Department of Space Engineering and Technology
L.N. Gumilyov Eurasian National University
Saint Petersburg State University
Astrodynamics of spacecrafts
It is planned to continue the work begun in the paper An effective method for detecting satellite orbital maneuvers and its application to LEO satellites, published in Advances in Aircraft and Spacecrfaft Science. An International Journal, Vol. 9, No. 4, July 2022, pages 279-300. https://www.techno-press.org/content/?page=article&journal=aas&volume=9&num=4&ordernum=1 https://doi.org/10.12989/aas.2022.9.4.279 In addition, it is assumed that on the basis of this method, a service for monitoring satellite maneuvers to be created
F. U. Botirov, S. N. Nuritdinov, and A. E. Ashurov Pleiades Publishing Ltd
A. E. Ashurov American Astronomical Society
The number of stellar encounters in a globular cluster per unit time, with given changes in energy and direction of motion relative to the cluster center, has been determined assuming an anisotropic field star distribution function. An exact expression for the integrated probability of such encounters is derived for the case of equal-mass stars, and ranges of physical variables are analyzed. The distributions of the probability and number of encounters in a globular cluster with and without a black hole in the Plummer and King models are also studied. It is shown that the influence of the black hole on the probability distribution almost vanishes at the distance r0 ≈ 1.55rc, where rc is the core radius of the cluster. Moreover, in the area of radius (2–3)r0 strong encounters are significant and the Fokker-Planck approximation cannot be used for modeling the dynamical evolution of globular clusters. The method is developed for determining the probability of distant (weak), as well as close, encounters and for studying the dynamical evolution of globular clusters in the space of the energy integral (E) and angular momentum per unit mass (J) under close encounters.
An effective method for detecting satellite orbital maneuvers and its application to LEO satellites, published in Advances in Aircraft and Spacecrfaft Science. An International Journal, Vol. 9, No. 4, July 2022, pages 279-300.