Last-minute prediction of the occultation using Gaia DR2 star catalog (Gaia Collaboration 2016, 2018) and relative astrometry of Huya regarding the occulted star obtained from the 1.5-m telescope in Sierra Nevada Observatory, Granada, Spain. The green line indicates the centrality of the shadow path and the blue lines the limits of the shadow assuming an area-equivalent diameter for Huya of 406 km (Fornasier et al. 2013). The 1σ precision along the path is 165 km and the 1σ precision in time is 20 s. The arrow in the right bottom shows the direction of the shadow motion³.