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Fig. 1


Lightcurves of asteroid (21) Lutetia obtained at Calar Alto in March 17, using BUSCA instrument. The four Strömgren u,v,b,y and a Cousins-I filters are shown. Additionally, two lightcurves obtained at Lulin Observatory in March 19, using Cousins-R and Sloan i′ filters are also shown.

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