High-fidelity trajectory design to flyby near-Earth asteroids using CubeSats

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dc.contributor.authorMachuca, Pablo
dc.contributor.authorSanchez, Joan-Pau
dc.contributor.authorMasdemont, Josep J.
dc.contributor.authorGomez, Gerard
dc.date.accessioned2020-01-30T18:17:23Z
dc.date.available2020-01-30T18:17:23Z
dc.date.issued2019-11-05
dc.description.abstractFast development of CubeSat technology now enables the first interplanetary missions. The potential application of CubeSats to flyby near-Earth asteroids is explored in this paper in consideration of CubeSats' limited propulsive capabilities and systems constraints. Low-energy asteroid flyby trajectories are designed assuming a CubeSat is initially parked around to the Sun-Earth Lagrange points. High-impulse and low-thrust trajectories with realistic thrusting models are computed first in the Circular Restricted Three-Body Problem (CR3BP), and then in a high-fidelity ephemeris model. Analysis in the ephemeris model is used to confirm that trajectories computed in the CR3BP model also exist in a more realistic dynamical model, and to verify the validity of the results obtained in CR3BP analysis. A catalogue of asteroid flyby opportunities between years 2019 and 2030 is provided, with 80 m/s of available ΔV and departure from halo orbits around the first and second Sun-Earth Lagrange points (of similar size to those typically used by scientific missions). Results show that the CR3BP model can serve as an effective tool to identify reachable asteroids and can provide an initial estimation of the ΔV cost in the ephemeris model (with ±15 m/s accuracy). An impulsive maneuver model can also provide an accurate estimation of the ΔV requirement for a CubeSat equipped with a high-impulse thruster (with 4 m/s accuracy), even if its thrust magnitude is small and requires duty cycling; low-thrust ΔV requirements, however, may differ significantly from the impulsive results (±15 m/s).en_UK
dc.identifier.citationMachuca P, Sanchez JP, Masdemont JJ, Gomez G. (2019) High-fidelity trajectory design to flyby near-Earth asteroids using CubeSats. Acta Astronautica, Volume 167, February 2019, pp. 146-163en_UK
dc.identifier.issn0094-5765
dc.identifier.urihttps://doi.org/10.1016/j.actaastro.2019.09.041
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/15050
dc.language.isoenen_UK
dc.publisherelsevieren_UK
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectTrajectory designen_UK
dc.subjectInterplanetary CubeSatsen_UK
dc.subjectNear-Earth asteroidsen_UK
dc.subjectLow-thrust trajectoriesen_UK
dc.subjectSun-Earth Lagrange pointsen_UK
dc.titleHigh-fidelity trajectory design to flyby near-Earth asteroids using CubeSatsen_UK
dc.typeArticleen_UK

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