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  #1  
Old 02-11-2009, 08:57 PM
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fender-bender

2 big satellites collide 500 miles over Siberia

1 hr 57 mins ago
CAPE CANAVERAL, Fla. – Two big communications satellites collided in the first-ever crash of two intact spacecraft in orbit, shooting out a pair of massive debris clouds and posing a slight risk to the international space station.
NASA said it will take weeks to determine the full magnitude of the crash, which occurred nearly 500 miles over Siberia on Tuesday.
"We knew this was going to happen eventually," said Mark Matney, an orbital debris scientist at Johnson Space Center in Houston.
NASA believes any risk to the space station and its three astronauts is low. It orbits about 270 miles below the collision course. There also should be no danger to the space shuttle set to launch with seven astronauts on Feb. 22, officials said, but that will be re-evaluated in the coming days.
The collision involved an Iridium commercial satellite, which was launched in 1997, and a Russian satellite launched in 1993 and believed to be nonfunctioning. The Russian satellite was out of control, Matney said.
The Iridium craft weighed 1,235 pounds, and the Russian craft nearly a ton.
No one has any idea yet how many pieces were generated or how big they might be.
"Right now, they're definitely counting dozens," Matney said. "I would suspect that they'll be counting hundreds when the counting is done."
As for pieces the size of micrometers, the count will likely be in the thousands, he added.
There have been four other cases in which space objects have collided accidentally in orbit, NASA said. But those were considered minor and involved parts of spent rockets or small satellites.
Nicholas Johnson, an orbital debris expert at the Houston space center, said the risk of damage from Tuesday's collision is greater for the Hubble Space Telescope and Earth-observing satellites, which are in higher orbit and nearer the debris field.
At the beginning of this year there were roughly 17,000 pieces of manmade debris orbiting Earth, Johnson said. The items, at least 4 inches in size, are being tracked by the U.S. Space Surveillance Network, which is operated by the military. The network detected the two debris clouds created Tuesday.
Litter in orbit has increased in recent years, in part because of the deliberate breakups of old satellites. It's gotten so bad that orbital debris is now the biggest threat to a space shuttle in flight, surpassing the dangers of liftoff and return to Earth. NASA is in regular touch with the Space Surveillance Network, to keep the space station a safe distance from any encroaching objects, and shuttles, too, when they're flying.
"The collisions are going to be becoming more and more important in the coming decades," Matney said.
Iridium Holdings LLC has a system of 65 active satellites which relay calls from portable phones that are about twice the size of a regular mobile phone. It has more than 300,000 subscribers. The U.S. Department of Defense is one of its largest customers.
The company has spare satellites, and it is unclear whether the collision caused an outage. An Iridium spokeswoman had no immediate comment.
Initially launched by Motorola Inc. in the 1990s, Iridium plunged into bankruptcy in 1999. Private investors relaunched service in 2001.
Iridium satellites are unusual because their orbit is so low and they move so fast. Most communications satellites are in much higher orbits and don't move relative to each other, which means collisions are rare.
Iridium Holdings LLC, is owned by New York-based investment firm Greenhill & Co. through a subsidiary, GHL Acquisition Corp., which is listed on the American Stock Exchange. The shares closed Wednesday down 3 cents at $9.28.

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Old 02-11-2009, 09:24 PM
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To much traffic!
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  #3  
Old 02-11-2009, 10:31 PM
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Very bad news for everything that orbits the earth. Debris from a collision of satellites in polar orbits will extend over the the entire planet, presenting a hazard to space travel for hundreds of years.
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Old 02-11-2009, 11:50 PM
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you got a link to this article.a buddy of mine is an ins adjuster .i can have some fun with this.
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Old 02-12-2009, 12:01 AM
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Darn, I thought this was going to be about Eddie Van Halen's new guitar.
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Old 02-12-2009, 12:03 AM
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Dang Russian satellites, they need to learn how to drive!
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Old 02-12-2009, 05:50 AM
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We need some traffic control up there.
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Old 02-12-2009, 10:12 AM
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750 billion miles of space and we still can't get along
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Old 02-12-2009, 10:39 AM
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Maybe I should do the subrogation for Iridium - wonder if the Russians had insurance? Is there a KBB for satellites?
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Old 02-12-2009, 01:29 PM
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now that's Sirius.
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Old 02-13-2009, 03:11 PM
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Quote:
Originally Posted by Mistress View Post
now that's Sirius.
Who's on first?
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  #12  
Old 02-13-2009, 04:18 PM
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Quote:
Originally Posted by Botnst View Post
Who's on first?
First Wave....obviously
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Old 02-13-2009, 04:40 PM
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First Wave....obviously
But no punk. And "Faction" really need not apply.
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  #14  
Old 02-14-2009, 12:54 AM
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Quote:
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Darn, I thought this was going to be about Eddie Van Halen's new guitar.
Nope Eddies still playing a Les Paul. No crummy fender for him
Now that's diversity, we can argue over anything
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Old 02-15-2009, 10:29 PM
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The Sky is Falling !!!

Flaming chunks of satellite debris starting grassfires in Central Texas

http://www.star-telegram.com/804/story/1205766.html

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