[PDF] Top 20 Displaced geostationary orbits using hybrid low-thrust propulsion
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Displaced geostationary orbits using hybrid low-thrust propulsion
... spacecraft propulsion system to maintain displaced NKOs [2, 4, 7- 8, ...primary propulsion system on a reasonable sized mission is still rather ...a thrust component in the direction of the ... See full document
29
Displaced geostationary orbits using hybrid low-thrust propulsion
... paper, displaced geostationary orbits using hybrid low-thrust propulsion, a complementary combination of Solar Electric Propulsion (SEP) and solar sailing, ... See full document
18
Extension of highly elliptical Earth orbits using continuous low-thrust propulsion
... Molniya orbits is the fixed ...by geostationary platforms, an Observational Zenith Angle (OZA) of around 63deg is required to all longitudes at latitudes as far south as ... See full document
36
Survey of highly non-Keplerian orbits with low-thrust propulsion
... maximum thrust 300mN, the authors illustrated how such a relay spacecraft could be stationed up to approximately ...a thrust of about 200mN for the same relay ...as using a second spacecraft, with ... See full document
54
Non-Keplerian orbits using low thrust, high ISP propulsion systems
... of displaced non-Keplerian B orbits for celestial bodies in the Solar system has been systematically ...B orbits could have a diverse range of applications for space physics, exploration and ... See full document
15
Extension of earth orbits using low-thrust propulsion
... The low-altitude of the conventional Sun- synchronous Polar orbiting spacecraft means in order to achieve real time continuous observation of the Earth, a constellation of between thirty and one hundred spacecraft ... See full document
13
Sun-synchronous highly elliptical orbits using low-thrust propulsion
... UE to restrictions within the current architecture of the global observing system (GOS), space-based remote sensing of Earth suffers from an acute data-deficit over the critical polar-regions. Currently, observation of ... See full document
15
Hybrid low-thrust transfers to eight-shaped orbits for polar observation
... – hybrid propulsion In order to incorporate the solar sail in the optimal control problem, the following two changes have to be ...the hybrid spiral has to be removed, which means that the ... See full document
19
Displaced non-Keplerian orbits using impulsive thrust
... continuous low thrust propulsion to generate artificial equilibria was apparently first proposed by Dusek (1966) who pointed out that a spacecraft could be held at an artificial equilibrium point ... See full document
35
Artificial three-body equilibria for hybrid low-thrust propulsion
... sail in the elliptical restricted three-body problem and find equilibrium points exist only within the ecliptic plane. However, the authors find that when the eccentricity of the orbit of the primary bodies is small, out ... See full document
27
Displaced geostationary orbit design using hybrid sail propulsion
... of geostationary spacecraft and limits imposed by east-west spacing requirements, the geostationary orbit is becoming ...new geostationary slots by displacing the geostationary orbit either ... See full document
41
Extension of the Molniya orbit using low-thrust propulsion
... on a highly elliptical orbit with an inclination of 90deg are beneficial for many reasons, in particular for Earth Observation missions for example, to monitor the rapidly changing environment of the Northern Frigid ... See full document
20
Design of optimal Earth pole-sitter transfers using low-thrust propulsion
... pole-sitter orbits and their control has only recently been performed by Ceriotti et ...electric propulsion (SEP) it was shown that a five year pole-sitter mission with a 100 kg payload ...the ... See full document
27
Design of optimal Earth pole-sitter transfers using low thrust propulsion
... performed using data retrieved from satellites in highly inclined, low Earth orbits, restricting them to observe only narrow swaths of the polar regions during each ...from geostationary (GEO) ... See full document
17
Combined high and low-thrust geostationary orbit insertion with radiation constraint
... implementing hybrid propulsion systems, that is, performing an analysis based on launch vehicle technology, spacecraft power availability and efficiencies of current low thrust ...Moon ... See full document
21
Static highly elliptical orbits using hybrid low-thrust propulsion
... maximum thrust of the solar electric propulsion thruster constrains the ...electric propulsion system is ...maximum thrust, the increase in mission lifetime is greater than that achieved ... See full document
34
Static highly elliptical orbits using hybrid low-thrust propulsion
... highly-elliptical orbits enabled using hybrid solar-sail/solar-electric propulsion are ...proposed orbits, termed Taranis orbits, have free selection of Ôcritical inclinationÕ ... See full document
35
Static highly elliptical orbits using hybrid low-thrust propulsion
... Observations from GEO begin to degrade at around 55deg latitude; the previous analysis therefore details the minimum requirements to provide continuous global observation at any time. Therefore, to provide a more ... See full document
22
Displaced periodic orbits with low-thrust propulsion
... the thrust as the propellant is consumed to obtain a constant ...of propulsion is useful for some high energy missions, but unlike solar sails, they have a finite ∆V capability, which makes them unsuitable ... See full document
15
Non-Keplerian orbits using hybrid solar sail propulsion for Earth applications
... a low-thrust transfer such as the Earth to pole-sitter transfer is the fact that, to reach the pole-sitter position from LEO, the spacecraft has to increase its orbit radius by a factor ...of ... See full document
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