On 15 February 2013, the asteroid 2012 DA14-sized 50 meters will approach Earth at a distance of about 27.680 kilometers in Geosynchronous orbit GPS navigation and communications satellites that fly around about 36,000 miles of Earth’s surface. However Asteroid 2012 DA14 will not pose a threat to the impact of the Earth when it flew through it. Based on the model issued by NASA orbit the asteroid will enter lunar orbit and the satellite orbit once.
According to astronomer Phil Plait he says;
Most of the asteroid spends its time well away from our planet. However, the path of the rock does bring it somewhat close to the Earth twice per orbit, or about every six months. The last time it passed earth on February 16 , When it was about 2.5 million km (1.5 million miles) away, equal to about six times the distance to the moon. That’s Usually about the scale of These Encounters – it misses us by quite a margin.
Scientists emphasize that there is no danger of the impact of the asteroid 2012-DA14, but it is another reminder that in the region of our solar system, we are not alone.
“2012-DA14 would not hit the Earth,” says Near Earth Object Enabler Jet Laboratory, Don Yeomans. “The orbit of the asteroid known to set aside a pretty good lacing effects.”
But in the presence of 2012-DA14 asteroids that reach Earth on February 15, it will record “a record of the closest approach.”
Rocky asteroid that will come within about 4 times the radius of the Earth, in orbit Geosynchronous satellite. While you’re at the closest distance at 19:26 UTC (3:26 am Malaysian time), it should be seen in the sky by an amateur telescope, but not with the naked eye, and will be bright as the stars of magnitude 7 or 8.
Balaicerap radar will observe the 2012-DA14 when the days it is heading to Earth and beyond when it approached Earth in an effort to determine its size, shape and trajektorinya. NASA-owned facilities will be used to observe the 2012-DA14.
Asteroid 2012 DA14 will then fly over the Earth in the year 2020 and, according to NASA, there is no chance for it to hit Earth when it flew past them. Earth Sky report in March last year that NASA astronomer Donald Yeomans said, there is a chance the impact of the “1 in 83.000 chance”.
Although we survived the asteroid impact threat for at least the next decade, our future is so uncertain. Famous asteroid 99942 Apophis which is expected to accelerate, leading to the Earth in the year 2029 and, unlike the 2012 DA14, there is an opportunity to impact even though chances are small.
Preliminary estimates suggest that the probability of impact is in the range of 2.7%, making it the highest probability ever recorded. Risk is then lowered after astronomers have more time to study the asteroid, but the chance still exists that one blows in 250,000 chance.