Meteorite crash in Russia

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Demoncarnotaur said:
Damn.. I was just thinking.. I wonder if people got glass in their eyes due to looking out their windows when the sonic boom reached them.



I'd say fake. Lens flare seems too consistent, and the brightness and arc doesn't seem to match up being underneath those clouds.. But that's just my gut feeling.
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Yeah it's hard to say.
 
maharg said:
Got a source on that? Everything I've read says the airburst was at 20-30 miles up.
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From Universe today (and it is over 30k ft too), perhaps I am going off of preliminary reports... Let me find another source to edit in.
It traveled through the atmosphere for about 30 seconds before breaking apart and producing violent airburst ‘explosion’ about 20-14 km (12-15 miles) above Earth’s surface, producing an energy shockwave equivalent to a 300 kilotons explosion. That energy propagated down through the atmosphere, stuck the city below – the Chelyabinsk region has a population of about 1 million — and windows were broken, walls collapsed and there were other reports of minor damage throughout the city.

Read more: http://www.universetoday.com/100025...s-the-russian-meteor-explosion/#ixzz2L5zsPXqz
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bloomberg:
Unrelated to asteroid 2012 DA14, which flew past by Earth safely, the Chelyabinsk meteor hit the atmosphere at a speed of 18 kilometers per second (40,000 miles per hour) and broke apart 15 kilometers to 25 kilometers above the Russian city, according to NASA.
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15km ~ 50k ft. I think the 30K was early reporting.
25km ~ 15.5 mi

I was off by like half and you were about twice the value, togther our average is pretty good.
 
Hoo-doo said:
This shit is straight out of a science-fiction movie. Would be incredible to witness first-hand.

Unless you're showered with broken glass afterwards, of course.
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Having witnessed a meteor event when I was younger ... yes, it's pretty incredible.
 
Insane Metal said:
"We Are Getting Suggestions That The Meteorite Was The Beginning Nose Part Of A Bigger Chunck" (lol)

- Go to 9:20 for the most interesting bit.
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Interesting speculation at the end there.. but thankfully that timeline suggested by the reporter has long since passed. But yeah, I'm surprised no one was thinking that at the time. There easily could have been more 'chunks' or pieces coming along with the one that struck.

The threat would be greatly reduced with even a small passage of time due to simply how much distance the Earth covers orbiting the Sun taking it out of any crosshairs.
 
So it is possible that there are more meteorites? Because a day or so before this happened in I saw something very meteor like in the sky. It moved rather slow though, which is why I figured it was some airplane in combination with some weird weather phenomenon.
 
MasLegio said:
someone claiming to show proof that the meteor was shot down

I have difficulty believing this since the "missile" is catching up to the meteroid before hitting it instead of going towards it from an interception angle

anyone care to go deeper and explain why this might or might not be false.

http://www.youtube.com/watch?feature=player_embedded&v=-octPHs9gcs
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I feel like the residual heat form a meteor would detonate the missile well before it ever made real impact...besides, wouldn't the meteor completely outpace a missile?
 
CrankyJay said:
I feel like the residual heat form a meteor would detonate the missile well before it ever made real impact...besides, wouldn't the meteor completely outpace a missile?
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depends on the angle of attack but in this video it is all wrong.

It would probably be possible to use kinetic energy missiles only to shoot the meteroid. But it would require something similar to a shotgun blast of missiles to have any effect and I do not believe there is such a missile defence system ready at hand that would not require a long set up time.




also I just realized that the poster of the video is another infowars nutjob, enough reason to ignore the contents of the video
 
MasLegio said:
someone claiming to show proof that the meteor was shot down

I have difficulty believing this since the "missile" is catching up to the meteroid before hitting it instead of going towards it from an interception angle

anyone care to go deeper and explain why this might or might not be false.

http://www.youtube.com/watch?feature=player_embedded&v=-octPHs9gcs
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The meteorite was estimated to be traveling at over 66,000 miles per hour.

Based on wikipedia, the highest speed air-to-air missiles top out at Mach 4, which is about 3,000 miles per hour.

So, the meteor was flying about 20 times faster than a high-speed air-to-air missile. In comparison, a railgun shoots a projectile at hypersonic speed (about Mach 5-10) with a practical one at about 5,400 miles per hour. The meteor was 12 times faster than that.

