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Asteroid 21 Lutetia : UBVRI Light Curves from OSIRIS-NAC

Faury, G. and Jorda, L. and Lamy, P. and Kaasalainen, M. and Mottola, S. (2009) Asteroid 21 Lutetia : UBVRI Light Curves from OSIRIS-NAC. In: Bulletin of the American Astronomical Society, 41, p. 559. American Astronomical Society. 41st DPS Meeting, 4-9 Oct 2009, Puerto Rico.

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Abstract

We report on new observations aimed at characterizing asteroid 21 Lutetia, one of the targets of the Rosetta space mission. The asteroid was imaged with the OSIRIS-NAC camera during the cruise phase of the Rosetta spacecraft, at a phase angle of 22.36º, and was continuously monitored over 14 hr (on 2 and 3 January 2007), thus covering one rotational period and a half. From accurate photometric calibrations with the solar analog star, 16 CygB, we have obtained high quality light curves of 21 Lutetia in the U, B, V, R and I photometric bands. We confirm a sidereal period of 8.17 hr. No spectral variations with the rotation have been found. The resulting reflectivity spectrum is in a very good agreement with that of Barucci et al. (2005). Combining with existing observations, we have obtained its phase function.

Document Type:Conference or Workshop Item (Speech)
Title:Asteroid 21 Lutetia : UBVRI Light Curves from OSIRIS-NAC
Authors:
AuthorsInstitution or Email of Authors
Faury, G.Laboratoire d'Astrophysique de Marseille, France
Jorda, L.Laboratoire d'Astrophysique de Marseille, France
Lamy, P.Laboratoire d'Astrophysique de Marseille, France
Kaasalainen, M.University of Helsinki, Finland
Mottola, S.UNSPECIFIED
Date:2009
Journal or Publication Title:Bulletin of the American Astronomical Society
Refereed publication:No
In SCOPUS:No
In ISI Web of Science:No
Volume:41
Page Range:p. 559
Publisher:American Astronomical Society
Series Name:BAAS
Status:Published
Keywords:Lutetia, Rosetta
Event Title:41st DPS Meeting
Event Location:Puerto Rico
Event Type:international Conference
Event Dates:4-9 Oct 2009
Organizer:American Astronomical Society
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EW - Erforschung des Weltraums
DLR - Research area:Space
DLR - Program:W EW - Erforschung des Weltraums
DLR - Research theme (Project):W - Projekt ROSETTA Instrumente (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Asteroids and Comets
Deposited By: Dr.phys. Stefano Mottola
Deposited On:06 Jan 2010 09:02
Last Modified:06 Jan 2010 09:02

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