Debiased orbit and absolute-magnitude distributions for near-Earth objects

•We provide a four-dimensional debiased orbit and absolute-magnitude distribution for near-Earth objects.•The model provides information on the relative importance of NEO escape regions in the main asteroid belt and cometary region.•The absolute-magnitude distribution is in agreement with other recent estimates.•The orbit distribution changes with the absolute magnitude.•The long-term rate of asteroid impacts on the Earth is in agreement with previous estimates. The debiased absolute-magnitude and orbit distributions as well as source regions for near-Earth objects (NEOs) provide a fundamental frame of reference for studies of individual NEOs and more complex population-level questions. We present a new four-dimensional model of the NEO population that describes debiased steady-state distributions of semimajor axis, eccentricity, inclination, and absolute magnitude H in the range 17