RFIClean’s suitability in timing studies: the upper panel shows the fractional increase in S/N after excision using RFIClean, as a function of the S/N obtained from the original data. The middle panel shows the difference in times-of-arrival (ToA) measured from the original and the RFI-excised data, as a function of the associated uncertainties in the original ToAs. The difference is much smaller than the associated uncertainties. The bottom panel shows a comparison between the ToA uncertainties measured before and after the RFI excision. The uncertainties in measurements obtained from the RFI-excised data are consistently smaller than their counterparts from the original data for most of the observations.