      filename       MISR product file

   the call:
   
      <B>status = MTK_FILE_COREMETADATA_QUERY( filename, nparams, paramlist )</B>
   
   returns:
   
      status         0 on success; otherwise failure
      nparams        number of coremetadata parameters
      paramlist      string array of all coremetadata parameter names

-Examples

      ;;
      ;; Set up input parameters
      ;;
      file        = '../Mtk_testdata/in/MISR_AM1_AS_LAND_P037_O029058_F06_0017.hdf'
      <B>status      = MTK_F