Near-Earth asteroid 2012 NEA DA14 closer to the Earth during its annual convergence of February 15, 2013. This neighborhood can be detrimental to our planet in the sense that the orbit of the asteroid is too close, and in some cases coincides with the existing geosynchronous satellites.
For the Earth closer to NEA 2012 DA14 is not a direct threat. Maybe an asteroid will cause fluctuations in the magnetic field, trying to communicate with the asteroid field? That was found 23 February 2012 of the Spanish observatories.
According to NASA, the asteroid will pass by Earth at a distance of 33,600 km is just between the trajectories of our planet and moons. Geostationary satellite orbit at an altitude of about 35,577 km above the equator. But between the Earth and geostationary objects placed in high orbit, flying hundreds of running in the middle and low orbit satellites and other space objects serving. It is almost 100% guaranteed contact with an asteroid. However, with this NASA experts claim that any of the satellites will not hurt so much to fall back into the atmosphere.
Asteroid 2012 DA 14 has a diameter of about 45 meters and weighs about 130 tons. S If we are facing a clash with him, the power of the strike would have been 2.4 megatons. NASA reports that the maximum distance at which the asteroid will approach us, this 27,200 km. He is under constant surveillance, as its orbit is regulated as Earth, and the dimensions are classified as medium. To monitor Earth orbit there is a space project. A University of Pasadena in California launched a study to launch an artificial asteroid on the orbit of the moon to study these phenomena with a more comfortable distance.