Gain phase solutions (from + π: blue to − π: red) for the XX polarisation referenced to station CS 002 (located in the superterp centre). Each panel is one station. White pixels represents bad data that were removed. Stations CS 013, CS 026, CS 031, CS 101, and RS 310 were fully removed due to hardware issues or strong radio frequency interference (RFI) contamination. In the bottom image we show the residuals after subtracting all the effects shown in Fig. 3.