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Orbit Propagation and Determination of Low Earth Orbit Satellites [PDF]

open access: yesInternational Journal of Antennas and Propagation, 2014
This paper represents orbit propagation and determination of low Earth orbit (LEO) satellites. Satellite global positioning system (GPS) configured receiver provides position and velocity measures by navigating filter to get the coordinates of the orbit ...
Ho-Nien Shou
doaj   +2 more sources

Fuel Optimization for Low Earth Orbit Maintenance [PDF]

open access: goldJournal of Astronomy and Space Sciences, 2008
The resolution of Earth images taken from a satellite has close relation with satellite's altitude. If a satellite has lower altitude, it gets a picture having better resolution.
Yong Jae Park   +3 more
doaj   +3 more sources

Microbial applications for sustainable space exploration beyond low Earth orbit [PDF]

open access: yesnpj Microgravity, 2023
With the construction of the International Space Station, humans have been continuously living and working in space for 22 years. Microbial studies in space and other extreme environments on Earth have shown the ability for bacteria and fungi to adapt ...
Allison P. Koehle   +4 more
doaj   +2 more sources

Microlensing planet detection via geosynchronous and low Earth orbit satellites [PDF]

open access: yesA&A 585, A62 (2016), 2015
Planet detection through microlensing is usually limited by a well-known degeneracy in the Einstein timescale $t_E$, which prevents mass and distance of the lens to be univocally determined. It has been shown that a satellite in geosynchronous orbit could provide masses and distances for most standard planetary events ($t_E \approx 20$ days) via a ...
Beaulieu, J. P., Mogavero, F.
arxiv   +4 more sources

Biomanufacturing in low Earth orbit for regenerative medicine. [PDF]

open access: yesStem Cell Reports, 2022
Research in low Earth orbit (LEO) has become more accessible. The 2020 Biomanufacturing in Space Symposium reviewed space-based regenerative medicine research and discussed leveraging LEO to advance biomanufacturing for regenerative medicine applications. The symposium identified areas where financial investments could stimulate advancements overcoming
Sharma A   +25 more
europepmc   +4 more sources

Satellite mega-constellations create risks in Low Earth Orbit, the atmosphere and on Earth [PDF]

open access: yesScientific Reports, 2021
The rapid development of mega-constellations risks multiple tragedies of the commons, including tragedies to ground-based astronomy, Earth orbit, and Earth’s upper atmosphere.
Aaron C. Boley, Michael Byers
doaj   +2 more sources

Mapping Earth Analogs from Photometric Variability: Spin-Orbit Tomography for Planets in Inclined Orbits [PDF]

open access: yesApJ, 755, 101 (2012), 2012
Aiming at obtaining detailed information of surface environment of Earth analogs, Kawahara & Fujii (2011) proposed an inversion technique of annual scattered light curves named the spin-orbit tomography (SOT), which enables one to sketch a two-dimensional albedo map from annual variation of the disk-integrated scattered light, and demonstrated the ...
Borucki   +20 more
arxiv   +3 more sources

BeiDou Augmented Navigation from Low Earth Orbit Satellites [PDF]

open access: yesSensors, 2019
Currently, the Global Navigation Satellite System (GNSS) mainly uses the satellites in Medium Earth Orbit (MEO) to provide position, navigation, and timing (PNT) service.
Mudan Su   +3 more
doaj   +2 more sources

Perspectives on fundamental cosmology from Low Earth Orbit and the Moon [PDF]

open access: yesnpj Microgravity, 2023
The next generation of space-based experiments will go hunting for answers to cosmology’s key open questions which revolve around inflation, dark matter and dark energy.
Gianfranco Bertone   +2 more
doaj   +2 more sources

TRIFLE DIFFERENCE APPROACH TO LOW EARTH ORBITER PRECISION ORBIT DETERMINATION [PDF]

open access: goldJournal of Astronomy and Space Sciences, 2003
A precise kinematic orbit determination (P-KOD) procedure for Low Earth Orbiter(LEO) using the GPS ion-free triple differenced carrier phases is presented.
Jay Hyoun Kwon   +3 more
doaj   +3 more sources

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