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Browsing by Author "Churkin K."

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Analysis of 430322 lunar occultations

Demina N.; Nefedyev Y.; Churkin K.; Demin S.; Andreev A. (2017)

© SGEM2017 All Rights Reserved. In the present work for the first time in the world practice 430322 occultations of stars by the Moon are analyzed. The relevance of the work is that the accuracy analysis of stars' proper ...
Lorentzian' analysis of the accuracy of modern catalogues of stellar positions

Varaksina N.; Nefedyev Y.; Churkin K.; Zabbarova R.; Demin S. (2015)

© Published under licence by IOP Publishing Ltd. There is a new approach for the estimation of the position accuracy and proper motions of the stars in astrometric catalogues by comparison of the stars' positions in the ...
Selenocentric reference coordinates net in the dynamic system

Varaksina N.; Nefedyev Y.; Churkin K.; Zabbarova R.; Demin S. (2015)

© Published under licence by IOP Publishing Ltd. In this work, the selenocentric dynamic reference net was developed for the first time in the field of selendesy in order to address problems with space navigation. Three ...
Studies of Modern Star Catalogs Based on Photoelectric Observations of Lunar Occultations of Stars

Churkin K.; Andreev A.; Nefedyev Y.; Petrova N.; Demina N. (2018)

© 2018, Pleiades Publishing, Ltd. An important area of investigation in astronomy is the relationship between fundamental and dynamical coordinate systems. Valuable material for such studies is provided by photoelectric ...
The fractal method for analysis of macro models of the celestial bodies surface

Andreev A.; Demina N.; Demin S.; Nefedyev Y.; Churkin K. (2016)

© 2016, Education and Upbringing Publishing. All rights reserved.In case of building a model of physical surface of celestial body scientists are dealing with a system of parameters whose precision depends on an order of ...
The method of determining the orientation of dynamic coordinate system in relation to HCRF

Andreev A.; Churkin K.; Nefedyev Y.; Demina N.; Borovskih V. (2019)

© SGEM 2019. As known, all GIS (geographic information system) coordinate systems tied to the dynamic coordinate system. In this paper, the method of determining the orientation of the dynamic coordinate system in relation ...
The multifactorial simulation of assessing the accuracy of modern star catalogues

Andreev A.; Nefedyev Y.; Churkin K.; Demina N.; Borovskih V. (2019)

© SGEM2019. This paper focuses on the creation of accurate methods for analyzing star catalogues. The method is based on the multifactorial comparison between coordinates and proper motion from the catalogs studied and the ...
The study of the lunar macro-figure models using multi-parametric harmonic analysis and expansion in spherical functions

Andreeva Z.; Nefedyev Y.; Andreev A.; Demina N.; Churkin K. (2017)

© SGEM2017 All Rights Reserved. The present work is focusing on construction and analysis of 5 lunar models using space and ground observations. Firstly, it should be noted that the task of building a model of the lunar ...
The use of huber’s method for estimating libration selenographic parameters

Churkin K.; Nefedyev Y. (2021)

Currently, cyber-physical systems and technologies are successfully used while implementing space missions and creating coordinate and time reference systems. To solve the problems of spatial orientation and to apply ...

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Browsing by Author "Churkin K."

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