Design of Space Target Surveillance Constellation Based on Simulation Comparison Method
SensorsAiming at the requirement of space situational awareness on the full-domain and all-time coverage capability of low Earth orbit space targets and focusing on the design of a space-based space target awareness system, a space target awareness ...
Qinying Hu, Desheng Liu, Ziwei Dong
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Hybrid low-thrust transfers to eight-shaped orbits for polar observation
, 2012 In this paper, transfers from low Earth orbit (LEO) to so-called eight-shaped orbits at the collinear libration points in the circular restricted three-body problem are investigated.
Heiligers, Jeannette +2 more
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Static highly elliptical orbits using hybrid low-thrust propulsion
, 2012 The use of extended static-highly elliptical orbits, termed Taranis orbits, is considered for continuous observation of high latitude regions. Low-thrust propulsion is used to alter the critical inclination of Molniya-like orbits to any inclination ...
Macdonald, Malcolm, Anderson, Pamela
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Observation of two distinct cold, dense ion populations at geosynchronous orbit: Local time asymmetry, solar wind dependence and origin [PDF]
, 2006 International audienceWe report on the observation of two distinct cold (TiNi>2 cm?3) ion populations at geosynchronous orbit. A statistical study was performed on measurements from the geosynchronous Los Alamos plasma instruments, for the period 1990 ...
Aasnes, A. +17 more
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Natural and sail-displaced doubly-symmetric Lagrange point orbits for polar coverage [PDF]
, 2012 This paper proposes the use of doubly-symmetric, eight-shaped orbits in the circular restricted three-body problem for continuous coverage of the high-latitude regions of the Earth. These orbits, for a range of amplitudes, spend a large fraction of their
McInnes, Colin +3 more
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Aerodynamic Technologies for Earth Observation Missions in Very Low earth Orbit
, 2018 Flying at VLEO has several advantages such as the increase of the resolution of images recorded by optical instruments, the increase of geospatial position accuracy, the improvement of the signal to noise ratio and the reduction of energy consumption by ...
Rodríguez Donaire, Silvia +5 more
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Time-optimal Earth–Mars transfer using nuclear electric propulsion
Nuclear Engineering and TechnologyThis study focuses on the time-optimal end-to-end transfer trajectory between Earth and Mars using a low-thrust nuclear electric propulsion (NEP) system.
Su-Jin Choi, Morgan Choi
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Multi-objective optimisation of many-revolution, low-thrust orbit raising for Destiny mission
, 2013 This work will present a Multi-Objective approach to the design of the initial, Low-Thrust orbit raising phase for JAXA’s proposed technology demonstrator mission DESTINY.
Kawakatsu, Yasuhiro +2 more
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Semi-analytical solution for the optimal low-thrust deflection of near-Earth objects
, 2009 This paper presents a semi-analytical solution of the asteroid deviation problem when a low-thrust action, inversely proportional to the square of the distance from the sun, is applied to the asteroid.
Vasile, M. +5 more
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The detection of ultra-relativistic electrons in low Earth orbit
Journal of Space Weather and Space Climate, 2018 Aims. To better understand the radiation environment in low Earth orbit (LEO), the analysis of in-situ observations of a variety of particles, at different atmospheric heights, and in a wide range of energies, is needed. Methods.
Katsiyannis Athanassios C. +8 more
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