{"id":"https://openalex.org/W2102746492","doi":"https://doi.org/10.1109/tgrs.2009.2031229","title":"The Impact of Solar Irradiance on AJISAI's Spin Period Measured by the Graz 2-kHz SLR System","display_name":"The Impact of Solar Irradiance on AJISAI's Spin Period Measured by the Graz 2-kHz SLR System","publication_year":2009,"publication_date":"2009-10-22","ids":{"openalex":"https://openalex.org/W2102746492","doi":"https://doi.org/10.1109/tgrs.2009.2031229","mag":"2102746492"},"language":"en","primary_location":{"id":"doi:10.1109/tgrs.2009.2031229","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tgrs.2009.2031229","pdf_url":null,"source":{"id":"https://openalex.org/S111326731","display_name":"IEEE Transactions on Geoscience and Remote Sensing","issn_l":"0196-2892","issn":["0196-2892","1558-0644"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Geoscience and Remote Sensing","raw_type":"journal-article"},"type":"article","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/A5071752769","display_name":"D. Kucharski","orcid":"https://orcid.org/0000-0002-7935-7138"},"institutions":[{"id":"https://openalex.org/I4210091641","display_name":"Space Research Institute","ror":"https://ror.org/002w0jp71","country_code":"AT","type":"facility","lineage":["https://openalex.org/I138211613","https://openalex.org/I4210091641"]},{"id":"https://openalex.org/I138211613","display_name":"Austrian Academy of Sciences","ror":"https://ror.org/03anc3s24","country_code":"AT","type":"funder","lineage":["https://openalex.org/I138211613"]}],"countries":["AT"],"is_corresponding":true,"raw_author_name":"D. Kucharski","raw_affiliation_strings":["Space Research Institute, Austrian Academy of Sciences, Graz, Austria","Space Res. Inst., Austrian Acad. of Sci., Graz, Austria"],"affiliations":[{"raw_affiliation_string":"Space Research Institute, Austrian Academy of Sciences, Graz, Austria","institution_ids":["https://openalex.org/I4210091641","https://openalex.org/I138211613"]},{"raw_affiliation_string":"Space Res. Inst., Austrian Acad. of Sci., Graz, Austria","institution_ids":["https://openalex.org/I138211613"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5075803733","display_name":"Georg Kirchner","orcid":null},"institutions":[{"id":"https://openalex.org/I4210091641","display_name":"Space Research Institute","ror":"https://ror.org/002w0jp71","country_code":"AT","type":"facility","lineage":["https://openalex.org/I138211613","https://openalex.org/I4210091641"]},{"id":"https://openalex.org/I138211613","display_name":"Austrian Academy of Sciences","ror":"https://ror.org/03anc3s24","country_code":"AT","type":"funder","lineage":["https://openalex.org/I138211613"]}],"countries":["AT"],"is_corresponding":false,"raw_author_name":"G. Kirchner","raw_affiliation_strings":["Space Research Institute, Austrian Academy of Sciences, Graz, Austria","Space Res. Inst., Austrian Acad. of Sci., Graz, Austria"],"affiliations":[{"raw_affiliation_string":"Space Research Institute, Austrian Academy of Sciences, Graz, Austria","institution_ids":["https://openalex.org/I4210091641","https://openalex.org/I138211613"]},{"raw_affiliation_string":"Space Res. Inst., Austrian Acad. of Sci., Graz, Austria","institution_ids":["https://openalex.org/I138211613"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5107223127","display_name":"Toshimichi Otsubo","orcid":"https://orcid.org/0000-0003-1615-535X"},"institutions":[{"id":"https://openalex.org/I111428342","display_name":"Hitotsubashi University","ror":"https://ror.org/04jqj7p05","country_code":"JP","type":"education","lineage":["https://openalex.org/I111428342"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"T. Otsubo","raw_affiliation_strings":["Graduate School of Social Sciences, Hitotsubashi University, Tokyo, Japan","Grad. Sch. of Social Sci., Hitotsubashi Univ., Kunitachi, Japan"],"affiliations":[{"raw_affiliation_string":"Graduate School of Social Sciences, Hitotsubashi University, Tokyo, Japan","institution_ids":["https://openalex.org/I111428342"]},{"raw_affiliation_string":"Grad. Sch. of Social Sci., Hitotsubashi Univ., Kunitachi, Japan","institution_ids":["https://openalex.org/I111428342"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5012425839","display_name":"Franz Koidl","orcid":null},"institutions":[{"id":"https://openalex.org/I4210091641","display_name":"Space Research Institute","ror":"https://ror.org/002w0jp71","country_code":"AT","type":"facility","lineage":["https://openalex.org/I138211613","https://openalex.org/I4210091641"]},{"id":"https://openalex.org/I138211613","display_name":"Austrian Academy of Sciences","ror":"https://ror.org/03anc3s24","country_code":"AT","type":"funder","lineage":["https://openalex.org/I138211613"]}],"countries":["AT"],"is_corresponding":false,"raw_author_name":"F. Koidl","raw_affiliation_strings":["Space