The Hera mission will also deploy the Milan 6-unit CubeSat. Its main instrument will be the ASPECT hyperspectral imager, combining visible and near infrared wavelengths to survey the surface down to a maximum spatial resolution of 1 m. It will also carry VISTA,an Italian-built dust detector. The instrument is devoted to detect the presence of dust particles smaller than 5-10 µm, to detect volatiles and light organics charactersation and to monitor the molecular contamination in the surrounding of Mliani.