Satellite debris swirling collision

2009 年 2 13, according to British media reports, NASA announced it to the U.S. and Russian satellite debris tracking diagram. NASA said it will take several weeks to determine the United States and Russia satellite severity of the collision.

NASA Johnson Space Center's Mark - Matney said: "We know that this kind of thing will eventually happen." U.S. military's Joint Space Operations Center is tracking 500 to 600 a metal and plastic debris, some debris is only 10.16 cm in diameter, orbits are 18,000 other man-made objects. NASA's priorities is to ensure the security of the international space station, International Space Station in the collision of a high degree of the following 345 km. Ground control personnel can change the orbit of the ISS to avoid the debris, but even small fragments are highly destructive because of its speed is 8 kilometers per second. NASA said it had happened the previous four accidents since the collision of space objects, but those are minor collision.

NASA said the United States and Russia, two communication satellites in the U.S. Eastern Time at 11:55 on the 10th (Beijing time at 0:55 on the 11th) collided, located 490 miles above Siberia (about 805 km). United States, a communications satellite to at least 24,140 km per hour speed hit a defunct Russian military satellites. The two satellites are often used in spacecraft orbit two satellites into fragments after the collision, including the International Space Station debris threat to other spacecraft, including security.

evening of 12 officials of those small metal and plastic debris tracking. Experts warned that space has become too crowded. NASA said the debris on the international space station's three astronauts on the risk of "very low\But officials acknowledged that debris could endanger the Hubble telescope and the view to satellite security. United States Strategic Command Air Force Colonel Rice - Kedilike said: "We believe that this is the first time two satellites in orbit collision." Russians also played down the threat of debris. Alexander Russian Space Forces - Major General Shen Ya Library, said: "Two space spacecraft collision was an accident, the two spacecraft has been destroyed. The Russian space debris does not pose a threat to spacecraft."

2 satellites in polar orbit at the time of collision, a circle around the earth every two hours, which was then close to the North Pole. The destroyed Iridium launched in 1997, it was around the low Earth orbit 66 satellites in one. Iridium system of 25 million users worldwide voice and data communication services. Iridium Satellite, the company said its loss of a satellite caused a brief interruption of satellite phone services, the company is expected to solve the related problems today, and in 30 days will be an in-orbit spare satellite constellation network moved to a permanent replacement Fengyun the destroyed satellite. In the collision incident, the EU called for the rules of space activities. After the first satellite launch 50 years, the international community has been unable to track the satellite or satellite does not occur to ensure that collided to make arrangements.