Sources and Databases for the Study of the Dynamics of Moons of Asteroids

Emel'Yanov, N. V.; Vashkov'yak, S. N.; Ural'Skaya, V. S.

doi:10.1134/s0038094618030061

Cited by 5 publications

(13 citation statements)

References 2 publications

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“…We used astrometric observations from two sources. The first source is the ABIN data base of all published astrometric observations of moons of asteroids (Emel'yanov et al 2018). This data base is regularly updated with new publications of observations.…”

Section: O B S E Rvat I O N Smentioning

confidence: 99%

“…We suggest a different process. An aggregate data base ABIN of all observations has been created (Emel'yanov, Vashkov'yak & Ural'skaya 2018) containing all the bibliographic references for the sources. This data base is freely accessible on the Internet at the Sternberg Astronomical Institute Moscow State University site 1 and at the mirror site hosted by the Institut de Mécanique Céleste et de Calcul des Éphémérides (IMCCE).…”

Section: Introductionmentioning

confidence: 99%

“…Nevertheless, it is best to credit the people who first did the work. Without trying to find out who was the first to publish a discovery of an asteroid's moon, we mention here the publications of the earliest observations included in the ABIN data base (Emel'yanov et al 2018).…”

Section: Introductionmentioning

confidence: 99%

“…3 as a composite of individual observations made from 1998 November 1-10. The exact dates of observations were not given in this paper although they are included in the ABIN data base (Emel'yanov et al 2018) to confirm that the observations were made and published. Storrs et al (2001) reported the discovery of an apparent companion to (107) Camilla in Hubble Space Telescope (HST) images made during March 1.242-1.252 UT.…”

Section: Introductionmentioning

confidence: 99%

“…We used observations from two sources of information. The main source is the ABIN data base (the data base of all published astrometric observations of moons of asteroids; Emel'yanov et al 2018). Another source of observational data is presented on the web page 'Orbit Status of Known Binary TNOs'.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Determination of the orbits of 62 moons of asteroids based on astrometric observations.

Emel'Yanov

Drozdov

2020

Monthly Notices of the Royal Astronomical Society

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Based on all published astrometric observations, we have determined the moon orbits for asteroids using a model of the fixed Keplerian orbit. We applied 5–114 observations for each moon. As a result, we have determined the orbits of 62 moons. All results, including the orbital parameters obtained, are presented in the tables that are provided as supplementary material, available online. These data can be used to calculate the ephemerides of the moons of the asteroids. Among the moons considered, 13 belong to asteroids of the main asteroid belt, two are the moons of Jupiter Trojan asteroids, while the rest are trans-Neptunian objects. Our results are in good agreement with the corresponding results published in the literature. We argue that reliable estimates of the accuracy for the ephemerides can be only made using parameter covariance matrices. These matrices that we have obtained are also given in the supporting information.

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Section: O B S E Rvat I O N Smentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Determination of the orbits of 62 moons of asteroids based on astrometric observations.

Emel'Yanov

Drozdov

2020

Monthly Notices of the Royal Astronomical Society

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Determining the orbit from five relative apparent positions

Emel'Yanov

Kondratyev

2022

Icarus

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OUP accepted manuscript

Emel'Yanov

Safonov

Kupreeva

2019

MNRAS

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The aim of this article is to determine the dynamical parameters of the asteroid ( 22) Kalliope with its satellite Linus, based on astrometric observations of this system. We use a model of the motion taking into account the gravitational influence of the primary's axisymmetric non-sphericity. This factor leads to precession of the line of apsides of the satellite, as well as precession of its orbit around the primary's axis of symmetry. The axisymmetric gravitational field of the primary is formed by the time-averaged field of the fast-rotating body of Kalliope. All available observations of the Kalliope-Linus system were divided into groups, each containing observations close in time. For each group, parameters of the fixed Keplerian orbit were determined. Thus, the behaviour of the satellite's orbit axis over about 16-yr time intervals was studied. Contrary to the expected uniform precession of the orbital plane, we discovered abnormal prograde motion of the ascending node in the first seven years, which became retrograde in the next nine years. The amplitude of the change is about 120 • . We make an attempt to explain such motion by effects not taken into account in the adopted dynamical model. It is shown that effects not taken into account cannot explain the oscillatory motion of the orbital node found. Using 121 available observations, two formal solutions for all fitted parameters were determined.

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Sources and Databases for the Study of the Dynamics of Moons of Asteroids

Cited by 5 publications

References 2 publications

Determination of the orbits of 62 moons of asteroids based on astrometric observations.

Determination of the orbits of 62 moons of asteroids based on astrometric observations.

Determining the orbit from five relative apparent positions

OUP accepted manuscript

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