{"id":"https://openalex.org/W3082969531","doi":"https://doi.org/10.3390/rs12172848","title":"Spatio-Temporal Characteristics for Moon-Based Earth Observations","display_name":"Spatio-Temporal Characteristics for Moon-Based Earth Observations","publication_year":2020,"publication_date":"2020-09-02","ids":{"openalex":"https://openalex.org/W3082969531","doi":"https://doi.org/10.3390/rs12172848","mag":"3082969531"},"language":"en","primary_location":{"id":"doi:10.3390/rs12172848","is_oa":true,"landing_page_url":"https://doi.org/10.3390/rs12172848","pdf_url":"https://www.mdpi.com/2072-4292/12/17/2848/pdf?version=1599181962","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/2072-4292/12/17/2848/pdf?version=1599181962","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5020066512","display_name":"Jing Huang","orcid":"https://orcid.org/0000-0001-8250-1535"},"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/I4210137199","display_name":"Aerospace Information Research Institute","ror":"https://ror.org/0419fj215","country_code":"CN","type":"education","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210137199"]},{"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":["CN"],"is_corresponding":false,"raw_author_name":"Jing Huang","raw_affiliation_strings":["Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094, China","College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094, China","institution_ids":["https://openalex.org/I4210137199","https://openalex.org/I19820366"]},{"raw_affiliation_string":"College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China","institution_ids":["https://openalex.org/I4210165038"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5073894089","display_name":"Huadong Guo","orcid":"https://orcid.org/0000-0003-0337-1862"},"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/I4210137199","display_name":"Aerospace Information Research Institute","ror":"https://ror.org/0419fj215","country_code":"CN","type":"education","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210137199"]},{"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":["CN"],"is_corresponding":false,"raw_author_name":"Huadong Guo","raw_affiliation_strings":["Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094, China","College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094, China","institution_ids":["https://openalex.org/I4210137199","https://openalex.org/I19820366"]},{"raw_affiliation_string":"College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China","institution_ids":["https://openalex.org/I4210165038"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100625149","display_name":"Guang Liu","orcid":"https://orcid.org/0000-0001-8596-8528"},"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/I4210137199","display_name":"Aerospace Information Research Institute","ror":"https://ror.org/0419fj215","country_code":"CN","type":"education","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210137199"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Guang Liu","raw_affiliation_strings":["Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094, China","institution_ids":["https://openalex.org/I4210137199","https://openalex.org/I19820366"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5091518327","display_name":"Guozhuang Shen","orcid":null},"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/I4210137199","display_name":"Aerospace Information Research Institute","ror":"https://ror.org/0419fj215","country_code":"CN","type":"education","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210137199"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Guozhuang Shen","raw_affiliation_strings":["Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094, China"],"raw_orcid":"https://orcid.org/0000-0002-0326-9094","affiliations":[{"raw_affiliation_string":"Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094, China","institution_ids":["https://openalex.org/I4210137199","https://openalex.org/I19820366"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5078682616","display_name":"Hanlin Ye","orcid":"https://orcid.org/0000-0002-4592-339X"},"institutions":[{"id":"https://openalex.org/I194716290","display_name":"China Academy of Space Technology","ror":"https://ror.org/025397a59","country_code":"CN","type":"government","lineage":["https://openalex.org/I194716290","https://openalex.org/I2802615301"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Hanlin Ye","raw_affiliation_strings":["Qian Xuesen Laboratory of Space and Technology, China Academy of Space Technology, Beijing 100094, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Qian Xuesen Laboratory of Space and Technology, China Academy of Space Technology, Beijing 100094, China","institution_ids":["https://openalex.org/I194716290"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5000608856","display_name":"Yu Deng","orcid":"https://orcid.org/0000-0002-1467-5055"},"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/I20231570","display_name":"Peking University","ror":"https://ror.org/02v51f717","country_code":"CN","type":"education","lineage":["https://openalex.org/I20231570"]},{"id":"https://openalex.org/I4210137199","display_name":"Aerospace Information Research Institute","ror":"https://ror.org/0419fj215","country_code":"CN","type":"education","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210137199"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yu Deng","raw_affiliation_strings":["Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094, China","School