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Analysis of the orbital stability close to the binary asteroid (90) Antiope

Aljbaae, Safwan and Prado, Antonio F. B. A. and Sanchez, Diogo M. and Hussmann, Hauke (2020) Analysis of the orbital stability close to the binary asteroid (90) Antiope. Monthly Notices of the Royal Astronomical Society, 496 (2), pp. 1645-1654. Oxford University Press. doi: 10.1093/mnras/staa1634. ISSN 0035-8711.

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Official URL: https://academic.oup.com/mnras/article/496/2/1645/5855498


We provide a generalized discussion on the dynamics of a spacecraft around the equal-mass binary asteroid (90) Antiope, under the influence of solar radiation pressure at the perihelion and aphelion distances of the asteroid from the Sun. The polyhedral shape of the components of this asteroid is used to accurately model the gravitational field. Five unstable equilibrium points are determined and classified into two cases that allow classifying of the motion associated with the target as always unstable. The dynamical effects of the mass ratio of our binary system are investigated. We tested massless particles initially located at the periapsis distance on the equatorial plane of the primary of our binary asteroid. Bounded orbits around our system are not found for the longitudes λ ∈ {60, 90, 120, 240, 270, 300}. We also discuss the orbital dynamics in the full potential field of (90) Antiope. The tested motions are mainly dominated by the binary’s gravitational field; no significant effects of the SRP are detected. For λ = 180°, less perturbed orbits are identified between 420 and 700 km from the centre of the system, that corresponds to orbits with Δa < 30 km and Δe < 0.15. All the orbits with initial periapsis distance smaller than 350 km either collide with components of our asteroid or escape from the system.

Item URL in elib:https://elib.dlr.de/138366/
Document Type:Article
Title:Analysis of the orbital stability close to the binary asteroid (90) Antiope
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Aljbaae, SafwanDivision of Space Mechanics and Control, INPE, BrazilUNSPECIFIED
Prado, Antonio F. B. A.Division of Space Mechanics and Control, INPE, BrazilUNSPECIFIED
Sanchez, Diogo M.Division of Space Mechanics and Control, INPE, Brazilhttps://orcid.org/0000-0002-3878-3931
Hussmann, Haukehauke.hussmann (at) dlr.deUNSPECIFIED
Journal or Publication Title:Monthly Notices of the Royal Astronomical Society
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1093/mnras/staa1634
Page Range:pp. 1645-1654
Publisher:Oxford University Press
Keywords:Solar system, Asteroids, Antiope, Orbital Stability, Solar Radiation Pressure
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Space Exploration
DLR - Research theme (Project):R - Exploration of the Solar System
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Planetary Geodesy
Deposited By: Hußmann, Dr. Hauke
Deposited On:26 Nov 2020 14:24
Last Modified:26 Nov 2020 14:24

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