{"created":"2023-06-20T14:40:39.946608+00:00","id":7583,"links":{},"metadata":{"_buckets":{"deposit":"6a7948ee-9188-404c-a5db-f52fa3764900"},"_deposit":{"created_by":1,"id":"7583","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"7583"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00007583","sets":["1543:1544:1558","1887:1891"]},"author_link":["40577","40572","40571","40573","40570","40575","40574","40576"],"item_5_alternative_title_1":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"小惑星到着直前のはやぶさ軌道決定解析"}]},"item_5_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2006-03","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"116","bibliographicPageStart":"113","bibliographic_titles":[{"bibliographic_title":"第15回アストロダイナミクスシンポジウム講演後刷り集　2005"},{"bibliographic_title":"Proceedings of 15th Workshop on JAXA Astrodynamics and Flight Mechanics","bibliographic_titleLang":"en"}]}]},"item_5_description_16":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"「はやぶさ(MUSES-C: Asteroid Sample-return Spacecraft)」の軌道は小惑星到着に先立って2005年7月をセンターとする'合'(地球からみて探査機と太陽の離角が小さくなる)期間が存在している。この'合'となる2週間程度の期間は、ソーラーコロナが探査機通信信号に大きな影響を及ぼすため、衛星運用が休止となる。また、この期間の前後においては、追跡データの精度が劣化するため、軌道決定精度は著しく低下する。著者らは、「のぞみ(PLANET-B: Mars Orbiter)」の'合'で得られた追跡データと「はやぶさ」の'合'において取得された追跡データについて、両探査機の使用周波数帯の違いを考慮した上で、比較評価した。「はやぶさ」は小惑星へ接近するにあたって、機上搭載カメラによる小惑星撮影を行ない、この光学情報に基づいて探査機から見た小惑星の方向を求め、探査機の位置決定を行なう。光学情報を併用することによって、通常の電波データのみによる場合に比べて、軌道決定精度は飛躍的に向上する。","subitem_description_type":"Abstract"}]},"item_5_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"Hayabusa (MUSES-C: Asteroid Sample-return Spacecraft) had an operation gap for two weeks before arrival at Itokawa because of conjunction. Orbit determination could be performed using radiometric data on coasting period both before and after the conjunction, but observed data noise increases around the conjunction because of influence by solar corona. Therefore, we have to take it into account on our orbit determination analysis. We evaluated the amount of Doppler noise around the conjunction, and compared it with Doppler noise of Nozomi's (PLANET-B: Mars Orbiter) conjunction, where we consider difference of bands the spacecraft use. Hybrid navigation using optical and radiometric observables was performed after the conjunction, and the spacecraft approached to the target asteroid using ion propulsion according to the solution. We also mention about the hybrid orbit determination in this report.","subitem_description_type":"Other"}]},"item_5_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: AA0063480018","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":"富士通"},{"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":"Fujitsu 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":"大西, 隆史"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"吉川, 真"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"加藤, 隆二"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"市川, 勉"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Onishi, Takafumi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Yoshikawa, Makoto","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Kato, Takaji","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Ichikawa, Tsutomu","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"軌道決定","subitem_subject_scheme":"Other"},{"subitem_subject":"ナビゲーション","subitem_subject_scheme":"Other"},{"subitem_subject":"小惑星ミッション","subitem_subject_scheme":"Other"},{"subitem_subject":"はやぶさ","subitem_subject_scheme":"Other"},{"subitem_subject":"MUSES-C","subitem_subject_scheme":"Other"},{"subitem_subject":"ミュー・ロケットで打ち上げる工学実験探査機","subitem_subject_scheme":"Other"},{"subitem_subject":"イトカワ","subitem_subject_scheme":"Other"},{"subitem_subject":"太陽食","subitem_subject_scheme":"Other"},{"subitem_subject":"掩蔽","subitem_subject_scheme":"Other"},{"subitem_subject":"衛星追跡","subitem_subject_scheme":"Other"},{"subitem_subject":"スタートラッカ","subitem_subject_scheme":"Other"},{"subitem_subject":"軌道位置推定","subitem_subject_scheme":"Other"},{"subitem_subject":"精度","subitem_subject_scheme":"Other"},{"subitem_subject":"軌道","subitem_subject_scheme":"Other"},{"subitem_subject":"ドップラー効果","subitem_subject_scheme":"Other"},{"subitem_subject":"orbit determination","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"navigation","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"asteroid mission","subitem_subject_language":"en","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":"Mu Space Engineering Spacecraft","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Itokawa","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"solar conjunction","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"occultation","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"satellite tracking","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"star tracker","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"orbital position estimation","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"accuracy","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"trajectory","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Doppler effect","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":"Hayabusa orbit determination analysis just before the rendezvous with Itokawa","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Hayabusa orbit determination analysis just before the rendezvous with Itokawa","subitem_title_language":"en"}]},"item_type_id":"5","owner":"1","path":["1558","1891"],"pubdate":{"attribute_name":"公開日","attribute_value":"2015-03-26"},"publish_date":"2015-03-26","publish_status":"0","recid":"7583","relation_version_is_last":true,"title":["Hayabusa orbit determination analysis just before the rendezvous with Itokawa"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-21T07:37:16.018061+00:00"}