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US Satellites Dodging Chinese Missile Debris
Posted by
CmdrTaco
on Sat Jan 12, 2008 11:48 AM
from the fakes-left-dodges-right dept.
from the fakes-left-dodges-right dept.
GSGKT writes "Today's Washington Times runs a story about the increasing problem with space junk orbiting the earth. Debris from the anti-satellite missile test by the Chinese military last year threatens the integrity of more than 800 operating satellites, half of them belonging to the US. Two orbiting U.S. spacecraft were forced to change course to avoid being damaged soon after the incident. Air Force Brig. Gen. Ted Kresge, director of air, space and information operations at the Air Force Space Command in Colorado, estimates that
"essentially (Chinese anti-satellite tests) increase the amount of space debris orbiting the Earth by about 20 percent", and the debris might threaten spacecraft for up to 100 years."
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Well (Score:5, Funny)
Re:Well (Score:5, Informative)
You're not real familiar with how orbits work, are you?
Since that crap is in low orbit, I'm pretty sure it circles the entire planet every couple of hours.
Unless, of course, the Chinese have developed some sort of non-newtonian thruster system that lets their space trash hover in one place.
Parent
Re: (Score:3, Informative)
Re: (Score:3, Informative)
As long as that one place is somewhere on the equator, yes -- which China isn't.
Anyway geostationary orbit is about 22000 miles higher up than the orbits of the space trash and other satellites of interest.
Re:Well (Score:5, Informative)
Parent
Re:Well (Score:5, Insightful)
"We didn't attack your satellites, we attacked our own (*cough*and used it to create a floating fragmentation grenade*cough*)"
Parent
Re: (Score:3, Informative)
SanctionThem? (Score:5, Insightful)
What's left, political pressure? Because of how much China listens to political pressure concerning their own policies? Military pressure?
I do not see it.
That's a laugh! (Score:5, Funny)
Parent
Re:That's a laugh! (Score:5, Insightful)
Remember who bought up all the steel reserves and is now slowly selling it back to the US? Have you ever been inside ANY manufacturing plant...at all..ever?
US industry would SHUT DOWN ENTIRELY if china pulled the plugs, or be cripplingly disadvantaged compared to the rest of the world if they decided to place punitive tarrifs. And if you think this is limited to crappy dvd players and laser pointers, do not forget that factory farms that are responsible for your daily food run off harvesters and harvester parts made primarily from components from china.
Do you have any idea how the world around you works at all?
Parent
Re:That's a laugh! (Score:4, Interesting)
I don't know if it was by accident or on purpose but we are using up china's steel. While keeping our own stockpiled natures way. Our companies can't compete on price, and closed down, but if price was no longer the issue then we have all sorts of resources available to us. Sure it would take a while to get going again. Lots' of little experience has been lost but If it came right down to it the USA is one of the few countries who could survive such an economic collapse.
Other than Oil and rubber the USA could be self sufficient. We have more than enough old tires floating around that rubber would last until we could get back up on our feet.
While It would hurt the long term repercussions wouldn't be any worse than the great depression. indeed another massive depression could very well be the spark that sets it off.
Parent
Re:That's a laugh! (Score:4, Interesting)
Of course that's Iraq under the US military, but still...
Looking elsewhere, Darfur is much more violent than the US. Colombia too. Etc.
However I'm pretty sure the US is the most violent in the modern Western developed world. It may perhaps also qualify, among all countries, as the country with the most aggressively violence-prone foreign policy.
Parent
Re: (Score:3, Interesting)
The thing is, the US will have to do everything it possibly can to prop its economy up - the real value of the US dollar is not in what it can buy & sell, but in the very fact that it's the de facto currency for buying & selling. Take that away, and the US dollar is at the mercy of its
Re:SanctionThem? (Score:5, Insightful)
With the US economy decelerating and the loss of confidence in the US dollar, the US can't afford to stop trading with China. This move would essentially crash the global economy, and the US has the most to lose due to its massive foreign debt.
