Green: absolute value of the reconstructed time-dependent, but direction-independent, calibration for one baseline. The blue and orange dots are the absolute values of the visibilities of the flux calibrator and target observations, projected to the calibration space by dividing out their respective sky models. More specifically, blue dots: flux calibrator visibilities divided by the model visibilities computed from the flux calibrator sky model without time-dependent calibration factors. Orange dots: Cygnus A visibilities divided by the model visibilities computed from the Cygnus A sky model, including the direction-dependent calibration but excluding the purely time-dependent calibration. The offset between the calibration data points and the target data points makes it necessary to allow for possible discontinuities in the antenna gain reconstructions when switching the observation target. Partly this offset might also be due to a oversimplified flux calibrator model.