Well it is going to pass by Earth tomorrow, and since it will be 15 times further away than our Moon, we dont have to worry about it until 2119, when it returns.
But look out for it in the Northern skyfrom about the 2nd June it should be quite bright, since it is 1.7 miles in diameter.

Plus it has its own Moon running around it.

http://science.nasa.gov/science-news/science-at-nasa/2013/30may_asteroidflyby/

Its own Moon, here-

http://science.nasa.gov/science-news/science-at-nasa/2013/30may_asteroidmoon/

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"You will never find a real Human being - Even in a mirror." ....Mike Kremer.