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Asteroid Deflection

On testing laser ablation processes for asteroid deflection

On testing laser ablation processes for asteroid deflection

... asteroidal deflection a series of self contained scaled experiments using a 90 W continuous-wave (CW) laser was ...possible asteroid deflection ...

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Asteroid deflection and exploitation : possible synergies

Asteroid deflection and exploitation : possible synergies

... The asteroid and cometary impact hazard has long been recognised as an important issue requiring risk assessment and contingency ...for asteroid deflection and capture (or resource transport) ...the ...

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Statistical multi-criteria evaluation of non-nuclear asteroid deflection methods

Statistical multi-criteria evaluation of non-nuclear asteroid deflection methods

... nuclear asteroid deflection methods applied to a wide range of virtual col- lision ...each deflection method was integrated within a systematic approach to size the spacecraft and predict the ...

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A smart cloud approach to asteroid deflection

A smart cloud approach to asteroid deflection

... However, in order for the smart cloud to be effective it needs to be properly deployed, and to maintain its shape until it impacts with the asteroid. It is proposed that each smart particle could be a small nano ...

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Experimental analysis of laser ablated plumes for asteroid deflection and exploitation

Experimental analysis of laser ablated plumes for asteroid deflection and exploitation

... laser asteroid deflection ...and asteroid deflection models; highlighting the conditions placed upon the assumed physical parameters and the response of the ablation ...

13

Design of a formation of solar pumped lasers for asteroid deflection

Design of a formation of solar pumped lasers for asteroid deflection

... Figures 16 and 17 show the achievable impact parameter for the case of the natural formation orbits with two alternative design solutions, a 5 m in diameter reflector and a 10m in diameter reflector both with a ...

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Autonomous GNC for asteroid deflection and attitude control via laser ablation

Autonomous GNC for asteroid deflection and attitude control via laser ablation

... the asteroid, the estimator can obtain three dimensional position information of the points on the ...the asteroid - each frequency and direction of the axes of rotation can be computed by applying a ...

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Optimal control of a space-borne laser system for a 100 m asteroid deflection under uncertainties

Optimal control of a space-borne laser system for a 100 m asteroid deflection under uncertainties

... the deflection. Previous work [4] showed that when the size of the asteroid is in the range of 100 m, the applied strategy in [5] cannot deliver the necessary torque to control the rotation in order to ...

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Optimal impact strategies for asteroid deflection

Optimal impact strategies for asteroid deflection

... In this paper a simple analytical expression based on proximal motion equations is derived for the computation of the deflection of potentially hazardous asteroids. An analysis of the accuracy of the proposed ...

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LASER BEES : A concept for asteroid deflection and hazard mitigation

LASER BEES : A concept for asteroid deflection and hazard mitigation

... the asteroid • Each equipped with a small solar concentrator [known as Mirror Bees] Each spacecraft simultaneously collects and focuses solar radiation directly onto the asteroid’s surface ...

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Statistical multicriteria evaluation of asteroid deflection methods

Statistical multicriteria evaluation of asteroid deflection methods

... of asteroid 2011AG5 which was pre- viously considered by NEOSHIELD while the second choice approaches the limit of our current detection rate, if one refers to the plot of Harris and DAbramo (2015) on ...each ...

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On the deflection of asteroids with mirrors

On the deflection of asteroids with mirrors

... an asteroid deflection method based on multiple solar ...the deflection through the sublimation of the surface material of an asteroid is presented, with simulation results showing the ...

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Gravitational capture opportunites for asteroid retrieval missions

Gravitational capture opportunites for asteroid retrieval missions

... both asteroid deflection technologies and dynamical system theory, which allow new and cheaper means of space transportation, are now enabling radically new mission concepts, such as asteroid ...

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Topological Optimization In 3D Printing Design

Topological Optimization In 3D Printing Design

... of deflection after optimization 28 ...of deflection after optimization 29 4.1.4 Deflection before optimization occurred on the Z-axis plane 29 ...4.1.5 Deflection after optimization occurred ...

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International Journal of Emerging Technology and Advanced Engineering

International Journal of Emerging Technology and Advanced Engineering

... Different artificial techniques can be used to develop the Membership functions and rule bases such as neural networks, genetic algorithms, evolutionary strategy, Kalman filters or numerical optimization. In this paper, ...

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Photothermal cantilever deflection spectroscopy

Photothermal cantilever deflection spectroscopy

... bi-material cantilever responds to heat generated by the nonradiative decay process when the adsorbed molecules are resonantly excited with infrared (IR) light. The variation in the cantilever deflection as a ...

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Mirror formation control in the vicinity of an asteroid

Mirror formation control in the vicinity of an asteroid

... the asteroid. If the light is focused directly on the surface of the asteroid, the focal point has to be moved away from the mirror and the mirror will result to be almost ...

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Alternating orbiter strategy for asteroid exploration

Alternating orbiter strategy for asteroid exploration

... an asteroid or incur in high fuel costs for orbit ...the asteroid, including passes over the sub-solar and anti-solar ...the asteroid characteristics, or the initial ...

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Asteroid Ryugu before the Hayabusa2 encounter

Asteroid Ryugu before the Hayabusa2 encounter

... Near-Earth asteroid; NIRS3: Near-infrared spectrometer; ONC: Optical navigation cameras; ONC-T: Optical navigation telescopic camera; ONC-W1 and W2: Optical navigation wide field of view cameras 1 and 2; PSL: ...

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