Mathematics – Logic
Scientific paper
Oct 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011epsc.conf..547l&link_type=abstract
EPSC-DPS Joint Meeting 2011, held 2-7 October 2011 in Nantes, France. http://meetings.copernicus.org/epsc-dps2011, p.547
Mathematics
Logic
Scientific paper
The asteroid (21) Lutetia has been succesfully observed on July 10, 2010, when the ESA Rosetta spacecraft flew by the small body at high relative velocity. It was the second asteroid observed in details by Rosetta, after the Steins flyby that occured 2 years before during its long interplanetary journey toward the comet 67P/Churyumov-Gerasimenko. With a diameter of 126 × 103 × 95km3, Lutetia becomes the largest asteroid observed by a space probe. Because of the trajectory, the northern hemisphere could be observed while the southern remained hidden. The images obtained in visible wavelengths with the OSIRIS cameras (both NAC and WAC) revealed a variety of craters densities and surface properties, suggesting a different geological history of the areas and different regolith properties. Here we present a spectrophotometric analysis of the surface using the OSIRIS images and we show the method we developped to generate multi-wavelengths maps from images obtained at different geometries.
Barucci Andrea
Fornasier Sonia
Fulchignoni Marcello
Leyrat Cedric
Sierks Holger
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