Author Topic: Meteor Strikes Chelyabinsk, Russia  (Read 77683 times)

Online R7

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Re: Meteor Strikes Chelyabinsk, Russia
« Reply #120 on: 02/15/2013 06:07 PM »
Re-linking this image, has a lot of details on the paths of the meteroite and DA14.

Approximate path of the russian meteor ... coming straight from the sun??
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Online ugordan

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Re: Meteor Strikes Chelyabinsk, Russia
« Reply #122 on: 02/15/2013 06:11 PM »
Let the hearings begin!

How quick and predictable. Talk about how important it all is until the noise of this event dies down.

Online Chris Bergin

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Re: Meteor Strikes Chelyabinsk, Russia
« Reply #123 on: 02/15/2013 06:14 PM »
Feb. 15, 2013

Steve Cole
Headquarters, Washington                             
202-358-0918
stephen.e.cole@nasa.gov

Janet Anderson
Marshall Space Flight Center, Huntsville, Ala.
256-544-0034
janet.l.anderson@nasa.gov

MEDIA ADVISORY: M13-033

NASA EXPERTS DISCUSS RUSSIA METEOR IN MEDIA TELECONFERENCE TODAY

WASHINGTON -- NASA experts will hold a teleconference for news media
at 4 p.m. EST today to discuss a meteor that streaked through the
skies over Russia's Urals region this morning.

Scientists have determined the Russia meteor is not related to
asteroid 2012 DA14 that will pass safely pass Earth today at a
distance of more than 17,000 miles. Early assessments of the Russia
meteor indicate it was about one-third the size of 2012 DA14 and
traveling in a different direction.

Panelists for the teleconference are:
-- Bill Cooke, lead for the Meteoroid Environments Office at NASA's
Marshall Space Flight Center in Huntsville, Ala.
-- Paul Chodas, research scientist in the Near Earth Object Program
Office at NASA's Jet Propulsion Laboratory in Pasadena, Calif.

News media interested in participating should dial 888-843-7186 and
use the passcode METEOR.

The teleconference will be carried live online at:

http://www.nasa.gov/newsaudio

Offline bubbagret

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Re: Meteor Strikes Chelyabinsk, Russia
« Reply #124 on: 02/15/2013 06:16 PM »
NASA is now suggesting possibly 15 meters...

http://www.nasa.gov/topics/solarsystem/features/russianmeteor.html
« Last Edit: 02/15/2013 06:24 PM by bubbagret »

Offline brtbrt

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Re: Meteor Strikes Chelyabinsk, Russia
« Reply #125 on: 02/15/2013 06:30 PM »
- Knock, Knock!
- Who's there?
-Chelyabinsk Meteor. Got lonely out here, so I decided to drop by and check on how your space programs are doing. When are you guys going to come and visit our neighbourhood?

Online Robotbeat

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Re: Meteor Strikes Chelyabinsk, Russia
« Reply #126 on: 02/15/2013 06:32 PM »
Let the hearings begin!

How quick and predictable. Talk about how important it all is until the noise of this event dies down.
Of course it's predictable. And yeah, advocates for space that want to get the public engaged have /got/ to learn to take advantage of situations like this because they are rare and USUALLY squandered.
Chris  Whoever loves correction loves knowledge, but he who hates reproof is stupid.

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Online R7

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Re: Meteor Strikes Chelyabinsk, Russia
« Reply #127 on: 02/15/2013 06:32 PM »
NASA is now suggesting possibly 15 meters...

http://www.nasa.gov/topics/solarsystem/features/russianmeteor.html

Quote
it is seen to pass from left to right in front of the rising sun, which means it was traveling from north to south

mlinder posted a link of weather sat image of the contrail superimposed over google maps, path is pretty much from ENE to WSW.

