An animation depicting the trajectory of asteroid 2012 DA14 as it travels within the Earth-moon system on February 15, 2013.

 

 

*2012 DA14 is a near-Earth asteroid with an estimated diameter of about 45 meters (148 ft) and an estimated mass of about 130,000 metric tons. It was discovered on February 23, 2012, by the OAM Observatory, La Sagra in Spain  seven days after passing 0.0174 AU (2,600,000 km; 1,620,000 mi) from Earth on February 16. Calculations show that on February 15, 2013, the distance between the asteroid and Earth will be 0.000228 AU (34,100 km; 21,200 mi). The 2013 passage of 2012 DA14 by Earth is a record close approach for a known object of this size.

(*Source Wikipedia)