{"id":"https://openalex.org/W3217784630","doi":"https://doi.org/10.3390/rs13234849","title":"Impacts of Orbital and Constellation Parameters on the Number and Spatiotemporal Coverage of LEO-LEO Occultation Events","display_name":"Impacts of Orbital and Constellation Parameters on the Number and Spatiotemporal Coverage of LEO-LEO Occultation Events","publication_year":2021,"publication_date":"2021-11-29","ids":{"openalex":"https://openalex.org/W3217784630","doi":"https://doi.org/10.3390/rs13234849","mag":"3217784630"},"language":"en","primary_location":{"id":"doi:10.3390/rs13234849","is_oa":true,"landing_page_url":"https://doi.org/10.3390/rs13234849","pdf_url":"https://www.mdpi.com/2072-4292/13/23/4849/pdf?version=1638329316","source":{"id":"https://openalex.org/S43295729","display_name":"Remote Sensing","issn_l":"2072-4292","issn":["2072-4292"],"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":"Remote Sensing","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://www.mdpi.com/2072-4292/13/23/4849/pdf?version=1638329316","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5037587360","display_name":"Congliang Liu","orcid":"https://orcid.org/0000-0003-2660-1931"},"institutions":[{"id":"https://openalex.org/I15766117","display_name":"University of Graz","ror":"https://ror.org/01faaaf77","country_code":"AT","type":"education","lineage":["https://openalex.org/I15766117"]},{"id":"https://openalex.org/I19820366","display_name":"Chinese Academy of Sciences","ror":"https://ror.org/034t30j35","country_code":"CN","type":"government","lineage":["https://openalex.org/I19820366"]},{"id":"https://openalex.org/I4210115570","display_name":"National Space Science Center","ror":"https://ror.org/02nnjtm50","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210115570"]},{"id":"https://openalex.org/I4210165038","display_name":"University of Chinese Academy of Sciences","ror":"https://ror.org/05qbk4x57","country_code":"CN","type":"education","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210165038"]}],"countries":["AT","CN"],"is_corresponding":true,"raw_author_name":"Congliang Liu","raw_affiliation_strings":["Joint Laboratory on Occultations for Atmosphere and Climate (JLOAC) of NSSC/CAS, Beijing 100190, China, and University of Graz, 8010 Graz, Austria","National Space Science Center, Chinese Academy of Sciences (NSSC/CAS) and Beijing Key Laboratory of Space Environment Exploration, Beijing 100190, China","University of Chinese Academy of Sciences, Beijing 100190, China","Wegener Center for Climate and Global Change (WEGC) and Institute for Geophysics, Astrophysics, and Meteorology/Institute of Physics, University of Graz, 8010 Graz, Austria"],"affiliations":[{"raw_affiliation_string":"Joint Laboratory on Occultations for Atmosphere and Climate (JLOAC) of NSSC/CAS, Beijing 100190, China, and University of Graz, 8010 Graz, Austria","institution_ids":["https://openalex.org/I15766117"]},{"raw_affiliation_string":"National Space Science Center, Chinese Academy of Sciences (NSSC/CAS) and Beijing Key Laboratory of Space Environment Exploration, Beijing 100190, China","institution_ids":["https://openalex.org/I4210115570","https://openalex.org/I19820366"]},{"raw_affiliation_string":"University of Chinese Academy of Sciences, Beijing 100190, China","institution_ids":["https://openalex.org/I4210165038"]},{"raw_affiliation_string":"Wegener Center for Climate and Global Change (WEGC) and Institute for Geophysics, Astrophysics, and Meteorology/Institute of Physics, University of Graz, 8010 Graz, Austria","institution_ids":["https://openalex.org/I15766117"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5026471003","display_name":"Gottfried Kirchengast","orcid":"https://orcid.org/0000-0001-9187-937X"},"institutions":[{"id":"https://openalex.org/I15766117","display_name":"University of Graz","ror":"https://ror.org/01faaaf77","country_code":"AT","type":"education","lineage":["https://openalex.org/I15766117"]}],"countries":["AT"],"is_corresponding":false,"raw_author_name":"Gottfried