Satellite belonging to the huge NASA fall to the ground on Friday

Expected to fall to the ground Friday evening, the satellite "Ioars" of the U.S. space agency NASA has launched a satellite on September 12 / September 1991, was the work of important scientific for 14 years until 2005, during which measurements accurate to cover the upper atmosphere and solar radiation, such as study the chemical composition of the atmosphere at that height, and helped to answer some questions about the ozone hole, was made in 1980 and cost 750 million Dollarroicol experts said the satellite, which weighs 5.7 tons and a length of about 3 meters walking speed 27,252 km The time is expected to fall to the ground on Friday evening, but that the determination of the place and time accurate to the place of his fall are still not known accurately, and experts note that such information will not be available strictly only two hours before entering the satellite of the atmosphere. According to the latest calculations conducted for the moon's orbit Industrial on Wednesday at one o'clock at noon GMT, the moon will fall on the ground on Friday at eight pm GMT (plus or minus 14 hours) and the current location of his fall is in the sea north of the continent of Australia, and this information is subject to change. But one thing is certain that the place of the fall will be in the area between latitudes 57 degrees south and 57 degrees north, and this large area, including large parts of the earth. And likely to split the satellite as a result of inadvertent contact with the atmosphere to 26 ppm before it reaches the Earth, ranging speed of between tens of kilometers per hour to hundreds of kilometers per hour, is expected to be the largest part of the mass of debris that reaches the Earth's surface about 150 kilograms. It is the candidate that the field is the region affected by the debris about 350 km. Which makes the subject to predict the place and time hard to identified needs to know the precise density upper atmosphere, which Christtk with the satellite, and this in turn depends on the temperature and pressure, which are influenced by solar wind, and this can not be predicted in advance with precision. And nomads to NASA scientists is worried about this fall, and assert that the percentage of the laps Hmaalahtam one is the ratio of 1 to 3200, and stressed that this debris does not contain toxic substances. But they stressed that this debris is the king of them and no one has the right to dispose of it or sell it or cover it. It should be noted that the entry of the satellite of the atmosphere ground will be visible with the naked eye even during the day, as the friction moon with the atmosphere will lead to Tohjh severely. And falling debris the size of this satellite to the ground once a year on average, in the year the regular intervention of some 400 pieces of rubble from a satellite to the ground, including one up to the surface of the ground every week. In 2010, he fell to the ground from the wreckage of the satellite mass is equal to 75 tons.