{"id":"https://openalex.org/W2595519734","doi":null,"title":"Investigation of Earth-Bound Low-Thrust Trajectories for Mission Analysis of Multiple Target On-Orbit Servicing","display_name":"Investigation of Earth-Bound Low-Thrust Trajectories for Mission Analysis of Multiple Target On-Orbit Servicing","publication_year":2016,"publication_date":"2016-05-01","ids":{"openalex":"https://openalex.org/W2595519734","mag":"2595519734"},"language":"en","primary_location":{"id":"pmh:oai:elib.dlr.de:108193","doi":null,"is_oa":true,"landing_page_url":"https://elib.dlr.de/108193/1/Porat_MasterThesis_V2.pdf","pdf_url":"https://elib.dlr.de/108193/1/Porat_MasterThesis_V2.pdf","source":{"id":"https://openalex.org/S4377196266","display_name":"elib (German Aerospace Center)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I2898391981","host_organization_name":"Deutsches Zentrum f\u00fcr Luft- und Raumfahrt e. V. (DLR)","host_organization_lineage":["https://openalex.org/I2898391981"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Hochschulschrift"},"volume":null,"type":"dissertation","indexed_in":[],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://elib.dlr.de/108193/1/Porat_MasterThesis_V2.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":null,"display_name":"Yuval Porat","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"Yuval Porat","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":true,"cited_by_count":1,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11701","display_name":"Space Satellite Systems and Control","score":0.7378000020980835,"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/T11701","display_name":"Space Satellite Systems and Control","score":0.7378000020980835,"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/T11082","display_name":"Spacecraft Dynamics and Control","score":0.25850000977516174,"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/T12449","display_name":"Spacecraft Design and Technology","score":0.0012000000569969416,"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/on-orbit-servicing","display_name":"on-orbit servicing","score":0.843999981880188},{"id":"https://openalex.org/keywords/low-thrust-trajectories","display_name":"low-thrust trajectories","score":0.7590000033378601},{"id":"https://openalex.org/keywords/space-debris-removal","display_name":"space debris removal","score":0.824999988079071},{"id":"https://openalex.org/keywords/low-earth-orbit","display_name":"low Earth orbit","score":0.6259999871253967},{"id":"https://openalex.org/keywords/geostationary-satellites","display_name":"geostationary satellites","score":0.9049999713897705},{"id":"https://openalex.org/keywords/satellite-refueling","display_name":"satellite refueling","score":0.8159999847412109},{"id":"https://openalex.org/keywords/trajectory-optimization","display_name":"trajectory optimization","score":0.7620000243186951},{"id":"https://openalex.org/keywords/neural-network","display_name":"artificial neural networks","score":0.8399999737739563},{"id":"https://openalex.org/keywords/evolutionary-algorithms","display_name":"evolutionary algorithms","score":0.9750000238418579},{"id":"https://openalex.org/keywords/propellant-mass-reduction","display_name":"propellant mass reduction","score":0.625},{"id":"https://openalex.org/keywords/mission-analysis","display_name":"mission analysis","score":0.4860000014305115}],"concepts":[{"id":"https://openalex.org/C2779968344","wikidata":"https://www.wikidata.org/wiki/Q3932925","display_name":"Rendezvous","level":3,"score":0.7753912210464478},{"id":"https://openalex.org/C16405173","wikidata":"https://www.wikidata.org/wiki/Q192316","display_name":"Geostationary orbit","level":3,"score":0.732762336730957},{"id":"https://openalex.org/C79420006","wikidata":"https://www.wikidata.org/wiki/Q533668","display_name":"Thrust","level":2,"score":0.6682532429695129},{"id":"https://openalex.org/C1034443","wikidata":"https://www.wikidata.org/wiki/Q2583685","display_name":"Propulsion","level":2,"score":0.6665641665458679},{"id":"https://openalex.org/C146978453","wikidata":"https://www.wikidata.org/wiki/Q3798668","display_name":"Aerospace