Simulation of major space particles toward selected materials in a near-equatorial low earth orbit
Sign Up to like & getrecommendations! Published in 2017 at "Astrophysics and Space Science"
DOI: 10.1007/s10509-017-3082-3
Abstract: A low earth orbit near the equator (LEO-NEqO) is exposed to the highest energies from galactic cosmic rays (GCR) and from trapped protons with a wide range of energies. Moreover, GCR fluxes were seen to… read more here.
Keywords: low earth; space particles; major space; space ... See more keywords
Regional positioning using a low Earth orbit satellite constellation
Sign Up to like & getrecommendations! Published in 2018 at "Celestial Mechanics and Dynamical Astronomy"
DOI: 10.1007/s10569-017-9811-7
Abstract: Global and regional satellite navigation systems are constellations orbiting the Earth and transmitting radio signals for determining position and velocity of users around the globe. The state-of-the-art navigation satellite systems are located in medium Earth… read more here.
Keywords: low earth; earth orbit; navigation; earth ... See more keywords
Managing Satellite Debris in Low-Earth Orbit: Incentivizing Ex Ante Satellite Quality and Ex Post Take-Back Programs
Sign Up to like & getrecommendations! Published in 2019 at "Environmental and Resource Economics"
DOI: 10.1007/s10640-019-00320-3
Abstract: Increased economic activity in low-Earth orbit (LEO) in the past century created debris fields that impede current and future economic activities. We propose an economic model that combines elements of patent law with space law… read more here.
Keywords: low earth; take back; satellite quality; managing satellite ... See more keywords
YBCO-based non-volatile ReRAM tested in Low Earth Orbit
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Materials Science: Materials in Electronics"
DOI: 10.1007/s10854-020-04190-0
Abstract: An YBCO-based test structure corresponding to the family of ReRAM devices associated with the valence change mechanism is presented. We have characterized its electrical response previous to its lift-off to a Low Earth Orbit (LEO)… read more here.
Keywords: low earth; non volatile; earth orbit; reram ... See more keywords
Property changes in materials due to atomic oxygen in the low Earth orbit
Sign Up to like & getrecommendations! Published in 2021 at "CEAS Space Journal"
DOI: 10.1007/s12567-021-00376-2
Abstract: We expect satellites at altitude below 300 km, very low Earth orbit (VLEO), making observations of the Earth at optical wavelength with increasingly higher resolution. The density of atomic oxygen (AO) at VLEO is significantly higher… read more here.
Keywords: low earth; degradation; earth orbit; bsf ... See more keywords
Propulsion options for very low Earth orbit microsatellites
Sign Up to like & getrecommendations! Published in 2017 at "Acta Astronautica"
DOI: 10.1016/j.actaastro.2016.11.001
Abstract: Abstract The growing competitiveness in the commercial space market has raised the interest in operating small spacecraft at very low altitudes. To make this feasible, the space industry has started developing propulsion options tailored specifically… read more here.
Keywords: low earth; earth orbit; propulsion options; orbit microsatellites ... See more keywords
A technical comparison of three low earth orbit satellite constellation systems to provide global broadband
Sign Up to like & getrecommendations! Published in 2019 at "Acta Astronautica"
DOI: 10.1016/j.actaastro.2019.03.040
Abstract: Abstract The idea of providing Internet access from space has made a strong comeback in recent years. After a relatively quiet period following the setbacks suffered by the projects proposed in the ’90s, a new… read more here.
Keywords: low earth; system; global broadband; provide global ... See more keywords
MDM: A flight mission to observe materials degradation in-situ on satellite in super low Earth orbit
Sign Up to like & getrecommendations! Published in 2021 at "Acta Astronautica"
DOI: 10.1016/j.actaastro.2020.11.048
Abstract: Abstract Satellites in low Earth orbit (LEO) are subject to several environmental factors, atomic oxygen (AO) having the greatest effect on space materials, especially polymers. Recently, the possibility of utilizing orbits at an altitude lower… read more here.
Keywords: low earth; leo; space; earth orbit ... See more keywords
First results from the LUCID-Timepix spacecraft payload onboard the TechDemoSat-1 satellite in Low Earth Orbit
Sign Up to like & getrecommendations! Published in 2019 at "Advances in Space Research"
DOI: 10.1016/j.asr.2018.10.045
Abstract: Abstract The Langton Ultimate Cosmic ray Intensity Detector (LUCID) is a payload onboard the satellite TechDemoSat-1, used to study the radiation environment in Low Earth Orbit ( ∼ 635 km). LUCID operated from 2014 to 2017,… read more here.
Keywords: low earth; payload onboard; earth orbit;
Low Earth orbit satellite constellation for regional positioning with prolonged coverage durations
Sign Up to like & getrecommendations! Published in 2019 at "Advances in Space Research"
DOI: 10.1016/j.asr.2019.01.010
Abstract: Abstract Satellite navigation constellations orbit the Earth in medium and geosynchronous orbits. Their high altitude provides wide coverage, which may be redundant if only regional coverage is needed. In this paper, a design scheme for… read more here.
Keywords: low earth; coverage; orbit satellite; earth orbit ... See more keywords
On the practical exploitation of perturbative effects in low Earth orbit for space debris mitigation
Sign Up to like & getrecommendations! Published in 2019 at "Advances in Space Research"
DOI: 10.1016/j.asr.2019.01.020
Abstract: Abstract This paper presents the results of a numerical evaluation of the natural lifetime reduction in low Earth orbit, due to dynamical perturbations. The study considers two values for the area-to-mass ratio, a nominal ratio… read more here.
Keywords: low earth; earth orbit; orbit; debris mitigation ... See more keywords