Results 91 to 100 of about 4,477,022 (227)

Tailoring Model‐Based Systems Engineering for Sub‐100 g PlanarSats: A Power‐First View Stack

Systems Engineering, Volume 29, Issue 6, Page 1152-1170, November 2026.
ABSTRACT This paper addresses how to apply model‐based systems engineering (MBSE) to ultrasmall planar satellites under severe power and resource constraints. PlanarSats are sub‐100‐gram spacecraft built as single printed‐circuit boards where the same surface must host both electronics and solar cells, so power generation, geometry, and component ...
Mehmet Şevket Uludaǧ, Alim Rüstem Aslan   +1 more
wiley   +1 more source

Dynamics Modeling of Spacecraft Formation Flying and Evaluating the Models Accuracy under the Effects of Relative Distance, Eccentricity and Earth Gravitational Perturbation [PDF]

فصلنامه علوم و فناوری فضایی, 2012
Relative motion of satellites in a formation can be studied in several forms of dynamics models. In this paper, some of the most applicable models each implying particular assumptions, constraints and specifications are described in Cartesian and orbital
M. Navabi, M. Barati
doaj  

Preferential Orientations of Subjovian Patera and Northern Hemisphere Mountain Populations on Io

Journal of Geophysical Research: Planets, Volume 131, Issue 11, November 2026.
Abstract Io's surface hosts numerous mountains and volcanic paterae generated by processes that occur at depth, including tidal heating and the resultant crustal recycling and subsidence stresses. Global trends in the shape and orientation of surface features could provide insight into these subsurface processes.
C. H. Seeger, K. de Kleer
wiley   +1 more source

SpaceMed: Immersive interdisciplinary academic training for the future of human space exploration

Experimental Physiology, EarlyView.
Damian M. Bailey, Hervé Normand, Gaëlle Quarck, Gilles Clement, Nicolas Bessot, Antoine Langeard, Olivier Etard, Thomas Freret, Urša Ciuha, Anika Friedl‐Werner, Katharina Brauns, Igor Mekjavic, Alexander C. Stahn, Pierre Denise   +13 more
wiley   +1 more source

Soft X‐Ray Telescopes of the Future: Trade Study of Micro‐Pore Optic Size for Imaging Dayside Magnetospheric Features

Journal of Geophysical Research: Space Physics, Volume 131, Issue 11, November 2026.
Abstract This study compares the capabilities of different sized micro‐pore optic (MPO) based soft X‐ray telescopes and their ability to observe features and phenomena of the magnetosheath at Earth. The basic science is the starting point and different instrument properties are applied to test which would be capable of studying features of the near ...
Emil A. Atz, Brian M. Walsh, Kip D. Kuntz, Maxime Grandin, Markus Battarbee, Yann Pfau‐Kempf, Minna Palmroth   +6 more
wiley   +1 more source

The Spatial Localization of Storm‐Time ULF Waves Due To Plasmaspheric Plumes

Journal of Geophysical Research: Space Physics, Volume 131, Issue 11, November 2026.
Abstract The generation and propagation of Ultra Low Frequency (ULF) waves are intrinsically coupled to the cold plasma population in the terrestrial magnetosphere. During geomagnetic storms, extreme reconfigurations of the cold plasma create a complex and dynamic system that drastically modifies this coupling.
J. K. Sandhu, K. R. Murphy, I. J. Rae, T. K. Yeoman, A. W. Degeling, A. Osmane, D. P. Hartley, M.‐T. Walach   +7 more
wiley   +1 more source

Optimal design for a NEO tracking spacecraft formation [PDF]

, 2007
The following paper presents the design and methodology for developing an optimal set of spacecraft orbits for a NEO tracking mission. The spacecraft is designed to fly in close formation with the asteroid, avoiding the nonlinear gravity field produced ...
Vasile, Massimiliano, Maddock, C, Vasile, M, Maddock, Christie, Christie Alisa Maddock, Massimiliano Vasile   +5 more
core   +1 more source

Van Allen Probes Observations of a Fundamental Poloidal Wave in the Plasmasphere

Journal of Geophysical Research: Space Physics, Volume 131, Issue 11, November 2026.
Abstract All past spacecraft observations of fundamental poloidal Alfvén (P1) waves attributed to ion drift resonance have been made outside the plasmasphere. In this study, we present the first spacecraft observations of a plasmaspheric P1 wave driven by that resonance.
Kazue Takahashi, Tomotsugu Yamakawa, Matina Gkioulidou, D. G. Mitchell, Jerry W. Manweiler   +4 more
wiley   +1 more source

Formation Control of Networked Spacecraft in Deep Space Without Velocity Measurement

工程科学与技术, 2012
:This paper considers the formation control and attitude control problems of networked spacecraft flying in deep space.The control objectives are to design a coupled controller under which each spacecraft can track its ...
doaj  

On the Curlometer Measurement of Field‐Aligned and Perpendicular Currents in Low Earth Orbit: Swarm Observations and Whole Geospace Simulations

Journal of Geophysical Research: Space Physics, Volume 131, Issue 11, November 2026.
Abstract Measuring field‐aligned currents (FACs) using magnetic field observations provides a powerful means to probe the multi‐scale interactions between the magnetosphere, ionosphere and thermosphere. In this study, we benchmark the curlometer technique using Swarm spacecraft observations and simulations of the coupled magnetosphere‐ionosphere system.
R. Gajewski, R. T. Desai, B. Hnat, D. Lin, M. W. Dunlop, M. Fillion, G. Hulot, P. R. Shreedevi, M.‐T. Walach, E. Panov, J.‐M. Leger, T. Jager, D. Fischer, W. Magnes, J. A. Blake, T. Etchells   +15 more
wiley   +1 more source