Time sequence of VLBA images at 43 GHz of 3C120 at nine epochs. Contours correspond to 0.5, 1, 2,..., 64, and 90% of the maximum intensity of 1.8 Jy beam ⁻¹ (reached on 2013 January 15). The easternmost feature, the "core," is presumed to be stationary. Knot K12 is marked, with a mean trajectory (shown by line) corresponding to an apparent speed of and an "ejection" date (when the brightness centroid of K12 coincided with that of the core) of 2012 March 15 ± 10. The elliptical Gaussian restoring beam of FWHM dimensions 0.34 × 0.14 milliarcsec along position angle −10° is displayed in the bottom left corner.