Rates for successful retrieval of injected companions in ExoGRAVITY observations with 10 s DIT and 27 min exposure time on the UT. (a) Retrieval when the star–companion couple is oriented in the direction of the longest VLTI baselines. (b) Retrieval when the star–companion couple is oriented perpendicular to the longest VLTI baselines. The red curves are the 1σ contrast limits for the best and worst UV plane orientation, shown as thick or thin lines alternatively depending on the background plot.