Time evolution of the prominence top altitude (top left panel), average latitude (top right), average longitude (bottom left) and rotation angle (bottom right) as derived from EUVI (red solid lines) and COR1 (blue solid lines) data. Dashed lines in each panel refer to second order polynomial fits to the observed curves. Dotted lines show the latitudinal and longitudinal trends expected for an eruption expanding along a linear trajectory not aligned with the radial direction.