APPROX – Mutual approximations between the Galilean moons: The 2016–2018 observational campaign
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , , , , , , , , , , , , , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1093/mnras/sty3040 http://hdl.handle.net/11449/190089 |
Resumo: | The technique of mutual approximations accurately gives the central instant of the maximum apparent approximation of two moving natural satellites in the plane of the sky. This can be used in ephemeris fitting to infer the relative positions of satellites with high precision. Only mutual phenomena – occultations and eclipses – can achieve better results. However, mutual phenomena only occur every six years in the case of Jupiter. Mutual approximations do not have this restriction and can be observed at any time in the year as long as the satellites are visible. In this work, we present 104 central instants determined from the observations of 66 mutual approximations between the Galilean moons carried out at different sites in Brazil and France during the period 2016–2018. For 28 events, we have at least two independent observations. All telescopes were equipped with a narrow-band filter centred at 889 nm with a width of 15 nm to eliminate the scattered light from Jupiter. The telescope apertures ranged between 25 and 120 cm. For comparison, the precision of the positions obtained with classical CCD astrometry is about 100 mas, for mutual phenomena it can be 10 mas or less, and the average internal precision obtained with mutual approximations is 11.3 mas. This new type of simple, yet accurate, observations can significantly improve the orbits and ephemeris of Galilean satellites and thus it can be very useful for the planning of future space missions to the Jovian system. |
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APPROX – Mutual approximations between the Galilean moons: The 2016–2018 observational campaignAstrometryMethods: data analysisPlanetsPlanets and satellites: individual: callistoPlanets and satellites: individual: europaPlanets and satellites: individual: ganymedeSatellites: individual: ioThe technique of mutual approximations accurately gives the central instant of the maximum apparent approximation of two moving natural satellites in the plane of the sky. This can be used in ephemeris fitting to infer the relative positions of satellites with high precision. Only mutual phenomena – occultations and eclipses – can achieve better results. However, mutual phenomena only occur every six years in the case of Jupiter. Mutual approximations do not have this restriction and can be observed at any time in the year as long as the satellites are visible. In this work, we present 104 central instants determined from the observations of 66 mutual approximations between the Galilean moons carried out at different sites in Brazil and France during the period 2016–2018. For 28 events, we have at least two independent observations. All telescopes were equipped with a narrow-band filter centred at 889 nm with a width of 15 nm to eliminate the scattered light from Jupiter. The telescope apertures ranged between 25 and 120 cm. For comparison, the precision of the positions obtained with classical CCD astrometry is about 100 mas, for mutual phenomena it can be 10 mas or less, and the average internal precision obtained with mutual approximations is 11.3 mas. This new type of simple, yet accurate, observations can significantly improve the orbits and ephemeris of Galilean satellites and thus it can be very useful for the planning of future space missions to the Jovian system.Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Observatório Nacional/MCTIC, R. General José Cristino 77Laboratório Interinstitucional de e-Astronomia - LIneA, Rua Gal. José Cristino 77Observatório do Valongo/UFRJ, Ladeira Pedro Antonio 43Universidade Estadual do Oeste do Paraná (Unioeste), Avenida Tarquínio Joslin dos Santos 1300Polo Astronômico Casimiro Montenegro Filho/FPTI-BR, Avenida Tancredo Neves 6731UNESP - São Paulo State University Grupo de Dinâmica Orbital e Planetologia, CEP 12516-410Universidade Federal do Espírito Santo, Av. Fernando Ferrari 514Federal University of Technology - Paraná (UTFPR/DAFIS), Av. Sete de Setembro, 3165Institut Polytechnique des Sciences Avancées IPSA, 63 bis Boulevard de BrandebourgIMCCE Observatoire de Paris PSL Research University CNRS-UMR 8028 Sorbonne Universités UPMC Univ. Lille 1, 77 Av. Denfert-RochereauEscola SESC de Ensino Médio, Avenida Ayrton Senna, 5677Jet Propulsion Laboratory California Institute of Technology, 4800 Oak Grove DriveUNESP - São Paulo State University Grupo de Dinâmica Orbital e Planetologia, CEP 12516-410FAPERJ: -26/111.488/2013CNPq: 2016/24561-0CNPq: 305737/2015-5CNPq: 308150/2016-3CNPq: 308721/2011-0CNPq: 309578/2017-5CNPq: 312813/2013-9CNPq: 394/2016-05CNPq: 465376/2014-2CNPq: 473002/2013-2CNPq: CAPES/Cofecub-2506/2015CNPq: CNPq-306885/2013Observatório Nacional/MCTICLaboratório Interinstitucional de e-Astronomia - LIneAUniversidade Federal do Rio de Janeiro (UFRJ)Universidade Estadual do Oeste do Paraná (Unioeste)Polo Astronômico Casimiro Montenegro Filho/FPTI-BRUniversidade Estadual Paulista (Unesp)Universidade Federal do Espírito Santo (UFES)Federal University of Technology - Paraná (UTFPR/DAFIS)Institut Polytechnique des Sciences Avancées IPSAUniv. Lille 1Escola SESC de Ensino MédioCalifornia Institute of TechnologyMorgado, B.Vieira-Martins, R.Assafin, M.Machado, D. I.Camargo, J. I.B.Sfair, R. [UNESP]Malacarne, M.Braga-Ribas, F.Robert, V.Bassallo, T.Benedetti-Rossi, G.Boldrin, L. A. [UNESP]Borderes-Motta, G. [UNESP]Camargo, B. C.B. [UNESP]Crispim, A.Dias-Oliveira, A.Gomes-Júnior, A. R. [UNESP]Lainey, V.Miranda, J. O.Moura, T. S. [UNESP]Ribeiro, F. K.De Santana, T. [UNESP]Santos-Filho, S.Trabuco, L. L.Winter, O. C. [UNESP]Yamashita, T. A.R. [UNESP]2019-10-06T17:01:51Z2019-10-06T17:01:51Z2019-02-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article5190-5200http://dx.doi.org/10.1093/mnras/sty3040Monthly Notices of the Royal Astronomical Society, v. 482, n. 4, p. 5190-5200, 2019.1365-29660035-8711http://hdl.handle.net/11449/19008910.1093/mnras/sty30402-s2.0-85061079284Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengMonthly Notices of the Royal Astronomical Societyinfo:eu-repo/semantics/openAccess2024-07-02T14:29:32Zoai:repositorio.unesp.br:11449/190089Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-06T00:05:51.067732Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
APPROX – Mutual approximations between the Galilean moons: The 2016–2018 observational campaign |
title |
APPROX – Mutual approximations between the Galilean moons: The 2016–2018 observational campaign |
spellingShingle |
APPROX – Mutual approximations between the Galilean moons: The 2016–2018 observational campaign Morgado, B. Astrometry Methods: data analysis Planets Planets and satellites: individual: callisto Planets and satellites: individual: europa Planets and satellites: individual: ganymede Satellites: individual: io |
title_short |
APPROX – Mutual approximations between the Galilean moons: The 2016–2018 observational campaign |
title_full |
APPROX – Mutual approximations between the Galilean moons: The 2016–2018 observational campaign |
title_fullStr |
APPROX – Mutual approximations between the Galilean moons: The 2016–2018 observational campaign |
title_full_unstemmed |
APPROX – Mutual approximations between the Galilean moons: The 2016–2018 observational campaign |
title_sort |
APPROX – Mutual approximations between the Galilean moons: The 2016–2018 observational campaign |
author |
Morgado, B. |
author_facet |
Morgado, B. Vieira-Martins, R. Assafin, M. Machado, D. I. Camargo, J. I.B. Sfair, R. [UNESP] Malacarne, M. Braga-Ribas, F. Robert, V. Bassallo, T. Benedetti-Rossi, G. Boldrin, L. A. [UNESP] Borderes-Motta, G. [UNESP] Camargo, B. C.B. [UNESP] Crispim, A. Dias-Oliveira, A. Gomes-Júnior, A. R. [UNESP] Lainey, V. Miranda, J. O. Moura, T. S. [UNESP] Ribeiro, F. K. De Santana, T. [UNESP] Santos-Filho, S. Trabuco, L. L. Winter, O. C. [UNESP] Yamashita, T. A.R. [UNESP] |
author_role |
author |
author2 |
Vieira-Martins, R. Assafin, M. Machado, D. I. Camargo, J. I.B. Sfair, R. [UNESP] Malacarne, M. Braga-Ribas, F. Robert, V. Bassallo, T. Benedetti-Rossi, G. Boldrin, L. A. [UNESP] Borderes-Motta, G. [UNESP] Camargo, B. C.B. [UNESP] Crispim, A. Dias-Oliveira, A. Gomes-Júnior, A. R. [UNESP] Lainey, V. Miranda, J. O. Moura, T. S. [UNESP] Ribeiro, F. K. De Santana, T. [UNESP] Santos-Filho, S. Trabuco, L. L. Winter, O. C. [UNESP] Yamashita, T. A.R. [UNESP] |
