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>According to unconfirmed reports, the meteorite was intercepted by an air defense unit Anyone else catch this? Is this just a bad translation and they mean to say that an air defense unit tracked the meteorite on radar? I wouldn't think any air defense system would be capable of actually intercepting a meteorite, but perhaps I'm wrong. Still doesn't seem like anything intercepted it from the videos.
Here's a collection of insane videos of the event, some with the enormous sonic boom: http://www.youtube.com/watch?v=XIAm5hq8WWc http://www.youtube.com/watch?v=b0cRHsApzt8 http://www.youtube.com/watch?v=Np_mpGYSBSA Can anyone translate what they are saying in the first one? You can get a good idea of the new videos being posted using YouTube's "last hour" filter: http://www.youtube.com/results?search_query=%D0%BC%D0%…
Two more good videos (high quality, trail/train detail, booms, etc): http://www.youtube.com/watch?v=XDqYclzto7k http://www.youtube.com/watch?v=0ozSq3yEm3g
Here's a collection of insane videos of the event, some with the enormous sonic boom: http://www.youtube.com/watch?v=XIAm5hq8WWc http://www.youtube.com/watch?v=b0cRHsApzt8 http://www.youtube.com/watch?v=Np_mpGYSBSA Can anyone translate what they are saying in the first one? You can get a good idea of the new videos being posted using YouTube's "last hour" filter: http://www.youtube.com/results?search_query=%D0%BC%D0%…
Earlier quoted context omitted.
Two more good videos (high quality, trail/train detail, booms, etc): http://www.youtube.com/watch?v=XDqYclzto7k http://www.youtube.com/watch?v=0ozSq3yEm3g
Why do you suppose there would be two contrails?
"It appears to split, so I’m guessing the main mass split there. That’s not surprising; it’s happened with previous falls (like Sikhote-Alin). That means they could have disintegrated at different times, so there may be multiple places where pieces could fall."
I happen to live 300km from the epicenter. The meteorite was seen in home town as well. I made a list of all the videos I could find: http://say26.com/meteorite-in-russia-all-videos-in-one-place
That is an amazing event. I am not sure I buy the meteorite story. Has anyone checked on 2012-DA14 [1] the asteroid that was supposed to cross between the earth and geosync orbit this evening? One conjecture would be it knocked something out of orbit. The air defense stuff is somewhat hard to believe, we don't intercept de-orbiting space junk, much less less hypersonic meteors. Further every missile interceptor that…
An asteroid the size of 2012-DA14 would hit with a force of nearly 3 megatons. This meteor, and it is enormously consistent with a meteor and nothing else, would likely only be around the size of a car or so, over a hundred times smaller in each dimension (and over 10,000x dimmer and harder to detect via telescope) than 2012-DA14.
Here's a collection of insane videos of the event, some with the enormous sonic boom: http://www.youtube.com/watch?v=XIAm5hq8WWc http://www.youtube.com/watch?v=b0cRHsApzt8 http://www.youtube.com/watch?v=Np_mpGYSBSA Can anyone translate what they are saying in the first one? You can get a good idea of the new videos being posted using YouTube's "last hour" filter: http://www.youtube.com/results?search_query=%D0%BC%D0%…
Earlier quoted context omitted.
Looking at these videos it doesn't look like there has been a defense missile: http://www.youtube.com/watch?v=1wUqmS35REY . Such missiles would leave a visible trail in the atmosphere, wouldn't they?
If you're referring to the beginning, that actually looks like it was the trail left behind by an aircraft much earlier. I live near an airport, so I see these quite often after jets go by. Usually that type of contrail appears after 2-5 minutes after a jet flies by. Far too late to intercept a meteorite which can reach the surface in minutes-seconds. If you mean the middle, that's most definitely the aftermath of th…
That is an amazing event. I am not sure I buy the meteorite story. Has anyone checked on 2012-DA14 [1] the asteroid that was supposed to cross between the earth and geosync orbit this evening? One conjecture would be it knocked something out of orbit. The air defense stuff is somewhat hard to believe, we don't intercept de-orbiting space junk, much less less hypersonic meteors. Further every missile interceptor that…
In orbit satellites are relatively slow (10 km/s-ish) and light (10 tons is a lot. The ISS is way heavier, but too flimsy to make it down in one piece)
Speed, in particular, counts, as kinetic energy goes with the square of speed. At 70km/s (IIRC, the top speed a meteorite is expected to have relative to earth), a kg of meteorite has as much kinetic energy as 50-ish kg of in orbit mass.