Abstract: The various anisotropic spin interactions which can be represented by the rank two tensors are decomposed into isotropic, symmetric, and antisymmetric constituents. This paper deals with the NMR properties of the antisymmetric constituent of chemical shift interaction. The antisymmetric constituent under MAS effects both the line position and the linewidth in second order. This contribution together with the effect from nonsecular terms of symmetric constituent determines the ultimate resolution of MAS spectra. The powder pattern caused by the above two effects under MAS is calculated.