The MPAc system designed by INFN Frascati for the alignment of a retroreflector in azimuth and elevation. Deployment of modern retroreflectors at the lunar surface is a specific target of the Strategy for Science at the Moon. The instrument would address science of both the interior structure and state of the Moon and of relativistic physics.
The retroreflector which will be used is MoonLIGHT 100 (ML 100), a large retroreflector whose structure and dimensions must guarantee an adequate light return from the Moon also avoiding any Lunar Libration issue that dominates the error budget limiting the precision of the experimental tests of gravitational theories.
Elital Space and Defence cooperate with INFN engaged for the Digital controlling board will operate on the Moon.