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Though the odds of any individual person getting struck by detritus is low, the odds that it hits one of the 7 billion people on Earth is surprisingly high: After the launch of a school bus-sized satellite in 2011, Mark Matney, a scientist in the Orbital Debris Program Office at NASA's Johnson Spac
el would fall back to Earth anytime over the next week. Mark Matney, a scientist in the Orbital Debris Program Office at NASAs Johnson Space Centre in Houston, said the odds that any of the 7 billion people on Earth will be struck by a piece that makes it back through the atmosphere is 1 in 3,200.
"It's a relatively uninhabited portion of the world, very remote. This is certainly a good spot in terms of risk, said NASA orbital debris scientist Mark Matney.The bus-sized satellite, which weighs 5,897 kilograms was sent into orbit aboard a space shuttle mission in 1991 to study Earths upper at
"The spacecraft orbits the Earth in 90 minutes, so even if we're off by a few minutes in the prediction - that's thousands of kilometres down range," said Mark Matney, an orbital debris scientist from Nasa's Johnson Space Center.
Date: Sep 23, 2011
Source: Google
Satellite Crash Landing Expected Friday, But Where?
Some of the satellite will burn up upon re-entry, but Mark Matney of NASA's Orbital Debris team told CNN that the space agency expects about 26 pieces, or about half a ton, of the UARS to survive the heat and fall to Earth.
Date: Sep 22, 2011
Category: Sci/Tech
Source: Google
Where On Earth Will NASA's Doomed Satellite Fall On Friday?
"With re-entry we're always interested in day-by-day and hour-by-hour details," Mark Matney, a scientist with NASA's Orbital Debris Program Office, told SPACE.com. "It's very difficult to predict how it's going to happen. With our models, we try to figure out what parts of the spacecraft wh
Date: Sep 22, 2011
Source: Google
26 pieces of falling satellite likely to survive plunge, NASA says
Because the satellite travels thousands of miles in a matter of minutes, even minutes before re-entry, it will be impossible to pinpoint an exact location, Mark Matney of NASA's Orbital Debris team said Wednesday. On top of that, he said, "part of the problem is the spacecraft is tumbling in unpredi
The satellite, which monitored ozone and other chemicals in the upper atmosphere for 14 years, is slowing because it is now traveling in low orbit, where it encounters resistance from the upper atmosphere, said NASA space debris scientist Mark Matney. As the density of the atmosphere it is passing t