On 2013 February 15 a small asteroid rammed against the atmosphere above the region of Chelyabinsk in Russia , producing the most powerful superbolide since the Tunguska event in 1908 . Lacking proper astrometric observations , the pre-impact orbit of this object has been determined using videos , satellite images , and pure geometry . Unfortunately , more than two years after the event , the published estimates vary so much that there is no clear orbital solution that could be used to investigate the origin of the impactor and the existence of dynamically , or perhaps even genetically , related asteroids . Here , we revisit this topic using a full N -body approach . A robust statistical test is applied to published solutions to discard those unable to produce a virtual impact at the observed time ( 03:20:20.8 \pm 0.1 s UTC ) . The same N -body methodology and the latest ephemerides are used to compute a new orbital solution : a = 1.6247 AU , e = 0.5318 , i = 3 \fdg 9750 , \Omega = 326 \fdg 4607 and \omega = 109 \fdg 7012 . This new solution —which has an impact probability > 0.99999 and uncertainties in time and space of 0.2 s and 6 km , respectively— is utilized to explore the past orbital evolution of the impactor as well as the presence of near-Earth objects moving in similar paths . A dynamical link between asteroid 2011 EO _ { 40 } and the Chelyabinsk impactor is confirmed . Alternative orbital solutions are extensively explored .