Parameters

 Keyword  Position  Type       Description
 -------  --------  ----       -----------
 INP         1      CHAR       Name of first S2 catalogue
      -GLOBAL.S2CAT ( Default S2 catalogue )
 OUT         2      CHAR       Name of second S2 catalogue
      ->GLOBAL.S2CAT ( Default S2 catalogue )
 DELETE      -      LOGICAL    Remove sources with DELETE flag set
 DOUBTFUL    -      LOGICAL    Remove sources with DOUBTFUL flag set
 SPURIOUS    -      LOGICAL    Remove sources with SPURIOUS flag set
 USER1       -      LOGICAL    Remove sources with USER1 flag set
  ...       ...       ...               ...        ...
 USER8       -      LOGICAL    Remove sources with USER8 flag set
 XCOR        -      LOGICAL    Reset all catalogue correlation data
 All logicals have a default of N.