Results 11 to 20 of about 174,880 (353)

Initial Identification of Thrust and Orbit Elements for Continuous Thrust Spacecraft in Circular Orbit

open access: yesAerospace, 2023
Continuous thrust spacecraft in circular orbits have had a great influence on the identification and cataloging of space targets. Gaussian-type orbital element variational equations are simplified and approximated. Ground-based radar observation datasets
Shuailong Zhao, Xuefeng Tao, Zhi Li
doaj   +1 more source

SUPERPOSITION OF WEYL SOLUTIONS: CIRCULAR ORBITS [PDF]

open access: yesInternational Journal of Modern Physics D, 2004
Circular orbits are examined in static spacetimes belonging to the Weyl class of vacuum solutions which represent (nonlinear) superposition of the gravitational fields generated by certain collinear distributions of matter. In particular, solutions representing two and three Chazy–Curzon particles — all of them endowed with conical singularities — are
Bini D, Geralico A
openaire   +4 more sources

Analytical Estimation of Time Dilation of a Satellite in Elliptical Orbit [PDF]

open access: yesINCAS Bulletin, 2018
This article describes the analytical estimation of time dilation along the elliptical orbit of a satellite due to effects of relativity where the functioning has been time-dependent.
G. PRASAD, P. MANIGANDAN
doaj   +1 more source

Single‐step geolocation for a non‐circular source in the presence of satellite orbit perturbations

open access: yesIET Signal Processing, 2022
This study addresses the problem of geolocating a strictly non‐circular source on the surface of Earth by a cluster of passive satellites. The known satellite positions and velocities are subject to random errors.
Jiexin Yin   +3 more
doaj   +1 more source

The stability of orbit of a planet in the field of binary stars

open access: yesPhysical Sciences and Technology, 2021
In the paper, we consider the motion of a planet in the field of the binary stars in the theory of generalrelativity (GR), when all bodies have their own rotation. We consider that the third body moves in the planof massive two bodies.
S. Toktarbay, A. Talkhat, A. Orazymbet
doaj   +1 more source

Continuous thrust tangential or perpendicular to the flight direction on a given transfer trajectory in planar Circular Restricted 3-Body Problem [PDF]

open access: yesINCAS Bulletin, 2011
This paper presents a systematic study for analytical determination of thrust acceleration magnitude on a given trajectory for a case where the thrust is tangential or perpendicular to the flight direction.
Mircea DUMITRACHE
doaj   +1 more source

Circular Orbit Flip Trajectories Generated by E-Sail

open access: yesApplied Sciences, 2023
An Electric Solar Wind Sail (E-sail) is a propellantless propulsion concept that extracts momentum from the high-speed solar wind stream to generate thrust.
Alessandro A. Quarta   +2 more
doaj   +1 more source

Internal structures and circular orbits for test particles

open access: yesPhysics Letters B, 2022
We explore how the internal structure of a test particle affects its equatorial stable circular orbits around the Kerr black hole with or without a cosmological constant.
Ming Zhang, Jie Jiang
doaj   +1 more source

Innermost stable circular orbits of charged spinning test particles

open access: yesPhysics Letters B, 2019
The effects of a paritcle's spin and electric charge on its angular momentum, energy and radius on the innermost stable circular orbit are investigated based on the particle's equations of motion in a background of the Kerr–Newmann spacetime. It is found
Ming Zhang, Wen-Biao Liu
doaj   +1 more source

Ultrafast Spin‐to‐Orbit and Orbit‐to‐Local‐Spin Conversions of Tightly Focused Hybridly Polarized Light Pulses

open access: yesAdvanced Photonics Research, 2022
Spin–orbit interaction (SOI) has provided a new viable roadmap for the development of spin‐based photonics devices. However, existing strategies to control the SOI focus commonly on tailoring the spatial dimension of light fields yet neglecting the ...
Yanxiang Zhang   +3 more
doaj   +1 more source

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