{"id":"https://openalex.org/W3119698471","doi":"https://doi.org/10.3390/s21020385","title":"Precise Orbit Determination of MEX Flyby Phobos Using Simulated Radiometric and Image Data","display_name":"Precise Orbit Determination of MEX Flyby Phobos Using Simulated Radiometric and Image Data","publication_year":2021,"publication_date":"2021-01-08","ids":{"openalex":"https://openalex.org/W3119698471","doi":"https://doi.org/10.3390/s21020385","mag":"3119698471","pmid":"https://pubmed.ncbi.nlm.nih.gov/33429856"},"language":"en","primary_location":{"id":"doi:10.3390/s21020385","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s21020385","pdf_url":"https://www.mdpi.com/1424-8220/21/2/385/pdf?version=1610599277","source":{"id":"https://openalex.org/S101949793","display_name":"Sensors","issn_l":"1424-8220","issn":["1424-8220"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sensors","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj","pubmed"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://www.mdpi.com/1424-8220/21/2/385/pdf?version=1610599277","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5104331171","display_name":"Xinbo Zhu","orcid":null},"institutions":[{"id":"https://openalex.org/I4210088244","display_name":"Shanghai Micro Satellite Engineering Center","ror":"https://ror.org/003cp7918","country_code":"CN","type":"nonprofit","lineage":["https://openalex.org/I4210088244"]},{"id":"https://openalex.org/I9842412","display_name":"Nanjing University of Aeronautics and Astronautics","ror":"https://ror.org/01scyh794","country_code":"CN","type":"education","lineage":["https://openalex.org/I9842412"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xinbo Zhu","raw_affiliation_strings":["Shanghai Institute of Satellite Engineer, Shanghai 201100, China","The college of astronautics, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Shanghai Institute of Satellite Engineer, Shanghai 201100, China","institution_ids":["https://openalex.org/I4210088244"]},{"raw_affiliation_string":"The college of astronautics, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China","institution_ids":["https://openalex.org/I9842412"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100396564","display_name":"Lu Liu","orcid":"https://orcid.org/0000-0003-4570-6368"},"institutions":[{"id":"https://openalex.org/I37461747","display_name":"Wuhan University","ror":"https://ror.org/033vjfk17","country_code":"CN","type":"education","lineage":["https://openalex.org/I37461747"]},{"id":"https://openalex.org/I4210118728","display_name":"State Key Laboratory of Information Engineering in Surveying Mapping and Remote Sensing","ror":"https://ror.org/02bpap860","country_code":"CN","type":"facility","lineage":["https://openalex.org/I4210118728"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Lu Liu","raw_affiliation_strings":["State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan 430070, China"],"raw_orcid":"https://orcid.org/0000-0003-4570-6368","affiliations":[{"raw_affiliation_string":"State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan 430070, China","institution_ids":["https://openalex.org/I4210118728","https://openalex.org/I37461747"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5034021327","display_name":"Suyan Liu","orcid":"https://orcid.org/0000-0003-0947-8222"},"institutions":[{"id":"https://openalex.org/I37461747","display_name":"Wuhan University","ror":"https://ror.org/033vjfk17","country_code":"CN","type":"education","lineage":["https://openalex.org/I37461747"]},{"id":"https://openalex.org/I4210118728","display_name":"State Key Laboratory of Information Engineering in Surveying Mapping and Remote Sensing","ror":"https://ror.org/02bpap860","country_code":"CN","type":"facility","lineage":["https://openalex.org/I4210118728"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Suyan Liu","raw_affiliation_strings":["State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan 430070, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan 430070, China","institution_ids":["https://openalex.org/I4210118728","https://openalex.org/I37461747"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101018158","display_name":"Pan Xie","orcid":null},"institutions":[{"id":"https://openalex.org/I4210088244","display_name":"Shanghai Micro Satellite Engineering