{"id":"https://openalex.org/W3133595342","doi":null,"title":"On the accuracy of international clock comparison by the USNO flying clock.","display_name":"On the accuracy of international clock comparison by the USNO flying clock.","publication_year":1971,"publication_date":"1971-01-01","ids":{"openalex":"https://openalex.org/W3133595342","mag":"3133595342"},"language":"en","primary_location":{"id":"mag:3133595342","doi":null,"is_oa":false,"landing_page_url":"http://ui.adsabs.harvard.edu/abs/1971TokRe..15..524T/abstract","pdf_url":null,"source":{"id":"https://openalex.org/S4306533030","display_name":"Tokyo Astronomical Observatory Reprints","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/P4310313392","host_organization_name":"Tokyo Astronomical Observatory (before 1938)","host_organization_lineage":["https://openalex.org/P4310313392"],"host_organization_lineage_names":["Tokyo Astronomical Observatory (before 1938)"],"type":"journal"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":"Tokyo Astronomical Observatory Reprints","raw_type":null},"volume":null,"type":"article","is_traditional":true,"indexed_in":[],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5023770651","display_name":"Masahisa Torao","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Masahisa TORAO","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5034739026","display_name":"K. Fujiwara","orcid":"https://orcid.org/0000-0002-4102-0943","observed_orcids":["https://orcid.org/0000-0002-4102-0943"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"K. Fujiwara","raw_affiliation_strings":[],"raw_orcid":"https://orcid.org/0000-0002-4102-0943","affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5013738678","display_name":"Shigetaka Iijima","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Shigetaka Iijima","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.40228582,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"15","issue":"58","first_page":"524","last_page":"542"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12004","display_name":"Advanced Frequency and Time Standards","score":0.9965999722480774,"subfield":{"id":"https://openalex.org/subfields/3107","display_name":"Atomic and Molecular Physics, and Optics"},"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/T12004","display_name":"Advanced Frequency and Time Standards","score":0.9965999722480774,"subfield":{"id":"https://openalex.org/subfields/3107","display_name":"Atomic and Molecular Physics, and Optics"},"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/T12216","display_name":"Network Time Synchronization Technologies","score":0.0008999999845400453,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10655","display_name":"GNSS positioning and interference","score":0.0006000000284984708,"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/clock-comparison","display_name":"clock comparison","score":0.6100000143051147},{"id":"https://openalex.org/keywords/u-s-naval-observatory","display_name":"U.S. Naval Observatory","score":0.6850000023841858},{"id":"https://openalex.org/keywords/timekeeping-accuracy","display_name":"timekeeping accuracy","score":0.6470000147819519},{"id":"https://openalex.org/keywords/atomic-clocks","display_name":"atomic clocks","score":0.5889999866485596},{"id":"https://openalex.org/keywords/time-transfer","display_name":"time transfer","score":0.34700000286102295}],"concepts":[{"id":"https://openalex.org/C65595194","wikidata":"https://www.wikidata.org/wiki/Q1000863","display_name":"Master clock","level":4,"score":0.4200523793697357},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.40411514043807983},{"id":"https://openalex.org/C13280743","wikidata":"https://www.wikidata.org/wiki/Q131089","display_name":"Geodesy","level":1,"score":0.3684900403022766},{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.32129988074302673},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.2586482763290405},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.2330327332019806},{"id":"https://openalex.org/C137059387","wikidata":"https://www.wikidata.org/wiki/Q426882","display_name":"Clock signal","level":3,"score":0.13834622502326965},{"id":"https://openalex.org/C134652429","wikidata":"https://www.wikidata.org/wiki/Q1052698","display_name":"Jitter","level":2,"score":0.09645739197731018}],"mesh":[],"locations_count":1,"locations":[{"id":"mag:3133595342","doi":null,"is_oa":false,"landing_page_url":"http://ui.adsabs.harvard.edu/abs/1971TokRe..15..524T/abstract","pdf_url":null,"source":{"id":"https://openalex.org/S4306533030","display_name":"Tokyo Astronomical Observatory Reprints","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/P4310313392","host_organization_name":"Tokyo Astronomical Observatory (before 1938)","host_organization_lineage":["https://openalex.org/P4310313392"],"host_organization_lineage_names":["Tokyo Astronomical Observatory (before 1938)"],"type":"journal"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":"Tokyo Astronomical Observatory Reprints","raw_type":null}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W415018403","https://openalex.org/W2994729462","https://openalex.org/W3068185420","https://openalex.org/W2993798446","https://openalex.org/W3082455206","https://openalex.org/W3106070900","https://openalex.org/W2990246626","https://openalex.org/W3128096029","https://openalex.org/W3022419597","https://openalex.org/W3161034167"],"abstract_inverted_index":null,"counts_by_year":[],"updated_date":"2026-10-12T09:40:04.860316","created_date":"2021-03-15T00:00:00"}
