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abo999
2008-Oct-06, 08:28 PM
Asteroid 2008 TC3 will cross the Earth's orbit with a minimu distance of less than one Earth radius. Fortunately it is only a few metres across and so does not pose a threat. It is expected to burn up over Sudan.

Ephemeris data is here: http://www.cfa.harvard.edu/mpec/K08/K08T50.html

Apparently this is the first time an impact has been predicted in advance.

Abbadon_2008
2008-Oct-06, 09:04 PM
Fortunately it is only a few metres across and so does not pose a threat

Well, where's the fun in that? You mean I built my Doomday Rock Survival Bunker for nothing? But now you're telling me there's no collision?

The cable guy was gonna hook up the HD tomorrow.:whistle:

JustAFriend
2008-Oct-07, 01:14 AM
Few meters???

I wouldn't even call that an asteroid.

Just a good-sized meteorite....

hhEb09'1
2008-Oct-07, 02:05 AM
Just a good-sized meteorite....Not yet :)

Empyre
2008-Oct-07, 09:02 AM
It's a meteoroid in space, a meteor in the atmosphere, and a meteorite once (if) it hits the ground.

tdvance
2008-Oct-07, 04:19 PM
It's a meteoroid in space, a meteor in the atmosphere, and a meteorite once (if) it hits the ground.

That's actually a good question hidden in this statement--if a meteor strikes an airplane (without fatally damaging it) and is now a part of the airplane, is it now a meteorite, or does it only become a meteorite upon the plane's landing, or does it become one when it is removed from the plane and dropped on the ground?

Gigabyte
2008-Oct-07, 05:18 PM
That's like asking if Pluto is a planet or not. It depends on how you define a word.

Empyre
2008-Oct-08, 12:22 AM
I would opine that since it is no longer burning up in the atmosphere, it has transitioned from meteor to meteorite.

KaiYeves
2008-Oct-08, 02:24 AM
And if a person of South African English descent moves to the US and becomes a citizen, are they considered an African-American?

Gigabyte
2009-Feb-20, 07:57 PM
In case you missed it, they found chunks of 2008 TC3.

Tarkus
2009-Feb-21, 07:33 AM
Chunks? It's only been here a few hours.. Party drugs I reckon..

01101001
2009-Feb-21, 05:18 PM
Chunks? It's only been here a few hours..

What meteor are you thinking of?

Wikipedia 2008 TC3 (http://en.wikipedia.org/wiki/2008_TC3):


2008 TC3 (Catalina Sky Survey temporary designation 8TA9D69) was a meteoroid 2 to 5 meters (7 to 16 ft) in diameter that entered Earth's atmosphere on October 7, 2008, at 02:46 UTC (5:46 a.m. local time) and burned up before it reached the ground.
[...]
Fragments of the asteroid were found in 2009.

icarus5
2009-Feb-22, 07:34 PM
burn up over Sudan.


dont worry ,we the israeli ,will make this to crash at iran....

:):):):):)


icarus5

01101001
2009-Feb-23, 12:53 AM
dont worry ,we the israeli ,will make this to crash at iran.... :):):):):)

I don't think that's funny. Why? (If it's politically inspired, don't bother explaining.)

And why future tense? The body in question arrived 2008 October. The reason the old topic was resurrected recently was that meteorites from the meteor might have been found, rounding out the story.

===

I hope we see reasons to 1) pick titles that are less likely to be temporally misinterpreted by readers -- such as specifying a date rather than a relative time like "tonight", and 2) read for content.

Swift
2009-Feb-23, 06:10 PM
dont worry ,we the israeli ,will make this to crash at iran....

:):):):):)


icarus5
Even with the smilies, such comments are not appropriate for this board, as they can be taken as political comments.

01101001
2009-Mar-25, 06:44 PM
No. Not this night.

A bird in the hand...

Universe Today: Meteorites Found in Africa From First Predicted Asteroid Hit (http://www.universetoday.com/2009/03/25/meteorites-found-in-africa-from-first-predicted-asteroid-hit/)


Remember in October 2008 when Asteroid 2008 TC3 hit the scene – literally? This was the first asteroid that was predicted –and predicted correctly — to impact the Earth. Luckily, it wasn't big enough to cause any problems, and its path was over a remote area in Africa. It streaked into the skies over northern Sudan in the early morning of October 7, 2008, and then exploded at a high 37 km above the Nubian Desert, before the atmosphere could slow it down. It was believed that the asteroid likely had completely disintegrated into dust. But meteor astronomer Peter Jenniskens thought there might be a chance to recover some of the remains of this truck-sized asteroid. And he was right.

NASA coverage and pictures (http://www.nasa.gov/topics/earth/tc3/)