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Milliarcsecond Astrometry for the Galilean Moons Using Stellar Occultations

dc.contributor.authorMorgado, B. E.
dc.contributor.authorGomes-Júnior, A. R. [UNESP]
dc.contributor.authorBraga-Ribas, F.
dc.contributor.authorVieira-Martins, R.
dc.contributor.authorDesmars, J.
dc.contributor.authorLainey, V.
dc.contributor.authorD'Aversa, E.
dc.contributor.authorDunham, D.
dc.contributor.authorMoore, J.
dc.contributor.authorBaillié, K.
dc.contributor.authorHerald, D.
dc.contributor.authorAssafin, M.
dc.contributor.authorSicardy, B.
dc.contributor.authorAoki, S.
dc.contributor.authorBardecker, J.
dc.contributor.authorBarton, J.
dc.contributor.authorBlank, T.
dc.contributor.authorBruns, D.
dc.contributor.authorCarlson, N.
dc.contributor.authorCarlson, R. W.
dc.contributor.authorCobble, K.
dc.contributor.authorDunham, J.
dc.contributor.authorEisfeldt, D.
dc.contributor.authorEmilio, M.
dc.contributor.authorJacques, C.
dc.contributor.authorHinse, T. C.
dc.contributor.authorKim, Y.
dc.contributor.authorMalacarne, M.
dc.contributor.authorMaley, P. D.
dc.contributor.authorMaury, A.
dc.contributor.authorMeza, E.
dc.contributor.authorOliva, F.
dc.contributor.authorOrton, G. S.
dc.contributor.authorPereira, C. L.
dc.contributor.authorPerson, M.
dc.contributor.authorPlainaki, C.
dc.contributor.authorSfair, R. [UNESP]
dc.contributor.authorSindoni, G.
dc.contributor.authorSmith, M.
dc.contributor.authorSussenbach, E.
dc.contributor.authorStuart, P.
dc.contributor.authorVrolijk, J.
dc.contributor.authorWinter, O. C. [UNESP]
dc.contributor.institutionObservatório Nacional/MCTI
dc.contributor.institutionLaboratório Interinstitucional de E-Astronomia - LIneA
dc.contributor.institutionSorbonne Paris Cité
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionFederal University of Technology - Paraná (UTFPR/DAFIS)
dc.contributor.institutionUniversidade Federal do Rio de Janeiro (UFRJ)
dc.contributor.institutionInstitut Polytechnique des Sciences Avancées IPSA
dc.contributor.institutionUniversité Lille
dc.contributor.institutionINAF-IAPS
dc.contributor.institutionInternational Occultation Timing Association (IOTA)
dc.contributor.institutionInternational Occultation Timing Association/European Section
dc.contributor.institutionTrans-Tasman Occultation Alliance (TTOA)
dc.contributor.institutionJAXA
dc.contributor.institutionCalifornia Institute of Technology
dc.contributor.institutionUniversidade Estadual de Ponta Grossa (UEPG)
dc.contributor.institutionObservatório SONEAR
dc.contributor.institutionNicolaus Copernicus University
dc.contributor.institutionChungnam National University
dc.contributor.institutionChungbuk National University
dc.contributor.institutionUniversidade Federal do Espírito Santo (UFES)
dc.contributor.institutionNASA Johnson Space Center Astronomical Society
dc.contributor.institutionSPACE
dc.contributor.institutionCONIDA
dc.contributor.institutionMPC Code W73
dc.contributor.institutionMIT
dc.contributor.institutionASI
dc.contributor.institutionEberhard Karls Universität Tübingen
dc.contributor.institutionWillemstad
dc.contributor.institutionSpace and Nature Aruba Foundation
dc.date.accessioned2023-03-02T00:30:03Z
dc.date.available2023-03-02T00:30:03Z
dc.date.issued2022-01-01
dc.description.abstractA stellar occultation occurs when a Solar System object passes in front of a star for an observer. This technique allows the sizes and shapes of the occulting body to be determined with kilometer precision. In addition, this technique constrains the occulting body's positions, albedos, densities, and so on. In the context of the Galilean moons, these events can provide their best ground-based astrometry, with uncertainties in the order of 1 mas ( 1/43 km at Jupiter's distance during opposition). We organized campaigns and successfully observed a stellar occultation by Io (JI) in 2021, one by Ganymede (JIII) in 2020, and one by Europa (JII) in 2019, with stations in North and South America. We also re-analyzed two previously published events: one by Europa in 2016 and another by Ganymede in 2017. We then fit the known 3D shape of the occulting satellite and determine its center of figure. This resulted in astrometric positions with uncertainties in the milliarcsecond level. The positions obtained from these stellar occultations can be used together with dynamical models to ensure highly accurate orbits of the Galilean moons. These orbits can help when planning future space probes aiming at the Jovian system, such as JUICE by ESA and Europa Clipper by NASA. They also allow more efficient planning of flyby maneuvers.en
