Residuals of two-way Doppler data at 60 s count-time (top) and range data at 300 s (bottom) for a typical arc. The different colours and markers specify the complex and specific Deep Space Station (DSS) used for each tracking pass. The red vertical lines indicate the two flybys of Titan performed within the analysed period. In the bottom left boxes, the amount, mean, and standard deviation of residuals are reported.