The asteroid or meteoritic rock called (2012 DA14) is expected by scientists to pass near to the earth on next February: it will pass nearer than the distance of the Moon from the earth, and will
pass with the same level as the level of many satellites


The point is that if truly this object circles around the sun then it should be nearer to the sun . than Mercury is to the sun
So I think this object may be one of the NEOs or the Near Earth Objects

http://www.quran-
ayat.com/universe/new_page_2.htm#Why_the_planet_is_near_or_far_from_ the_sun