Results of our MCMC simultaneous fits to YSC8. The upper panel shows the data points, and the astrometric orbit, together with the line of nodes and the direction to the periastron. The lower panel shows the radial-velocity curve for both components. In the astrometric orbit, the two most-deviant points, which have been given a lower weight in the solution, are from CCD Speckle observations at WIYN by Horch and collaborators; specifically their first epoch on 2004.10 Horch & van Altena (2008), and their third epoch on 2007.33 Horch & van Altena (2008). We further note that all our SOAR/HRCam points exhibit very small residuals. Our last HRCam epoch at 2019.14 is indicated. The radial-velocity amplitudes clearly point to an almost equal-mass system.