1D and 2D marginal distributions (corner plot) of the model parameters governing the evolution of the most recent supernova that exploded in UCL and potentially drove the formation of the CLIC. Parameters include the ambient density of the interstellar medium prior to the explosion (n₀), the time the supernova exploded in UCL (t_exp), a turbulent velocity parameter (δv_sh) that models small shifts between the shell velocity and the ensemble of cloud velocities at the time of intersection, a parameter (α) governing the deceleration of the clouds, and a parameter (﹩{\mathrm{log}}\,(f)﹩) which is the logarithm of the fractional uncertainty f that the formal measurement error on the clouds’ past velocities may be underestimated.