Kirchengast","raw_affiliation_strings":["Joint Laboratory on Occultations for Atmosphere and Climate (JLOAC) of NSSC/CAS, Beijing 100190, China, and University of Graz, 8010 Graz, Austria","Wegener Center for Climate and Global Change (WEGC) and Institute for Geophysics, Astrophysics, and Meteorology/Institute of Physics, University of Graz, 8010 Graz, Austria"],"affiliations":[{"raw_affiliation_string":"Joint Laboratory on Occultations for Atmosphere and Climate (JLOAC) of NSSC/CAS, Beijing 100190, China, and University of Graz, 8010 Graz, Austria","institution_ids":["https://openalex.org/I15766117"]},{"raw_affiliation_string":"Wegener Center for Climate and Global Change (WEGC) and Institute for Geophysics, Astrophysics, and Meteorology/Institute of Physics, University of Graz, 8010 Graz, Austria","institution_ids":["https://openalex.org/I15766117"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5110749300","display_name":"Yueqiang Sun","orcid":null},"institutions":[{"id":"https://openalex.org/I15766117","display_name":"University of Graz","ror":"https://ror.org/01faaaf77","country_code":"AT","type":"education","lineage":["https://openalex.org/I15766117"]},{"id":"https://openalex.org/I19820366","display_name":"Chinese Academy of Sciences","ror":"https://ror.org/034t30j35","country_code":"CN","type":"government","lineage":["https://openalex.org/I19820366"]},{"id":"https://openalex.org/I4210115570","display_name":"National Space Science Center","ror":"https://ror.org/02nnjtm50","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210115570"]},{"id":"https://openalex.org/I4210165038","display_name":"University of Chinese Academy of Sciences","ror":"https://ror.org/05qbk4x57","country_code":"CN","type":"education","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210165038"]}],"countries":["AT","CN"],"is_corresponding":false,"raw_author_name":"Yueqiang Sun","raw_affiliation_strings":["Joint Laboratory on Occultations for Atmosphere and Climate (JLOAC) of NSSC/CAS, Beijing 100190, China, and University of Graz, 8010 Graz, Austria","National Space Science Center, Chinese Academy of Sciences (NSSC/CAS) and Beijing Key Laboratory of Space Environment Exploration, Beijing 100190, China","University of Chinese Academy of Sciences, Beijing 100190, China"],"affiliations":[{"raw_affiliation_string":"Joint Laboratory on Occultations for Atmosphere and Climate (JLOAC) of NSSC/CAS, Beijing 100190, China, and University of Graz, 8010 Graz, Austria","institution_ids":["https://openalex.org/I15766117"]},{"raw_affiliation_string":"National Space Science Center, Chinese Academy of Sciences (NSSC/CAS) and Beijing Key Laboratory of Space Environment Exploration, Beijing 100190, China","institution_ids":["https://openalex.org/I4210115570","https://openalex.org/I19820366"]},{"raw_affiliation_string":"University of Chinese Academy of Sciences, Beijing 100190, China","institution_ids":["https://openalex.org/I4210165038"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5020542576","display_name":"V. Proschek","orcid":null},"institutions":[{"id":"https://openalex.org/I15766117","display_name":"University of Graz","ror":"https://ror.org/01faaaf77","country_code":"AT","type":"education","lineage":["https://openalex.org/I15766117"]}],"countries":["AT"],"is_corresponding":false,"raw_author_name":"Veronika Proschek","raw_affiliation_strings":["Joint Laboratory on Occultations for Atmosphere and Climate (JLOAC) of NSSC/CAS, Beijing 100190, China, and University of Graz, 8010 Graz, Austria","Wegener Center for Climate and Global Change (WEGC) and Institute for Geophysics, Astrophysics, and Meteorology/Institute of Physics, University of Graz, 8010 Graz, Austria"],"affiliations":[{"raw_affiliation_string":"Joint Laboratory on Occultations for Atmosphere and Climate (JLOAC) of NSSC/CAS, Beijing 100190, China, and