The triple near-Earth asteroid (153591) 2001 SN263: an ultra-blue, primitive target for the Aster space mission

Context. The Brazilian Aster project plans a space mission to rendezvous and characterize (153591) 2001 SN263, one of the only two known triple near-Earth asteroids (NEAs). Improving the knowledge of its physical properties is necessary to optimize the mission planning and science return.Aims. We st...

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Authors: Perna, D., Alvarez-Candal, A., Fornasier, S., Kanuchova, Z., Giuliatti Winter, S. M. [UNESP], Vieira Neto, E. [UNESP], Winter, O. C. [UNESP]
Format: article
Status:Published version
Publication Date:2014
Country:Brasil
Institution:Universidade Estadual Paulista (UNESP)
Repository:Repositório Institucional da UNESP
Language:English
OAI Identifier:oai:repositorio.unesp.br:11449/116872
Online Access:http://dx.doi.org/10.1051/0004-6361/201424447
http://hdl.handle.net/11449/116872
Access Level:Open access
Keyword:minor planets
asteroids: individual: (153591) 2001 SN263
techniques: spectroscopic
techniques: photometric
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spelling The triple near-Earth asteroid (153591) 2001 SN263: an ultra-blue, primitive target for the Aster space missionminor planetsasteroids: individual: (153591) 2001 SN263techniques: spectroscopictechniques: photometricContext. The Brazilian Aster project plans a space mission to rendezvous and characterize (153591) 2001 SN263, one of the only two known triple near-Earth asteroids (NEAs). Improving the knowledge of its physical properties is necessary to optimize the mission planning and science return.Aims. We study the surface composition and physical nature of 2001 SN263 by analyzing and comparing its reflectance spectra with laboratory spectra of minerals and meteorites.Methods. We performed spectroscopic observations of 2001 SN263 using the UV-to-NIR X-Shooter spectrograph at the ESO Very Large Telescope (VLT). Complementary photometric observations of the target were acquired with the FORS2 instrument.Results. We find B-type, featureless convex spectra (Themis-or Polana-like). 2001 SN263 presents the bluest visible spectrum ever observed for small bodies in the solar system, even bluer than NEAs Phaethon and Bennu. The spectra suggest that the surface composition is organic-and magnetite-rich, similar to that of heated CI carbonaceous chondrites. Phyllosilicates may be abundant as well. We find hints of a coarse-grained surface and composition variety within the triple system.Conclusions. Both the large grain size and surface variability might be connected to the formation of the triple system. The Aster mission will have the intriguing possibility of checking current models of asteroid binary formation.NEOShield project - European Commission's Seventh Framework ProgrammeVEGA - The Slovack Agency for ScienceConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)INCT Estudos do EspacoFrench INSU-PNP programUniv Paris Diderot, Univ Paris 06, CNRS, LESIA Observ Paris, F-92195 Meudon, FranceObserv Nacl, BR-20921400 Rio De Janeiro, BrazilUniv Paris 07, F-75013 Paris, FranceSlovak Acad Sci, Astron Inst, Tatranska Lomnica 05960, SlovakiaUniv Estadual Paulista, Grp Dinam Orbital & Planetol, BR-12516410 Sp Guaratingueta, BrazilUniv Estadual Paulista, Grp Dinam Orbital & Planetol, BR-12516410 Sp Guaratingueta, BrazilNEOShield project - European Commission's Seventh Framework ProgrammeFP7-SPACE-2011-282703VEGA - The Slovack Agency for Science2/0032/14FAPESP: 11/08171-3Edp Sciences S AUniv Paris DiderotObserv NaclUniv Paris 07Slovak Acad SciUniversidade Estadual Paulista (Unesp)2015-03-18T15:54:18Z2015-03-18T15:54:18Z2014-08-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article4application/pdfhttp://dx.doi.org/10.1051/0004-6361/201424447Astronomy & Astrophysics. Les Ulis Cedex A: Edp Sciences S A, v. 568, 4 p., 2014.0004-6361http://hdl.handle.net/11449/11687210.1051/0004-6361/201424447WOS:000341185900138WOS000341185900138.pdf922486153340423671619631441001820960024575647258Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengAstronomy & Astrophysics2,265info:eu-repo/semantics/openAccessPerna, D.Alvarez-Candal, A.Fornasier, S.Kanuchova, Z.Giuliatti Winter, S. M. [UNESP]Vieira Neto, E. [UNESP]Winter, O. C. [UNESP]2025-11-12T05:05:02Zoai:repositorio.unesp.br:11449/116872Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestrepositoriounesp@unesp.bropendoar:29462025-11-12T05:05:02Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv The triple near-Earth asteroid (153591) 2001 SN263: an ultra-blue, primitive target for the Aster space mission