of Earth and Space Sciences, Peking University, Beijing 100871, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094, China","institution_ids":["https://openalex.org/I4210137199","https://openalex.org/I19820366"]},{"raw_affiliation_string":"School of Earth and Space Sciences, Peking University, Beijing 100871, China","institution_ids":["https://openalex.org/I20231570"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5112692545","display_name":"Runbo Dong","orcid":"https://orcid.org/0009-0008-1858-7731"},"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/I4210137199","display_name":"Aerospace Information Research Institute","ror":"https://ror.org/0419fj215","country_code":"CN","type":"education","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210137199"]},{"id":"https://openalex.org/I99065089","display_name":"Tsinghua University","ror":"https://ror.org/03cve4549","country_code":"CN","type":"education","lineage":["https://openalex.org/I99065089"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Runbo Dong","raw_affiliation_strings":["Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094, China","Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094, China","institution_ids":["https://openalex.org/I4210137199","https://openalex.org/I19820366"]},{"raw_affiliation_string":"Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China","institution_ids":["https://openalex.org/I99065089"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":7,"corresponding_author_ids":["https://openalex.org/A5100625149"],"corresponding_institution_ids":["https://openalex.org/I19820366","https://openalex.org/I4210137199"],"apc_list":{"value":2500,"currency":"CHF","value_usd":2707},"apc_paid":{"value":2500,"currency":"CHF","value_usd":2707},"fwci":1.996,"has_fulltext":true,"cited_by_count":21,"citation_normalized_percentile":{"value":0.85774136,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":95,"max":99},"biblio":{"volume":"12","issue":"17","first_page":"2848","last_page":"2848"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10406","display_name":"Planetary Science and Exploration","score":0.9886999726295471,"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":0.9886999726295471,"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/T11325","display_name":"Inertial Sensor and Navigation","score":0.9721999764442444,"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/T11405","display_name":"Geophysics and Gravity Measurements","score":0.9707000255584717,"subfield":{"id":"https://openalex.org/subfields/1910","display_name":"Oceanography"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/elevation","display_name":"Elevation (ballistics)","score":0.6172467470169067},{"id":"https://openalex.org/keywords/geology","display_name":"Geology","score":0.5843656659126282},{"id":"https://openalex.org/keywords/geodesy","display_name":"Geodesy","score":0.5665301084518433},{"id":"https://openalex.org/keywords/northern-hemisphere","display_name":"Northern Hemisphere","score":0.4946419894695282},{"id":"https://openalex.org/keywords/earth","display_name":"Earth (classical element)","score":0.480092316865921},{"id":"https://openalex.org/keywords/figure-of-the-earth","display_name":"Figure of the Earth","score":0.4117036759853363},{"id":"https://openalex.org/keywords/geometry","display_name":"Geometry","score":0.24658137559890747},{"id":"https://openalex.org/keywords/atmospheric-sciences","display_name":"Atmospheric sciences","score":0.24499735236167908},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.17766159772872925},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.10449293255805969},{"id":"https://openalex.org/keywords/astronomy","display_name":"Astronomy","score":0.0854487419128418}],"concepts":[{"id":"https://openalex.org/C37054046","wikidata":"https://www.wikidata.org/wiki/Q641888","display_name":"Elevation (ballistics)","level":2,"score":0.6172467470169067},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.5843656659126282},{"id":"https://openalex.org/C13280743","wikidata":"https://www.wikidata.org/wiki/Q131089","display_name":"Geodesy","level":1,"score":0.5665301084518433},{"id":"https://openalex.org/C2778835443","wikidata":"https://www.wikidata.org/wiki/Q39061","display_name":"Northern Hemisphere","level":2,"score":0.4946419894695282},{"id":"https://openalex.org/C26148502","wikidata":"https://www.wikidata.org/wiki/Q2488752","display_name":"Earth (classical element)","level":2,"score":0.480092316865921},{"id":"https://openalex.org/C122224866","wikidata":"https://www.wikidata.org/wiki/Q437882","display_name":"Figure of the Earth","level":2,"score":0.4117036759853363},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.24658137559890747},{"id":"https://openalex.org/C91586092","wikidata":"https://www.wikidata.org/wiki/Q757520","display_name":"Atmospheric sciences","level":1,"score":0.24499735236167908},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.17766159772872925},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.10449293255805969},{"id":"https://openalex.org/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","level":1,"score":0.0854487419128418}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.3390/rs12172848","is_oa":true,"landing_page_url":"https://doi.org/10.3390/rs12172848","pdf_url":"https://www.mdpi.com/2072-4292/12/17/2848/pdf?version=1599181962","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:6ac398bfd9864fac8670354a69e10ee0","is_oa":true,"landing_page_url":"https://doaj.org/article/6ac398bfd9864fac8670354a69e10ee0","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":"Remote