@classmethod
def reconstruct_common(cls, t, x, y, z=None, initial=None):
    """Reconstruct shower angles

        :param t: detector arrival time in ns.
        :param x,y: positions of detectors in m.
        :param z: height of detectors in m.
        :param initial: dictionary containing values from previous
                        reconstructions.
        :return: reconstructed theta and phi angles.

        """
    return cls.reconstruct()
