Return the raw true equator mean equinox (TEME) vectors from SGP4.

        Returns a tuple of NumPy arrays ``([x y z], [xdot ydot zdot])``
        expressed in kilometers and kilometers per second.  Note that we
        assume the TLE epoch to be a UTC date, per AIAA 2006-6753.

def _position_and_velocity_TEME_km(self, t):
        """Return the raw true equator mean equinox (TEME) vectors from SGP4.

        Returns a tuple of NumPy arrays ``([x y z], [xdot ydot zdot])``
        expressed in kilometers and kilometers per second.  Note that we
        assume the TLE epoch to be a UTC date, per AIAA 2006-6753.

        """
        sat = self.model
        minutes_past_epoch = (t._utc_float() - sat.jdsatepoch) * 1440.0
        if getattr(minutes_past_epoch, 'shape', None):
            position = []
            velocity = []
            error = []
            for m in minutes_past_epoch:
                p, v = sgp4(sat, m)
                position.append(p)
                velocity.append(v)
                error.append(sat.error_message)
            return array(position).T, array(velocity).T, error
        else:
            position, velocity = sgp4(sat, minutes_past_epoch)
            return array(position), array(velocity), sat.error_message