author2_role |
author author author author author author author author author author author author author author author author author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Observatório Nacional/MCTIC Laboratório Interinstitucional de e-Astronomia - LIneA Universidade Federal do Rio de Janeiro (UFRJ) Universidade Estadual do Oeste do Paraná (Unioeste) Polo Astronômico Casimiro Montenegro Filho/FPTI-BR Universidade Estadual Paulista (Unesp) Universidade Federal do Espírito Santo (UFES) Federal University of Technology - Paraná (UTFPR/DAFIS) Institut Polytechnique des Sciences Avancées IPSA Univ. Lille 1 Escola SESC de Ensino Médio California Institute of Technology |
dc.contributor.author.fl_str_mv |
Morgado, B. Vieira-Martins, R. Assafin, M. Machado, D. I. Camargo, J. I.B. Sfair, R. [UNESP] Malacarne, M. Braga-Ribas, F. Robert, V. Bassallo, T. Benedetti-Rossi, G. Boldrin, L. A. [UNESP] Borderes-Motta, G. [UNESP] Camargo, B. C.B. [UNESP] Crispim, A. Dias-Oliveira, A. Gomes-Júnior, A. R. [UNESP] Lainey, V. Miranda, J. O. Moura, T. S. [UNESP] Ribeiro, F. K. De Santana, T. [UNESP] Santos-Filho, S. Trabuco, L. L. Winter, O. C. [UNESP] Yamashita, T. A.R. [UNESP] |
dc.subject.por.fl_str_mv |
Astrometry Methods: data analysis Planets Planets and satellites: individual: callisto Planets and satellites: individual: europa Planets and satellites: individual: ganymede Satellites: individual: io |
topic |
Astrometry Methods: data analysis Planets Planets and satellites: individual: callisto Planets and satellites: individual: europa Planets and satellites: individual: ganymede Satellites: individual: io |
description |
The technique of mutual approximations accurately gives the central instant of the maximum apparent approximation of two moving natural satellites in the plane of the sky. This can be used in ephemeris fitting to infer the relative positions of satellites with high precision. Only mutual phenomena – occultations and eclipses – can achieve better results. However, mutual phenomena only occur every six years in the case of Jupiter. Mutual approximations do not have this restriction and can be observed at any time in the year as long as the satellites are visible. In this work, we present 104 central instants determined from the observations of 66 mutual approximations between the Galilean moons carried out at different sites in Brazil and France during the period 2016–2018. For 28 events, we have at least two independent observations. All telescopes were equipped with a narrow-band filter centred at 889 nm with a width of 15 nm to eliminate the scattered light from Jupiter. The telescope apertures ranged between 25 and 120 cm. For comparison, the precision of the positions obtained with classical CCD astrometry is about 100 mas, for mutual phenomena it can be 10 mas or less, and the average internal precision obtained with mutual approximations is 11.3 mas. This new type of simple, yet accurate, observations can significantly improve the orbits and ephemeris of Galilean satellites and thus it can be very useful for the planning of future space missions to the Jovian system. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-10-06T17:01:51Z 2019-10-06T17:01:51Z 2019-02-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1093/mnras/sty3040 Monthly Notices of the Royal Astronomical Society, v. 482, n. 4, p. 5190-5200, 2019. 1365-2966 0035-8711 http://hdl.handle.net/11449/190089 10.1093/mnras/sty3040 2-s2.0-85061079284 |
url |
http://dx.doi.org/10.1093/mnras/sty3040 http://hdl.handle.net/11449/190089 |
identifier_str_mv |
Monthly Notices of the Royal Astronomical Society, v. 482, n. 4, p. 5190-5200, 2019. 1365-2966 0035-8711 10.1093/mnras/sty3040 2-s2.0-85061079284 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Monthly Notices of the Royal Astronomical Society |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
5190-5200 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
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1808129582049525760 |