Results 21 to 30 of about 54,135 (313)

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

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

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

Mean Orbital Elements of a Near-Circular Orbiting Artificial Satellite due to the Earth's Zonal Potentials [PDF]

open access: yesJournal of Astronomy and Space Sciences, 1988
The short and long periodic perturbations and secular perturbation due to the geopotentials of degree J2 and J3 which affect orbital elements of a near-circular satellite are obtained by the analytical method.
Pil-Ho Park, Kyu-Hong Choi
doaj  

New orbital elements of 5 interferometric double stars [PDF]

open access: yesSerbian Astronomical Journal, 1999
In this paper, for the first time, are presented elliptical and Thiel- Innes orbitatal elements for the following interferometric pairs: WDS 00416+2438 = WRH, WDS 03271+1845 = CHARA 10, WDS 04044+2406 = McA 13 Aa, WDS 17095+4047 = McA 45 and WDS
Olević D., Jovanović P.
doaj   +1 more source

Canonical Elements for Collision Orbits

open access: yesCelestial Mechanics and Dynamical Astronomy, 2001
I derive a set of canonical elements that are useful for collision orbits (perihelion distance approaching zero at fixed semimajor axis). The coordinates are the mean anomaly and the two spherical polar angles at aphelion.
openaire   +3 more sources

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