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                  WARNING FROM THE PTOOLS PACKAGE LOADER                       
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      The  SDAS  external package TABLES required by some of the PTOOLS
      tasks is not available.  The tasks TBAPPEND,  TBDUMP, TBRENUMBER,
      TBSELECT,  and  TBSORT  will not run.   The tasks PAPPEND, PDUMP,
      PRENUMBER,  PSELECT  and  PSORT will run  only on  APPHOT/DAOPHOT
      output  files  written  in the default text format,  not on files
      written in ST tables format.