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The house-sized asteroid was discovered on Oct. 4, 2012 by the Pan-STARRS observatory in Hawaii. Week later, it gave Earth a close shave when it passed the planet at the distance of 0.247 LD (lunar distance), or 94,800 km. 2012 TC4 is an elongated and rapidly rotating object and has been known to make many close approaches to Earth in the past. Now, the scientists try to determine the exact path of 2017 fly-by and the probability of a possible impact. "It has a 0.00055% cumulative chance that it will hit," Gyorgyey-Ries said. "The fact that the MOID [minimum orbit intersection distance] is only 0.079 LD flags it as a possible impactor. However it is just the smallest possible distance between the orbits."
"It has a 0.00055% cumulative chance that it will hit,"
originally posted by: Dinnedwiththedevil
But you are giving food for the hungry readers so desperate to see the end times. Its funny that so many people want the End of the World scenario. apparently these types are so unhappy in their real lives that the thought of the end of the world is refreshing as it brings end to the Rent Paying, Robot working, Cogs in the machine grinding us down way of Life.
Instead of wishing nuclear war or a giant asteroid killing us all go to your GP and ask for some Prozac! as trust me life is way better than death. Try and enjoy it while we still can as there are millions of souls that wished they had made better use of their time here.
originally posted by: ketsuko
At house sized, it's going to have to be made of something very special to do more than create a big bang in the sky somewhere assuming it does overcome those astronomically bad odds and try to hit us.
The projectile begins to breakup at an altitude of 14000 meters = 46000 ft
The projectile bursts into a cloud of fragments at an altitude of 5550 meters = 18200 ft
The residual velocity of the projectile fragments after the burst is 6.88 km/s = 4.27 miles/s
The energy of the airburst is 1.71 x 1015 Joules = 0.41 x 100 MegaTons.
Large fragments strike the surface and may create a crater strewn field.