Results 21 to 30 of about 4,811,554 (282)

THE FORMATION OF PLUTO'S LOW-MASS SATELLITES [PDF]

open access: yesThe Astronomical Journal, 2013
35 pages, 9 figures, revised based on comments from referees and colleagues, AJ, in ...
Kenyon, Scott J., Bromley, Benjamin C.
openaire   +2 more sources

Energy cost analysis to station keeping for satellite formation type “TerraSAR-X - TanDEM-X”

open access: yesRUDN Journal of Engineering Research, 2019
The maintenance of a given configuration of the satellite formation of the “TerraSAR-X - TanDEM-X” type is considered. It is assumed that the master satellite performs only maneuvers to maintain the working orbit, and the slave satellite performs ...
Andrey A. Baranov, Nikita V. Chernov
doaj   +1 more source

Novel virtual satellite formation scheme for deterministic transmission

open access: yesTongxin xuebao, 2023
Although satellite formation flying could effectively support deterministic transmission due to its stable formation, but its formation control required significant real-time computational overhead and did not support flexible deployment for multi ...
Chuan XU   +4 more
doaj   +2 more sources

Dynamic Network Formation for FSO Satellite Communication

open access: yesApplied Sciences, 2022
Satellite network optimization is essential, particularly since the cost of manufacturing, launching and maintaining each satellite is significant. Moreover, classical communication optimization methods, such as Minimal Spanning Tree, cannot be applied ...
Revital Marbel   +3 more
doaj   +1 more source

The formation of regular satellites [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2004
Most models of planet formation envisage that early protoplanets were encompassed by a dusty gaseous disc. A simulation of planet formation by the capture-theory model has shown the formation of such a disc and suggests that its mass was close to that of the protoplanet and that it was a few au in extent.
openaire   +1 more source

Robust Satellite Formation Flying Controller Design Subject to Communication Delays

open access: yesIEEE Access, 2020
A robust control method is proposed to address the satellite formation flying problem subject to communication delays. Each satellite dynamics involves nonlinear dynamics, parametric uncertainties, and external disturbances.
Yue Gao, Hao Liu, Yu Tian
doaj   +1 more source

Tidal Truncation of Circumplanetary Disks Fails above a Critical Disk Aspect Ratio

open access: yesThe Astrophysical Journal, 2023
We use numerical simulations of circumplanetary disks to determine the boundary between disks that are radially truncated by the tidal potential and those where gas escapes the Hill sphere. We consider a model problem, in which a coplanar circumplanetary
Rebecca G. Martin   +3 more
doaj   +1 more source

Design and Analysis of the Integrated Drag-Free and Attitude Control System for TianQin Mission: A Preliminary Result

open access: yesAerospace
This article explores novel in-orbit drag-free technology that can be utilized for deep space detection scientific missions. In this study, we considered a two-test-mass drag-free method and analyzed the design of the drag-free and attitude control ...
Liwei Hao, Yingchun Zhang
doaj   +1 more source

Dynamics and control of electromagnetic satellite formations [PDF]

open access: yes2006 American Control Conference, 2006
Satellite formation flying is an enabling technology for many space missions, especially for space based telescopes. Electromagnetic formation flying (EMFF) is a novel concept that uses superconducting electromagnetic coils to provide forces and torques between different satellites in a formation.
Umair Ahsun, David W. Miller
openaire   +1 more source

Formation of Giant Planet Satellites [PDF]

open access: yesThe Astrophysical Journal, 2020
Abstract Recent analyses have shown that the concluding stages of giant planet formation are accompanied by the development of a large-scale meridional flow of gas inside the planetary Hill sphere. This circulation feeds a circumplanetary disk that viscously expels gaseous material back into the parent nebula, maintaining the system in a
Batygin, Konstantin   +1 more
openaire   +4 more sources

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