Example of two asteroid shape models derived in this work. For both shape models, the reference system in which the shape is described by the inversion procedure, is also displayed. The z axis corresponds to the rotation axis. The y axis is oriented to correspond to the longest direction of the shape model on the plane perpendicular to z. Each shape is projected along three different viewing geometries to provide an overall view. The first one (left-most part of the figures) corresponds to a viewing geometry of 0° and 0° for the longitude and latitude respectively (the x axis is facing the observer). The second orientation corresponds to (120°, 30°) and the third one to (240°, −30°). The inset plot shows the result of the bootstrap method. The x axis corresponds to the number of light-curves used and the y axis is η_a.