“…However its size, rotation period, and the Sun-Earth-asteroid geometry during the mission phase, where the solar panel and antennas can face towards the Sun and Earth simultaneously, are suitable for the sample return mission in 2014-2020 (Table 1; Binzel et al, 2001;Hasegawa et al, 2008;Kawakami et al, 2010;Müller et al, 2011;Kim et al, 2013). Ground-based spectroscopic observations have confirmed that the asteroid is a C-type asteroid with a low albedo of ~0.06-0.07 (Vilas, 2008(Vilas, , 2012Abe et al, 2008;Hasegawa et al, 2008;Campins et al, 2009;Müller et al, 2011;Moskovitz et al, 2012;Sugita et al, 2012;Lazzaro et al, 2013;Pinilla-Alonso et al, 2013). A possible 0.7-µm absorption feature obtained in July 2007 by Vilas (2008) is common for CM-type chondrites and is attributed to electron transfer between ferrous and ferric iron in hydrous silicates.…”