start     niskin  depth      press     bots  PO4      NO3_NO2   silicate  NO2      NH4      NPOC              TN                
43    15       20130418        1731            20130418.1731.001   -2.699512    -28.502444    21      749.976    755.502   21    2.4334   35.2964   29.3748   0.0097   0.02     47.1880086576731  38.0799704670812