Parameters

 Keyword  Position  Type       Description
 -------  --------  ----       -----------
   MODE      1      CHAR       PIXel,SOUrce,CIRcle,POLygon,REGion
   CURR      -      LOGICAL    Use current region defined by
                               IREGION when in REGion mode
   RAD       -      REAL       exclusion radius
   XCENT     -      REAL       circle centre for keyboard mode
   YCENT     -      REAL                "            "
   LIST      -      CHAR       source list file
   RA        -      REAL       array of RAs
   DEC       -      REAL       array of DECs
   OUTSIDE   -      LOGICAL    exclude outside circle or polygon
       (Hidden default = NO)