Time series of the activity indicators. The complete RV data set has been used. The thick red lines mark the best-fitting line fit. We note the change in the activity level between the two seasons significantly detected in the contrast (first panel), the DLW (fourth panel), and the Ha index (seventh panel). The time is given as BJD_TDB = Barycentric Julian Dates in Barycentric Dynamical Time − 2 450 000.