I'm sorry to hear about all those people hurt in Russia. That meteor was probbaly about 10 Tonnes in weight. I don't know what it looked like, so I've decided to draw 99942 Apohis instead which weighs 27 Million Tonnes and is due for a close encounter with the planet Earth in 2036. Apophis is the object with the highest rating on the Palermo Technical Impact Hazard Scale to date , though there are a few others coming soon that might better it. Apophis is likely to be larger than the asteroid that created the Chicxulub asteroid impact crater in Yucatan. You know the one that killed all the Dinosaurs. Sleep well folks.