docs: def reset_coord(self):
          """
          Reset the source location based on the init_skycoord values
          @return:
          """
          (x, y, idx) = self.world2pix(self.init_skycoord.ra,
                                       self.init_skycoord.dec,
                                       usepv=True)
          self.update_pixel_location((x, y), idx)