The Telegraph did a "science behind the strike" video
The meteor strike comes in advance of the "to close for comfort" Asteroid pass set to take place today at 2:25 pm Eastern Standard Time
Closest approach to Earth will occur at 2:25 p.m. ET
The space rock is currently zooming toward Earth at 28,100 km/h, or 7.82 kilometres per second.Humbling.
It will be just 27,000 kilometres above the Earth's surface — one-tenth of the distance between the Earth and the moon — when it makes its closest approach at 2:25 p.m. ET Friday.
At that point, it will be closer to the Earth's surface than the man-made communications and weather satellites in geosynchronous orbit, meaning the ones that complete their trip around the Earth once each day.
Meteor crash in Cuba -after the crash in Russia. Not sure about timing in relation to the asteroid passing