Top: total flux-density versus time at 4.8 (red triangles), 8.0 (blue circles), and 14.5 GHz (green squares). Solid curves show best-fit models for each frequency separately. Dashed curves show the individual Gaussian models that make up each best-fit model. Vertical dotted lines show the identified peaks of the light-curve based on the best-fit model. Gray bowties at the top of the plot mark the calculated ejection times of the VLBI components, based on our kinematic analysis. Bottom: residuals in fractional units (observed flux-density minus the best-fit model and normalized by the observed flux-density) as a function of time. Dashed lines denote the 5% level. Colors are as in the top panel.