我們探索了特殊正交坐標系的實用性,它被期望會給出一個有較佳之物理理解的描述,尤其是在能量與其局域化間的聯繫。我們考慮了一個具有時間對稱和軸對稱的Brill波加上黑洞時空的初值資料,使用數值技術,我們找出了相關的特殊正交坐標系、相關的特殊函數以及ADM質量的微小修正。 We explore the practical usefulness of the idea of Special Orthonormal Frames, which are supposed to give a representation that would give a better physical understanding especially in connection with energy and its localization. We consider the initial data for a time symmetric, axisymmetric Brill wave plus black hole spacetime. Using numerical techniques, we find the associated special orthonormal frame, the associated special function and the resultant small corrections to the ADM mass.