The meteor was moving an order of magnitude faster than weapon deployed by mankind. With no warning either.
 
MasLegio said:
depends on the angle of attack but in this video it is all wrong.

It would probably be possible to use kinetic energy missiles only to shoot the meteroid. But it would require something similar to a shotgun blast of missiles to have any effect and I do not believe there is such a missile defence system ready at hand that would not require a long set up time.

also I just realized that the poster of the video is another infowars nutjob, enough reason to ignore the contents of the video
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I've worked on targeting systems for defense contractors that can pick up heat plumes or heat signatures of aircraft, so it's feasible to lock onto something like this, but the sheer speed of the meteorite outmatches any technology we have. It would take some predictive guesswork on the trajectory and path of the meteorite to even intersect it, but as was mentioned this thing is traveling so fast there's not enough time to calculate this kind of thing.
 
Here is a bit from CNET on the meteorite's conspiracies.

The Russian are calling for a defense system, and/or creating a larger monitoring network.

also:
Washington, D.C. — Science, Space, and Technology Committee Chairman Lamar Smith (R-Texas) today released the following statement after reports of an unforeseen meteor exploding in the sky above Russia early this morning, on the same day that a large asteroid is scheduled to pass relatively close to Earth.

Chairman Smith: “Today’s events are a stark reminder of the need to invest in space science. Asteroid 2012 DA14 passed just 17,000 miles from Earth, less than the distance of a round trip from New York to Sydney. And this morning, a much smaller meteorite hit near the Russian city of Chelyabinsk, damaging buildings and injuring hundreds.

“Developing technology and research that enable us to track objects like Asteroid 2012 DA14 is critical to our future. We should continue to invest in systems that identify threatening asteroids and develop contingencies, if needed, to change the course of an asteroid headed toward Earth.

“Fifty years ago, we would have had no way of seeing an asteroid like this coming. Now, thanks to the discoveries NASA has made in its short history, we have known about 2012 DA14 for about a year. As the world leader in space exploration, America has made great progress for mankind. But our work is not done. We should continue to study, research, and explore space to better understand our universe and better protect our planet.”

The Science, Space, and Technology Committee will hold a hearing in the coming weeks to examine ways to better identify and address asteroids that pose a potential threat to Earth.
Source
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The UN Office for Outer Space Affairs will today present a plan to guard against and react to threats from the cosmos, Bloomberg reports.

The plan, which has been in the works for 12 years, includes a global asteroid warning system, and a team tasked with overseeing space missions to either destroy menacing asteroids or deflect them with a "gravity tractor." NASA already tracks near-earth asteroids, but only has tabs on the 1,310 biggest—which might represent less than 10% of the threats out there. And while it could be decades before one becomes a problem, "we could find one that would give us three months," the head of the UN group says. The General Assembly will likely consider the plan during its October meeting. Source
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MasLegio said:
someone claiming to show proof that the meteor was shot down

I have difficulty believing this since the "missile" is catching up to the meteroid before hitting it instead of going towards it from an interception angle

anyone care to go deeper and explain why this might or might not be false.

http://www.youtube.com/watch?feature=player_embedded&v=-octPHs9gcs
Click to expand...

A smaller part of the broken meteorite that travels a little faster because it gets less slowed down by air friction?
That would be my first guess. But hey everything must be a stupid as fuck conspiracy nowadays.
 
kSt said:
Even the main Putin propaganda channel denied the possibility to even track objects like this, let alone shoot them down.

So the guy who made the video you posted is a russian patriot? Lol.
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rumours began in russian nationalistic media

and no, I am not surprised that an american idiot (infowarsbelieber) fell for it or used it for their own purposes (need to defend the country from the socialist devils)


Ether_Snake said:
Holy shit. It opened the door.
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a puny door that was half open
this is more impressive

http://youtu.be/1kvHl5Qcnzc?t=28s
 
Copernicus said:
railgun
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Nope. In atmosphere, railgun is practically limited to... what, 10 machs? Don't remember exactly but there is a limit, at certain point atmospheric friction will eat away the projectile.

Baseline is this: once something from space hits atmosphere, you can't stop it anymore.

EDIT and this was ignoring that only railguns we have are prototypes, and they're mean to replace/be an alternative to cruise missiles. Not that we couldn't develop anti-air railgun or something like that...
 
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