Corner plot of luminosity distance, 3 GHz afterglow peak flux and time of peak of two populations of mergers: one in density of 10⁻³ cm⁻³ (yellow), and another in 1 cm⁻³ (blue). Shown here are synthetic populations for radio-GW jointly detectable events as expected from the population model of Duque et al. (2019) for the current O3 run and taking the Very Large Array (VLA) as the limiting radio instrument, with a 3 GHz sensitivity of 15 μJy.