Redshift distribution of the joint GW+X-ray detections. Panel a: shows the distribution of the viewing angle as a function of redshift for a sample of 1000 joint GW+X-ray detections, considering ET+2CE and SXI and under the assumption Stru1. Only BNS detections with GW sky localization ΔΩ < 100 deg² are selected. The assumed jet core angle is θ_c = 3.4 deg. The color bar indicates the GW sky localization uncertainty of each detection. Panel b: the distribution in redshift of the same sample, where we distinguish between detections with θ_v < 5° and θ_v > 5°. The histogram is normalized to the number of total joint detections with ΔΩ < 100 deg².