Apparently the meteorite that downed in Russia was from a completely different object and location than the asteroid that's going to fly close tonight.
What are the chances of that? When it's usually so rare to hear anything of similar note occurring for years, individually, and then you get two large, independent, news-worthy objects from different locations and sources closely interacting with Earth on the same day, within hours of one another.
The fact that the Russian meteorite weighed approximately 10 tonnes and was travelling at 33,000mph, and nobody had any warning in advance, is, I feel, partly worrying. It was extremely lucky that it hit such a remote location (although over 1000 people are injured merely due to the shockwave hitting urban areas and blowing out windows tens of miles away). Imagine if it hit the centre of Moscow, London, New York, Tokyo, Paris, Beijing, Delhi, or similar.

Carnage on an unprecedented scale in human history, probably akin to Hiroshima or similar.