def _tle_to_keplerian_mean(cls, coord, center):
        """Conversion from the TLE standard format to the Mean Keplerian

        see :py:class:`Tle` for more information.
        """
        i, Ω, e, ω, M, n = coord
        a = (center.µ / n ** 2) ** (1 / 3)

        return np.array([a, e, i, Ω, ω, M], dtype=float)
Conversion from the TLE standard format to the Mean Keplerian

        see :py:class:`Tle` for more information.