Center","ror":"https://ror.org/003cp7918","country_code":"CN","type":"nonprofit","lineage":["https://openalex.org/I4210088244"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Pan Xie","raw_affiliation_strings":["Shanghai Institute of Satellite Engineer, Shanghai 201100, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Shanghai Institute of Satellite Engineer, Shanghai 201100, China","institution_ids":["https://openalex.org/I4210088244"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5088376988","display_name":"Wutong Gao","orcid":"https://orcid.org/0000-0001-8722-6923"},"institutions":[{"id":"https://openalex.org/I37461747","display_name":"Wuhan University","ror":"https://ror.org/033vjfk17","country_code":"CN","type":"education","lineage":["https://openalex.org/I37461747"]},{"id":"https://openalex.org/I4210118728","display_name":"State Key Laboratory of Information Engineering in Surveying Mapping and Remote Sensing","ror":"https://ror.org/02bpap860","country_code":"CN","type":"facility","lineage":["https://openalex.org/I4210118728"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Wutong Gao","raw_affiliation_strings":["State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan 430070, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan 430070, China","institution_ids":["https://openalex.org/I4210118728","https://openalex.org/I37461747"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5021354070","display_name":"Jianguo Yan","orcid":"https://orcid.org/0000-0003-2612-4776"},"institutions":[{"id":"https://openalex.org/I37461747","display_name":"Wuhan University","ror":"https://ror.org/033vjfk17","country_code":"CN","type":"education","lineage":["https://openalex.org/I37461747"]},{"id":"https://openalex.org/I4210118728","display_name":"State Key Laboratory of Information Engineering in Surveying Mapping and Remote Sensing","ror":"https://ror.org/02bpap860","country_code":"CN","type":"facility","lineage":["https://openalex.org/I4210118728"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jianguo Yan","raw_affiliation_strings":["State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan 430070, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan 430070, China","institution_ids":["https://openalex.org/I4210118728","https://openalex.org/I37461747"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5100396564"],"corresponding_institution_ids":["https://openalex.org/I37461747","https://openalex.org/I4210118728"],"apc_list":{"value":2400,"currency":"CHF","value_usd":2598},"apc_paid":{"value":2400,"currency":"CHF","value_usd":2598},"fwci":0.0,"has_fulltext":true,"cited_by_count":0,"citation_normalized_percentile":{"value":0.00891961,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"21","issue":"2","first_page":"385","last_page":"385"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10406","display_name":"Planetary Science and Exploration","score":1.0,"subfield":{"id":"https://openalex.org/subfields/3103","display_name":"Astronomy and Astrophysics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10406","display_name":"Planetary Science and Exploration","score":1.0,"subfield":{"id":"https://openalex.org/subfields/3103","display_name":"Astronomy and Astrophysics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10325","display_name":"Astro and Planetary Science","score":0.9998000264167786,"subfield":{"id":"https://openalex.org/subfields/3103","display_name":"Astronomy and Astrophysics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11701","display_name":"Space Satellite Systems and Control","score":0.9954000115394592,"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/spacecraft","display_name":"Spacecraft","score":0.8357099294662476},{"id":"https://openalex.org/keywords/orbit-determination","display_name":"Orbit determination","score":0.7493783831596375},{"id":"https://openalex.org/keywords/orbit","display_name":"Orbit (dynamics)","score":0.7389311194419861},{"id":"https://openalex.org/keywords/ephemeris","display_name":"Ephemeris","score":0.6940898895263672},{"id":"https://openalex.org/keywords/payload","display_name":"Payload (computing)","score":0.6776348352432251},{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.5595908761024475},{"id":"https://openalex.org/keywords/earths-orbit","display_name":"Earth's