University of Graz, 8010 Graz, Austria","institution_ids":["https://openalex.org/I15766117"]},{"raw_affiliation_string":"Wegener Center for Climate and Global Change (WEGC) and Institute for Geophysics, Astrophysics, and Meteorology/Institute of Physics, University of Graz, 8010 Graz, Austria","institution_ids":["https://openalex.org/I15766117"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100327997","display_name":"Xin Wang","orcid":"https://orcid.org/0000-0002-7323-2289"},"institutions":[{"id":"https://openalex.org/I19820366","display_name":"Chinese Academy of Sciences","ror":"https://ror.org/034t30j35","country_code":"CN","type":"government","lineage":["https://openalex.org/I19820366"]},{"id":"https://openalex.org/I4210152758","display_name":"Institute of Atmospheric Physics","ror":"https://ror.org/0424h4e32","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210152758"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xin Wang","raw_affiliation_strings":["Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China"],"affiliations":[{"raw_affiliation_string":"Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China","institution_ids":["https://openalex.org/I4210152758","https://openalex.org/I19820366"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5102309673","display_name":"Longfei Tian","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/I4387154354","display_name":"Innovation Academy for Microsatellites of Chinese Academy of Sciences","ror":"https://ror.org/05f6mer85","country_code":null,"type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4387154354"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Longfei Tian","raw_affiliation_strings":["Innovation Academy for Microsatellite of Chinese Academy of Sciences, Shanghai 201210, China"],"affiliations":[{"raw_affiliation_string":"Innovation Academy for Microsatellite of Chinese Academy of Sciences, Shanghai 201210, China","institution_ids":["https://openalex.org/I4210088244","https://openalex.org/I4387154354"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100946755","display_name":"Qifei Du","orcid":null},"institutions":[{"id":"https://openalex.org/I15766117","display_name":"University of Graz","ror":"https://ror.org/01faaaf77","country_code":"AT","type":"education","lineage":["https://openalex.org/I15766117"]},{"id":"https://openalex.org/I19820366","display_name":"Chinese Academy of Sciences","ror":"https://ror.org/034t30j35","country_code":"CN","type":"government","lineage":["https://openalex.org/I19820366"]},{"id":"https://openalex.org/I4210115570","display_name":"National Space Science Center","ror":"https://ror.org/02nnjtm50","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210115570"]},{"id":"https://openalex.org/I4210165038","display_name":"University of Chinese Academy of Sciences","ror":"https://ror.org/05qbk4x57","country_code":"CN","type":"education","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210165038"]}],"countries":["AT","CN"],"is_corresponding":false,"raw_author_name":"Qifei Du","raw_affiliation_strings":["Joint Laboratory on Occultations for Atmosphere and Climate (JLOAC) of NSSC/CAS, Beijing 100190, China, and University of Graz, 8010 Graz, Austria","National Space Science Center, Chinese Academy of Sciences (NSSC/CAS) and Beijing Key Laboratory of Space Environment Exploration, Beijing 100190, China","University of Chinese Academy of Sciences, Beijing 100190, China"],"affiliations":[{"raw_affiliation_string":"Joint Laboratory on Occultations for Atmosphere and Climate (JLOAC) of NSSC/CAS, Beijing 100190, China, and University of Graz, 8010 Graz, Austria","institution_ids":["https://openalex.org/I15766117"]},{"raw_affiliation_string":"National Space Science Center, Chinese Academy of Sciences (NSSC/CAS) and Beijing Key Laboratory of Space Environment Exploration, Beijing 100190, China","institution_ids":["https://openalex.org/I4210115570","https://openalex.org/I19820366"]},{"raw_affiliation_string":"University