There's also videos where apparent movement on the sky is from right to left.

http://www.youtube.com/watch?feature=player_embedded&v=zJ-Y7vhS1JE
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Online Robotbeat

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Re: Meteor Strikes Chelyabinsk, Russia
« Reply #128 on: 02/15/2013 06:37 PM »
Let the hearings begin!

http://thehill.com/blogs/blog-briefing-room/news/283427-house-committee-to-hold-hearing-on-asteroids-that-pose-a-potential-threat-to-earth
It does make NASA less of a target for cuts (from just a social/political perspective).

This is a legitimate threat to humanity and our nation. As real as North Korea or Iran.

Sometimes I really have to wonder about space advocates who talk about how the public doesn't care and either how that's unfair/stupid or how it's inevitable. And when space DOES enter the public's eye, they brush it off, poo-poo it, and usually don't take the opportunity to educate people.
Chris  Whoever loves correction loves knowledge, but he who hates reproof is stupid.

To the maximum extent practicable, the Federal Government shall plan missions to accommodate the space transportation services capabilities of United States commercial providers. US law http://goo.gl/YZYNt0

Online mlindner

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Re: Meteor Strikes Chelyabinsk, Russia
« Reply #129 on: 02/15/2013 06:42 PM »
Found a video with a full length meteor going through atmosphere to shockwave impact.

Meteorite passes by at 4:40 in video.
Shockwave impact at 7:01 in video.
Thats a dramatic 2m21s in time delay, or 48km away assuming speed of sound at sea level.
The angle is also oblique as well, but we should be able to guesstimate the altitude from that.



Offline yg1968

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Re: Meteor Strikes Chelyabinsk, Russia
« Reply #130 on: 02/15/2013 06:44 PM »
Let the hearings begin!

How quick and predictable. Talk about how important it all is until the noise of this event dies down.

There is a couple of Republicans members on the House Space and Science committee that brings up this topic at every NASA hearing.  So I am not surprised at the fact that they are looking into it now. It's a good thing in my opinion. 
« Last Edit: 02/15/2013 06:45 PM by yg1968 »

Offline alexterrell

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Re: Meteor Strikes Chelyabinsk, Russia
« Reply #131 on: 02/15/2013 06:49 PM »
What are the policy implications?

This is the No 1 new item around the World. It makes a very strong case for building space capabilities. Some impacts:

- Improved funding for space telescopes - like this one http://www.guardian.co.uk/commentisfree/2013/feb/15/meteor-strike-asteroid-pass-sentinel-telescope?commentpage=1
- More international cooperation?
- International funding of space guard projects?
- Manned missions to NEOs?
- More public support for NASA?

Online ugordan

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Re: Meteor Strikes Chelyabinsk, Russia
« Reply #132 on: 02/15/2013 07:01 PM »
It's a good thing in my opinion. 

Oh, I agree there, but talk is cheap.

Online Robotbeat

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Re: Meteor Strikes Chelyabinsk, Russia
« Reply #133 on: 02/15/2013 07:10 PM »
It's a good thing in my opinion. 

Oh, I agree there, but talk is cheap.
What are you doing about it?
Chris  Whoever loves correction loves knowledge, but he who hates reproof is stupid.

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Online ugordan

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Re: Meteor Strikes Chelyabinsk, Russia
« Reply #134 on: 02/15/2013 07:15 PM »
Found a video with a full length meteor going through atmosphere to shockwave impact.

Meteorite passes by at 4:40 in video.
Shockwave impact at 7:01 in video.
Thats a dramatic 2m21s in time delay, or 48km away assuming speed of sound at sea level.
The angle is also oblique as well, but we should be able to guesstimate the altitude from that.




Wow, thanks for the find! Watching this, I'll have to revise my energy estimate. Producing that amount of bang and window movement at that distance, this couldn't have been produced by a low kiloton equivalent.

Dare I say around 1 megaton event?

Edit: note that this is also probably the first video that shows 2 or 3 distinct fragments after the bright breakup.
« Last Edit: 02/15/2013 07:20 PM by ugordan »

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