3 - Dimensional Reconstruction of Asteroid

Introduction: The OSIRIS [1] imaging experiment of the Rosetta spacecraft will image comet 67P/Churyumov-Gerasimenko in 2014-2015. During its journey, OSIRIS has imaged asteroid 2867 Steins on 5 September 2008. The fly-by was successful and returned more than 100 resolved images of the body as shown on Figure 1 [2]. The diamond’s shape of the body is remarkable. The surface presents several small craters and two very large ones, one having a diameter of approximately 2 km. We can also distinguish a chain of impact crater on the right of Figure 1 which is very rare feature on such a small body.