orbit","score":0.4144435524940491},{"id":"https://openalex.org/keywords/geology","display_name":"Geology","score":0.37394773960113525},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.36971789598464966},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.3612663745880127},{"id":"https://openalex.org/keywords/satellite","display_name":"Satellite","score":0.3150932788848877},{"id":"https://openalex.org/keywords/astronomy","display_name":"Astronomy","score":0.27152663469314575},{"id":"https://openalex.org/keywords/aerospace-engineering","display_name":"Aerospace engineering","score":0.21766623854637146}],"concepts":[{"id":"https://openalex.org/C29829512","wikidata":"https://www.wikidata.org/wiki/Q40218","display_name":"Spacecraft","level":2,"score":0.8357099294662476},{"id":"https://openalex.org/C107768556","wikidata":"https://www.wikidata.org/wiki/Q302660","display_name":"Orbit determination","level":3,"score":0.7493783831596375},{"id":"https://openalex.org/C196644772","wikidata":"https://www.wikidata.org/wiki/Q3884964","display_name":"Orbit (dynamics)","level":2,"score":0.7389311194419861},{"id":"https://openalex.org/C64828349","wikidata":"https://www.wikidata.org/wiki/Q120200","display_name":"Ephemeris","level":3,"score":0.6940898895263672},{"id":"https://openalex.org/C134066672","wikidata":"https://www.wikidata.org/wiki/Q1424639","display_name":"Payload (computing)","level":3,"score":0.6776348352432251},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.5595908761024475},{"id":"https://openalex.org/C71427050","wikidata":"https://www.wikidata.org/wiki/Q1348808","display_name":"Earth's orbit","level":3,"score":0.4144435524940491},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.37394773960113525},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.36971789598464966},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.3612663745880127},{"id":"https://openalex.org/C19269812","wikidata":"https://www.wikidata.org/wiki/Q26540","display_name":"Satellite","level":2,"score":0.3150932788848877},{"id":"https://openalex.org/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","level":1,"score":0.27152663469314575},{"id":"https://openalex.org/C146978453","wikidata":"https://www.wikidata.org/wiki/Q3798668","display_name":"Aerospace engineering","level":1,"score":0.21766623854637146},{"id":"https://openalex.org/C158379750","wikidata":"https://www.wikidata.org/wiki/Q214111","display_name":"Network packet","level":2,"score":0.0},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.0},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.0}],"mesh":[],"locations_count":6,"locations":[{"id":"doi:10.3390/s21020385","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s21020385","pdf_url":"https://www.mdpi.com/1424-8220/21/2/385/pdf?version=1610599277","source":{"id":"https://openalex.org/S101949793","display_name":"Sensors","issn_l":"1424-8220","issn":["1424-8220"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sensors","raw_type":"journal-article"},{"id":"pmid:33429856","is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/33429856","pdf_url":null,"source":{"id":"https://openalex.org/S4306525036","display_name":"PubMed","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sensors (Basel, Switzerland)","raw_type":null},{"id":"pmh:oai:doaj.org/article:5b8fb3ab96b54290908f5796520ee25b","is_oa":true,"landing_page_url":"https://doaj.org/article/5b8fb3ab96b54290908f5796520ee25b","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Sensors, Vol 21, Iss 2, p 385 (2021)","raw_type":"article"},{"id":"pmh:oai:europepmc.org:6732769","is_oa":true,"landing_page_url":"http://europepmc.org/pmc/articles/PMC7826677","pdf_url":null,"source":{"id":"https://openalex.org/S4306400806","display_name":"Europe PMC (PubMed Central)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1303153112","host_organization_name":"European Bioinformatics Institute","host_organization_lineage":["https://openalex.org/I1303153112"],"host_organization_lineage_names":[],"type":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Text"},{"id":"pmh:oai:mdpi.com:/1424-8220/21/2/385/","is_oa":true,"landing_page_url":"https://dx.doi.org/10.3390/s21020385","pdf_url":null,"source":{"id":"https://openalex.org/S4306400947","display_name":"MDPI (MDPI AG)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I4210097602","host_organization_name":"Multidisciplinary Digital Publishing Institute (Switzerland)","host_organization_lineage":["https://openalex.org/I4210097602"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Sensors; Volume 