Comparisons between rsdIcrsB and rsdIcrsA, the (O − C) residuals, respectively, before and after removing the known catalog biases (catBias). Only the observational data which are corrected by more than half of the standard deviations of residuals are shown in this figure. The ephemerides used in calculating C are DE438/NEP081xl for Triton and Nereid, and DE438/NEP086 for outer satellites (obsTrg = 809–813, i.e., Halimede, Psamathe, Sao, Laomedeia, and Neso). The three columns from left to right are the comparisons for Triton, Nereid, and outer satellites, respectively. The first and last rows are the comparisons along the directions of Right Ascension (Δα cos δ) and Declination (Δδ), respectively.