engineering","level":1,"score":0.6294875144958496},{"id":"https://openalex.org/C29829512","wikidata":"https://www.wikidata.org/wiki/Q40218","display_name":"Spacecraft","level":2,"score":0.6283062696456909},{"id":"https://openalex.org/C3018325918","wikidata":"https://www.wikidata.org/wiki/Q663611","display_name":"Low earth orbit","level":3,"score":0.573155403137207},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5420002937316895},{"id":"https://openalex.org/C196644772","wikidata":"https://www.wikidata.org/wiki/Q3884964","display_name":"Orbit (dynamics)","level":2,"score":0.5292702913284302},{"id":"https://openalex.org/C13662910","wikidata":"https://www.wikidata.org/wiki/Q193139","display_name":"Trajectory","level":2,"score":0.5146502256393433},{"id":"https://openalex.org/C76737569","wikidata":"https://www.wikidata.org/wiki/Q1364934","display_name":"Propellant","level":2,"score":0.5030264258384705},{"id":"https://openalex.org/C154978347","wikidata":"https://www.wikidata.org/wiki/Q1579577","display_name":"Geocentric orbit","level":3,"score":0.46482542157173157},{"id":"https://openalex.org/C18949120","wikidata":"https://www.wikidata.org/wiki/Q275450","display_name":"Space debris","level":3,"score":0.4621136784553528},{"id":"https://openalex.org/C136643341","wikidata":"https://www.wikidata.org/wiki/Q1361526","display_name":"Reachability","level":2,"score":0.4594178795814514},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.2619197368621826},{"id":"https://openalex.org/C19269812","wikidata":"https://www.wikidata.org/wiki/Q26540","display_name":"Satellite","level":2,"score":0.22751930356025696},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.15773406624794006},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.0},{"id":"https://openalex.org/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"pmh:oai:elib.dlr.de:108193","doi":null,"is_oa":true,"landing_page_url":"https://elib.dlr.de/108193/1/Porat_MasterThesis_V2.pdf","pdf_url":"https://elib.dlr.de/108193/1/Porat_MasterThesis_V2.pdf","source":{"id":"https://openalex.org/S4377196266","display_name":"elib (German Aerospace Center)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I2898391981","host_organization_name":"Deutsches Zentrum f\u00fcr Luft- und Raumfahrt e. V. (DLR)","host_organization_lineage":["https://openalex.org/I2898391981"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Hochschulschrift"},{"id":"mag:2595519734","doi":null,"is_oa":false,"landing_page_url":"https://elib.dlr.de/108193/","pdf_url":null,"source":null,"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":null}],"best_oa_location":{"id":"pmh:oai:elib.dlr.de:108193","doi":null,"is_oa":true,"landing_page_url":"https://elib.dlr.de/108193/1/Porat_MasterThesis_V2.pdf","pdf_url":"https://elib.dlr.de/108193/1/Porat_MasterThesis_V2.pdf","source":{"id":"https://openalex.org/S4377196266","display_name":"elib (German Aerospace Center)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I2898391981","host_organization_name":"Deutsches Zentrum f\u00fcr Luft- und Raumfahrt e. V. (DLR)","host_organization_lineage":["https://openalex.org/I2898391981"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Hochschulschrift"},"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2595519734.pdf","grobid_xml":"https://content.openalex.org/works/W2595519734.grobid-xml"},"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W7124429209","https://openalex.org/W7156110305","https://openalex.org/W7154656575","https://openalex.org/W6964877545","https://openalex.org/W4405757073","https://openalex.org/W4407017803","https://openalex.org/W2560135561","https://openalex.org/W7140221517","https://openalex.org/W3137994358","https://openalex.org/W2911797534"],"abstract_inverted_index":{"In":[0,268,290],"recent":[1],"years,":[2],"the":[3,165,221,227,269,287,291,301,305,326,332,338,341,358,363,370,410,430,444,462,490],"topic":[4,40],"of":[5,51,105,110,128,154,168,182,217,223,229,238,249,259,307,334,357,369,372,381,446,464,469,489],"on-orbit":[6,71,139,157,449],"servicing":[7,14,72,140,158,258,450],"has":[8],"been":[9,95],"gaining":[10],"growing":[11],"attention.":[12],"On-orbit":[13],"relates":[15],"to":[16,64,76,79,122,132,209,265,280,362,409,420],"all":[17],"operations":[18],"carried":[19],"out":[20],"in":[21,62,120,245,300,304,316,379,396,415,427,429,437,467,480],"orbit":[22,178,279,283,303,328,408],"on":[23,38,44,348,492],"a":[24,52,55,84,134,174,180,188,235,246,250,281,294,317,393