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Kolobok crater and environs, Ryugu At 240 meters in diameter, Kolobok is one of Ryugu's largest craters. It is located on the equator at 1.5°S and 333.5°E. Several other smaller craters are located on or near its rim. Above and slightly to the right of it, most of it in deep shadow, is another large crater, Cendrillon. JAXA, University of Tokyo, Kochi University, Rikkyo University, Nagoya University, Chiba Institute of Technology, Meiji University, University of Aizu, AIST