{"paper":{"title":"The spatial distribution of impact craters on Ryugu","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Atsushi Fujii, Chikatoshi Honda, Eri Tatsumi, Fuyuto Terui, Go Ono, Hidehiko Suzuki, Hiroshi Takeuchi, Hirotaka Sawada, Kazunori Ogawa, Kazuo Yoshioka, Kei Shirai, Kent Yoshikawa, Makoto Yoshikawa, Mamabu Yamada, Masahiko Hayakawa, Masanori Kanamaru, Moe Matsuoka, Naoko Ogawa, Naoya Sakatani, Naoyuki Hirata, Naru Hirata, Rie Honda, Rina Noguchi, Satoru Nakazawa, Satoshi Tanaka, Sei-ichiro Watanabe, Seiji Sugita, Shingo Kameda, Shota Kikuchi, Tadateru Takahashi, Takanao Saiki, Tatsuaki Okada, Tomohiro Yamaguchi, Tomokatsu Morota, Toru Kouyama, Yasuhiro Yokota, Yu-ichi Iijima, Yuichiro Cho, Yuichi Tsuda, Yukio Yamamoto, Yuri Shimaki, Yuto Takei, Yuya Mimasu","submitted_at":"2022-05-12T00:56:39Z","abstract_excerpt":"Asteroid 162173 Ryugu has numerous craters. The initial measurement of impact craters on Ryugu, by Sugita et al. (2019), is based on Hayabusa2 ONC images obtained during the first month after the arrival of Hayabusa2 in June 2018. Utilizing new images taken until February 2019, we constructed a global impact crater catalogue of Ryugu, which includes all craters larger than 20 m in diameter on the surface of Ryugu. As a result, we identified 77 craters on the surface of Ryugu. Ryugu shows variation in crater density which cannot be explained by the randomness of cratering; there are more crater"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2205.05818","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2205.05818/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}