Top: high-resolution images of the target at each epoch. In the center and right panels, the blue cross indicates the position of the target on UT 2018 March 31, when the first Gemini/DSSI data set was collected, and we show only the I-band images here. No companions are detected here or anywhere in the field of view in any of the images. Only the central portion of the NaCo image is shown. Bottom: 5σ sensitivity to companions as a function of separation from the host star, for each data epoch. Red and blue lines indicate the Gemini/DSSI R- and I-band observations, respectively, which have central wavelengths of 692 and 880 nm.