J/A+A/521/A19 21 Lutetia UBVRI light curves (Lamy+, 2010)
Multi-color, rotationally resolved photometry of asteroid 21 Lutetia from
OSIRIS/Rosetta observations.
Lamy P., Faury G., Jorda L., Kaasalainen M., Hviid S.F.
<Astron. Astrophys. 521, A19 (2010)>
=2010A&A...521A..19L 2010A&A...521A..19L
ADC_Keywords: Planets ; Photometry, UBVRI
Keywords: minor planets, asteroids: general -
minor planets, asteroids: individual: 21 Lutetia -
techniques: photometric
Abstract:
Asteroid 21 Lutetia is the second target of the Rosetta space mission.
Extensive pre-encounter, space-, and ground-based observations are
being performed to prepare for the flyby in July 2010.
The aim of this article is to accurately characterize the photometric
properties of this asteroid over a broad spectral range from the
ultraviolet to the near-infrared and to search for evidence of surface
inhomogeneities.
Description:
The asteroid was imaged on 2 and 3 January 2007 with the Narrow Angle
Camera (NAC) of the Optical, Spectroscopic, and Infrared Remote
Imaging System (OSIRIS) during the cruise phase of the Rosetta
spacecraft. The geometric conditions were such that the aspect angle
was 44° (i.e., mid-northern latitudes) and the phase angle
22.4°. Lutetia was continuously monitored over 14.3h, thus
exceeding one rotational period and a half, with twelve filters whose
spectral coverage extended from 271 to 986nm. An accurate photometric
calibration was obtained from the observations of a solar analog star,
16 Cyg B.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table4.dat 30 25 Lutetia U(1,1,α) reduced magnitude
table5.dat 30 51 Lutetia B(1,1,α) reduced magnitude
table6.dat 30 52 Lutetia V(1,1,α) reduced magnitude
table7.dat 30 52 Lutetia R(1,1,α) reduced magnitude
table8.dat 30 76 Lutetia I(1,1,α) reduced magnitude
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See also:
B/astorb : Orbits of Minor Planets (Bowell+ 2010)
Table:
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Planet Name H Diam i e a
mag km deg AU
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21 Lutetia 7.35 7.35 3.063841 0.16287028 2.43565549
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Byte-by-byte Description of file: table[45678].dat
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Bytes Format Units Label Explanations
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1- 11 F11.5 d MJD Modified Julian Date (UTC)
13 A1 --- Band [UBVRI] Band for the magnitude
16- 21 F6.3 mag mag Magnitude in Band (1)
26- 30 F5.3 mag e_mag rms uncertainty on mag (1sigma)
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Note (1): reduced magnitudes m(1, 1, α=22.4°)
(α is the solar phase angle)
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Acknowledgements:
Guillaume Faury, guillaume.faury(at)oamp.fr
(End) Patricia Vannier [CDS] 08-Oct-2010