Upper Atmospheric Research Satellite UARS or run out of fuel in 2005 and is now falling toward Earth. NASA space junk experts predict this weather satellite will hit Earth on September 23. The estimates were much faster than previous reports.
UARS was launched in 1991 by the Space Shuttle Discovery. This satellite aims to measure the levels of ozone, wind speed and temperature at the satellite stratosfer.Kemungkinan is going to hit someone on Earth with the likelihood ratio is 1:3.200. If that were the case, then it is an accident the first time in history that a person injured by the debris- space debris.
U.S. space agency said that the bus-sized satellite could land at a point between 57 degrees north and 57 degrees south, the location is almost entirely inhabited by the population on this planet.
NASA spokeswoman Beth Dickey, confirm the reason UARS early fall because a sharp increase in solar activity. The effects of the sun can make an additional attraction to the satellite in space. Because the sun can heat the Earth's atmosphere and causing the satellite to expand.
Meanwhile, astronomers from the UK Association of Science and Discovery Centres, Dr Ian Griffin, said that the Earth's atmosphere has a very large role in slowing the fall of satellites. Dr Ian added that whatever is left of the UARS satellite will hit the ground though still relatively slow.
Many of the satellite that fell to Earth will be destroyed by heat caused by friction with the atmosphere. Because the UARS form a fairly large, an estimated half a tonne of carcass or fragments remain until the satellite to Earth.
The satellite is currently being tracked by the Space Operations Center Joint U.S. Strategic Command at Vandenberg Air Force Base in California. But NASA admitted they did not really know where or when the satellite will fall.
"If you find something that might be cut from UARS, warned to not touch it," said NASA spokesman said. "Contact local security officials for help."
Indonesia Safe from NASA Satellite Debris
According to Prof. Thomas, satellites usually fall through the equator while the position of Indonesia located at the equator.
Upper Atmosphere Research Satellite Weather Satellite (UARS) NASA will fall to Earth in a matter of days. NASA estimates that satellite to the ground on Friday, September 23.
Six-ton satellite debris that could potentially fall in densely populated residential area with the opportunity override those very small debris, which is 1:3.200. Indonesia Residents may breathe because of the possibility to fall in the region is very thin ground water.
"The possibility of debris fell on a small residential area," says Senior Researcher of Astronomy and Astrophysics Institute of Aeronautics and Space Agency, Prof. Dr. Thomas Djamaluddin, to INILAH.COM. "The satellite of this kind usually fall through the equator. Given the position of Indonesia located at the equator, then the possibility of falling debris (in Indonesia) would be very small."
According to the NASA report, the satellite will fall between 57 degrees north latitude and 57 degrees south latitude. Half of this satellite debris will burn in the atmosphere and the rest going to the ground. Prof. Thomas added that some debris from a NASA satellite will fall into the ocean, mountains and deserts.
Currently, the position of the satellite is at 190 km above the Earth's surface and speed to arrive at the point of the fall is 120 km. Point will occur in a matter of days. According to Prof. Thomas, joined the satellite debris falling speed is affected sunlight. (source)
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