Cerca
Ara es mostren els items 1-10 de 22
Platform and system design study of a VLEO satellite platform using the IRS RF Helicon-based Plasma Thruster
(International Astronautical Federation, 2022)
Text en actes de congrés.
Accés restringit per política de l'editorial
Text en actes de congrés.
Accés restringit per política de l'editorial
To achieve a feasible lifetime of several years, most satellites are deployed in orbits higher than 400 km. Drag of residual atmosphere causes a slow orbit decay, resulting in the deorbit of the spacecraft. However, e.g. ...
Effects of applied magnetic field on IPG6-S, test-bed for an ABEP-based inductive plasma thruster (IPT)
(Association Aéronautique et Astronautique de France, 2018)
Text en actes de congrés.
Accés obert
Text en actes de congrés.
Accés obert
An atmosphere-breathing electric propulsion system (ABEP) captures the residual atmosphere of a planet and uses it as propellant for an electric thruster to counteract the drag. The system would theoretically allow orbiting ...
Investigation of Novel Drag-Reducing and Atomic Oxygen Resistant Materials in Very Low Earth Orbit using SOAR (Satellite for Orbital Aerodynamics Research)
(International Astronautical Federation, 2020)
Text en actes de congrés.
Accés restringit per política de l'editorial
Text en actes de congrés.
Accés restringit per política de l'editorial
Interest in operating spacecraft in very low Earth orbits (VLEO), those below approximately 450 km, is growing due to the numerous benefits offered by reducing altitude. For remote sensing and Earth observation applications, ...
Advances on the Inductive Plasma Thruster Design for an Atmosphere-Breathing EP System
(International Astronautical Federation, 2018)
Text en actes de congrés.
Accés obert
Text en actes de congrés.
Accés obert
Challenging space mission scenarios include those in very low Earth orbits, where the atmosphere creates significant
drag to the S/C and forces their orbit to an early decay. For drag compensation, propulsion systems are ...
KeyNote: DISCOVERER - Making commercial satellite operations in very low earth orbit a reality
(International Astronautical Federation, 2019)
Text en actes de congrés.
Accés restringit per política de l'editorial
Text en actes de congrés.
Accés restringit per política de l'editorial
DISCOVERER is a €5.7M European Commission funded Horizon 2020 project developing technologies to enable commercially-viable sustained-operation of satellites in very low Earth orbits. Why operate closer to the Earth? For ...
Inductive Plasma Thruster (IPT) for an Atmosphere-Breathing Electric Propulsion System: design and set in operation
(2019)
Text en actes de congrés.
Accés obert
Text en actes de congrés.
Accés obert
Challenging space missions include those at very low orbits, where the atmosphere is source of significant drag on a satellite. Therefore, an efficient dragcompensation propulsion system is required to extend the mission ...
RF Helicon-based Plasma Thruster (IPT): Design, Set-up, and First Ignition
(International Astronautical Federation, 2019)
Text en actes de congrés.
Accés restringit per política de l'editorial
Text en actes de congrés.
Accés restringit per política de l'editorial
To extend missions lifetime at very low altitudes, an efficient propulsion system is requiredto compensate for aerodynamic drag. One solution is Atmosphere-Breathing Electric Propulsion (ABEP). It collects atmospheric ...
Design and development of a hyper-thermal atomic oxygen wind tunnel facility
(Centre National d'Études Spatiales (CNES), 2018)
Comunicació de congrés.
Accés restringit per política de l'editorial
Comunicació de congrés.
Accés restringit per política de l'editorial
A hyper-thermal orbital aerodynamics test facility is described. The Rarefied Orbital Aerodynamics Research facility(ROAR)is a dedicated apparatus designedto simulate the atmospheric flow in very low Earth orbits(VLEO) to ...
Aerodynamic Technologies for Earth Observation Missions in Very Low earth Orbit
(2018)
Text en actes de congrés.
Accés restringit per política de l'editorial
Text en actes de congrés.
Accés restringit per política de l'editorial
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 ...
Ground-based experimental facility for orbital aerodynamics research: design, construction and characterisation
(International Astronautical Federation, 2020)
Comunicació de congrés.
Accés restringit per política de l'editorial
Comunicació de congrés.
Accés restringit per política de l'editorial
In very low Earth orbits (VLEO), below 450 km altitude, the aerodynamic properties of satellites are primarily determined by the flow regime, free molecular flow, and the interaction of atomic oxygen with the surfacesof ...