dc.description.affiliationObservatório Nacional/MCTI, R. General José Cristino 77
dc.description.affiliationLaboratório Interinstitucional de E-Astronomia - LIneA, Rua Gal. José Cristino 77 RJ
dc.description.affiliationLESIA Observatoire de Paris Université PSL CNRS Sorbonne Université Université Paris Diderot Sorbonne Paris Cité, 5 Place Jules Janssen
dc.description.affiliationUNESP São Paulo State University Grupo de Dinamica Orbital e Planetologia, SP
dc.description.affiliationFederal University of Technology - Paraná (UTFPR/DAFIS), Rua Sete de Setembro 3165, PR
dc.description.affiliationUniversidade Federal Do Rio de Janeiro - Observatório Do Valongo, Ladeira Pedro Antonio 43- RJ
dc.description.affiliationInstitut Polytechnique des Sciences Avancées IPSA, 63 Boulevard de Brandebourg
dc.description.affiliationIMCCE Observatoire de Paris PSL University CNRS Sorbonne Université Université Lille, 77 Av. Denfert-Rochereau
dc.description.affiliationIstituto Nazionale di Astrofisica-Istituto di Astrofisica e Planetologia Spaziali INAF-IAPS
dc.description.affiliationInternational Occultation Timing Association (IOTA), PO Box 20313
dc.description.affiliationInternational Occultation Timing Association/European Section, Am Brombeerhag 13
dc.description.affiliationTrans-Tasman Occultation Alliance (TTOA), PO Box 3181
dc.description.affiliationJapan Aerospace Exploration Agency JAXA
dc.description.affiliationJet Propulsion Laboratory California Institute of Technology
dc.description.affiliationUniversidade Estadual de Ponta Grossa (UEPG)
dc.description.affiliationObservatório SONEAR
dc.description.affiliationInstitute of Astronomy Faculty of Physics Astronomy and Informatics Nicolaus Copernicus University, Grudziadzka 5
dc.description.affiliationChungnam National University Department of Astronomy and Space Science
dc.description.affiliationDepartment of Astronomy and Space Science Chungbuk National University
dc.description.affiliationChungbuk National University Observatory Chungbuk National University
dc.description.affiliationUniversidade Federal Do Espírito Santo, Av. Fernando Ferrari 514, ES
dc.description.affiliationNASA Johnson Space Center Astronomical Society
dc.description.affiliationSan Pedro de Atacama Celestial Explorations SPACE
dc.description.affiliationComisión Nacional de Investigación y Desarrollo Aeroespacial Del Perú CONIDA
dc.description.affiliationObservatorio Astronómico de Moquegua MPC Code W73
dc.description.affiliationMIT
dc.description.affiliationAgenzia Spaziale Italiana ASI
dc.description.affiliationInstitut für Astronomie und Astrophysik Eberhard Karls Universität Tübingen, Auf der Morgenstelle 10
dc.description.affiliationPletterijweg Oost Willemstad, Curaçao
dc.description.affiliationSpace and Nature Aruba Foundation, Aruba
dc.description.affiliationUnespUNESP São Paulo State University Grupo de Dinamica Orbital e Planetologia, SP
dc.identifierhttp://dx.doi.org/10.3847/1538-3881/ac6108
dc.identifier.citationAstronomical Journal, v. 163, n. 5, 2022.
dc.identifier.doi10.3847/1538-3881/ac6108
dc.identifier.issn0004-6256
dc.identifier.scopus2-s2.0-85130073357
dc.identifier.urihttp://hdl.handle.net/11449/241839
dc.language.isoeng
dc.relation.ispartofAstronomical Journal
dc.sourceScopus
dc.titleMilliarcsecond Astrometry for the Galilean Moons Using Stellar Occultationsen
dc.typeArtigo
dspace.entity.typePublication
unesp.author.orcid0000-0003-0088-1808 0000-0003-0088-1808 0000-0003-0088-1808 0000-0003-0088-1808[1]
unesp.author.orcid0000-0002-3362-2127 0000-0002-3362-2127[2]
unesp.author.orcid0000-0003-2311-2438 0000-0003-2311-2438 0000-0003-2311-2438 0000-0003-2311-2438[3]
unesp.author.orcid0000-0002-5842-5867[7]
unesp.author.orcid0000-0002-8211-0777 0000-0002-8211-0777[12]
unesp.author.orcid0000-0003-1995-0842[13]
unesp.author.orcid0000-0001-8870-3146 0000-0001-8870-3146[26]
unesp.author.orcid0000-0003-1000-8113 0000-0003-1000-8113 0000-0003-1000-8113[34]
unesp.author.orcid0000-0002-4939-013X 0000-0002-4939-013X[37]
unesp.author.orcid0000-0002-4901-3289[43]
unesp.departmentMatemática - FEGpt

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