Sensing, Vol 12, Iss 17, p 2848 (2020)","raw_type":"article"},{"id":"pmh:oai:mdpi.com:/2072-4292/12/17/2848/","is_oa":true,"landing_page_url":"https://dx.doi.org/10.3390/rs12172848","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 12; Issue 17; Pages: 2848","raw_type":"Text"}],"best_oa_location":{"id":"doi:10.3390/rs12172848","is_oa":true,"landing_page_url":"https://doi.org/10.3390/rs12172848","pdf_url":"https://www.mdpi.com/2072-4292/12/17/2848/pdf?version=1599181962","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":[{"score":0.7699999809265137,"id":"https://metadata.un.org/sdg/14","display_name":"Life below water"}],"awards":[{"id":"https://openalex.org/G2298667468","display_name":null,"funder_award_id":"41590852","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G5417251334","display_name":null,"funder_award_id":"2020YFE0202100","funder_id":"https://openalex.org/F4320335777","funder_display_name":"National Key Research and Development Program of China"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"},{"id":"https://openalex.org/F4320335777","display_name":"National Key Research and Development Program of China","ror":null}],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W3082969531.pdf","grobid_xml":"https://content.openalex.org/works/W3082969531.grobid-xml"},"referenced_works_count":35,"referenced_works":["https://openalex.org/W45230256","https://openalex.org/W266829642","https://openalex.org/W1572707465","https://openalex.org/W1620268923","https://openalex.org/W1972434098","https://openalex.org/W2011692642","https://openalex.org/W2025894395","https://openalex.org/W2031136245","https://openalex.org/W2069555070","https://openalex.org/W2095187262","https://openalex.org/W2163326586","https://openalex.org/W2252598099","https://openalex.org/W2334892014","https://openalex.org/W2615117828","https://openalex.org/W2625994036","https://openalex.org/W2740857503","https://openalex.org/W2766165505","https://openalex.org/W2793435002","https://openalex.org/W2801002470","https://openalex.org/W2882717991","https://openalex.org/W2904617801","https://openalex.org/W2932059802","https://openalex.org/W2948731686","https://openalex.org/W2958112670","https://openalex.org/W2958492081","https://openalex.org/W2989802867","https://openalex.org/W2991345887","https://openalex.org/W3007811286","https://openalex.org/W3009321490","https://openalex.org/W4385528994","https://openalex.org/W6611646522","https://openalex.org/W6636804331","https://openalex.org/W6674440162","https://openalex.org/W6770526395","https://openalex.org/W6774162430"],"related_works":["https://openalex.org/W2356895184","https://openalex.org/W1601783526","https://openalex.org/W2391260669","https://openalex.org/W4298864904","https://openalex.org/W2049874777","https://openalex.org/W4230195314","https://openalex.org/W4235306220","https://openalex.org/W2092262436","https://openalex.org/W3011515707","https://openalex.org/W2792449268"],"abstract_inverted_index":{"Spatio-temporal":[0],"characteristics":[1,41,191],"are":[2],"the":[3,23,34,39,43,52,56,61,71,83,88,103,107,112,118,122,134,137,143,151,163,166,169,172,175,182,185,189,195,200,207,216],"crucial":[4],"conditions":[5],"for":[6,51,215],"Moon-based":[7,16,28,220],"Earth":[8,17,57,73,170,221],"observations.":[9],"In":[10,177],"this":[11,158,179,210],"study,":[12],"we":[13],"established":[14],"a":[15,27,49,77],"observation":[18,91,119,140,223],"geometric":[19],"model":[20],"by":[21],"considering":[22],"intervisibility":[24],"condition":[25],"between":[26,111,165],"platform":[29],"and":[30,80,106,125,157,171,192],"observed":[31,72,205],"points":[32],"on":[33,60,150,188,206],"Earth,":[35],"which":[36],"can":[37,203,212],"analyze":[38],"spatio-temporal":[40,190],"of":[42,45,55,121,136,145,168,174,184,197,219],"observations":[44],"Earth\u2019s":[46,201],"hemisphere.":[47],"Furthermore,":[48],"formula":[50],"spherical":[53,74,148],"cap":[54,75,149,159],"visibility":[58],"region":[59],"Moon":[62],"is":[63,154],"analytically":[64],"derived.":[65],"The":[66],"results":[67],"show":[68,96],"that:":[69],"(1)":[70],"has":[76],"diurnal":[78],"period":[79],"varies":[81,161],"with":[82,102,162],"nadir":[84],"point.":[85],"(2)":[86],"All":[87],"annual":[89],"global":[90],"durations":[92],"in":[93],"different":[94],"years":[95],"two":[97,113],"lines":[98,114],"that":[99],"almost":[100],"coincide":[101],"Arctic":[104],"circle":[105],"Antarctic":[108],"circle.":[109],"Regions":[110],"remain":[115],"stable,":[116],"but":[117],"duration":[120],"South":[123],"pole":[124,127],"North":[126],"changes":[128],"every":[129],"18.6":[130],"years.":[131],"(3)":[132],"With":[133],"increase":[135],"line-of-sight":[138],"minimum":[139],"elevation":[141,186],"angle,":[142],"area":[144,198],"an":[146],"intervisible":[147],"lunar":[152,208],"surface":[153],"obviously":[155],"decreased,":[156],"also":[160],"distance":[164],"barycenter":[167,173],"Moon.":[176],"general,":[178],"study":[180],"reveals":[181],"effects":[183],"angle":[187],"additionally":[193],"determines":[194],"change":[196],"where":[199],"hemisphere":[202,222],"be":[204],"surface;":[209],"information":[211],"provide":[213],"support":[214],"accurate":[217],"calculation":[218],"times.":[224]},"counts_by_year":[{"year":2025,"cited_by_count":3},{"year":2024,"cited_by_count":3},{"year":2023,"cited_by_count":4},{"year":2022,"cited_by_count":8},{"year":2021,"cited_by_count":3}],"updated_date":"2026-05-21T06:26:12.895304","created_date":"2020-09-08T00:00:00"}
