{"created":"2025-01-31T05:00:05.553838+00:00","id":2001430,"links":{},"metadata":{"_buckets":{"deposit":"5f274cf7-1ad7-45e3-8067-6c3af91b7bf0"},"_deposit":{"created_by":101,"id":"2001430","owner":"101","owners":[101],"pid":{"revision_id":0,"type":"depid","value":"2001430"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:02001430","sets":["1543:1827:1736319533546","1887:1891"]},"author_link":[],"item_1692869180903":{"attribute_name":"会議概要","attribute_value_mlt":[{"subitem_conference_country":"JPN","subitem_conference_date":{"subitem_conference_date_language":"ja","subitem_conference_period":"2024-10-28 - 2024-10-30"},"subitem_conference_names":[{"subitem_conference_name":"The 11th Space Debris Workshop","subitem_conference_name_language":"en"},{"subitem_conference_name":"第11回スペースデブリワークショップ","subitem_conference_name_language":"ja"}],"subitem_conference_places":[{"subitem_conference_place":"Chofu, Tokyo (Hybrid)","subitem_conference_place_language":"en"},{"subitem_conference_place":"調布市, 東京 (ハイブリッド)","subitem_conference_place_language":"ja"}],"subitem_conference_sponsors":[{"subitem_conference_sponsor":"Research and Development Directorate, Japan Aerospace Exploration Agency (JAXA)","subitem_conference_sponsor_language":"en"},{"subitem_conference_sponsor":"宇宙航空研究開発機構研究開発部門 (JAXA)","subitem_conference_sponsor_language":"ja"}],"subitem_conference_venues":[{"subitem_conference_venue":"Chofu Aerospace Center, Japan Aerospace Exploration Agency (JAXA)(CAC)","subitem_conference_venue_language":"en"},{"subitem_conference_venue":"宇宙航空研究開発機構調布航空宇宙センター(JAXA)(CAC)","subitem_conference_venue_language":"ja"}]}]},"item_1692929429513":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"In low Earth orbit(LEO), over a million of small/medium space debris objects are estimated to exist. A laser-based active debris removal for such objects has been proposed. One challenging problem of this method is to focus a high power laser on the debris surface. If the laser is irradiated from the ground, the target is 400 km above and flies at 8 km/s. To solve this problem, highly accurate orbit prediction is necessary. In addition, it must also be ensured that the debris will fall to Earth certainly within a short period of time after deorbiting. In the presentation, we will describe analytical methods for trajectory calculations to answer these questions and show some specific results. Our analysis method guarantees that the laser will always be able to focus on the debris surface. For example, a computational method is realized which confines the orbital prediction error can be less than 1 cm within 10 seconds after finding the debris.In low Earth orbit(LEO), over a million of small/medium space debris objects are estimated to exist. A laser-based active debris removal for such objects has been proposed. One challenging problem of this method is to focus a high power laser on the debris surface. If the laser is irradiated from the ground, the target is 400 km above and flies at 8 km/s. To solve this problem, highly accurate orbit prediction is necessary. In addition, it must also be ensured that the debris will fall to Earth certainly within a short period of time after deorbiting. In the presentation, we will describe analytical methods for trajectory calculations to answer these questions and show some specific results. Our analysis method guarantees that the laser will always be able to focus on the debris surface. For example, a computational method is realized which confines the orbital prediction error can be less than 1 cm within 10 seconds after finding the debris.","subitem_description_language":"en","subitem_description_type":"Other"},{"subitem_description":"低軌道(LEO)には、10cm 未満の小型/中型のデブリ(lethal non-trackable, LNT)が数100 万個あると推定されている。地上もしくは軌道上に配置したレーザーを用いて、LNT を除去する方法が提案されている。これを実現するための大きな問題は、十分な強度のレーザーをデブリの表面に集光することである。仮に地上からレーザーを照射する場合、高度400km を秒速8km で飛行する、直径10cm の対象に集光する必要がある。これを可能にするためにcm オーダーでの軌道予測が要求される。しかし、大気の影響や太陽の光圧など、定量化が困難な摂動の影響も考慮する必要がある。また、軌道変更後のデブリが、短時間のうちに確実に地球に落下することも保証せねばならない。本講演では、これらの問題に答えるための軌道計算の解析手法を述べ、具体的な計算例を示す。我々の解析手法はレーザーがデブリ表面に必ず集光できることを保証する。例えば、デブリ発見から10 秒後の軌道予測の誤差を1cm に抑える計算手法を構築した。","subitem_description_language":"ja","subitem_description_type":"Other"}]},"item_1692929640552":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"Physical  characteristics: Original contains color illustrations","subitem_description_language":"en","subitem_description_type":"Other"},{"subitem_description":"形態: カラー図版あり","subitem_description_language":"ja","subitem_description_type":"Other"}]},"item_1693474141533":{"attribute_name":"item_1693474141533","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"資料番号: AA2430008052","subitem_relation_type_select":"Local"}}]},"item_1695282775758":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"Osaka University"},{"subitem_text_language":"en","subitem_text_value":"Coherent Systems Co., Ltd."},{"subitem_text_language":"ja","subitem_text_value":"大阪大学"},{"subitem_text_language":"ja","subitem_text_value":"株式会社コヒーレントシステムズ"}]},"item_3_biblio_info_10":{"attribute_name":"bibliographic_information","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2025-01-31","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"542","bibliographicPageStart":"541","bibliographic_titles":[{"bibliographic_title":"Proceedings of the 11th Space debris Workshop","bibliographic_titleLang":"en"},{"bibliographic_title":"第11回スペースデブリワークショップ講演資料集","bibliographic_titleLang":"ja"}]}]},"item_3_identifier_registration":{"attribute_name":"identifier_registration","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.20637/0002001430","subitem_identifier_reg_type":"JaLC"}]},"item_3_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"Japan Aerospace Exploration Agency (JAXA)","subitem_publisher_language":"en"},{"subitem_publisher":"宇宙航空研究開発機構 (JAXA)","subitem_publisher_language":"ja"}]},"item_3_version_type_30":{"attribute_name":"出版タイプ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"open access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_abf2"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorAffiliations":[{"affiliationNames":[{"affiliationName":"Osaka University","affiliationNameLang":"en"},{"affiliationName":"大阪大学","affiliationNameLang":"ja"}]}],"creatorNames":[{"creatorName":"SHIBATA, Kazunori","creatorNameLang":"en"},{"creatorName":"柴田, 一範","creatorNameLang":"ja"}]},{"creatorAffiliations":[{"affiliationNames":[{"affiliationName":"Coherent Systems Co., Ltd.","affiliationNameLang":"en"},{"affiliationName":"株式会社コヒーレントシステムズ","affiliationNameLang":"ja"}]}],"creatorNames":[{"creatorName":"UCHIDA, Shigeaki","creatorNameLang":"en"},{"creatorName":"内田, 成明","creatorNameLang":"ja"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_access","date":[{"dateType":"Available","dateValue":"2025-01-31"}],"filename":"AA2430008052.pdf","filesize":[{"value":"2 MB"}],"format":"application/pdf","url":{"url":"https://jaxa.repo.nii.ac.jp/record/2001430/files/AA2430008052.pdf"},"version_id":"e276e5ed-5231-4ac1-b686-0a526f5976f6"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"item_resource_type","attribute_value_mlt":[{"resourcetype":"conference paper","resourceuri":"http://purl.org/coar/resource_type/c_5794"}]},"item_title":"High-precision Trajectory Calculation of Small/medium Sized Orbital Objects Realizing Laser Active Debris Removal","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"High-precision Trajectory Calculation of Small/medium Sized Orbital Objects Realizing Laser Active Debris Removal","subitem_title_language":"en"},{"subitem_title":"レーザーを⽤いた小型/中型デブリの除去を実現するための高精度軌道計算","subitem_title_language":"ja"}]},"item_type_id":"40008","owner":"101","path":["1736319533546","1891"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2025-01-31"},"publish_date":"2025-01-31","publish_status":"0","recid":"2001430","relation_version_is_last":true,"title":["High-precision Trajectory Calculation of Small/medium Sized Orbital Objects Realizing Laser Active Debris Removal"],"weko_creator_id":"101","weko_shared_id":-1},"updated":"2025-01-31T06:16:38.628646+00:00"}