Cassini Langmuir probe was designed to measure the cold plasma properties. Analyzing its sweep current curve makes possible to estimate the densities of ions and electrons, ion speed, as well as the electron thermal energies independently. In addition, LP can estimate the electron densities of very thin plasma. As a result, LP can provide the plasma informations from various region of Saturn’s magnetosphere.
I will show: the dynamics of Saturn’s plasma sheet, Plasma characteristics of Saturn’s inner magnetosphere, Dusty plasma at the moon Enceladus, (#Plasma in Titan if there is time) in term of the LP observations, including how we interpret the LP.