Direktlänk till inlägg 22 september 2011

NASA: Broken satellite crash uncontrollably to Earth

Av Senna Stard - 22 september 2011 20:38

About 26 fragments of it are likely to hit the planet. But the experts are still divided, where the debris strike. NASA announced Wednesday evening (local time) with: "It is too early to determine the time and place of re-entry." According to estimates by the Aerospace Corporation in California is the 20-year-old satellite crash on Friday evening over the Pacific, are, however, it this estimate is a variation of 14 hours. The six-ton ​​UARS-NASA's largest missile has been for 32 years, which is an uncontrolled crash. Much of it will burn up in the atmosphere, but not completely.As a possible crash site, also called Central Europe. But North America does not lie in the calculated flight path. VIEWING latest calculations indicate that the satellite will come down somewhere back on its undulating flight path from southern South America over the Atlantic, Europe and Siberia in the north and south to Australia. Specifically the crash site could be calculated only in the short term, it said on Thursday morning (local time) from NASA. However, it is likely that the debris landed in one of the world's oceans.On arrival in the atmosphere could burning up fragments of the satellite itself look like in daylight, like shooting stars, said Nicholas Johnson, NASA's expert on space debris, the U.S daily newspaper "USA Today". If the satellite at a speed of about 27 400 kilometers per hour enters the atmosphere could be 26 fragments with a total weight of 540 kg spread over the earth, it said.The risk that are injured in the crash of NASA's UARS data to humans is "extremely low". Statistics show that there is one to have since the beginning of the 3200th Aerospace in the 1950s, there was no damage when garbage out of orbit on the earth had fallen.Russian media had initially speculated that the capital city of Moscow are in the risk zone of the satellite the size of a school bus could. But the Russian space agency Roskosmos has already given all-clear: "If we go out of its current path, he appeared on 23 September (Friday) from 22.05 clock CEST near Papua New Guinea in the Pacific," was Colonel Alexei Zolotukhin on Wednesday of the Russian news agency Interfax said.The satellite UARS (Upper Atmosphere Research Satellite / research satellite for the upper atmosphere) was sent in 1991 with the mission to study the ozone layer and the atmosphere. The measurements ended in 2005. Since the spacecraft is out of service. NASA is watching him closely in his own words and reported on their website up on the latest findings. Anyone find a part that could have come from the satellite should, do not touch it, but notify the police, warned the authorities.

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