*refresh the orbital elements in the astorb.dat database table*

        **Return:**
            - ``astorb``

        **Usage:**

            See class docstring

def refresh(self):
        """
        *refresh the orbital elements in the astorb.dat database table*

        **Return:**
            - ``astorb``

        **Usage:**

            See class docstring
        """
        self.log.info('starting the ``refresh`` method')

        astorbgz = self._download_astorb()
        astorbDictList = self._parse_astorb_database_file(astorbgz)
        self._import_astorb_to_database(astorbDictList)

        self.log.info('completed the ``refresh`` method')
        return None