{"created":"2023-06-20T14:40:36.848967+00:00","id":7531,"links":{},"metadata":{"_buckets":{"deposit":"a6c5c12d-5762-4b1b-ac4a-0c4543ddd884"},"_deposit":{"created_by":1,"id":"7531","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"7531"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00007531","sets":["1543:1544:1557","1887:1891"]},"author_link":["40247","40241","40243","40248","40250","40244","40245","40242","40246","40249"],"item_5_alternative_title_1":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"はやぶさにおける小惑星接近とタッチダウンで行われた航法誘導運用の詳細"}]},"item_5_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2007-03","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"178","bibliographicPageStart":"173","bibliographic_titles":[{"bibliographic_title":"第16回アストロダイナミクスシンポジウム講演後刷り集　2006"},{"bibliographic_title":"Proceedings of 16th Workshop on JAXA Astrodynamics and Flight Mechanics","bibliographic_titleLang":"en"}]}]},"item_5_description_16":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"2005年11月、はやぶさ(MUSES-C: Asteroid Sample-return Spacecraft)は小惑星'いとかわ'へ5回の接近誘導を実施した。期待に反し、'いとかわ'表面はごつごつした岩で覆われ、はやぶさが安全にタッチダウンできる場所は数ヶ所しかなかった。しかも、実施前に姿勢制御装置が壊れてしまい、要求される精度での誘導は非常に難しかった。接近時の航法誘導は、搭載ソフトによる自動誘導と計画されていた。しかし、予想外にいびつな小惑星形状だった為、計画通りにいかなかった。一方、地上でリアルタイムに行う、地形参照による航法誘導が可能になり、精密な誘導が出来るようになった。本稿では、3回のタッチダウンと長時間着陸の成功に結びつけた、はやぶさプロジェクトチームによる新航法誘導ツールとその運用について述べる。","subitem_description_type":"Abstract"}]},"item_5_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"In November 2005, Hayabusa (MUSES-C: Asteroid Sample-return Spacecraft) performed descent flights to the Itokawa surface five times. The Itokawa surface is full of boulders against expectation and there are few flat areas where the spacecraft can touch down safely. With the reaction wheels lost prior to the events, it was very difficult to control translation motion accurately, since the guidance accuracy of several millimeters per second was requested. The guidance and navigation in descent phase was planned for autonomous guidance by OBS (OnBoard Software) before launch. However, it was not successful due to the highly irregular shape of the asteroid. On the other hand, the guidance and navigation on the ground based on the terrain recognition in quasi real time well worked. The Hayabusa project team devised and built the special tools on the ground and had tuned it before the successful three touch downs and one long landing on the surface.","subitem_description_type":"Other"}]},"item_5_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: AA0063481030","subitem_description_type":"Other"}]},"item_5_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"宇宙航空研究開発機構宇宙科学研究本部"}]},"item_5_publisher_9":{"attribute_name":"出版者（英）","attribute_value_mlt":[{"subitem_publisher":"Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA/ISAS)"}]},"item_5_text_6":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"NEC航空宇宙システム"},{"subitem_text_value":"NEC航空宇宙システム"},{"subitem_text_value":"宇宙航空研究開発機構 宇宙科学研究本部"},{"subitem_text_value":"宇宙航空研究開発機構 宇宙科学研究本部"},{"subitem_text_value":"宇宙航空研究開発機構 宇宙科学研究本部"}]},"item_5_text_7":{"attribute_name":"著者所属（英）","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"NEC Aerospace Systems Ltd."},{"subitem_text_language":"en","subitem_text_value":"NEC Aerospace Systems Ltd."},{"subitem_text_language":"en","subitem_text_value":"Japan Aerospace Exploration Agency Institute of Space and Astronautical Science"},{"subitem_text_language":"en","subitem_text_value":"Japan Aerospace Exploration Agency Institute of Space and Astronautical Science"},{"subitem_text_language":"en","subitem_text_value":"Japan Aerospace Exploration Agency Institute of Space and Astronautical Science"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"metadata only access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_14cb"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"森田, 秀郎"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"白川, 健一"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"久保田, 孝"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"橋本, 樹明"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"川口, 淳一郎"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Morita, Hideo","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Shirakawa, Kenichi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Kubota, Takashi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Hashimoto, Tatsuaki","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Kawaguchi, Junichiro","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"はやぶさ","subitem_subject_scheme":"Other"},{"subitem_subject":"MUSES-C","subitem_subject_scheme":"Other"},{"subitem_subject":"小惑星探査機","subitem_subject_scheme":"Other"},{"subitem_subject":"地表基準点航法","subitem_subject_scheme":"Other"},{"subitem_subject":"GCPNAV","subitem_subject_scheme":"Other"},{"subitem_subject":"衛星誘導","subitem_subject_scheme":"Other"},{"subitem_subject":"宇宙航行","subitem_subject_scheme":"Other"},{"subitem_subject":"タッチダウン","subitem_subject_scheme":"Other"},{"subitem_subject":"衛星制御","subitem_subject_scheme":"Other"},{"subitem_subject":"降下軌道","subitem_subject_scheme":"Other"},{"subitem_subject":"小惑星","subitem_subject_scheme":"Other"},{"subitem_subject":"光レーダ","subitem_subject_scheme":"Other"},{"subitem_subject":"降下","subitem_subject_scheme":"Other"},{"subitem_subject":"速度","subitem_subject_scheme":"Other"},{"subitem_subject":"位置誤差","subitem_subject_scheme":"Other"},{"subitem_subject":"Hayabusa","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"MUSES-C","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Asteroid Sample-return Spacecraft","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"ground control point navigation","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"GCPNAV","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"satellite guidance","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"space navigation","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"touchdown","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"satellite control","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"descent trajectory","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"asteroid","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"optical radar","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"descent","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"velocity","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"position error","subitem_subject_language":"en","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"conference paper","resourceuri":"http://purl.org/coar/resource_type/c_5794"}]},"item_title":"Detailed guidance and navigation operations during descents and touchdowns, Hayabusa","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Detailed guidance and navigation operations during descents and touchdowns, Hayabusa","subitem_title_language":"en"}]},"item_type_id":"5","owner":"1","path":["1557","1891"],"pubdate":{"attribute_name":"公開日","attribute_value":"2015-03-26"},"publish_date":"2015-03-26","publish_status":"0","recid":"7531","relation_version_is_last":true,"title":["Detailed guidance and navigation operations during descents and touchdowns, Hayabusa"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-21T07:38:04.380609+00:00"}