Most people don't realise just how rotten the American economic policy is. Back in 71, Nixon realised that the US could no longer finance the Vietnam war without printing money like mad. But the gold standard prevented the Fed from doing that, so he unilaterally cancelled the Bretton Woods system that made the US dollar convertible to gold. This was a total surprise, because he neglected to consult international bankers, and became known as the Nixon Shock. So from that moment on, the US effectively started printing gold. Of course this move didn't fool the bankers around the world, so the Fed had to raise interest rates to 21%/year to convince them to carry on using dollars. Over many years, the markets sort of returned to normal, despite the fact that the US debt had risen to unprecedented levels.
In 2006, the Fed was printing so much money that it stopped publishing the M3 money supply data in order to hide this fact. So now no one really knows how much money the Fed prints. We just estimate that the US foreign debt grows at the rate of $3 billion per day, mostly due to overseas military spending and interest on the already existing debt. This is despite the fact that the US is creating money out of thin air to partially cover this debt. A consequence is that the dollar has fallen in value about 15% in the last year against the Euro.
It bothers me a lot when the Fed governors propose what they call "financial incentive packages". These are usually composed of tax rebates and the central banks injecting money into the markets. Again, it's more money that was created out of thin air, and the tax rebates reduce the government's capacity to cover that money or to cover the debt. It's a temporary fix to the longstanding lack of financial discipline.
The general population typically doesn't care, and this includes Slashdot readers. They think that economics is awfully boring and complicated, and that the government is capable of taking care of policy. But the opposite is happening, and the US debt is getting out of control. This spending obviously makes politicians and contractors a lot of money, so they'll keep doing it until the economy crashes.
Parent
Re: (Score:3, Insightful)
That's backwards. The US has the least to lose, because a debt represents a good that we consumed but have not yet paid for. The first order of business in an economic collapse is to freeze or otherwise abate all foreign debts.
Either that, or we would just fail to
Re: (Score:3, Insightful)
This is true to a certain extent; with America owing such a huge amount, nobody's really keen to do anything that would force them to default. However... if America ever did default, that would have consequences that lasted far longer than the ensuing world
Re:SanctionThem? (Score:4, Insightful)
That would essentially mean that the end of all trading. So, the US would have to revert to a self-sustaining economy. US consumes the most resources in the planet per human being and that is not really feaseable.
That would lead to imports crashing as well. Then, prices would go up and cause inflation. Then, everything will be worth less and less and foreign buyers will just buy up everything - companies, technology etc. Our stuff will also be sold on ten cents to the dollar out there.
That is until the Chinese economy is the largest in the world which might be in 10-15 years.
It's only best milk cow as long as the milk flows.
I've seen so people many buy shit they can't afford, live in the moment, default on loans and then file bankruptcy which absolves them of all responsibility since somebody somewhere will bear the burden of it all. I think you're suggesting a similar approach to the economy. I am skeptical of this approach.
Parent
Re: (Score:3, Insightful)
Anything that is already in orbit before you get there is your responsibility to avoid.
So if your satellite blows up because someone "new junk" damages it then that countries/entities responsibly for the damage to the satellite and future damage from the consequential debris from it.
When it comes to collecting against governments there are tons of ways to collect if they have the money. The most likely be
Re: (Score:3, Funny)
Well? What would you expect from Xeonphobes? (Score:4, Funny)
Weapons (Score:5, Interesting)
Re: (Score:3, Insightful)
It basically points out that it would be pretty stupid to have everything reply on delicate electronics in space, and sorry, it's not that easy to beat the US military, no matter how unpopular its presidents actions may be.
"The US has no weapon systems that are GPS guided and never has, precisely because it is vulnerable. The Chinese may have just now gotten around to developing anti-satellite technology, but the Soviet Uni
Re: (Score:3, Insightful)
Actually it was good strategy (Score:4, Interesting)
It doesn't hurt them so much but it definitely harms other countries.
Give it time... (Score:4, Interesting)
...so? (Score:5, Funny)
Re:...so? (Score:4, Funny)
Parent
Re:...so? (Score:5, Funny)
Never mind, no joke gets better by explaining it.
