Space Object May Be Killer - In 2030
Somewhere in the chorus, Bandwidth_ writes: "Time to start stockpiling those beans and working on your Y2K shelter again. Astronomers have confirmed that object 2000 SG344 has a 500-to-1 chance of hitting earth in the year 2030, a much higher probability of impact than any object before it. Scientists aren't certain what it is, but it's most likely a tiny asteroid or it could be a leftover Apollo rocket booster. It is not a major threat, damage would be contained to a localized area in the 1 to 3 megaton range if a collision were to ever happen." As jamie points out, this probably ought not worry you unduly, but it is the first nonzero-rated object on the Torino scale.
N2UX points to an MSNBC article on the object which points out that the threat has now been downgraded to a more comforting level.
Taking into account new precovery data of the object taken by the Catalina Sky Survey on 17 May 1999 (see http://cfa-www.harvard.edu/mpec/ K00 /K00V15.html), the NEODys team has
calculated that the 2030 impact scenario is no longer real (see http://ne wto n.dm.unipi.it/cgi-bin/neodys/neoibo?objects:2000SG 344;main .)
As a result of the new data, there has been a dramatic improvement in the orbital uncertainty. In fact, the nominal miss distance for this object is now given as 0.0346 AU on 22 September 2000 (22.89 UT22.19). What this means is that the object will come no closer to the Earth in 2030 than 3 million miles! In other words, the claim that this object may hit the Earth in 2030 has now been completely ruled out - less than 34 hours after the IAU and NASA decided to announce a "significant impact risk" to the world.
It was unwise of the IAU and NASA to rely on the 1999 one-night stand data by the LINEAR team. The IAU/NASA impact announcement was premature and alarmist.
(Thanks to B. J. Peiser for the above.)
While the new orbital calculations have ruled out the 2030 event, they have also increased the likelihood of encounters in years after 2030....
The media attention was due to an early announcement; NASA is no longer saying that there is any chance in 2030. There is, however, a 1-in-1000 chance in 2071.
Please click links in stories before posting.
My mom is not a Karma whore!
My fellow geeks:
Now is the time to play the "Only if you were the last man on earth" card.
Go for it!
You might get lucky.
It should be noted that the Torino scale is the probability of a 1970's Ford Gran Torino
station wagon being propelled into low Earth orbit, if the impact were to occur.
--K
Hey. It had to be said.
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