Systematic positional offsets in the (RA, Dec) plane between the VLA-COSMOS 3 GHz Large Project and the COSMOS2015 (top panels), i band (middle panels), and IRAC (bottom panels) sources before (left panels) and after corrections (right panels). To obtain the corrections the 1.4° × 1.4° COSMOS field was divided into 100 bins 0.14° on the side. In each bin, a Gaussian was fitted to the separation distribution in right ascension and declination. The means of these two Gaussians are shown as the vectors shown in the plot. For visibility, the sizes of the vectors are multiplied by a factor 3600.