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Michael Zaberchik, Dan R. Lev, Eviatar Edlerman and Avner Kaidar
Adelis-SAMSON is a nano-satellite mission aimed at performing geo-location of target signals on Earth using a tight three-satellite formation in space. To maintain formation, each nano-satellite is equipped with a cold gas propulsion system. The design, ...
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Anildo Monteiro Caldas, Teresa Cristina Tarlé Pissarra, Renata Cristina Araújo Costa, Fernando Cartaxo Rolim Neto, Marcelo Zanata, Roberto Da Boa Viagem Parahyba, Luis Filipe Sanches Fernandes and Fernando António Leal Pacheco
In many regions across the planet, flood events are now more frequent and intense because of climate change and improper land use, resulting in risks to the population. However, the procedures to accurately determine the areas at risk in regions influenc...
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Daniela Pedrini, Tommaso Misuri, Fabrizio Paganucci and Mariano Andrenucci
Hollow cathodes are electron sources used for the gas ionization and the beam neutralization in both ion and Hall effect thrusters (HETs). A reduction of power and propellant consumption from the cathode is particularly needed in small satellite applicat...
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Stoian Borissov, Yunhe Wu and Daniele Mortari
The higher harmonic terms of Earth?s gravitational potential slowly modify the nominal longitude of geostationary Earth orbit (GEO) satellites, while the third-body presence (Moon and Sun) mainly affects their latitude. For this reason, GEO satellites pe...
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ERNESTO C. KUNG,JONQ-GONG CHERN,JOEL SUSSKIND
Large-scale modes of variations in sea surface temperatures (SSTs) and the tropospheric circulation are examined with major principal components utilizing-monthly mean fields of the global SSTs and Northern Hemisphere geo-potential height (Z) at 700,...
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