@property<EOL><INDENT>def epoch(self):<DEDENT>
try:<EOL><INDENT>return Time(self._epoch, format='<STR_LIT>')<EOL><DEDENT>except AttributeError:<EOL><INDENT>return None<EOL><DEDENT>
Starting GPS time epoch for these `Bits`.

        This attribute is recorded as a `~astropy.time.Time` object in the
        GPS format, allowing native conversion into other formats.

        See :mod:`~astropy.time` for details on the `Time` object.