Free Republic
Browse · Search
General/Chat
Topics · Post Article

Skip to comments.

Colombian boffins reconstruct flight path of Russian meteor ( Video Illustration)
The Register (UK) ^ | 27th February 2013 14:46 GMT | Brid-Aine Parnell

Posted on 02/27/2013 10:20:27 AM PST by Ernest_at_the_Beach

Trajectory apparently began in near-Earth asteroid group Apollo

Astroboffins have figured out where the Chelaybinsk meteorite came from using the power of maths and videos shot by witnesses in Russia.

Click here for Video

Jorge Zuluaga and Ignacio Ferrin of the University of Antioquia in Colombia have come up with a preliminary reconstruction of the orbit of the meteor, which smashed into the city in the Urals completely unexpectedly two weeks ago.

By combing through the witness videos and using trigonometry, the astronomers have determined that the meteorite came from the Apollo class of asteroids in our Solar System's space rock belt.

The Apollo asteroids are a bunch of near-Earth space rocks that regularly cross our world's orbit. The Apollos, named after the first of the group to be spotted - 1862 Apollo, which was first spotted in 1932 - have semi-major axes larger than the axis of Earth.

The boffinry team admits that the semimajor axis of the Chelyabinsk meteor and the inclination of its preliminary orbit are uncertain and that their calculations rested on the assumption that the reported hole in the ice sheet of Lake Cherbakul was definitely made by a fragment of the space rock, but said that "the rest of the orbital elements are well constrained in this preliminary reconstruction".

The meteorite, estimated to weigh about 10,000 tonnes, hit the Earth's atmosphere at a speed of at least 54,000kmph two weeks ago and then shattered around 30 to 50km above the ground. The shockwave of the space rock breaking into Earth's air space damaged buildings in the city of Chelyabinsk, blowing out windows and injuring hundreds.

The full sums for the reconstruction are available on arXiv.org (PDF). ®


TOPICS: Astronomy; Science
KEYWORDS: asteroid; catastrophism; chebarkul; chelyabinsk; colombia; columbia; meteor; russia; russianmeteor

1 posted on 02/27/2013 10:20:39 AM PST by Ernest_at_the_Beach
[ Post Reply | Private Reply | View Replies]

To: Ernest_at_the_Beach

I thought boffin was a verb....


2 posted on 02/27/2013 10:24:20 AM PST by paddles ("The more corrupt the state, the more it legislates." Tacitus)
[ Post Reply | Private Reply | To 1 | View Replies]

To: paddles

I think it’s the UK word for nerd.


3 posted on 02/27/2013 10:25:58 AM PST by Eric in the Ozarks (NRA Life Member)
[ Post Reply | Private Reply | To 2 | View Replies]

To: All
Nice video of the Fireball...and effects :

Click here

Meteorite Explosion - Russia Chelyabinsk 2/15/2013 - Asteroid expected to pass

4 posted on 02/27/2013 10:27:02 AM PST by Ernest_at_the_Beach ((The Global Warming Hoax was a Criminal Act....where is Al Gore?))
[ Post Reply | Private Reply | To 1 | View Replies]

To: All
And Frightened children:

Meteor Russia 2013 Impact explosion SOUND | Sonic Boom Chelyabinsk school

5 posted on 02/27/2013 10:36:01 AM PST by Ernest_at_the_Beach ((The Global Warming Hoax was a Criminal Act....where is Al Gore?))
[ Post Reply | Private Reply | To 4 | View Replies]

To: SunkenCiv

fyi


6 posted on 02/27/2013 10:37:21 AM PST by Ernest_at_the_Beach ((The Global Warming Hoax was a Criminal Act....where is Al Gore?))
[ Post Reply | Private Reply | To 1 | View Replies]

To: paddles
boffin |ˈbäfin| noun , chiefly Brit.
a person engaged in scientific or technical research.
7 posted on 02/27/2013 10:41:47 AM PST by Jane Long
[ Post Reply | Private Reply | To 2 | View Replies]

To: Jane Long

Thank you...but it was supposed to be a joke.


8 posted on 02/27/2013 11:02:35 AM PST by paddles ("The more corrupt the state, the more it legislates." Tacitus)
[ Post Reply | Private Reply | To 7 | View Replies]

To: Ernest_at_the_Beach

What pushed this thing out of the asteroid belt?


9 posted on 02/27/2013 11:35:23 AM PST by BenLurkin (This is not a statement of fact. It is either opinion or satire; or both)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Ernest_at_the_Beach; 75thOVI; agrace; aimhigh; Alice in Wonderland; AndrewC; aragorn; ...

Thanks Ernest.


10 posted on 02/27/2013 5:38:18 PM PST by SunkenCiv (Romney would have been worse, if you're a dumb ass.)
[ Post Reply | Private Reply | View Replies]

To: BenLurkin; Ernest_at_the_Beach

It could easily have been another asteroid — an impact by something of the same size, or smaller, which is following a mostly similar orbit, knocks into “our” rock, and both rocks separate like a couple of billiard balls, sending one outward, and the other one inward.


11 posted on 02/27/2013 5:41:35 PM PST by SunkenCiv (Romney would have been worse, if you're a dumb ass.)
[ Post Reply | Private Reply | To 9 | View Replies]

To: BenLurkin
It was just doing it's thing when our orbit intersected it's orbit....that is what the simulation says to me.

If we would have just moved there would have been no problem.

12 posted on 02/27/2013 6:02:40 PM PST by Ernest_at_the_Beach ((The Global Warming Hoax was a Criminal Act....where is Al Gore?))
[ Post Reply | Private Reply | To 9 | View Replies]

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
General/Chat
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson