{"id":"https://openalex.org/W4297950358","doi":null,"title":"1 Astrodynamics Science about Itokawa, Gravity and Ephemeris","display_name":"1 Astrodynamics Science about Itokawa, Gravity and Ephemeris","publication_year":2006,"publication_date":"2006-01-01","ids":{"openalex":"https://openalex.org/W4297950358"},"language":"en","primary_location":{"id":"pmh:oai:deepblue.lib.umich.edu:2027.42/76347","doi":null,"is_oa":true,"landing_page_url":"https://hdl.handle.net/2027.42/76347","pdf_url":"https://hdl.handle.net/2027.42/76347","source":{"id":"https://openalex.org/S4306400393","display_name":"Deep Blue (University of Michigan)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I27837315","host_organization_name":"University of Michigan","host_organization_lineage":["https://openalex.org/I27837315"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":[],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://hdl.handle.net/2027.42/76347","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5037460517","display_name":"Makoto Yoshikawa","orcid":"https://orcid.org/0000-0002-3118-7475","observed_orcids":["https://orcid.org/0000-0002-3118-7475"]},"institutions":[{"id":"https://openalex.org/I4210136277","display_name":"Institute of Space and Astronautical Science","ror":"https://ror.org/034gcgw60","country_code":"JP","type":"facility","lineage":["https://openalex.org/I2800865746","https://openalex.org/I4210136277"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Yoshikawa, Makoto","raw_affiliation_strings":["Associate Professor, Institute of Space and Astronautical Science. T"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Associate Professor, Institute of Space and Astronautical Science. T","institution_ids":["https://openalex.org/I4210136277"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5145296641","display_name":"Hitoshi Ikeda","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4405276078","display_name":"NEC Aerospace Systems, Ltd. (Japan)","ror":"https://ror.org/04sm2pv78","country_code":"JP","type":"company","lineage":["https://openalex.org/I4405276078"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Ikeda, Hitoshi","raw_affiliation_strings":["NEC Aerospace Systems Ltd , Yokohama , Kanagawa , 224-0053 , Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"NEC Aerospace Systems Ltd , Yokohama , Kanagawa , 224-0053 , Japan","institution_ids":["https://openalex.org/I4405276078"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5145442941","display_name":"Hajime Yano","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4405276078","display_name":"NEC Aerospace Systems, Ltd. (Japan)","ror":"https://ror.org/04sm2pv78","country_code":"JP","type":"company","lineage":["https://openalex.org/I4405276078"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Yano, Hajime","raw_affiliation_strings":["NEC Aerospace Systems Ltd , Yokohama , Kanagawa , 224-0053 , Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"NEC Aerospace Systems Ltd , Yokohama , Kanagawa , 224-0053 , Japan","institution_ids":["https://openalex.org/I4405276078"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101188933","display_name":"Jun Saito","orcid":"https://orcid.org/0009-0004-2862-1244","observed_orcids":["https://orcid.org/0009-0004-2862-1244"]},"institutions":[{"id":"https://openalex.org/I2800865746","display_name":"Japan Aerospace Exploration Agency","ror":"https://ror.org/059yhyy33","country_code":"JP","type":"facility","lineage":["https://openalex.org/I2800865746"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Saito, Jun","raw_affiliation_strings":["Japan Aerospace Exploration Agency , Sagamihara , Kanagawa , 229-8510 , Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Japan Aerospace Exploration Agency , Sagamihara , Kanagawa , 229-8510 , Japan","institution_ids":["https://openalex.org/I2800865746"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5105839416","display_name":"Takashi Kubota","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I2800865746","display_name":"Japan Aerospace Exploration Agency","ror":"https://ror.org/059yhyy33","country_code":"JP","type":"facility","lineage":["https://openalex.org/I2800865746"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Kubota, Takashi","raw_affiliation_strings":["Japan Aerospace Exploration Agency , Sagamihara , Kanagawa , 229-8510 , Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Japan Aerospace Exploration Agency , Sagamihara , Kanagawa , 229-8510 , Japan","institution_ids":["https://openalex.org/I2800865746"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5003437047","display_name":"Tatsuaki Hashimoto","orcid":"https://orcid.org/0000-0001-5035-6089","observed_orcids":["https://orcid.org/0000-0001-5035-6089"]},"institutions":[{"id":"https://openalex.org/I2800865746","display_name":"Japan Aerospace Exploration Agency","ror":"https://ror.org/059yhyy33","country_code":"JP","type":"facility","lineage":["https://openalex.org/I2800865746"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Hashimoto, Tatsuaki","raw_affiliation_strings":["Japan Aerospace Exploration Agency , Sagamihara , Kanagawa , 229-8510 , Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Japan Aerospace Exploration Agency , Sagamihara , Kanagawa , 229-8510 , Japan","institution_ids":["https://openalex.org/I2800865746"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5129008207","display_name":"Akira Fujiwara","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I2800865746","display_name":"Japan Aerospace Exploration Agency","ror":"https://ror.org/059yhyy33","country_code":"JP","type":"facility","lineage":["https://openalex.org/I2800865746"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Fujiwara, Akira","raw_affiliation_strings":["Japan Aerospace Exploration Agency , Sagamihara , Kanagawa , 229-8510 , Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Japan Aerospace Exploration Agency , Sagamihara , Kanagawa , 229-8510 , Japan","institution_ids":["https://openalex.org/I2800865746"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5031011918","display_name":"Jun\u2019ichiro Kawaguchi","orcid":"https://orcid.org/0000-0001-8196-5194","observed_orcids":["https://orcid.org/0000-0001-8196-5194"]},"institutions":[{"id":"https://openalex.org/I2800865746","display_name":"Japan Aerospace Exploration Agency","ror":"https://ror.org/059yhyy33","country_code":"JP","type":"facility","lineage":["https://openalex.org/I2800865746"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Kawaguchi, Jun'ichiro","raw_affiliation_strings":["Japan Aerospace Exploration Agency , Sagamihara , Kanagawa , 229-8510 , Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Japan Aerospace Exploration Agency , Sagamihara , Kanagawa , 229-8510 , Japan","institution_ids":["https://openalex.org/I2800865746"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5055705199","display_name":"Takashi Kominato","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I2252096349","display_name":"Fujitsu (Japan)","ror":"https://ror.org/038e2g226","country_code":"JP","type":"company","lineage":["https://openalex.org/I2252096349"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Kominato, Takashi","raw_affiliation_strings":["Fujitsu Ltd , Chiba , Chiba , 261-8588 , Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Fujitsu Ltd , Chiba , Chiba , 261-8588 , Japan","institution_ids":["https://openalex.org/I2252096349"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5103977375","display_name":"Masatoshi Matsuoka","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4405276078","display_name":"NEC Aerospace Systems, Ltd. (Japan)","ror":"https://ror.org/04sm2pv78","country_code":"JP","type":"company","lineage":["https://openalex.org/I4405276078"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Matsuoka, Masatoshi","raw_affiliation_strings":["NEC Aerospace Systems Ltd , Yokohama , Kanagawa , 224-0053 , Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"NEC Aerospace Systems Ltd , Yokohama , Kanagawa , 224-0053 , Japan","institution_ids":["https://openalex.org/I4405276078"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5085575317","display_name":"Kenichi Shirakawa","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4405276078","display_name":"NEC Aerospace Systems, Ltd. (Japan)","ror":"https://ror.org/04sm2pv78","country_code":"JP","type":"company","lineage":["https://openalex.org/I4405276078"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Shirakawa, Kenichi","raw_affiliation_strings":["NEC Aerospace Systems Ltd , Yokohama , Kanagawa , 224-0053 , Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"NEC Aerospace Systems Ltd , Yokohama , Kanagawa , 224-0053 , Japan","institution_ids":["https://openalex.org/I4405276078"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5108732588","display_name":"Takafumi Ohnishi","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I2252096349","display_name":"Fujitsu (Japan)","ror":"https://ror.org/038e2g226","country_code":"JP","type":"company","lineage":["https://openalex.org/I2252096349"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Ohnishi, Takafumi","raw_affiliation_strings":["Fujitsu Ltd , Chiba , Chiba , 261-8588 , Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Fujitsu Ltd , Chiba , Chiba , 261-8588 , Japan","institution_ids":["https://openalex.org/I2252096349"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5028169206","display_name":"Shinsuke Abe","orcid":"https://orcid.org/0000-0002-6247-4979","observed_orcids":["https://orcid.org/0000-0002-6247-4979"]},"institutions":[{"id":"https://openalex.org/I65837984","display_name":"Kobe University","ror":"https://ror.org/03tgsfw79","country_code":"JP","type":"education","lineage":["https://openalex.org/I65837984"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Abe, Shinsuke","raw_affiliation_strings":["Kobe University , Nada , Kobe , 657-8501 , Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Kobe University , Nada , Kobe , 657-8501 , Japan","institution_ids":["https://openalex.org/I65837984"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5019671358","display_name":"T. Mukai","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I65837984","display_name":"Kobe University","ror":"https://ror.org/03tgsfw79","country_code":"JP","type":"education","lineage":["https://openalex.org/I65837984"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Mukai, Tadashi","raw_affiliation_strings":["Kobe University , Nada , Kobe , 657-8501 , Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Kobe University , Nada , Kobe , 657-8501 , Japan","institution_ids":["https://openalex.org/I65837984"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5145427454","display_name":"Robert Gaskell","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I1334627681","display_name":"Jet Propulsion Laboratory","ror":"https://ror.org/027k65916","country_code":"US","type":"facility","lineage":["https://openalex.org/I122411786","https://openalex.org/I1334627681","https://openalex.org/I4210124779"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Gaskell, Robert","raw_affiliation_strings":["Jet Propulsion Laboratory , Pasadena , California , 91109"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Jet Propulsion Laboratory , Pasadena , California , 91109","institution_ids":["https://openalex.org/I1334627681"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5021928700","display_name":"Daniel J. Scheeres","orcid":"https://orcid.org/0000-0003-0558-3842","observed_orcids":["https://orcid.org/0000-0003-0558-3842"]},"institutions":[{"id":"https://openalex.org/I27837315","display_name":"University of Michigan","ror":"https://ror.org/00jmfr291","country_code":"US","type":"education","lineage":["https://openalex.org/I27837315"]},{"id":"https://openalex.org/I46020346","display_name":"American Institute of Aeronautics and Astronautics","ror":"https://ror.org/00a1rzv11","country_code":"US","type":"other","lineage":["https://openalex.org/I46020346"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Scheeres, Daniel J.","raw_affiliation_strings":["American Institute of Aeronautics and Astronautics","The University of Michigan , Ann Arbor , Michigan , 48109-2140"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"American Institute of Aeronautics and Astronautics","institution_ids":["https://openalex.org/I46020346"]},{"raw_affiliation_string":"The University of Michigan , Ann Arbor , Michigan , 48109-2140","institution_ids":["https://openalex.org/I27837315"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":8,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.2968,"has_fulltext":true,"cited_by_count":1,"citation_normalized_percentile":{"value":0.62887008,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10325","display_name":"Astro and Planetary Science","score":0.7612000107765198,"subfield":{"id":"https://openalex.org/subfields/1912","display_name":"Space and Planetary Science"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10325","display_name":"Astro and Planetary Science","score":0.7612000107765198,"subfield":{"id":"https://openalex.org/subfields/1912","display_name":"Space and Planetary Science"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11082","display_name":"Spacecraft Dynamics and Control","score":0.12229999899864197,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11701","display_name":"Space Satellite Systems and Control","score":0.06520000100135803,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/itokawa","display_name":"Itokawa","score":0.9380000233650208},{"id":"https://openalex.org/keywords/hayabusa","display_name":"Hayabusa","score":0.8309999704360962},{"id":"https://openalex.org/keywords/asteroid-mass-estimation","display_name":"asteroid mass estimation","score":0.9279999732971191},{"id":"https://openalex.org/keywords/asteroid-density","display_name":"asteroid density","score":0.9359999895095825},{"id":"https://openalex.org/keywords/ephemeris-accuracy","display_name":"ephemeris accuracy","score":0.8330000042915344},{"id":"https://openalex.org/keywords/orbital-mechanics","display_name":"orbital dynamics","score":0.6420000195503235},{"id":"https://openalex.org/keywords/near-earth-asteroids","display_name":"near-Earth asteroids","score":0.5630000233650208}],"concepts":[{"id":"https://openalex.org/C64828349","wikidata":"https://www.wikidata.org/wiki/Q120200","display_name":"Ephemeris","level":3,"score":0.86834317445755},{"id":"https://openalex.org/C13280743","wikidata":"https://www.wikidata.org/wiki/Q131089","display_name":"Geodesy","level":1,"score":0.4166072607040405},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.3942820429801941},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.31163448095321655},{"id":"https://openalex.org/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","level":1,"score":0.267696738243103},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.22069504857063293},{"id":"https://openalex.org/C19269812","wikidata":"https://www.wikidata.org/wiki/Q26540","display_name":"Satellite","level":2,"score":0.04820364713668823}],"mesh":[],"locations_count":2,"locations":[{"id":"pmh:oai:deepblue.lib.umich.edu:2027.42/76347","doi":null,"is_oa":true,"landing_page_url":"https://hdl.handle.net/2027.42/76347","pdf_url":"https://hdl.handle.net/2027.42/76347","source":{"id":"https://openalex.org/S4306400393","display_name":"Deep Blue (University of Michigan)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I27837315","host_organization_name":"University of Michigan","host_organization_lineage":["https://openalex.org/I27837315"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Article"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.1013.6591","doi":null,"is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1013.6591","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"https://deepblue.lib.umich.edu/bitstream/handle/2027.42/76347/AIAA-2006-6658-569.pdf%3Bjsessionid%3D0B51363554A2BE4EC6F72AEA7398730C?sequence%3D1","raw_type":"text"}],"best_oa_location":{"id":"pmh:oai:deepblue.lib.umich.edu:2027.42/76347","doi":null,"is_oa":true,"landing_page_url":"https://hdl.handle.net/2027.42/76347","pdf_url":"https://hdl.handle.net/2027.42/76347","source":{"id":"https://openalex.org/S4306400393","display_name":"Deep Blue (University of Michigan)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I27837315","host_organization_name":"University of Michigan","host_organization_lineage":["https://openalex.org/I27837315"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Article"},"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320332375","display_name":"Jet Propulsion Laboratory","ror":"https://ror.org/027k65916"}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W4297950358.pdf","grobid_xml":"https://content.openalex.org/works/W4297950358.grobid-xml"},"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W2127966212","https://openalex.org/W2948901474","https://openalex.org/W3186968877","https://openalex.org/W7100909535","https://openalex.org/W642611558","https://openalex.org/W564409381","https://openalex.org/W7029356682","https://openalex.org/W4231558448","https://openalex.org/W7100453527","https://openalex.org/W2734466583"],"abstract_inverted_index":{"Hayabusa":[0],"was":[1],"moving":[2],"near":[3],"Asteroid":[4],"Itokawa":[5,36,51,64],"for":[6,37],"about":[7],"three":[8],"months":[9],"in":[10,44],"2005.Using":[11],"tracking":[12],"and":[13,24],"navigation":[14,29],"data":[15],"such":[16],"as":[17,67],"range,":[18],"Doppler,":[19],"distance":[20],"from":[21,59],"the":[22,33,61,77,82,91,94],"asteroid,":[23],"optical":[25],"images":[26],"taken":[27],"by":[28],"cameras,":[30],"we":[31],"estimated":[32,48],"mass":[34,49],"of":[35,50,63,76,84,93,96],"several":[38],"orbital":[39],"phases.The":[40],"results":[41],"are":[42,86],"consistent":[43],"their":[45],"error":[46],"ranges.The":[47],"is":[52,65,74],"3.51":[53],"\u00b1":[54,69],"0.105":[55],"(10":[56],"10":[57],"kg),":[58],"which":[60],"density":[62],"derived":[66],"1.9":[68],"0.13":[70],"(g/cm":[71],"3":[72],").This":[73],"one":[75],"important":[78],"characteristics":[79],"to":[80,89],"understand":[81],"nature":[83],"Itokawa.We":[85],"also":[87],"trying":[88],"investigate":[90],"accuracy":[92],"ephemeris":[95],"this":[97],"asteroid.":[98]},"counts_by_year":[],"updated_date":"2026-11-08T12:12:28.789561","created_date":"2022-10-01T00:00:00"}