21; Issue 2; Pages: 385","raw_type":"Text"},{"id":"pmh:oai:pubmedcentral.nih.gov:7826677","is_oa":true,"landing_page_url":"https://www.ncbi.nlm.nih.gov/pmc/articles/7826677","pdf_url":null,"source":{"id":"https://openalex.org/S2764455111","display_name":"PubMed Central","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Sensors (Basel)","raw_type":"Text"}],"best_oa_location":{"id":"doi:10.3390/s21020385","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s21020385","pdf_url":"https://www.mdpi.com/1424-8220/21/2/385/pdf?version=1610599277","source":{"id":"https://openalex.org/S101949793","display_name":"Sensors","issn_l":"1424-8220","issn":["1424-8220"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sensors","raw_type":"journal-article"},"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G1995677205","display_name":null,"funder_award_id":"U1831132","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W3119698471.pdf","grobid_xml":"https://content.openalex.org/works/W3119698471.grobid-xml"},"referenced_works_count":30,"referenced_works":["https://openalex.org/W654330131","https://openalex.org/W1966732744","https://openalex.org/W1983079246","https://openalex.org/W1994335010","https://openalex.org/W2020714839","https://openalex.org/W2025257220","https://openalex.org/W2046694996","https://openalex.org/W2046854517","https://openalex.org/W2050600823","https://openalex.org/W2064844703","https://openalex.org/W2071524508","https://openalex.org/W2076413875","https://openalex.org/W2097364803","https://openalex.org/W2124364290","https://openalex.org/W2140393653","https://openalex.org/W2143186620","https://openalex.org/W2167032461","https://openalex.org/W2295336570","https://openalex.org/W2622592833","https://openalex.org/W2716589009","https://openalex.org/W2748466355","https://openalex.org/W2979567540","https://openalex.org/W2989588021","https://openalex.org/W3009531763","https://openalex.org/W3034735799","https://openalex.org/W3040706600","https://openalex.org/W4285719527","https://openalex.org/W4298365043","https://openalex.org/W6718057225","https://openalex.org/W6780361287"],"related_works":["https://openalex.org/W4377099179","https://openalex.org/W2049596291","https://openalex.org/W2371902865","https://openalex.org/W1967554369","https://openalex.org/W2079649661","https://openalex.org/W2009358203","https://openalex.org/W2061149446","https://openalex.org/W2370781830","https://openalex.org/W2377434744","https://openalex.org/W2067675846"],"abstract_inverted_index":{"A":[0],"navigation":[1],"camera":[2,5],"or":[3],"topography":[4],"is":[6],"a":[7,158],"standard":[8],"payload":[9],"for":[10,21,38,90,160],"deep":[11,39],"space":[12,40],"missions":[13],"and":[14,119,148],"the":[15,28,70,87,117,126,132,137,141,146],"image":[16,32,51,75,84,96,108,127,162],"data":[17,33,52,59,85,97,109,128,163],"are":[18],"normally":[19],"used":[20,63,130],"auto-navigation.":[22],"In":[23],"this":[24],"work,":[25],"we":[26,78],"study":[27],"potential":[29],"contribution":[30],"of":[31,55,69,102],"in":[34,64,72,98,116,131,145],"precise":[35,65,99],"orbit":[36,66,100,115,134,142,172],"determination":[37,67,101,135,143],"spacecraft.":[41,103],"The":[42],"Mars":[43],"Express":[44],"(MEX)":[45],"spacecraft":[46],"has":[47],"generated":[48],"extensive":[49],"Phobos":[50,139,167,177],"during":[53,136,165],"flybys":[54],"Phobos,":[56],"but":[57],"these":[58,74],"have":[60],"not":[61],"been":[62],"because":[68],"difficulty":[71],"employing":[73],"data.":[76,124],"Therefore,":[77],"did":[79],"an":[80],"experiment":[81],"using":[82],"simulated":[83],"as":[86,174,176],"first":[88],"step":[89],"exploring":[91],"how":[92],"to":[93,169],"use":[94],"real":[95,161],"Our":[104],"results":[105],"demonstrate":[106],"that":[107],"can":[110],"provide":[111,157],"stronger":[112],"constraints":[113],"on":[114],"tangential":[118,147],"normal":[120,149],"directions":[121,150],"than":[122],"Doppler":[123],"When":[125],"were":[129,151],"MEX":[133,138,166,171],"flyby,":[140],"accuracies":[144],"significantly":[152],"improved.":[153],"This":[154],"work":[155],"will":[156],"reference":[159],"processing":[164],"flyby":[168],"improve":[170],"accuracy":[173],"well":[175],"ephemeris":[178],"accuracy.":[179]},"counts_by_year":[],"updated_date":"2026-05-21T06:26:12.895304","created_date":"2025-10-10T00:00:00"}
