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Thread: Asteroid Impact Tonight!!!

  1. #1
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    Asteroid Impact Tonight!!!

    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.

  2. #2
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    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.

  3. #3
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    Few meters???

    I wouldn't even call that an asteroid.

    Just a good-sized meteorite....

  4. #4
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    Quote Originally Posted by JustAFriend View Post
    Just a good-sized meteorite....
    Not yet

  5. #5
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    It's a meteoroid in space, a meteor in the atmosphere, and a meteorite once (if) it hits the ground.

  6. #6
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    Quote Originally Posted by Empyre View Post
    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?

  7. #7
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    That's like asking if Pluto is a planet or not. It depends on how you define a word.

  8. #8
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    I would opine that since it is no longer burning up in the atmosphere, it has transitioned from meteor to meteorite.

  9. #9
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    And if a person of South African English descent moves to the US and becomes a citizen, are they considered an African-American?
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  10. #10
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    In case you missed it, they found chunks of 2008 TC3.
    Last edited by Gigabyte; 2009-Feb-21 at 02:28 PM. Reason: spelling

  11. #11
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    Chunks? It's only been here a few hours.. Party drugs I reckon..

  12. #12
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    Quote Originally Posted by Tarkus View Post
    Chunks? It's only been here a few hours..
    What meteor are you thinking of?

    Wikipedia 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.
    0 1 1 0 1 0 0 1 1 0 0 1 0 1 1 0 1 0 0 1 0 1 1 0 0 1 1 0 1 0 0 1 1 0 0 1 0 1 1 0 0 1 1 0 1 0 0 1 0 1 1 0 1 0 0 1 1 0 0 1 0 1 1 0 ...
    Skepticism enables us to distinguish fancy from fact, to test our speculations. --Carl Sagan

  13. #13
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    well

    burn up over Sudan.

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




    icarus5

  14. #14
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    Quote Originally Posted by icarus5 View Post
    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.
    0 1 1 0 1 0 0 1 1 0 0 1 0 1 1 0 1 0 0 1 0 1 1 0 0 1 1 0 1 0 0 1 1 0 0 1 0 1 1 0 0 1 1 0 1 0 0 1 0 1 1 0 1 0 0 1 1 0 0 1 0 1 1 0 ...
    Skepticism enables us to distinguish fancy from fact, to test our speculations. --Carl Sagan

  15. #15
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    Quote Originally Posted by icarus5 View Post
    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.
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  16. #16
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    No. Not this night.

    A bird in the hand...

    Universe Today: 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
    0 1 1 0 1 0 0 1 1 0 0 1 0 1 1 0 1 0 0 1 0 1 1 0 0 1 1 0 1 0 0 1 1 0 0 1 0 1 1 0 0 1 1 0 1 0 0 1 0 1 1 0 1 0 0 1 1 0 0 1 0 1 1 0 ...
    Skepticism enables us to distinguish fancy from fact, to test our speculations. --Carl Sagan

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