Capturing small asteroids into a Sun-Earth Lagrangian point
View/Open
1-s2.0-S0094576513003998-main.pdf (492,0Kb) (Restricted access)
Request copy
Què és aquest botó?
Aquest botó permet demanar una còpia d'un document restringit a l'autor. Es mostra quan:
- Disposem del correu electrònic de l'autor
- El document té una mida inferior a 20 Mb
- Es tracta d'un document d'accés restringit per decisió de l'autor o d'un document d'accés restringit per política de l'editorial
Cita com:
hdl:2117/22768
Document typeArticle
Defense date2014-02-01
Rights accessRestricted access - publisher's policy
European Commission's projectASTRONET-II - The Astrodynamics Network (EC-FP7-289240)
Abstract
In this paper we address the feasibility of capturing small Near-Earth Asteroids (NEAs) into the vicinity of the Sun-Earth L-2 libration point using a continuous-thrust propulsion system assumed to be attached to the asteroid. The vicinity of this libration point is a gateway to the Earth-Moon neighborhood and using it for capture, or for transit, small NEAs could be interesting for mining or science purposes.; Due to limited maneuver capabilities and security concerns, only NEAs with very small mass, and not representing a potential hazard, are analyzed. First, the NEAs are pruned from JPL NEAs (Jet Propulsion Laboratory, 2012) [1] database and their diameter and mass are estimated using two different methods based on physical properties. Then, fuel-optimal continuous-thrust transfer orbits from the original positions of the NEAs to the Sun-Earth L-2 libration point are computed. For this trajectory optimization, the initial seeds are generated by means of a global optimization procedure based on a differential evolution algorithm. Next, these initial seeds are refined with a fourth order Runge-Kutta shooting method, and finally we list the candidate NEAs to be captured using a continuous-thrust propulsion system including the key parameters defining their transfer trajectory. (C) 2013 IAA. Published by Elsevier Ltd. All rights reserved.
CitationLladó, Neus [et al.]. Capturing small asteroids into a Sun-Earth Lagrangian point. "Acta astronautica", 01 Febrer 2014, vol. 95, p. 176-188.
ISSN0094-5765
Publisher versionhttp://www.sciencedirect.com/science/article/pii/S0094576513003998
Files | Description | Size | Format | View |
---|---|---|---|---|
1-s2.0-S0094576513003998-main.pdf![]() | 492,0Kb | Restricted access |
Except where otherwise noted, content on this work
is licensed under a Creative Commons license
:
Attribution-NonCommercial-NoDerivs 3.0 Spain