An accuracy analysis for determining the orbits of hazardous asteroids by modeling the “Nebosvod” space system optical measurements

The paper is devoted to the study of navigation characteristics, in particular, the navigation accuracy for the “Nebosvod” space system, which is being aimed to detect hazardous celestial bodies. The methods and algorithms have been developed for determining the parameters of the orbital motion of hazardous asteroids using the optical space measurements by the “Nebosvod” system and for estimating the navigation accuracies based on these measurements, taking into account nuisance parameters corrections and practical limitations on the observations. The estimates of navigation accuracies have been obtained for observing asteroid Apophis, asteroid 2008 TC3 and Chelyabinsk meteorite based on modeling measurements by the “Nebosvod” space system.