Meteorite crash in Russia


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Message 1338356 - Posted: 15 Feb 2013, 6:34:30 UTC

Strange!


Meteorite crash in Russia: UFO fears spark panic in the Urals (VIDEO, PHOTOS)


A series of explosions in the skies of Russia’s Urals region, reportedly caused by a meteorite shower, has sparked panic in three major cities. Witnesses said that houses shuddered, windows were blown out and cellphones have stopped working.

According to unconfirmed reports, the meteorite was intercepted by an air defense unit at the Urzhumka settlement near Chelyabinsk. A missile salvo reportedly blew the meteorite to pieces at an altitude of 20 kilometers.

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Message 1338358 - Posted: 15 Feb 2013, 6:48:21 UTC - in response to Message 1338356.

Could the fly by of asteroid DA14, cause the meteorite crash in, Russia??

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Message 1338368 - Posted: 15 Feb 2013, 6:59:18 UTC - in response to Message 1338358.



Meteorite Crash In Russia's Ural Mountains Sparks UFO Fears (Video)


Explosions and bright flashes in the sky over several locations in Russia's Urals region has sparked fears of a UFO crash, according to RT news.

The crash -- felt in Chelyabinsk, Tyumen and Sverdlovsk and elsewhere -- resembled an earthquake, witnesses report.

The Associated Press confirmed that at least one meteorite has fallen in Chelyabinsk.

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Message 1338467 - Posted: 15 Feb 2013, 14:53:09 UTC - in response to Message 1338358.

Could the fly by of asteroid DA14, cause the meteorite crash in, Russia??
It's been discussed recently that the asteroid 2012 DA14 is passing so close that it may be broken up into pieces by Earth's gravity. It was claimed that the pieces would continue on the same Earth-avoiding trajectory as before, but now I wonder...

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Message 1338475 - Posted: 15 Feb 2013, 15:15:21 UTC

Too early in the day, DA14 isn't due until about 17:00UTC. These reports are at about 03:20UTC, so its "one we missed".
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Message 1338517 - Posted: 15 Feb 2013, 16:47:03 UTC - in response to Message 1338475.

Too early in the day, DA14 isn't due until about 17:00UTC. These reports are at about 03:20UTC, so its "one we missed".

I'm sure one of millions we missed. If they are perhaps related their orbits will be nearly identical. With all the video of it, I'm sure a preliminary orbit will be calculated and then we will know for sure.

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Message 1338577 - Posted: 15 Feb 2013, 19:06:23 UTC - in response to Message 1338517.

The meteor has no connection to asteroid DA14, which is expected to pass within 17,200 miles of Earth on Friday, according to NASA scientist Don Yeomans.

Biggest Rock To Hit Earth Since 1908!

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Message 1338584 - Posted: 15 Feb 2013, 19:32:18 UTC - in response to Message 1338577.

DA14 has just passed. I saw it on NASA TV.
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Message 1338690 - Posted: 16 Feb 2013, 0:56:15 UTC - in response to Message 1338584.


Wikipedia:2013 Russian meteor event



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Message 1338722 - Posted: 16 Feb 2013, 2:54:49 UTC
Last modified: 16 Feb 2013, 3:05:03 UTC

A second large meteorite has been reported, this one fell in Cuba, on Wednesday. It apparently shook buildings with a sonic boom, but damage seems not to have occurred, at least not on the scale that it did at Chelyabinsk. Mineral debris is reported to have fallen from the sky. http://investmentwatchblog.com/breaking-meteor-crash-this-time-in-cuba

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Message 1338752 - Posted: 16 Feb 2013, 4:43:34 UTC

Best sad laugh of the day was a CNN anchor asking their "science" expert if the meteor was the result of global warming.

And the expert did not point out the error in her question / logic.
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Message 1338926 - Posted: 16 Feb 2013, 18:46:34 UTC

Seem like an Asteroids@Home moment. :P
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Message 1338939 - Posted: 16 Feb 2013, 19:35:00 UTC - in response to Message 1338926.


Russian meteor hit with force of 30 Hiroshima bombs


'Blue Flash' Of Another Meteor Lights Up CA Skies...??

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Message 1339064 - Posted: 17 Feb 2013, 3:32:38 UTC - in response to Message 1338752.

Best sad laugh of the day was a CNN anchor asking their "science" expert if the meteor was the result of global warming.

And the expert did not point out the error in her question / logic.

There is enough wrong with the world that is our fault without people trying to make mankind to blame for every little thing that goes wrong. That's what we have God and the Devil for.
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Message 1339478 - Posted: 19 Feb 2013, 23:01:20 UTC - in response to Message 1339064.

METEORITE WAS LARGEST IN CENTURY

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Message 1339495 - Posted: 20 Feb 2013, 0:53:35 UTC - in response to Message 1339478.
Last modified: 20 Feb 2013, 1:00:48 UTC

I doubt it was 500 kilotons of TNT. There would have been much more dire consequences. Figure it out : one gram of TNT equals one Calorie or about 4.185 joules. figure 1/2 mv^2 for the meteor at 30,000 miles per hour and a specific gravity of say, 3.5 --or use their estimate of 10,000 tons if it makes sense. Sounds too heavy to me.

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Message 1339513 - Posted: 20 Feb 2013, 3:09:10 UTC

Bear in mind, though, that most of that energy is believed to have been released at an altitude of about 15 miles. The shock waves were apparently attenuated as they spread out in all directions, over that distance. The Earth's atmosphere seems to have absorbed much of the energy.

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Message 1339573 - Posted: 20 Feb 2013, 5:46:38 UTC

I wonder what the damage would have been had it been on a perpendicular trajectory and plunged straight down through the atmosphere. I also wonder if it was a companion to the larger asteroid that missed all together.

I also wonder if Apophis might have some sizable travelling companions that could do damage in 2029?
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Message 1339693 - Posted: 20 Feb 2013, 15:37:53 UTC

The trajectories of the Russian meteorite and the asteroid 2012 DA14 appear to have been very different. The lack of common motion seems to rule out any connection between them. There does not seem to be any evidence of of the asteroid Apophis having a moon, though, of course some asteroids do. At only ~325 meters diameter it probably couldn't capture or hold a very sizable one with its gravity.

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Message 1339738 - Posted: 20 Feb 2013, 17:56:39 UTC

It is nearly impossible to get a vertical trajectory impacting impactor from space. However, years ago there was a model that allowed you to simulate the impact of various sized objects at various angles onto the surface. From memory for a given object a very high angle impact (closer to 90deg) gave a smaller, but more intense damage field than a lower angle impact, I also recall that the maximum nett damage was at something in the region of 45deg impact as there was maximum forward splatter of material, and its was the splattered material that caused the damage.
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