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Open Astronomy

formerly Baltic Astronomy

Editor-in-Chief: Barbuy, Beatriz


IMPACT FACTOR 2018: 0.350

CiteScore 2018: 0.24

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Source Normalized Impact per Paper (SNIP) 2018: 0.144

ICV 2017: 121.03

Open Access
Online
ISSN
2543-6376
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Volume 27, Issue 1

Issues

Features of geosynchronous space objects motion near 75oE

Nail Bakhtigaraev
  • Institute of Astronomy of the Russian Academy of Sciences, 119017, Pyatnitskaya str., 48, Moscow, Russian Federation
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/ Polina Levkina
  • Institute of Astronomy of the Russian Academy of Sciences, 119017, Pyatnitskaya str., 48, Moscow, Russian Federation
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/ Lidiya Rykhlova
  • Institute of Astronomy of the Russian Academy of Sciences, 119017, Pyatnitskaya str., 48, Moscow, Russian Federation
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/ Alexander Sergeev / Gulchekhra Kokhirova
  • Institute of Astrophysics of the Academy of Sciences of Tajikistan Republic, 734042, Bukhoro Str., 22, Dushanbe, Tajikistan
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/ Vadim Chazov
  • Sternberg Astronomical Institute of Moscow State University, 119234, Universitetsky pr., 13, Moscow, Russian Federation
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Published Online: 2018-07-05 | DOI: https://doi.org/10.1515/astro-2018-0024

Abstract

Spacecrafts in geostationary orbit are subject to a complex set of disturbances that involve changes in orbital parameters. Corrections to the orbit are regularly carried out to keep the satellite at a given point of standing. The geostationary satellites must be moved to the disposal orbit after finishing their service life. Otherwise they begin to move towards the nearest stable point of libration and to make oscillatory movements in longitude, regularly approaching different satellites, which creates a threat of collision. The theory of motion for large space objects is well developed and their movement is predictable. However, small-sized fragments of space debris, are highly susceptible to difficult-to-predict non-gravitational disturbances. It is important to study the orbital motion of space objects that perform libration movements near 75∘E,where the majority of Russian working geostationary satellites are located. Optical measurements at observatories in Zvenigorod, at the Terskol peak and on Sanglokh Mount (Tajikistan) of some of the librational geosynchronous objects were performed. Results of the analysis of some of the geosynchronous small-sized fragments are given.

Keywords : optical observations of space debris; geostationary orbit; area-to-mass ratio

References

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About the article

Received: 2017-11-16

Accepted: 2018-01-30

Published Online: 2018-07-05


Citation Information: Open Astronomy, Volume 27, Issue 1, Pages 139–143, ISSN (Online) 2543-6376, DOI: https://doi.org/10.1515/astro-2018-0024.

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© 2018 Nail Bakhtigaraev et al.. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License. BY-NC-ND 4.0

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