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)