X-CIGALE fit to the quasar optical, infrared, and X-ray photometry. Photometric points from HSC, LS8, UKIDSS, VIKING, and unWISE are marked by squares. The photometry that has been ignored for the SED fit is shown as red squares. The solid black line is the best-fitting model. The dashed blue line shows the fitted disc model and the dashed brown line the unconstrained torus emission. We also show the LDSS3 spectrum presented in Appendix A. The upper panel shows corresponding photometric filters.