Research Institute, Austrian Academy of Sciences, Graz, Austria","Space Res. Inst., Austrian Acad. of Sci., Graz, Austria"],"affiliations":[{"raw_affiliation_string":"Space Research Institute, Austrian Academy of Sciences, Graz, Austria","institution_ids":["https://openalex.org/I4210091641","https://openalex.org/I138211613"]},{"raw_affiliation_string":"Space Res. Inst., Austrian Acad. of Sci., Graz, Austria","institution_ids":["https://openalex.org/I138211613"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5071752769"],"corresponding_institution_ids":["https://openalex.org/I138211613","https://openalex.org/I4210091641"],"apc_list":null,"apc_paid":null,"fwci":4.8342,"has_fulltext":false,"cited_by_count":23,"citation_normalized_percentile":{"value":0.94397583,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":98},"biblio":{"volume":"48","issue":"3","first_page":"1629","last_page":"1633"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T13885","display_name":"Geophysics and Sensor Technology","score":0.9980999827384949,"subfield":{"id":"https://openalex.org/subfields/2212","display_name":"Ocean 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/T13885","display_name":"Geophysics and Sensor Technology","score":0.9980999827384949,"subfield":{"id":"https://openalex.org/subfields/2212","display_name":"Ocean 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/T10655","display_name":"GNSS positioning and interference","score":0.996399998664856,"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/T12004","display_name":"Advanced Frequency and Time Standards","score":0.9955999851226807,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/satellite","display_name":"Satellite","score":0.626046895980835},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.48999181389808655},{"id":"https://openalex.org/keywords/satellite-laser-ranging","display_name":"Satellite laser ranging","score":0.4860146641731262},{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.4706933796405792},{"id":"https://openalex.org/keywords/period","display_name":"Period (music)","score":0.4529147148132324},{"id":"https://openalex.org/keywords/irradiance","display_name":"Irradiance","score":0.44126901030540466},{"id":"https://openalex.org/keywords/spin","display_name":"Spin (aerodynamics)","score":0.43551957607269287},{"id":"https://openalex.org/keywords/meteorology","display_name":"Meteorology","score":0.3810018301010132},{"id":"https://openalex.org/keywords/laser","display_name":"Laser","score":0.3730062246322632},{"id":"https://openalex.org/keywords/astronomy","display_name":"Astronomy","score":0.3493213653564453},{"id":"https://openalex.org/keywords/geodesy","display_name":"Geodesy","score":0.33756813406944275},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.30801522731781006},{"id":"https://openalex.org/keywords/geology","display_name":"Geology","score":0.21194502711296082},{"id":"https://openalex.org/keywords/laser-ranging","display_name":"Laser ranging","score":0.16913765668869019},{"id":"https://openalex.org/keywords/acoustics","display_name":"Acoustics","score":0.11658433079719543}],"concepts":[{"id":"https://openalex.org/C19269812","wikidata":"https://www.wikidata.org/wiki/Q26540","display_name":"Satellite","level":2,"score":0.626046895980835},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.48999181389808655},{"id":"https://openalex.org/C81005367","wikidata":"https://www.wikidata.org/wiki/Q1413924","display_name":"Satellite laser ranging","level":4,"score":0.4860146641731262},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.4706933796405792},{"id":"https://openalex.org/C2781291010","wikidata":"https://www.wikidata.org/wiki/Q178580","display_name":"Period (music)","level":2,"score":0.4529147148132324},{"id":"https://openalex.org/C46423501","wikidata":"https://www.wikidata.org/wiki/Q830654","display_name":"Irradiance","level":2,"score":0.44126901030540466},{"id":"https://openalex.org/C42704618","wikidata":"https://www.wikidata.org/wiki/Q910917","display_name":"Spin (aerodynamics)","level":2,"score":0.43551957607269287},{"id":"https://openalex.org/C153294291","wikidata":"https://www.wikidata.org/wiki/Q25261","display_name":"Meteorology","level":1,"score":0.3810018301010132},{"id":"https://openalex.org/C520434653","wikidata":"https://www.wikidata.org/wiki/Q38867","display_name":"Laser","level":2,"score":0.3730062246322632},{"id":"https://openalex.org/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","level":1,"score":0.3493213653564453},{"id":"https://openalex.org/C13280743","wikidata":"https://www.wikidata.org/wiki/Q131089","display_name":"Geodesy","level":1,"score":0.33756813406944275},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.30801522731781006},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.21194502711296082},{"id":"https://openalex.org/C2985143356","wikidata":"https://www.wikidata.org/wiki/Q1426632","display_name":"Laser