title The triple near-Earth asteroid (153591) 2001 SN263: an ultra-blue, primitive target for the Aster space mission
spellingShingle The triple near-Earth asteroid (153591) 2001 SN263: an ultra-blue, primitive target for the Aster space mission
Perna, D.
minor planets
asteroids: individual: (153591) 2001 SN263
techniques: spectroscopic
techniques: photometric
title_short The triple near-Earth asteroid (153591) 2001 SN263: an ultra-blue, primitive target for the Aster space mission
title_full The triple near-Earth asteroid (153591) 2001 SN263: an ultra-blue, primitive target for the Aster space mission
title_fullStr The triple near-Earth asteroid (153591) 2001 SN263: an ultra-blue, primitive target for the Aster space mission
title_full_unstemmed The triple near-Earth asteroid (153591) 2001 SN263: an ultra-blue, primitive target for the Aster space mission
title_sort The triple near-Earth asteroid (153591) 2001 SN263: an ultra-blue, primitive target for the Aster space mission
dc.creator.none.fl_str_mv Perna, D.
Alvarez-Candal, A.
Fornasier, S.
Kanuchova, Z.
Giuliatti Winter, S. M. [UNESP]
Vieira Neto, E. [UNESP]
Winter, O. C. [UNESP]
author Perna, D.
author_facet Perna, D.
Alvarez-Candal, A.
Fornasier, S.
Kanuchova, Z.
Giuliatti Winter, S. M. [UNESP]
Vieira Neto, E. [UNESP]
Winter, O. C. [UNESP]
author_role author
author2 Alvarez-Candal, A.
Fornasier, S.
Kanuchova, Z.
Giuliatti Winter, S. M. [UNESP]
Vieira Neto, E. [UNESP]
Winter, O. C. [UNESP]
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Univ Paris Diderot
Observ Nacl
Univ Paris 07
Slovak Acad Sci
Universidade Estadual Paulista (Unesp)
dc.subject.por.fl_str_mv minor planets
asteroids: individual: (153591) 2001 SN263
techniques: spectroscopic
techniques: photometric
topic minor planets
asteroids: individual: (153591) 2001 SN263
techniques: spectroscopic
techniques: photometric
description Context. The Brazilian Aster project plans a space mission to rendezvous and characterize (153591) 2001 SN263, one of the only two known triple near-Earth asteroids (NEAs). Improving the knowledge of its physical properties is necessary to optimize the mission planning and science return.Aims. We study the surface composition and physical nature of 2001 SN263 by analyzing and comparing its reflectance spectra with laboratory spectra of minerals and meteorites.Methods. We performed spectroscopic observations of 2001 SN263 using the UV-to-NIR X-Shooter spectrograph at the ESO Very Large Telescope (VLT). Complementary photometric observations of the target were acquired with the FORS2 instrument.Results. We find B-type, featureless convex spectra (Themis-or Polana-like). 2001 SN263 presents the bluest visible spectrum ever observed for small bodies in the solar system, even bluer than NEAs Phaethon and Bennu. The spectra suggest that the surface composition is organic-and magnetite-rich, similar to that of heated CI carbonaceous chondrites. Phyllosilicates may be abundant as well. We find hints of a coarse-grained surface and composition variety within the triple system.Conclusions. Both the large grain size and surface variability might be connected to the formation of the triple system. The Aster mission will have the intriguing possibility of checking current models of asteroid binary formation.
publishDate 2014
dc.date.none.fl_str_mv 2014-08-01
2015-03-18T15:54:18Z
2015-03-18T15:54:18Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1051/0004-6361/201424447
Astronomy & Astrophysics. Les Ulis Cedex A: Edp Sciences S A, v. 568, 4 p., 2014.
0004-6361
http://hdl.handle.net/11449/116872
10.1051/0004-6361/201424447
WOS:000341185900138
WOS000341185900138.pdf
9224861533404236
7161963144100182
0960024575647258
url http://dx.doi.org/10.1051/0004-6361/201424447
http://hdl.handle.net/11449/116872
identifier_str_mv Astronomy & Astrophysics. Les Ulis Cedex A: Edp Sciences S A, v. 568, 4 p., 2014.
0004-6361
10.1051/0004-6361/201424447
WOS:000341185900138
WOS000341185900138.pdf
9224861533404236
7161963144100182
0960024575647258
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Astronomy & Astrophysics
2,265
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 4
application/pdf
dc.publisher.none.fl_str_mv Edp Sciences S A
publisher.none.fl_str_mv Edp Sciences S A
dc.source.none.fl_str_mv Web of Science
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv repositoriounesp@unesp.br
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score 15,198674

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