Why Not A Predicted Meteor Blast Russia Previously

Ria Novosti said officials at The Chelyabinks pass and exploding meteors allegedly crashed into a lake.

JAKARTA, KOMPAS.com -human space technology today, especially from developed countries such as the United States and Russia, capable of detecting objects in space that could potentially for mashing. But, on a meteor explosion in Russia Friday (15/2/2013), humans apparently "latest soccer news directly".
The question now is, why humans and technology could be latest soccer news directly?

"There's a meteor exploding in the detection of Russia may be due to the limitations of the current system in detecting celestial objects are small with long distances," said Dr. Hakim l. Malasan., astronomer, ITB, when contacted by the Kompas.com, Tuesday (17/2/2013).

The judge, expressing space objects categorized when resized smaller less than 30 meters.

The same thing also put forth a Space Agency astrophysicist and National Flight (EIGHT), Thomas Djamaluddin. "The size of the asteroid that is too small to make its existence is difficult to detect," he said.

Thomas revealed, extraterrestrial objects near the Earth currently detected using optical methods. Object detection by this method is based on the brightness of the object. These methods have limitations in detecting objects smaller space.

"Detect small asteroids is difficult because these objects are very faint especially if its distance away from Earth, so often escapes observation," said Thomas, who also contacted yesterday.

"Even if detected, it is usually the asteroids had been located at a distance which is very close to the Earth and we are difficult to do much to avoid it. In contrast to the asteroid 2012 DA14 is relatively easy to spot, "he added.

Asteroid 2012 DA14 known passing near Earth on Saturday (16/2/2013) early morning time Indonesia.

According to Thomas, the relatively small-sized asteroids that could potentially hit the Earth was ever detected. Unfortunately, this charge was accidentally. The Asteroid that hit the Earth in the year 2008, precisely in the area of Sudan, Africa.

The Asteroid that crashed in Sudan smaller, diameterya only 6 yards. Taken into account, the asteroid fell in 19 hours after detected. The location of the collision have also been determined. And, the collision does happen as predicted.

Thomas adds, in addition to its small size, the speed of the meteor when it crashed to Earth is also one of the factors is not the detection of meteor that exploded in Russia.

"The average speed when asteroids fall could reach 20 – 30 km/s or the equivalent of 70,000 km – 100,000 km/h. Therefore when unidentified asteroid at a distance of 2 million miles, it means that the asteroid had been very close to Earth, "said Thomas.

The latest information from the official NASA portal size meteorite exploded in Russia by 17 metres (previously 15 metres) and weighs 10,000 tons. Although classified meteorites are small in size, this is larger when compared with the meteor that crashed off the coast of Bone in 2008. The Flash causes 200,000 square metres of broken glass at the disaster site, and injuring about 1,200 people.

Judges and Thomas explains, the damage that occurs in a location not caused by collision or meteor fragments, however pleh shock wave that appears when the meteor burst. (Fifi Dwi Pratiwi)