Simulation results compared with observed velocities. Case A, B, and C panels show the resulting velocities that match the BNx-ejection event in the three velocity planes for sources I, x, and BN for each respective initial combination, varying only the mass of source I. Crosses and filled circles represent the adopted eccentricity distribution with thermal and circular eccentricities, respectively. The yellow star and error bars show the observed values with their standard error. Highlighted symbols represent BNx-velocity matches. Black error bars show the range in which BNx-velocity was searched, i.e., 2σ errors.