http://news.yahoo.com/s/ap/20080126/ap_on_go_ot/dead_satellite
Associated Press

WASHINGTON - A large U.S. spy satellite has lost power and could hit the Earth in late February or March, government officials said Saturday.

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The satellite, which no longer can be controlled, could contain hazardous materials, and it is unknown where on the planet it might come down, they said. The officials spoke on condition of anonymity because the information is classified as secret.

"Appropriate government agencies are monitoring the situation," said Gordon Johndroe, a spokesman for the National Security Council, when asked about the situation after it was disclosed by other officials. "Numerous satellites over the years have come out of orbit and fallen harmlessly. We are looking at potential options to mitigate any possible damage this satellite may cause."

He would not comment on whether it is possible for the satellite to be perhaps shot down by a missile. He said it would be inappropriate to discuss any specifics at this time.

A senior government official said that lawmakers and other nations are being kept apprised of the situation.

Such an uncontrolled re-entry could risk exposure of U.S. secrets, said John Pike, a defense and intelligence expert. Spy satellites typically are disposed of through a controlled re-entry into the ocean so that no one else can access the spacecraft, he said.

Pike also said it's not likely the threat from the satellite could be eliminated by shooting it down with a missile, because that would create debris that would then re-enter the atmosphere and burn up or hit the ground.

Pike, director of the defense research group GlobalSecurity.org, estimated that the spacecraft weighs about 20,000 pounds and is the size of a small bus. He said the satellite would create 10 times less debris than the Columbia space shuttle crash in 2003.

As for possible hazardous material in the spacecraft, Pike said it might contain beryllium, a light metal with a high melting point that is used in the defense and aerospace industries. Breathing beryllium can lead to chronic, incurable respiratory problems.

Jeffrey Richelson, a senior fellow with the National Security Archive, said the spacecraft likely is a photo reconnaissance satellite. Such eyes in the sky are used to gather visual information from space about adversarial governments and terror groups, including construction at suspected nuclear sites or militant training camps. The satellites also can be used to survey damage from hurricanes, fires and other natural disasters.

The largest uncontrolled re-entry by a NASA spacecraft was Skylab, the 78-ton abandoned space station that fell from orbit in 1979. Its debris dropped harmlessly into the Indian Ocean and across a remote section of western Australia.

In 2000, NASA engineers successfully directed a safe de-orbit of the 17-ton Compton Gamma Ray Observatory, using rockets aboard the satellite to bring it down in a remote part of the Pacific Ocean.

In 2002, officials believe debris from a 7,000-pound science satellite smacked into the Earth's atmosphere and rained down over the Persian Gulf, a few thousand miles from where they first predicted it would plummet.

If this is true, buy some Lockheed Martin and General Dynamics stock. Those things ain't cheap, nor are the launch vehicles.

WASHINGTON - President Bush has ordered the Pentagon to use a Navy missile to attempt to destroy a broken U.S. spy satellite — and thereby minimize the risk to humans from its toxic fuel — by intercepting it just before it re-enters the atmosphere, officials said Thursday.

The effort — the first of its kind — will be undertaken because of the potential that people in the area where the satellite would otherwise crash could be harmed, the officials said.

Deputy National Security Adviser James Jeffrey, briefing reporters at the Pentagon, did not say when the attempted intercept would be conducted, but the satellite is expected to hit Earth during the first week of March.

"This is all about trying to reduce the danger to human beings," Jeffrey said.

Gen. James Cartwright, vice chairman of the Joint Chiefs of Staff, said at the same briefing that the "window of opportunity" for such a shootdown, presumably to be launched from a Navy ship, will open in the next three or four days and last for seven or eight days. He did not say whether the Pentagon has decided on an exact launch date.

Cartwright said this will be an unprecedented effort; he would not say exactly what are the odds of success.

"This is the first time we've used a tactical missile to engage a spacecraft," Cartwright said.

After extensive study and analysis, U.S. officials came to the conclusion that, "we're better off taking the attempt than not," Cartwright said.

He said a Navy missile known as Standard Missile 3 would be fired in an attempt to intercept the satellite just prior to it re-entering Earth's atmosphere. It would be "next to impossible" to hit the satellite after that because of atmospheric disturbances, Cartwright said.

A second goal, he said, is to directly hit the fuel tank in order to minimize the amount of fuel that returns to Earth.

Software associated with the Standard Missile 3 has been modified to enhance the chances of the missile's sensors recognizing that the satellite is its target; he noted that the missile's designed mission is to shoot down ballistic missiles, not satellites. Other officials said the missile's maximum range, while a classified figure, is not great enough to hit a satellite operating in normal orbits.

"It's a one-time deal," Cartwright said when asked whether the modified Standard Missile 3 should be considered a new U.S. anti-satellite weapon technology.

Cartwright also said that if an initial shootdown attempt fails, a decision will be made whether to take a second shot.

Jeffrey said members of Congress were briefed on the plan earlier Thursday and that diplomatic notifications to other countries would be made before the end of the day.


Shooting down a satellite is particularly sensitive because of the controversy surrounding China's anti-satellite test last year, when Beijing shot down one of its defunct weather satellites, drawing immediate criticism from the U.S. and other countries.

A key concern at that time was the debris created by Chinese satellite's destruction — and that will also be a focus now, as the U.S. determines exactly when and under what circumstances to shoot down its errant satellite.

The military will have to choose a time and a location that will avoid to the greatest degree any damage to other satellites in the sky. Also, there is the possibility that large pieces could remain, and either stay in orbit where they can collide with other satellites or possibly fall to Earth.

It is not known where the satellite will hit. But officials familiar with the situation say about half of the 5,000-pound spacecraft is expected to survive its blazing descent through the atmosphere and will scatter debris — some of it potentially hazardous — over several hundred miles. The officials spoke on condition of anonymity because of the sensitivity of the matter.

The satellite is outfitted with thrusters — small engines used to position it in space. They contain the toxic rocket fuel hydrazine, which can cause harm to anyone who contacts it. Officials have said there is about 1,000 pounds of propellent on the satellite.

Known by its military designation US 193, the satellite was launched in December 2006. It lost power and its central computer failed almost immediately afterward, leaving it uncontrollable. It carried a sophisticated and secret imaging sensor.

If the Aegis system can't tackle this, it would indicate it isn't very good at tacking down strategic missiles, either.

it'll probably hit some 3rd world country that we don't care

oh hey, wait.......

"could" contain hazardous materials? Either we're incompetent, and we don't know what's in our own damn satellites, or it's radioactive, and no one will tell us.

They're pretty sure it's going to hit North America.

ill drink to it

Satellites ahead
So hold on
Satellites I said
So come on

They're saying it contains 500kg of a hazardous fuel. Russia is claiming that this is a test of a missile defense system. Would they rather we just let it fall to earth with no control of where it lands?

Our papers are saying it's over Ireland, US officials have been onto the dept. of Foreign Affairs here..
don't screw up my country please!!
Ye just know this is some new 9/11 thing waiting to happen.

Is thats where its expected to impact? I believe they're hoping to shoot it down when its over the Pacific.

From what I've read, a lot of 'space experts' think the whole thing is ridiculous since this happens all the time and the area the 'toxic chemicals' would affect is smaller than two football fields. Most people think its just an attempt to use the missile defense system.

We can't have the Chinese show us up.

the problem is they think its going to land in the far east and 'MAY' contain secrets that they want.

I say shoot the thing down and see what happens. 5-1 odds they miss

if its here, im selling it for the chineses

SHOT! DOWN!

Why would you consider the Chinese a safer bet than the US?

MONEY

Sweet! BOOM!