of Chinese Academy of Sciences, Beijing 100190, China","institution_ids":["https://openalex.org/I4210165038"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5006413981","display_name":"Weihua Bai","orcid":"https://orcid.org/0000-0002-7002-787X"},"institutions":[{"id":"https://openalex.org/I15766117","display_name":"University of Graz","ror":"https://ror.org/01faaaf77","country_code":"AT","type":"education","lineage":["https://openalex.org/I15766117"]},{"id":"https://openalex.org/I19820366","display_name":"Chinese Academy of Sciences","ror":"https://ror.org/034t30j35","country_code":"CN","type":"government","lineage":["https://openalex.org/I19820366"]},{"id":"https://openalex.org/I4210115570","display_name":"National Space Science Center","ror":"https://ror.org/02nnjtm50","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210115570"]},{"id":"https://openalex.org/I4210165038","display_name":"University of Chinese Academy of Sciences","ror":"https://ror.org/05qbk4x57","country_code":"CN","type":"education","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210165038"]}],"countries":["AT","CN"],"is_corresponding":false,"raw_author_name":"Weihua Bai","raw_affiliation_strings":["Joint Laboratory on Occultations for Atmosphere and Climate (JLOAC) of NSSC/CAS, Beijing 100190, China, and University of Graz, 8010 Graz, Austria","National Space Science Center, Chinese Academy of Sciences (NSSC/CAS) and Beijing Key Laboratory of Space Environment Exploration, Beijing 100190, China","University of Chinese Academy of Sciences, Beijing 100190, China"],"affiliations":[{"raw_affiliation_string":"Joint Laboratory on Occultations for Atmosphere and Climate (JLOAC) of NSSC/CAS, Beijing 100190, China, and University of Graz, 8010 Graz, Austria","institution_ids":["https://openalex.org/I15766117"]},{"raw_affiliation_string":"National Space Science Center, Chinese Academy of Sciences (NSSC/CAS) and Beijing Key Laboratory of Space Environment Exploration, Beijing 100190, China","institution_ids":["https://openalex.org/I4210115570","https://openalex.org/I19820366"]},{"raw_affiliation_string":"University of Chinese Academy of Sciences, Beijing 100190, China","institution_ids":["https://openalex.org/I4210165038"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5112485853","display_name":"Chunjun Wu","orcid":null},"institutions":[{"id":"https://openalex.org/I15766117","display_name":"University of Graz","ror":"https://ror.org/01faaaf77","country_code":"AT","type":"education","lineage":["https://openalex.org/I15766117"]},{"id":"https://openalex.org/I19820366","display_name":"Chinese Academy of Sciences","ror":"https://ror.org/034t30j35","country_code":"CN","type":"government","lineage":["https://openalex.org/I19820366"]},{"id":"https://openalex.org/I4210115570","display_name":"National Space Science Center","ror":"https://ror.org/02nnjtm50","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210115570"]}],"countries":["AT","CN"],"is_corresponding":false,"raw_author_name":"Chunjun Wu","raw_affiliation_strings":["Joint Laboratory on Occultations for Atmosphere and Climate (JLOAC) of NSSC/CAS, Beijing 100190, China, and University of Graz, 8010 Graz, Austria","National Space Science Center, Chinese Academy of Sciences (NSSC/CAS) and Beijing Key Laboratory of Space Environment Exploration, Beijing 100190, China"],"affiliations":[{"raw_affiliation_string":"Joint Laboratory on Occultations for Atmosphere and Climate (JLOAC) of NSSC/CAS, Beijing 100190, China, and University of Graz, 8010 Graz, Austria","institution_ids":["https://openalex.org/I15766117"]},{"raw_affiliation_string":"National Space Science Center, Chinese Academy of Sciences (NSSC/CAS) and Beijing Key Laboratory of Space Environment Exploration, Beijing 100190, China","institution_ids":["https://openalex.org/I4210115570","https://openalex.org/I19820366"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5111286904","display_name":"Peng