 Based on its incoming velocity of and energy, the original asteroid was likely between across, slightly smaller than the 2015 Thailand bolide, which fell about 2 years previously, several hundred miles to the south.This is the largest recorded meteor to fall over China since the 2000 bolide, which radiated about of energy compared to the 2017 event's .While it was only the 5th most energetic impact event of 2017, it was the largest one to occur over land, and a populated area no less.