Naturally weighted images of the phase-reference calibrator J2314−3138 after self-calibration. In each image the lowest contours represent ±5 times the root mean square (rms) noise and the positive contours increment by a factor of 2. Left: 4.7-GHz VLBA image of J2314−3138 from session BZ083A observed on 2021 August 2. The peak intensity is 282 mJy beam⁻¹, the rms noise is σ = 0.14 mJy beam⁻¹. The half-power width of the elliptical Gaussian restoring beam is 4.8 mas × 1.6 mas with a major axis position angle PA = 0.2°, as presented in the bottom left corner. Right: 1.6-GHz VLBA image of J2314−3138 from session BZ083B observed on 2021 August 16. The peak intensity is 533 mJy beam⁻¹, σ = 0.16 mJy beam⁻¹. The restoring beam is 13.4 mas × 4.3 mas with PA = 1.9°.