Electronic and physical studies for Teflon FEP as a thermal control in low earth orbit reinforced with ZnO and SiO2 nanoparticles
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Molecular Modeling"
DOI: 10.1007/s00894-021-04912-z
Abstract: Fluorinated ethylene propylene (Teflon FEP) was used as external layer thermal insulator for Hubble Space Telescope (HST) and on the outside surfaces of space crafts in the low earth orbit (LEO). Teflon FEP was eroding… read more here.
Keywords: low earth; zno sio2; teflon fep; teflon ... See more keywords
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
Mechanical and optical degradation of flexible optical solar reflectors during simulated low earth orbit thermal cycling
Sign Up to like & getrecommendations! Published in 2020 at "Acta Astronautica"
DOI: 10.1016/j.actaastro.2020.05.032
Abstract: Abstract Multilayer thin film systems on flexible polymer substrates are used as flexible optical solar reflectors or thermal insulation of satellites and spacecraft. During one year of operation, a satellite in low earth orbit typically… read more here.
Keywords: low earth; flexible optical; optical solar; thermal cycling ... 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;