Hu","orcid":null},"institutions":[{"id":"https://openalex.org/I15766117","display_name":"University of Graz","ror":"https://ror.org/01faaaf77","country_code":"AT","type":"education","lineage":["https://openalex.org/I15766117"]},{"id":"https://openalex.org/I19820366","display_name":"Chinese Academy of Sciences","ror":"https://ror.org/034t30j35","country_code":"CN","type":"government","lineage":["https://openalex.org/I19820366"]},{"id":"https://openalex.org/I4210115570","display_name":"National Space Science Center","ror":"https://ror.org/02nnjtm50","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210115570"]}],"countries":["AT","CN"],"is_corresponding":false,"raw_author_name":"Peng Hu","raw_affiliation_strings":["Joint Laboratory on Occultations for Atmosphere and Climate (JLOAC) of NSSC/CAS, Beijing 100190, China, and University of Graz, 8010 Graz, Austria","National Space Science Center, Chinese Academy of Sciences (NSSC/CAS) and Beijing Key Laboratory of Space Environment Exploration, Beijing 100190, China"],"affiliations":[{"raw_affiliation_string":"Joint Laboratory on Occultations for Atmosphere and Climate (JLOAC) of NSSC/CAS, Beijing 100190, China, and University of Graz, 8010 Graz, Austria","institution_ids":["https://openalex.org/I15766117"]},{"raw_affiliation_string":"National Space Science Center, Chinese Academy of Sciences (NSSC/CAS) and Beijing Key Laboratory of Space Environment Exploration, Beijing 100190, China","institution_ids":["https://openalex.org/I4210115570","https://openalex.org/I19820366"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5085463374","display_name":"Guangyuan Tan","orcid":"https://orcid.org/0000-0003-1896-3203"},"institutions":[{"id":"https://openalex.org/I15766117","display_name":"University of Graz","ror":"https://ror.org/01faaaf77","country_code":"AT","type":"education","lineage":["https://openalex.org/I15766117"]},{"id":"https://openalex.org/I19820366","display_name":"Chinese Academy of Sciences","ror":"https://ror.org/034t30j35","country_code":"CN","type":"government","lineage":["https://openalex.org/I19820366"]},{"id":"https://openalex.org/I4210115570","display_name":"National Space Science Center","ror":"https://ror.org/02nnjtm50","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210115570"]}],"countries":["AT","CN"],"is_corresponding":false,"raw_author_name":"Guangyuan Tan","raw_affiliation_strings":["Joint Laboratory on Occultations for Atmosphere and Climate (JLOAC) of NSSC/CAS, Beijing 100190, China, and University of Graz, 8010 Graz, Austria","National Space Science Center, Chinese Academy of Sciences (NSSC/CAS) and Beijing Key Laboratory of Space Environment Exploration, Beijing 100190, China"],"affiliations":[{"raw_affiliation_string":"Joint Laboratory on Occultations for Atmosphere and Climate (JLOAC) of NSSC/CAS, Beijing 100190, China, and University of Graz, 8010 Graz, Austria","institution_ids":["https://openalex.org/I15766117"]},{"raw_affiliation_string":"National Space Science Center, Chinese Academy of Sciences (NSSC/CAS) and Beijing Key Laboratory of Space Environment Exploration, Beijing 100190, China","institution_ids":["https://openalex.org/I4210115570","https://openalex.org/I19820366"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":11,"corresponding_author_ids":["https://openalex.org/A5037587360"],"corresponding_institution_ids":["https://openalex.org/I15766117","https://openalex.org/I19820366","https://openalex.org/I4210115570","https://openalex.org/I4210165038"],"apc_list":{"value":2500,"currency":"CHF","value_usd":2707},"apc_paid":{"value":2500,"currency":"CHF","value_usd":2707},"fwci":1.4555,"has_fulltext":false,"cited_by_count":12,"citation_normalized_percentile":{"value":0.81880618,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":98},"biblio":{"volume":"13","issue":"23","first_page":"4849","last_page":"4849"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10159","display_name":"Ionosphere