Presentation #407.03 in the session “Planetary Rings: Theory and Observations”.
We present both reflectance (lit side) and transmission (unlit side) FUV (Far Ultraviolet) phase curves of Saturn’s A, B and C rings. These data were collected by the Cassini UVIS (Ultraviolet Imaging Spectrograph) data over a wide range of viewing geometries. Understanding the phase dependance of the observed spectra is important for understanding the scattering properties of the rings. We calculate a best-fit Hapke model to the data to compute each phase curve. Hapke fit parameters are presented, as well as a discussion of the retrieved mean-slope angle parameter which describes the macroscopic roughness of the material being observed. Phase curves for each of the rings are provided for several different FUV wavelengths.