,398,404,441,465],"spacecraft":[25],"such":[26],"as":[27,484],"repair,":[28],"refueling,":[29],"assembly,":[30],"transport":[31],"etc.":[32],"Most":[33],"studies":[34],"done":[35,436],"so":[36],"far":[37],"this":[39,129,186,218,224,416,438,481],"have":[41,75,94],"focused":[42],"mainly":[43],"perfecting":[45],"autonomous":[46],"rendezvous":[47],"and":[48,67,262,314,329,340,366,385,455,473],"docking":[49],"maneuvers":[50],"servicer":[53,295,342,399],"attending":[54],"single":[56,85],"cooperative":[57],"or":[58,103],"non-cooperative":[59],"target.":[60],"However,":[61,226],"order":[63],"increase":[65],"efficiency":[66],"reduce":[68],"costs":[69],"future":[70,156],"missions":[73,102,351,451],"will":[74],"be":[77,421],"able":[78],"attend":[80],"multiple":[81],"clients":[82,339],"using":[83,143],"servicer.":[86],"Also,":[87],"highly":[88,175],"efficient":[89],"low-thrust":[90,144,211,373,447],"propulsion":[91,374,377],"systems,":[92],"which":[93,151,240,330,397,457],"used":[96],"until":[97],"now":[98],"only":[99],"for":[100,115,137,231,336,425,443,460],"deep-space":[101],"station-keeping":[104],"geostationary":[106,260,288,302,327,411,431],"satellites,":[107],"are":[108,152,275,346,360,458],"capable":[109],"providing":[111],"large":[112],"\u0394v":[113],"requirements":[114],"much":[116],"lower":[117],"propellant":[118,382,471],"mass":[119,383,472],"comparison":[121],"conventional":[123],"chemical":[124,376],"propulsion.":[125,145],"The":[126,160,215,253,355,389,413,433,477],"goal":[127],"research":[130],"is":[131,195,263,321,400,418],"provide":[133,367],"foundational":[135],"framework":[136,442,491],"multi-target":[138,448],"mission":[141,251,387,395,475],"analysis":[142,445],"This":[146,197],"thesis":[147,439],"investigates":[148,392],"three":[149],"scenarios,":[150],"representative":[153],"plausible":[155,493],"missions.":[159],"first":[161,270],"scenario":[162,219,255,391,466],"deals":[163,256],"with":[164,205,257,402],"active":[166],"removal":[167],"5":[169],"high-risk":[170],"debris":[171],"objects":[172],"from":[173,277,406],"congested":[176],"low-Earth":[177,407],"within":[179],"timeframe":[181],"one":[183],"year.":[184],"For":[185],"scenario,":[187],"novel":[189],"trajectory":[190,232],"optimization":[191,233],"program":[192,198],"called":[193],"InTrance":[194,230],"used.":[196],"utilizes":[199],"an":[200,206],"artificial":[201],"neural":[202],"network":[203],"together":[204],"evolutionary":[207],"algorithm":[208],"optimize":[210],"Earth-bound":[212],"transfer":[213],"trajectories.":[214],"simulations":[216,359],"confirm":[220],"feasibility":[222,463],"scenario.":[225],"use":[228,244],"requires":[234],"substantial":[236],"amount":[237],"time":[239],"might":[241],"render":[242],"its":[243],"conceptual":[247],"phase":[248],"impractical.":[252],"second":[254,292],"satellites":[261,274,299,428],"divided":[264],"two":[266],"sub-scenarios.":[267],"sub-scenario":[271,293],"10":[272],"client":[273],"removed":[276],"their":[278],"disposal":[282],"350":[284],"km":[285,324],"above":[286,325],"orbit.":[289,412,432],"refuels":[296],"24":[297],"operational":[298],"course":[306],"4":[308],"different":[309],"tours.":[310],"Each":[311],"tour":[312],"begins":[313],"ends":[315],"depot":[318],"station":[319],"that":[320],"placed":[322],"150":[323],"holds":[331],"reservoir":[333],"fuel":[335],"both":[337,378],"itself.":[343],"Both":[344],"sub-scenarios":[345],"based":[347],"similar":[349],"reference":[350,364],"investigated":[352,479],"by":[353],"NASA.":[354],"results":[356,365],"compared":[361],"confirmation":[368],"advantages":[371],"over":[375],"terms":[380,468],"consumption":[384],"total":[386,474],"time.":[388,476],"third":[390],"notional":[394],"assigned":[401],"delivering":[403],"payload":[405,414],"investigation":[417],"assumed":[419],"hardware":[422],"components":[423],"intended":[424],"replacement":[426],"inaugural":[434],"work":[435],"offers":[440],"including":[452],"procedures,":[453],"strategies":[454],"tools,":[456],"essential":[459],"assessing":[461],"required":[470],"scenarios":[478],"study":[482],"serve":[483],"exemplary,":[485],"albeit":[486],"archetypal,":[487],"implementations":[488],"scenarios.":[494]},"counts_by_year":[{"year":2018,"cited_by_count":1}],"updated_date":"2026-09-29T14:09:16.559479","created_date":"2017-03-23T00:00:00"}