Surface heterogeneity of 2005 UD from photometric observations D. Kinoshita, K. Ohtsuka, T. Sekiguchi, J. Watanabe, T. Ito, H. Arakida, T. Kasuga, S. Miyasaka, R. Nakamura and H.-C. Lin A&A, 466 3 (2007) 1153-1158 Published online: 24 April 2007 DOI: 10.1051/0004-6361:20066276