Results 31 to 40 of about 3,755,242 (236)

Comparison of various mathematical models on the example of solving the equations of the movement of large planets and the Moon

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2019
In this paper, we study the accuracy of solving various differential equations describing the motion of large planets, the Moon and Sun. On the time interval from 31 years BC to 3969 AD, the numerical integration of Newtonian relativistic differential ...
Anatoliy Fedorovich Zausaev   +1 more
doaj   +1 more source

The investigation of the motion of planets, the Moon, and the Sun based on a new principle of interaction

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2014
A new principle of interaction of the surrounding space with material bodies is investigated. Under the surrounding space we understand the physical vacuum, whose properties are currently still in the formative stage.
Anatoliy F Zausaev
doaj   +1 more source

Design and Simulation of Stellar Occultation Infrared Band Constellation

open access: yesRemote Sensing, 2022
This study provides an in-depth analysis of the characteristics of stellar occultation events. Using 10 target star sources, the influence of orbital elements on the number, duration, and distribution of stellar occultation events was simulated and ...
Qinglin Zhu   +3 more
doaj   +1 more source

Tidal and rotational effects in the perturbations of hierarchical triple stellar systems. II. Eccentric systems - the case of AS Camelopardalis [PDF]

open access: yes, 2007
We study the perturbations of a relatively close third star on a tidally distorted eccentric eclipsing binary. We consider both the observational consequences of the variations of the orbital elements and the interactions of the stellar rotation with the
Borkovits   +25 more
core   +2 more sources

A method for the fast MOID computation for two confocal heliocentric orbits

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2014
The paper is on the problem of classification an asteroid as potentially hazardous (PHA), namely the estimation of the MOID parameter. Minimum Orbital Intersection Distance describes the minimal distance between two confocal heliocentric orbits ...
Andrey E Derevyanka
doaj   +1 more source

Application of the mathematical models used for estimating the impact probability of asteroids 99942 Apophis and 2011 AG5

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2013
Methods for estimating the impact probability of asteroids 99942 Apophis and 2011 AG5 were implemented. The probability of a collision was assessed using two methods: The Monte Carlo method (statistical experiments), and as a ratio between the interval ...
Andrey E Derevyanka
doaj   +1 more source

Trajectory Planning for Optical Satellite’s Continuous Surveillance of Geostationary Spacecraft

open access: yesIEEE Access, 2021
This paper focuses on the trajectory planning that optical satellites approach the geostationary (GEO) spacecraft and the trajectory planning that the optical satellite flies around the GEO spacecraft for continuous surveillance of the GEO spacecraft The
Haitao Zhang   +4 more
doaj   +1 more source

Vortex beam: generation and detection of orbital angular momentum [Invited]

open access: yesChinese Optics Letters (COL), 2022
Recent advances in the research of vortex beams, structured beams carrying orbital angular momentum (OAM), have revolutionized the applications of light beams, such as advanced optical manipulations, high-capacity optical communications, and super ...
Yihua Bai   +3 more
semanticscholar   +1 more source

Twisted-light-induced intersubband transitions in quantum wells at normal incidence [PDF]

open access: yes, 2013
We examine theoretically the intersubband transitions induced by laser beams of light with orbital angular momentum (twisted light) in semiconductor quantum wells at normal incidence. These transitions become possible in the absence of gratings thanks to
Quinteiro, G. F.   +2 more
core   +2 more sources

Orbital Uncertainty Propagation Based on Adaptive Gaussian Mixture Model under Generalized Equinoctial Orbital Elements

open access: yesRemote Sensing, 2023
The number of resident space objects (RSOs) has been steadily increasing over time, posing significant risks to the safe operation of on-orbit assets. The accurate prediction of potential collision events and implementation of effective and nonredundant ...
Hui Xie   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy