Results from the HUXt solar wind model compared with the sources localised by BELLA. (a) Top down ecliptic view of the multilaterated burst and HUXt results. (b) Zoom-in of the region of interest. The HUXt model shows a region of fast solar wind (v_sw > 700 km s⁻¹) on the +/+ quadrant attributed to the coronal hole CH1 (see Fig. 6a). East of this high speed region is the location of the multilaterated SRB. We found that the SRB sources follow the 480 km s⁻¹ field line with precision (< 5 R_⊙) despite the fact that the HUXt model and the BELLA multilateration are independent of each other. The location of the sources with respect to the region of high solar wind speed is consistent with the location of a cluster of active regions seen in Fig. 6b.