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Dealing with uncertainties in asteroid deflection demonstration missions: NEOTωIST

Eggl, S. and Hestroffer, D. and Cano, J. L. and Ávila, Javier Martín and Drube, Line and Harris, A.W. and Falke, A. and Johann, Ulrich and Schwartz, S. and Michel, Patrick (2016) Dealing with uncertainties in asteroid deflection demonstration missions: NEOTωIST. Proceedings of the International Astronomical Union, 10, pp. 231-238. Cambridge University Press. doi: 10.1017/S1743921315008698. ISSN 1743-9213.

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Official URL: http://arxiv.org/pdf/1601.02103v2.pdf


Deflection missions to near-Earth asteroids will encounter non-negligible uncertain- ties in the physical and orbital parameters of the target object. In order to reliably assess future impact threat mitigation operations such uncertainties have to be quantified and incorporated into the mission design. The implementation of deflection demonstration missions offers the great opportunity to test our current understanding of deflection relevant uncertainties and their consequences, e.g., regarding kinetic impacts on asteroid surfaces. In this contribution, we discuss the role of uncertainties in the NEOTωIST asteroid deflection demonstration concept, a low-cost kinetic impactor design elaborated in the framework of the NEOShield project. The aim of NEOTωIST is to change the spin state of a known and well characterized near-Earth ob- ject, in this case the asteroid (25143) Itokawa. Fast events such as the production of the impact crater and ejecta are studied via cube-sat chasers and a flyby vehicle. Long term changes, for instance, in the asteroid’s spin and orbit, can be assessed using ground based observations. We find that such a mission can indeed provide valuable constraints on mitigation relevant param- eters. Furthermore, the here proposed kinetic impact scenarios can be implemented within the next two decades without threatening Earth’s safety.

Item URL in elib:https://elib.dlr.de/100427/
Document Type:Article
Additional Information:The research leading to these results has received funding from the European Union's Seventh Framework Programme (FP7/2007-­‐2013) under grant agreement n° 282703 (NEOShield).
Title:Dealing with uncertainties in asteroid deflection demonstration missions: NEOTωIST
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Eggl, S.IMCCE-Observatoire de Paris, 75014 Paris, FranceUNSPECIFIED
Hestroffer, D.hestro (at) imcce.frUNSPECIFIED
Cano, J. L.juan-luis.cano (at) deimos-space.comUNSPECIFIED
Ávila, Javier Martínjavier.martin (at) deimos-space.comUNSPECIFIED
Drube, LineLine.Drube (at) dlr.dehttps://orcid.org/0000-0003-2486-8894
Harris, A.W.alan.harris (at) dlr.deUNSPECIFIED
Falke, A.Airbus D&S, Friedrichshafen, GermanyUNSPECIFIED
Johann, UlrichAstrium FriedrichshafenUNSPECIFIED
Michel, PatrickObservatoire de la Côte d’Azur, FranceUNSPECIFIED
Date:4 February 2016
Journal or Publication Title:Proceedings of the International Astronomical Union
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
DOI :10.1017/S1743921315008698
Page Range:pp. 231-238
EditorsEmailEditor's ORCID iD
Chesley, S.Steve.Chesley@jpl.nasa.govUNSPECIFIED
Jedicke, R.jedicke@ifa.hawaii.eduUNSPECIFIED
Farnocchia, D.Davide.Farnocchia@jpl.nasa.govUNSPECIFIED
Publisher:Cambridge University Press
Keywords:Near-­Earth objects, Asteroids, Impact hazard, Asteroid deflection, Planetary defense, Kinetic impactor
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
Deposited By: Drube, Line
Deposited On:28 Jun 2016 11:08
Last Modified:20 Jun 2021 15:47

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