Positional offsets in R.A. and decl. between matched sources in our VLA catalog and a reference catalog. Each point represents the angular offset (ΔR.A., Δdecl.) for a matched source. The distribution is tightly clustered around the origin, indicating overall good astrometric agreement, with most offsets well within one synthesized beam. The mean offsets are 〈ΔR.A.〉 = −1﹩\mathop{.}\limits^{^{\prime\prime} }﹩160 ± 0﹩\mathop{.}\limits^{^{\prime\prime} }﹩305 and 〈Δdecl.〉 = 0﹩\mathop{.}\limits^{^{\prime\prime} }﹩512 ± 0﹩\mathop{.}\limits^{^{\prime\prime} }﹩273. A few sources show larger deviations (up to ∼30″).