ranging","level":3,"score":0.16913765668869019},{"id":"https://openalex.org/C24890656","wikidata":"https://www.wikidata.org/wiki/Q82811","display_name":"Acoustics","level":1,"score":0.11658433079719543},{"id":"https://openalex.org/C97355855","wikidata":"https://www.wikidata.org/wiki/Q11473","display_name":"Thermodynamics","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tgrs.2009.2031229","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tgrs.2009.2031229","pdf_url":null,"source":{"id":"https://openalex.org/S111326731","display_name":"IEEE Transactions on Geoscience and Remote Sensing","issn_l":"0196-2892","issn":["0196-2892","1558-0644"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Geoscience and Remote Sensing","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/7","score":0.800000011920929,"display_name":"Affordable and clean energy"}],"awards":[],"funders":[{"id":"https://openalex.org/F4320306101","display_name":"National Aeronautics and Space Administration","ror":"https://ror.org/027ka1x80"},{"id":"https://openalex.org/F4320310430","display_name":"TU Graz, Internationale Beziehungen und Mobilit\u00e4tsprogramme","ror":"https://ror.org/00d7xrm67"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":20,"referenced_works":["https://openalex.org/W1629387643","https://openalex.org/W1979511976","https://openalex.org/W1987799437","https://openalex.org/W1996181356","https://openalex.org/W1998578175","https://openalex.org/W2000612046","https://openalex.org/W2006336955","https://openalex.org/W2015254245","https://openalex.org/W2035474678","https://openalex.org/W2069489138","https://openalex.org/W2080842103","https://openalex.org/W2082850205","https://openalex.org/W2090084772","https://openalex.org/W2093659254","https://openalex.org/W2145898531","https://openalex.org/W2155222977","https://openalex.org/W2157976518","https://openalex.org/W2484400775","https://openalex.org/W3126781693","https://openalex.org/W6636663668"],"related_works":["https://openalex.org/W2304765412","https://openalex.org/W2350995974","https://openalex.org/W38035074","https://openalex.org/W2101587261","https://openalex.org/W1613953948","https://openalex.org/W2084787616","https://openalex.org/W3120999241","https://openalex.org/W1970088809","https://openalex.org/W3166387467","https://openalex.org/W2467998411"],"abstract_inverted_index":{"The":[0,143],"Graz":[1,18,67],"kHz":[2,68],"Satellite":[3],"Laser":[4],"Ranging":[5],"(SLR)":[6],"system":[7,11],"is":[8,111,131,174],"the":[9,31,35,42,46,135,141,148,151,157,166,172],"first":[10,149],"operating":[12],"with":[13,96],"a":[14,25],"2-kHz-repetition-rate":[15],"laser.":[16],"Using":[17,66],"2-kHz":[19],"SLR":[20,69],"data":[21,70],"only,":[22],"we":[23,76],"applied":[24],"new":[26],"analytical":[27],"approach":[28],"to":[29,45,165,170],"determine":[30],"spin":[32,90,104,158],"period":[33,91,105,159],"of":[34,50,55,59,71,80,99,140,153,156],"passive":[36],"satellite":[37,61,173],"AJISAI.":[38],"This":[39,103,128],"method":[40],"analyzes":[41],"range":[43],"measurements":[44],"single":[47],"corner-cube-reflector":[48],"panels":[49],"AJISAI,":[51],"allowing":[52],"accurate":[53],"determination":[54],"an":[56,97,114],"actual":[57],"attitude":[58],"this":[60],"during":[62],"day":[63],"and":[64,87,137],"night.":[65],"more":[72],"than":[73],"five":[74],"years,":[75],"processed":[77],"877":[78],"passes":[79],"AJISAI":[81],"(October":[82],"9,":[83],"2003-December":[84],"22,":[85],"2008)":[86],"calculated":[88],"its":[89],"(":[92,106],"~":[93],"2":[94],"s)":[95],"accuracy":[98,145],"0.0042%":[100],"(84":[101],"\u00bfs).":[102],"<i":[107,117],"xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"":[108,118],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">T</i>":[109,119],")":[110],"increasing,":[112],"following":[113],"exponential":[115],"trend:":[116],"=1.9028":[120],"\u00b7Exp":[121],"(0.014859":[122],".":[123],"(Year":[124],"-":[125],"2003.0))":[126],"s.":[127],"slow":[129],"down":[130],"mainly":[132],"caused":[133,160],"by":[134,161],"gravitational":[136],"magnetic":[138],"fields":[139],"Earth.":[142],"high":[144],"allows,":[146],"for":[147],"time,":[150],"detection":[152],"small":[154],"perturbations":[155],"nongravitational":[162],"effects":[163],"related":[164],"solar":[167],"energy":[168],"flux":[169],"which":[171],"exposed.":[175]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2023,"cited_by_count":1},{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":2},{"year":2019,"cited_by_count":2},{"year":2017,"cited_by_count":1},{"year":2015,"cited_by_count":2},{"year":2014,"cited_by_count":2},{"year":2013,"cited_by_count":4},{"year":2012,"cited_by_count":4}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}