Results 21 to 30 of about 93,612 (311)

Planetesimals and Satellitesimals: Formation of the Satellite Systems [PDF]

open access: yesSpace Science Reviews, 2010
19 pages, 1 figure. The chapter is to be in the Space Science Reviews, Europlanet vol.
Mosqueira, Ignacio   +2 more
openaire   +2 more sources

Stable configurations for bounded satellite formation flying in the presence of gravitational perturbations [PDF]

open access: yes, 2022
A formation of satellites operating in low Earth orbits is subject to erturbations associated to the nonuniform gravitational field of the Earth, whose entities depend on the position, resulting in a different effect on each satellite of the formation.
Mauro Pontani   +2 more
core  

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

FORMATION AND EVOLUTION OF PLUTO’S SMALL SATELLITES [PDF]

open access: yesThe Astronomical Journal, 2015
18 pages, 8 figures.
Kevin J. Walsh, Harold F. Levison
openaire   +2 more sources

Formation Flight in Low-Earth-Orbit at 150m Distance; AOCS In-Orbit Experience [PDF]

open access: yes, 2012
AOCS operations for two satellites flying at ~514 km altitude with unprecedented small separation of 150 m upwards pose various new challenges and require creative solutions.
Schulze, Daniel   +2 more
core   +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

Dual Satellite Operations in Close Formation Flight [PDF]

open access: yes, 2012
TerraSAR-X (TSX) and TanDEM-X (TDX) are two satellites flying in low-earth orbit. Both satellites are equipped with a synthetic aperture radar (SAR) payload for Earth observation. TSX has been launched in 2007 and TDX in 2010.
Mrowka, Falk   +3 more
core   +1 more source

Fuel Consumption and Collision Avoidance Strategy in Multi-static Orbit Formations [PDF]

open access: yes, 2011
This paper analysesthe fuel consumption of interferometric rader missions employing small satellite formations like, e.g., Cross-track pendulum, Cartwheel, CarPe, or Trinodal Pendulum.
H. Fiedler   +5 more
core   +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

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