We will have a close call from an asteroid tonight (Oct 11/12) that will pass well within the Moon's orbit at 26,000 miles above the Earth. It is similar in size to the Chelyabinsk asteroid that exploded over that city on 2/15/14 with over half a million tons of TNT explosive force.
|This animation depicts the flyby of small asteroid 2012 TC4 as it passes under Earth. On Oct. 12 EDT (Oct. 11 PDT), 2012 TC4 will safely pass by Earth at a distance of approximately 26,000 miles (42,000 kilometers). Image credit: NASA/JPL-Caltech|
NASA and others will be testing the international asteroid warning network to see how well observations are coordinated.
More info here.
Viewers can tune in on line at 7:59 PM EDT 10/11/17.
Sky Guy in VA