Astrometric Results for Observations of Jupiter’s Galilean Satellites During Mutual Occultations and Eclipses in 2009 and 2014–2015

N. V. Emel’yanov; J.-E. Arlot; X. L. Zhang; J. Bradshaw; P. De Cat; X. L. Han; A. Ivantsov; J. Jindra; N. Maigurova; J. Manek; T. Pauwels; A. Pomazan; P. Vingerhoets

doi:10.1134/S0038094619060017

Astrometric Results for Observations of Jupiter’s Galilean Satellites During Mutual Occultations and Eclipses in 2009 and 2014–2015

Autores: Emel’yanov N.V.¹^,2, Arlot J.², Zhang X.L.³^,4^,5, Bradshaw J.⁶, De Cat P.⁷, Han X.L.⁸, Ivantsov A.⁹, Jindra J.¹⁰, Maigurova N.¹¹, Manek J.¹², Pauwels T.⁷, Pomazan A.¹¹, Vingerhoets P.¹³
Afiliações:
1. Sternberg Astronomical Institute, Moscow State University
2. Institut de mécanique céleste et de calcul des éphémérides–Observatoire de Paris
3. Yunnan Observatories (YNAO), Chinese Academy of Sciences
4. Key Laboratory of the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences
5. CAS Key Laboratory of Planetary Sciences
6. Samford Valley
7. Koninklijke Sterrenwacht van België
8. Butler University
9. Space Sciences and Technologies Department, Science Faculty, Akdeniz University
10. Czech Astronomical Society
11. Nikolaev Astronomical Observatory
12. Czech Astronomical Society–Occultation Section
13. Werkgroep bedekkingen van de VVS
Edição: Volume 53, Nº 6 (2019)
Páginas: 436-442
Seção: Article
URL: https://journal-vniispk.ru/0038-0946/article/view/171407
DOI: https://doi.org/10.1134/S0038094619060017
ID: 171407

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Photometric observations of satellites during their mutual occultations and eclipses are a valuable source of astrometric data for studying the motion of natural planetary satellites. Worldwide photometric observation campaigns are organized in order to observe as many phenomena as possible. All the photometric results obtained during such an observation campaign are stored in a single database, and after some time, they undergo astrometric processing. After conducting the campaign and publishing the results, some observers find unused data, which appear valuable. We have collected these photometric observations of mutual occultations and eclipses of Jupiter’s Galilean satellites and processed them to utilize these valuable astrometric data. To obtain astrometric data from the photometric observations, we have applied our original method. The observations come from eight observatories worldwide. As a result, this work presents 32 new relative astrometric positions of Jupiter’s Galilean satellites in 2009 and 23 new positions in 2014–2015. The astrometric accuracy of the new data in comparison with the most developed theory (O–C) is approximately 0.05′′. The internal accuracy, based on estimates for random photometry errors, is 0.02′′.

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planetary satellites, observations, photometry, astrometry

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Astrometric Results for Observations of Jupiter’s Galilean Satellites During Mutual Occultations and Eclipses in 2009 and 2014–2015

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Resumo

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Sobre autores

N. Emel’yanov

J.-E. Arlot

X. Zhang

J. Bradshaw

P. De Cat

X. Han

A. Ivantsov

J. Jindra

N. Maigurova

J. Manek

T. Pauwels

A. Pomazan

P. Vingerhoets

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