Relative velocity of model components. Velocity of each Gaussian model component is plotted (﹩1\ \mathrm{mas}\,=0.2c﹩) with the tail of each vector originating at the model component's position at its earliest observation (1995 for 15 GHz and 2000 for 8 GHz). The model fits are in agreement with the contour overlay plots in showing this source to be shrinking.