the main goals of chandrayaan-2 are to demonstrate the ability to soft-land on the lunar surface and operate a robotic rover on the surface. studies of lunar topography,mineralogy, elemental abundance, the lunar exosphere, and signatures of hydroxyl and water ice are the scientific goals. the orbiter will survey the lunar surface and help to prepare 3d maps of it. the onboard radar will also survey the surface while studying the water ice in the lunar south pole and thickness of the lunar soil on the surface.