and magnetosphere dynamics","score":0.9991999864578247,"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/T10159","display_name":"Ionosphere and magnetosphere dynamics","score":0.9991999864578247,"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/T11320","display_name":"Atmospheric Ozone and Climate","score":0.9908000230789185,"subfield":{"id":"https://openalex.org/subfields/1902","display_name":"Atmospheric 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/T10655","display_name":"GNSS positioning and interference","score":0.9902999997138977,"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/occultation","display_name":"Occultation","score":0.9378387928009033},{"id":"https://openalex.org/keywords/radio-occultation","display_name":"Radio occultation","score":0.80287766456604},{"id":"https://openalex.org/keywords/constellation","display_name":"Constellation","score":0.5723252892494202},{"id":"https://openalex.org/keywords/orbit","display_name":"Orbit (dynamics)","score":0.5459983348846436},{"id":"https://openalex.org/keywords/satellite","display_name":"Satellite","score":0.5143945813179016},{"id":"https://openalex.org/keywords/satellite-constellation","display_name":"Satellite constellation","score":0.4968405067920685},{"id":"https://openalex.org/keywords/environmental-science","display_name":"Environmental science","score":0.46275919675827026},{"id":"https://openalex.org/keywords/polar-orbit","display_name":"Polar orbit","score":0.45975303649902344},{"id":"https://openalex.org/keywords/equator","display_name":"Equator","score":0.45776844024658203},{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.4336371421813965},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.382079541683197},{"id":"https://openalex.org/keywords/latitude","display_name":"Latitude","score":0.30052661895751953},{"id":"https://openalex.org/keywords/geology","display_name":"Geology","score":0.29415103793144226},{"id":"https://openalex.org/keywords/astronomy","display_name":"Astronomy","score":0.2613338828086853},{"id":"https://openalex.org/keywords/ionosphere","display_name":"Ionosphere","score":0.2237866222858429},{"id":"https://openalex.org/keywords/aerospace-engineering","display_name":"Aerospace engineering","score":0.11265888810157776}],"concepts":[{"id":"https://openalex.org/C131040042","wikidata":"https://www.wikidata.org/wiki/Q202746","display_name":"Occultation","level":2,"score":0.9378387928009033},{"id":"https://openalex.org/C2777034083","wikidata":"https://www.wikidata.org/wiki/Q1560557","display_name":"Radio occultation","level":3,"score":0.80287766456604},{"id":"https://openalex.org/C70352696","wikidata":"https://www.wikidata.org/wiki/Q8928","display_name":"Constellation","level":2,"score":0.5723252892494202},{"id":"https://openalex.org/C196644772","wikidata":"https://www.wikidata.org/wiki/Q3884964","display_name":"Orbit (dynamics)","level":2,"score":0.5459983348846436},{"id":"https://openalex.org/C19269812","wikidata":"https://www.wikidata.org/wiki/Q26540","display_name":"Satellite","level":2,"score":0.5143945813179016},{"id":"https://openalex.org/C2779784338","wikidata":"https://www.wikidata.org/wiki/Q967145","display_name":"Satellite constellation","level":3,"score":0.4968405067920685},{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.46275919675827026},{"id":"https://openalex.org/C92328372","wikidata":"https://www.wikidata.org/wiki/Q746711","display_name":"Polar