VLBA images of IRAS 17020+4544 on 2014 February 12 at 5 GHz (left panel) and 8.4 GHz (right panel), with contours traced at (− 1,1,2,4,...,32) × the ~ 3σ noise level, which is 0.2 and 0.6 mJy beam^-1 at 5 and 8 GHz, respectively. The half peak beam width is shown in the upper left corner of each panel, and is 4.6 mas × 1.4 mas in position angle (PA) − 19° and 8.0 mas × 3.4 mas in PA 19° at 5 and 8 GHz, respectively. Note the unusually larger beam at 8 GHz, due to the lack of fringe detections on the longest baselines at this frequency. In the 5 GHz image, model-fit elliptical Gaussian components are shown as crosses and labelled E, B, W, from east to west.