Phobos-Grunt experiments to measure Phobos' librations
Résumé
In the frame of the Russian Phobos-Grunt mission, Phobos librations will be measured with enough precision such that crucial constraints will be obtained on the geophysical properties of its interior, offering key information on its origin [1]. This study assess the precision that can be obtained on Phobos physical librations and discuss the knowledge on physical parameters that can be inferred.