ISO 27875-2019/Amd 1-2020
通过撞击特定纬度带的概率与该纬度带内的人口(在轨道倾角覆盖的纬度范围内进行积分)的乘积获得Ec的公式
Space systems — Re-entry risk management for unmanned spacecraft and launch vehicle orbital stages — Amendment 1: Formula to obtain Ec by the product of the probability of impact on a specific latitud