orbit","level":3,"score":0.45975303649902344},{"id":"https://openalex.org/C12980444","wikidata":"https://www.wikidata.org/wiki/Q23538","display_name":"Equator","level":3,"score":0.45776844024658203},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.4336371421813965},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.382079541683197},{"id":"https://openalex.org/C122523270","wikidata":"https://www.wikidata.org/wiki/Q34027","display_name":"Latitude","level":2,"score":0.30052661895751953},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.29415103793144226},{"id":"https://openalex.org/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","level":1,"score":0.2613338828086853},{"id":"https://openalex.org/C116403925","wikidata":"https://www.wikidata.org/wiki/Q162219","display_name":"Ionosphere","level":2,"score":0.2237866222858429},{"id":"https://openalex.org/C146978453","wikidata":"https://www.wikidata.org/wiki/Q3798668","display_name":"Aerospace engineering","level":1,"score":0.11265888810157776},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.3390/rs13234849","is_oa":true,"landing_page_url":"https://doi.org/10.3390/rs13234849","pdf_url":"https://www.mdpi.com/2072-4292/13/23/4849/pdf?version=1638329316","source":{"id":"https://openalex.org/S43295729","display_name":"Remote Sensing","issn_l":"2072-4292","issn":["2072-4292"],"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":"Remote Sensing","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:2feaa4a5425b482c8b63cad9a39e1d43","is_oa":true,"landing_page_url":"https://doaj.org/article/2feaa4a5425b482c8b63cad9a39e1d43","pdf_url":null,"source":{"id":"https://openalex.org/S112646816","display_name":"SHILAP Revista de lepidopterolog\u00eda","issn_l":"0300-5267","issn":["0300-5267","2340-4078"],"is_oa":true,"is_in_doaj":true,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Remote Sensing, Vol 13, Iss 23, p 4849 (2021)","raw_type":"article"},{"id":"pmh:oai:mdpi.com:/2072-4292/13/23/4849/","is_oa":true,"landing_page_url":"https://dx.doi.org/10.3390/rs13234849","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":"Remote Sensing; Volume 13; Issue 23; Pages: 4849","raw_type":"Text"}],"best_oa_location":{"id":"doi:10.3390/rs13234849","is_oa":true,"landing_page_url":"https://doi.org/10.3390/rs13234849","pdf_url":"https://www.mdpi.com/2072-4292/13/23/4849/pdf?version=1638329316","source":{"id":"https://openalex.org/S43295729","display_name":"Remote Sensing","issn_l":"2072-4292","issn":["2072-4292"],"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":"Remote Sensing","raw_type":"journal-article"},"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W3217784630.pdf","grobid_xml":"https://content.openalex.org/works/W3217784630.grobid-xml"},"referenced_works_count":46,"referenced_works":["https://openalex.org/W45259417","https://openalex.org/W74675136","https://openalex.org/W137139021","https://openalex.org/W161044832","https://openalex.org/W191577212","https://openalex.org/W574453704","https://openalex.org/W1671783378","https://openalex.org/W1980235258","https://openalex.org/W1981139766","https://openalex.org/W1982766667","https://openalex.org/W1995715587","https://openalex.org/W1998109790","https://openalex.org/W2017009497","https://openalex.org/W2027178496","https://openalex.org/W2027312400","https://openalex.org/W2028058872","https://openalex.org/W2028892603","https://openalex.org/W2031335835","https://openalex.org/W2034552876","https://openalex.org/W2040144860","https://openalex.org/W2042853523","https://openalex.org/W2046488300","https://openalex.org/W2047638950","https://openalex.org/W2051337702","https://openalex.org/W2054191368","https://openalex.org/W2069917260","https://openalex.org/W2096747250","https://openalex.org/W2098897582","https://openalex.org/W2114896229","https://openalex.org/W2120653142","https://openalex.org/W2129356191","https://openalex.org/W2134492936","https://openalex.org/W2143903020","https://openalex.org/W2149689993","https://openalex.org/W2164628801","https://openalex.org/W2263103464","https://openalex.org/W2313522595","https://openalex.org/W2341516771","https://openalex.org/W2606694868","https://openalex.org/W2619825053","https://openalex.org/W2680822533","https://openalex.org/W2783779770","https://openalex.org/W2921775019","https://openalex.org/W2999482983","https://openalex.org/W3032687722","https://openalex.org/W3158076868"],"related_works