J/A+A/561/A45 Asteroid (341843) 2008 EV5 WISE light curves (Ali-Lagoa+, 2014)
Thermophysical properties of near-Earth asteroid (341843) 2008 EV5
from WISE data.
Ali-Lagoa V., Lionni L., Delbo M., Gundlach B., Blum J., Licandro J.
<Astron. Astrophys. 561, A45 (2014)>
=2014A&A...561A..45A 2014A&A...561A..45A
ADC_Keywords: Minor planets; Photometry, infrared
Keywords: minor planets, asteroids: individual: (341843) 2008 EV5 -
infrared: planetary systems - radiation mechanisms: thermal
Abstract:
We derive the thermal inertia of 2008 EV5, the baseline target for the
Marco Polo-R mission proposal, and infer information about the size of
the particles on its surface.
Values of thermal inertia were obtained by fitting an asteroid
thermophysical model to NASA's Wide-field Infrared Survey Explorer
(WISE) infrared data. Grain size was derived from the constrained
thermal inertia and a model of heat conductivity that accounts for
different values of the packing fraction (a measure of the degree of
compaction of the regolith particles).
Description:
The table contains the observation dates and corresponding fluxes (in
Jy) in bands W2, W3, and W4 calculated from the magnitudes obtained by
the Wide-field Infrared Survey Explorer (WISE) mission and retrieved
from the IRSA/IPAC WISE All-Sky Single Exposure (L1b) Source Table
(see Cutri et al., 2012, Cat. II/311 for more details about the data
catalogue). Column entries with zero flux and corresponding errorbar
indicate that measurements were not available in those cases. Dates
are corrected for light travel time.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tab1ev5.dat 87 193 *WISE fluxes of 2008 EV5 in 2010
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Note on tab1ev5.dat: These fluxes have been calculated from reported WISE
magnitudes following the procedure explained in detail by Ali-Lagoa et al.
(2013A&A...554A..71A 2013A&A...554A..71A) and following a combination of criteria used by Mainzer
et al. (2011ApJ...736..100M 2011ApJ...736..100M) and Masiero et al. (2011, Cat. J/ApJ/741/68)
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See also:
J/ApJ/741/68 : Main Belt asteroids with WISE/NEOWISE. I. (Masiero+, 2011)
object.dat :
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Code Name H i e a
mag deg AU
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341843 2008 EV5 20.00 7.437003 0.08360203 0.95828882
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Byte-by-byte Description of file: tab1ev5.dat
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Bytes Format Units Label Explanations
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1- 15 F15.6 d JD [2455221/2455263] Julian date
18- 27 E10.4 Jy W2 ?=0 Flux in WISE W2 band (4.6um)
30- 39 E10.4 Jy e_W2 ?=0 Flux uncertainty in band W2
42- 51 E10.4 Jy W3 ?=0 Flux in WISE W3 band (11.6um)
54- 63 E10.4 Jy e_W3 ?=0 Flux uncertainty in band W3
66- 75 E10.4 Jy W4 ?=0 Flux in WISE W4 band (22.1um)
78- 87 E10.4 Jy e_W4 ?=0 Flux uncertainty in band W4
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Acknowledgements:
Victor Ali-Lagoa, vali(at)iac.es
(End) Victor Ali-Lagoa [IAC and ULL, Spain], Patricia Vannier [CDS] 27-Nov-2013