Similar to Fig. 4, but for HD 192310. The vertical dashed orange lines at ~75 days and ~526 days highlight the orbital periods of the two Neptune-mass planets found by Pepe et al. (2011). Top panel: as a result of the stellar activity correction, the bp-peak at ~75 days is above the respective cv value, revealing the planetary signal. Second panel: once the P ~ 75 days planetary signal (RV_P:75) is removed from the original time series, another peak corresponding to the P ~ 526 days planetary signal pops up (this time both the bp- and oc-peaks are above the respective cv values). Third panel: after removing also the second planetary signal (RV_P:526), the GLS periodogram does not show any other significant peak. Bottom panel: from the activity-corrected RV time series, we subtracted the Keplerian signals of the two planets (RV_P:74&P:532) inferred from the global fit of the joint A-MCMC analysis. It turned out that P_b ~ 75 days and P_c ~ 532 days. The main orbital parameters are summarized in Table 8.