{"id":"https://openalex.org/W3154183439","doi":"https://doi.org/10.1109/taes.2021.3068432","title":"Estimator for Deep-Space Position and Attitude Using X-ray Pulsars","display_name":"Estimator for Deep-Space Position and Attitude Using X-ray Pulsars","publication_year":2021,"publication_date":"2021-04-09","ids":{"openalex":"https://openalex.org/W3154183439","doi":"https://doi.org/10.1109/taes.2021.3068432","mag":"3154183439"},"language":"en","primary_location":{"id":"doi:10.1109/taes.2021.3068432","is_oa":false,"landing_page_url":"https://doi.org/10.1109/taes.2021.3068432","pdf_url":null,"source":{"id":"https://openalex.org/S193624734","display_name":"IEEE Transactions on Aerospace and Electronic Systems","issn_l":"0018-9251","issn":["0018-9251","1557-9603","2371-9877"],"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 Aerospace and Electronic Systems","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/A5058507912","display_name":"Joel Runnels","orcid":"https://orcid.org/0000-0002-5186-7742"},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"Joel T. Runnels","raw_affiliation_strings":["Ball Aerospace, Boulder, CO, USA"],"affiliations":[{"raw_affiliation_string":"Ball Aerospace, Boulder, CO, USA","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5068012045","display_name":"Demoz Gebre\u2010Egziabher","orcid":"https://orcid.org/0000-0001-6623-9602"},"institutions":[{"id":"https://openalex.org/I130238516","display_name":"University of Minnesota","ror":"https://ror.org/017zqws13","country_code":"US","type":"education","lineage":["https://openalex.org/I130238516"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Demoz Gebre-Egziabher","raw_affiliation_strings":["University of Minnesota, Minneapolis, MN, USA"],"affiliations":[{"raw_affiliation_string":"University of Minnesota, Minneapolis, MN, USA","institution_ids":["https://openalex.org/I130238516"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5058507912"],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":14.2308,"has_fulltext":false,"cited_by_count":14,"citation_normalized_percentile":{"value":0.98118889,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":99},"biblio":{"volume":"57","issue":"4","first_page":"2149","last_page":"2166"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11325","display_name":"Inertial Sensor and Navigation","score":0.9998999834060669,"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/T11325","display_name":"Inertial Sensor and Navigation","score":0.9998999834060669,"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":0.9991999864578247,"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"}},{"id":"https://openalex.org/T10655","display_name":"GNSS positioning and interference","score":0.9987999796867371,"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/pulsar","display_name":"Pulsar","score":0.8753151893615723},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.6886770129203796},{"id":"https://openalex.org/keywords/detector","display_name":"Detector","score":0.5966876745223999},{"id":"https://openalex.org/keywords/nasa-deep-space-network","display_name":"NASA Deep Space Network","score":0.5533443093299866},{"id":"https://openalex.org/keywords/position","display_name":"Position (finance)","score":0.5214259624481201},{"id":"https://openalex.org/keywords/x-ray-pulsar","display_name":"X-ray pulsar","score":0.4937327802181244},{"id":"https://openalex.org/keywords/spacecraft","display_name":"Spacecraft","score":0.4844658374786377},{"id":"https://openalex.org/keywords/estimator","display_name":"Estimator","score":0.4714934229850769},{"id":"https://openalex.org/keywords/filter","display_name":"Filter (signal processing)","score":0.4578411281108856},{"id":"https://openalex.org/keywords/noise","display_name":"Noise (video)","score":0.4209528863430023},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.35700732469558716},{"id":"https://openalex.org/keywords/astrophysics","display_name":"Astrophysics","score":0.3109828233718872},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.2747829556465149},{"id":"https://openalex.org/keywords/astronomy","display_name":"Astronomy","score":0.2432086169719696},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.24125400185585022},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.10415375232696533},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.09954699873924255}],"concepts":[{"id":"https://openalex.org/C110363677","wikidata":"https://www.wikidata.org/wiki/Q4360","display_name":"Pulsar","level":2,"score":0.8753151893615723},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.6886770129203796},{"id":"https://openalex.org/C94915269","wikidata":"https://www.wikidata.org/wiki/Q1834857","display_name":"Detector","level":2,"score":0.5966876745223999},{"id":"https://openalex.org/C187107819","wikidata":"https://www.wikidata.org/wiki/Q835696","display_name":"NASA Deep Space Network","level":3,"score":0.5533443093299866},{"id":"https://openalex.org/C198082294","wikidata":"https://www.wikidata.org/wiki/Q3399648","display_name":"Position (finance)","level":2,"score":0.5214259624481201},{"id":"https://openalex.org/C119698587","wikidata":"https://www.wikidata.org/wiki/Q2979836","display_name":"X-ray pulsar","level":3,"score":0.4937327802181244},{"id":"https://openalex.org/C29829512","wikidata":"https://www.wikidata.org/wiki/Q40218","display_name":"Spacecraft","level":2,"score":0.4844658374786377},{"id":"https://openalex.org/C185429906","wikidata":"https://www.wikidata.org/wiki/Q1130160","display_name":"Estimator","level":2,"score":0.4714934229850769},{"id":"https://openalex.org/C106131492","wikidata":"https://www.wikidata.org/wiki/Q3072260","display_name":"Filter (signal processing)","level":2,"score":0.4578411281108856},{"id":"https://openalex.org/C99498987","wikidata":"https://www.wikidata.org/wiki/Q2210247","display_name":"Noise (video)","level":3,"score":0.4209528863430023},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.35700732469558716},{"id":"https://openalex.org/C44870925","wikidata":"https://www.wikidata.org/wiki/Q37547","display_name":"Astrophysics","level":1,"score":0.3109828233718872},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.2747829556465149},{"id":"https://openalex.org/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","level":1,"score":0.2432086169719696},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.24125400185585022},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.10415375232696533},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.09954699873924255},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.0},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.0},{"id":"https://openalex.org/C10138342","wikidata":"https://www.wikidata.org/wiki/Q43015","display_name":"Finance","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/taes.2021.3068432","is_oa":false,"landing_page_url":"https://doi.org/10.1109/taes.2021.3068432","pdf_url":null,"source":{"id":"https://openalex.org/S193624734","display_name":"IEEE Transactions on Aerospace and Electronic Systems","issn_l":"0018-9251","issn":["0018-9251","1557-9603","2371-9877"],"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 Aerospace and Electronic Systems","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Peace, Justice and strong institutions","score":0.6800000071525574,"id":"https://metadata.un.org/sdg/16"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":34,"referenced_works":["https://openalex.org/W636927631","https://openalex.org/W1601068702","https://openalex.org/W1687185109","https://openalex.org/W1728580267","https://openalex.org/W1936211666","https://openalex.org/W1975550608","https://openalex.org/W1981501272","https://openalex.org/W2048605796","https://openalex.org/W2052923946","https://openalex.org/W2064016325","https://openalex.org/W2065647814","https://openalex.org/W2072610077","https://openalex.org/W2073399866","https://openalex.org/W2076866511","https://openalex.org/W2088727039","https://openalex.org/W2109179795","https://openalex.org/W2128710512","https://openalex.org/W2135128673","https://openalex.org/W2154914590","https://openalex.org/W2164886308","https://openalex.org/W2169392050","https://openalex.org/W2326471027","https://openalex.org/W2399457126","https://openalex.org/W2622172693","https://openalex.org/W2626089125","https://openalex.org/W2781730650","https://openalex.org/W2788030339","https://openalex.org/W2911086430","https://openalex.org/W2911952250","https://openalex.org/W3103881144","https://openalex.org/W6637550908","https://openalex.org/W6713065574","https://openalex.org/W6748249709","https://openalex.org/W6758494834"],"related_works":["https://openalex.org/W2077874591","https://openalex.org/W3101324886","https://openalex.org/W2025839916","https://openalex.org/W2014334174","https://openalex.org/W3179672283","https://openalex.org/W2085580298","https://openalex.org/W4383102480","https://openalex.org/W3104581605","https://openalex.org/W2963191318","https://openalex.org/W3016270812"],"abstract_inverted_index":{"In":[0],"this":[1,98],"article,":[2],"we":[3],"develop":[4],"an":[5,125],"algorithm":[6,153],"for":[7,45],"the":[8,27,48,62,70,131,138,152,164,174,183],"estimation":[9],"of":[10,15,31,33,66,130,151,158,176,185],"a":[11,100,115],"full":[12],"six":[13],"degree":[14],"freedom":[16],"position,":[17],"navigation,":[18,47],"and":[19,29,38,50,69,79,121,137,144,179],"timing":[20],"solution":[21],"in":[22,59,135],"deep":[23],"space":[24],"by":[25,156],"measuring":[26],"time":[28],"angle":[30],"arrival":[32],"x-rays":[34],"photons":[35,74],"from":[36,76,114,124,160],"pulsars":[37,78],"other":[39],"bright":[40,80],"stars.":[41],"We":[42],"show":[43,169],"that":[44,72,86,170],"pulsar":[46,67],"position":[49],"attitude":[51,180],"determination":[52],"problems":[53],"are":[54,147],"coupled.":[55],"This":[56],"is":[57,106,133,154],"due":[58],"part":[60],"to":[61,90],"small":[63],"signal-to-noise":[64],"ratio":[65],"signals":[68],"fact":[71],"x-ray":[73,126,161],"emanating":[75],"various":[77],"stars":[81],"have":[82],"no":[83],"unique":[84],"identifier":[85],"can":[87,188],"be":[88,189],"used":[89],"associate":[91],"them":[92],"with":[93,119,141],"their":[94],"source.":[95],"To":[96],"address":[97],"challenge,":[99],"joint":[101],"probabilistic":[102],"data":[103,159],"association":[104],"filter":[105,109,132],"developed.":[107],"The":[108,128,167],"fuses":[110],"angular":[111],"rate":[112,117],"measurements":[113,123],"three-axis":[116],"gyro":[118],"time-of-arrival":[120],"angle-of-arrival":[122],"detector.":[127],"performance":[129],"validated":[134],"simulation,":[136],"tradeoffs":[139],"associated":[140],"detector":[142],"size":[143],"initial":[145],"conditions":[146],"evaluated.":[148],"Additional":[149],"validation":[150],"performed":[155],"playback":[157],"detectors":[162],"on":[163,173,182],"Chandra":[165],"spacecraft.":[166],"results":[168],"positioning":[171],"accuracy":[172],"order":[175,184],"1000":[177],"km":[178],"accuracies":[181],"5":[186],"arcseconds":[187],"achieved.":[190]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2024,"cited_by_count":5},{"year":2023,"cited_by_count":5},{"year":2022,"cited_by_count":2},{"year":2021,"cited_by_count":1}],"updated_date":"2026-04-03T22:45:19.894376","created_date":"2025-10-10T00:00:00"}