Residuals to the selected best-fitting, near-resonant four-planet Model 2 in Table 7 for planets HR 8799b and HR 8799c; stellar mass is m_⋆ = 1.47 M_⊙. The y-axis corresponds to the north (N), and the x-axis corresponds to the east (E) direction, respectively (we note that the numerical values of ΔRA are sign-opposite to regarding the formal left-hand direction of the RA axis). Red filled circles, and yellow and green hexagons are for the IRDIS, IFS, and LUCI measurements reported here, respectively, and dark-blue and light-blue (light-grey) filled circles are for measurements in previous papers and in Konopacky et al. (2016), respectively. Yellow diamonds are for GPI, the grey diamonds are for the early HST data.