code: def coordinate_system(self, coordsys):
          
          if coordsys.upper() == "ENU":
              ncs = 0
          elif coordsys.upper() == "XYZ":
              ncs = 1
          elif coordsys.upper() == "BEAM":
              ncs = 2
          elif coordsys in [0, 1, 2]:
              ncs = coordsys
          else:
              raise ValueError("Invalid coordinate system selection")
          self.pdx.CoordinateSystem = ncs
docs: Sets instrument coordinate system. Accepts an int or string.