We conduct a sensitivity analysis with 31 tests on various factors including prior emissions, model resolution, satellite constraint, and other system configurations to assess the vulnerability of emission estimates across temporal, sectoral, and regional dimensions. This reveals the robustness of emissions estimated by this air-pollution-satellite-based CO₂ emission inversion system, with relative change between tests and base inversion below 4.0 % for national annual NO_x and CO₂ emissions.