MCMC distribution of orbital parameters consistent with the HIRES and CARMENES RV data of GJ 1148 assuming a coplanar, edge-on, and prograde two-planet system fitted with a self-consistent dynamical model. The position of the best dynamical fit is marked with red grid lines. The black contours on the 2D panels represent the 1, 2, and 3σ confidence level of the overall MCMC samples. The top panels of every column represent the 1D histogram distribution of each parameter. All samples are stable for 10 Myr.