Juventas with radar deployed

Juventas – the Roman name for the daughter of Hera – is being developed for ESA by the GomSpace company and GMV in Romania, together with consortia of additional partners developing the spacecraft instruments. This six-unit CubeSat would fly with ESA's proposed Hera mission to the Didymos binary asteroid system. Juventas will deploy a metre and a half long low-frequency radar antenna, which will unfurl like a tape measure, to probe deep beneath the asteroids' surfaces. The fine Sun sensors shown in the diagram will help keep Juventas while its inter-satellite link (ISL) radio frequency systems will link it to its Hera mothership.