Time evolution of the core distance (top panels) and flux density (bottom panels) of model-fit components at 15 GHz (left panels) and at 43 and 86 GHz (right panels). In the top panels, the size of the data points is set to ∼1/2 of the Gaussian components size. Note here that the time range of 15 and 43–86 GHz data is different. The flux density of the core component showed a maximum in early 2009 at all frequencies. Based on the observational data, in this time range a new component emerges from the core. This new knot seems to “light up” component C3 on its passage, increasing the flux density of the latter.