{"id":"https://openalex.org/W2060070533","doi":"https://doi.org/10.2514/3.3622","title":"On time-dependent coverage areas of Comsats in elliptic orbits.","display_name":"On time-dependent coverage areas of Comsats in elliptic orbits.","publication_year":1966,"publication_date":"1966-06-01","ids":{"openalex":"https://openalex.org/W2060070533","doi":"https://doi.org/10.2514/3.3622","mag":"2060070533"},"language":"en","primary_location":{"id":"doi:10.2514/3.3622","doi":"https://doi.org/10.2514/3.3622","is_oa":false,"landing_page_url":"https://doi.org/10.2514/3.3622","pdf_url":null,"source":{"id":"https://openalex.org/S53336109","display_name":"AIAA Journal","issn_l":"0001-1452","issn":["0001-1452","1081-0102","1533-385X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-a","jufo-1","norway-2","poland-140","russia-white-list-1"],"host_organization":"https://openalex.org/P4310315709","host_organization_name":"American Institute of Aeronautics and Astronautics","host_organization_lineage":["https://openalex.org/P4310315709"],"host_organization_lineage_names":["American Institute of Aeronautics and Astronautics"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"AIAA Journal","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref"],"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/A5008344128","display_name":"Iwao Sugai","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"IWAO SUGAI","raw_affiliation_strings":["System Sciences Corporation, Falls Church, Va"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"System Sciences Corporation, Falls Church, Va","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":["https://openalex.org/A5008344128"],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":1.9219,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":{"value":0.85078382,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"4","issue":"6","first_page":"1108","last_page":"1109"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11082","display_name":"Spacecraft Dynamics and Control","score":0.4569999873638153,"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"}},"topics":[{"id":"https://openalex.org/T11082","display_name":"Spacecraft Dynamics and Control","score":0.4569999873638153,"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/T12042","display_name":"Satellite Communication Systems","score":0.4050000011920929,"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":0.035599999129772186,"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/comsat","display_name":"COMSAT","score":0.5210000276565552},{"id":"https://openalex.org/keywords/communication-satellites","display_name":"communication satellites","score":0.5070000290870667},{"id":"https://openalex.org/keywords/eccentric-orbits","display_name":"eccentric orbits","score":0.7910000085830688},{"id":"https://openalex.org/keywords/satellite-coverage","display_name":"satellite coverage","score":0.5730000138282776}],"concepts":[{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.42707350850105286},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.3536917567253113},{"id":"https://openalex.org/C13280743","wikidata":"https://www.wikidata.org/wiki/Q131089","display_name":"Geodesy","level":1,"score":0.34760332107543945},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.3394564986228943},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.3321623206138611},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.2623087167739868}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.2514/3.3622","doi":"https://doi.org/10.2514/3.3622","is_oa":false,"landing_page_url":"https://doi.org/10.2514/3.3622","pdf_url":null,"source":{"id":"https://openalex.org/S53336109","display_name":"AIAA Journal","issn_l":"0001-1452","issn":["0001-1452","1081-0102","1533-385X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-a","jufo-1","norway-2","poland-140","russia-white-list-1"],"host_organization":"https://openalex.org/P4310315709","host_organization_name":"American Institute of Aeronautics and Astronautics","host_organization_lineage":["https://openalex.org/P4310315709"],"host_organization_lineage_names":["American Institute of Aeronautics and Astronautics"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"AIAA Journal","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":6,"referenced_works":["https://openalex.org/W630522361","https://openalex.org/W1971875016","https://openalex.org/W2047264351","https://openalex.org/W2061094471","https://openalex.org/W2730532238","https://openalex.org/W3093218115"],"related_works":["https://openalex.org/W2020081800","https://openalex.org/W2010481419","https://openalex.org/W2022962871","https://openalex.org/W4242506433","https://openalex.org/W3031315635","https://openalex.org/W3041502895","https://openalex.org/W2020988007","https://openalex.org/W2807040427","https://openalex.org/W2047264351","https://openalex.org/W2330597698"],"abstract_inverted_index":null,"counts_by_year":[],"updated_date":"2026-09-22T06:50:58.402377","created_date":"2016-06-24T00:00:00"}