":["https://openalex.org/W581459807","https://openalex.org/W2076760108","https://openalex.org/W2080119763","https://openalex.org/W2385429089","https://openalex.org/W2209680672","https://openalex.org/W3009895728","https://openalex.org/W631171883","https://openalex.org/W2019829304","https://openalex.org/W2082728146","https://openalex.org/W2045825028"],"abstract_inverted_index":{"The":[0,174],"development":[1],"of":[2,53,64,96,108,114,135,161,231,274,282],"small-satellite":[3],"technologies":[4],"allows":[5],"the":[6,17,31,51,59,77,93,97,106,126,133,141,154,179,185,194,248,253,279],"low":[7,260],"Earth":[8,142],"orbit":[9,180,224,235,243],"intersatellite":[10],"link":[11],"(LEO-LEO)":[12],"occultation":[13,66,71,86,115,137,162,232,249,254,271,288,294],"method":[14],"to":[15,43,49,124,131,212],"observe":[16],"Earth\u2019s":[18],"atmosphere":[19],"with":[20,237],"global":[21,111,158,229,283,301],"coverage":[22,112,159,230,302],"and":[23,34,55,61,74,105,130,150,157,166,172,182,206,222,240,261,265,290,298],"acceptable":[24],"costs":[25],"using":[26],"electromagnetic":[27],"signals,":[28],"in":[29,139,303],"which":[30,140],"L/X/K/M":[32],"band":[33,37],"short-wave":[35],"infrared":[36],"signals":[38],"have":[39],"been":[40],"well":[41],"demonstrated":[42],"be":[44,213],"suitable.":[45],"We":[46],"hence":[47],"need":[48],"investigate":[50,125],"impacts":[52,129],"orbital":[54,127,191],"constellation":[56],"parameters":[57,188],"on":[58],"number":[60],"spatiotemporal":[62],"distribution":[63],"LEO-LEO":[65,70,136,168,218,270],"events":[67,87,116,163,255,295],"for":[68,92,164,215,287],"best-possible":[69],"mission":[72,79],"design":[73],"optimization":[75],"at":[76],"targeted":[78],"size.":[80],"In":[81],"this":[82],"study,":[83],"firstly,":[84],"an":[85],"location":[88],"simulation":[89],"model":[90],"accounting":[91],"right":[94],"ascension":[95],"ascending":[98],"node":[99],"(RAAN)":[100],"precession":[101,196],"was":[102,117],"set":[103],"up":[104],"concept":[107],"a":[109,198,216,267],"time-dependent":[110],"fraction":[113,160],"defined.":[118],"Secondly,":[119],"numerical":[120,284],"experiments":[121],"were":[122,170],"designed":[123],"parameters\u2019":[128],"assess":[132],"performance":[134],"constellations,":[138],"is":[143,197],"divided":[144],"into":[145],"5\u00b0":[146,148],"\u00d7":[147],"latitude":[149,263],"longitude":[151],"cells.":[152],"Finally,":[153],"number,":[155],"timeliness,":[156,291],"two-orbit":[165],"multi-orbit":[167],"constellations":[169,225,236],"calculated":[171],"analyzed.":[173],"results":[175],"show":[176],"that:":[177],"\u2460":[178],"inclination":[181],"RAAN":[183,195],"are":[184,210,256],"main":[186],"impacting":[187],"followed":[189],"by":[190],"height,":[192],"while":[193],"relevant":[199],"modulation":[200],"factor;":[201],"\u2461":[202],"co-planar":[203],"counter-rotating":[204],"receiving":[205,239],"transmitting":[207,241],"satellite":[208,242],"orbits":[209],"confirmed":[211],"ideal":[214],"two-satellite":[217],"constellation;":[219],"\u2462":[220],"polar":[221],"near-polar":[223],"most":[226],"readily":[227,246],"achieve":[228],"events;":[233],"near-equator":[234],"supplementary":[238],"planes":[244],"also":[245],"form":[247],"event":[250],"geometry,":[251],"though":[252],"mainly":[257],"distributed":[258],"over":[259],"low-to-middle":[262],"zones;":[264],"\u2463":[266],"well-designed":[268],"larger":[269],"constellation,":[272],"composed":[273],"36\u201372":[275],"satellites,":[276],"can":[277],"meet":[278],"basic":[280],"requirements":[281],"weather":[285],"prediction":[286],"numbers":[289],"yielding":[292],"23,000\u201338,000":[293],"per":[296],"day":[297],"achieving":[299],"100%":[300],"12\u201318":[304],"h.":[305]},"counts_by_year":[{"year":2025,"cited_by_count":3},{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":6},{"year":2022,"cited_by_count":1}],"updated_date":"2026-03-27T05:58:40.876381","created_date":"2025-10-10T00:00:00"}