Low-inclination Near-Earth Asteroid ( 297274 ) 1996 SK , which is also classified as a Potentially Hazardous Asteroid , has a highly eccentric orbit .
It was studied by multi-wavelength photometry within the framework of an NEA color survey at the Lulin Observatory .
We report here the finding of large color variation across the surface of ( 297274 ) 1996 SK within one asteroidal rotation period of 4.656 \pm 0.122 hours and classify it as a S-type asteroid according to its average colors of B - V = 0.767 \pm 0.033 , V - R = 0.482 \pm 0.021 , V - I = 0.801 \pm 0.025 and the corresponding relative reflectance spectrum .
It might be indicative of differential space weathering effect or compositional inhomogeneity of the surface materials .