Parent
Re:...so? (Score:4, Funny)
Parent
Re: (Score:3, Interesting)
The only thing to NASAs credit today is JPL and the robotic missions. Those don't totally suck.
However, I don't think we can do it 100 years from now, given that we've gone essentially nowhere for the past 40.
Bizarro am happy.
Planetes (Score:5, Interesting)
Where's the news? (Score:5, Funny)
Oh, that it's now also in space? That's the news here, I guess?
Great Weapon (Score:4, Informative)
Reminds me of an anime... (Score:3, Informative)
Re:Huh? (Score:4, Informative)
Parent
Re:Huh? (Score:5, Funny)
Parent
Re: (Score:3, Funny)
Re: (Score:3, Insightful)
Re:Huh? (Score:4, Insightful)
Does point out a problem with space warfare though. With current technologies or anything resembling them, there's only going to be one battle and a short one at that. After a few dozen satellite destructions, there will likely be so much junk in orbit that near earth satellite lifetimes will be measured in weeks and manned spaceflight will be ill advised for decades or maybe centuries.
Parent
Re:maybe that's what the chinese wanted (Score:4, Informative)
According to the Joint Space Operations Center at Vandenberg Air Force Base in California, the commercial communication satellite Orbcomm FM 36 maneuvered to avoid passing within about 123 feet of the debris field on April 6. A NASA Earth observation satellite Terra was moved June 22 to avoid coming within about 90 feet of the debris.
Parent
Re: (Score:3, Informative)
And I'm going to go out a limb here, and assume you didn't read the article.
Of course, you cou
Re:Right when the Chinese dump junk in space: (Score:5, Funny)
Let them come. According to the RIAA we got way more than enough pirates to handle them. Yarr!
Parent
Re:Possible outcome. (Score:4, Insightful)
The US military is completely dependant on their technology and the rest of the world knows it. Do their cruise missiles even work without GPS?
Any war by the US against a significantly developed nation runs the risk of rendering space completely useless for the next century. Think about the collateral damage from such a war taking out weather/TV/communications on top of the GPS which would almost certainly be targeted on purpose. The economic damage from that stupidity would be huge.
Letting the Americans know that was most likely a major reason behind the missile test in the first place and it's also why the Americans won't retaliate.
Parent
Re:Possible outcome. (Score:5, Informative)
The US has no weapon systems that are GPS guided and never has, precisely because it is vulnerable. The Chinese may have just now gotten around to developing anti-satellite technology, but the Soviet Union had it ages ago.
The core guidance package of US weapon systems is extremely high precision inertial navigation (all systems described as "GPS-guided" are actually inertial -- the media is a bit stupid about these things, as GPS is an optional untrusted overlay on inertial navigation systems). Some intelligent terrain following weapons also use optical geo-referencing. As a matter of policy going back to the Soviet Union days, the US military machine views satellite systems as "nice to have" but its infrastructure is pervasively designed to operate under the presumption that there are no satellites in orbit. The vulnerability of the US military to massive system outages is greatly overstated; the Soviet Union was a much bigger threat on this scale than the Chinese are, and the US military has always been pretty religious about designing systems whose functionality was robust and in the face of rapidly degrading military infrastructure and relatively decentralized. It is easy to forget it, but the Chinese have nothing on the old Soviet Union in terms of technology and force numbers, and that was the doctrinal enemy of much of the modern US military.
Parent
Communications ... (Score:4, Interesting)
- communication satellites (all Command and Control over distances longer than say 20-80 Km; both voice and data).
- reconnaissance satellites (radar reconnaissance satellites, photo reconnaissance satellites, infra-red imaging satellites)
As far as I am aware, most of the emerging "networked" aspects of the military depend on satellite communications. The control of and imagery from Unmanned Aerial Vehicles, and all those automated little messages that collect information from many sensors to where it's combined, analysed, interpreted, and redistributed as terms of a coherent picture of what's where, down to the target coordinates. I believe that we saw both in Kosovo and in the Iraq war how extremely powerful those systems are.
In other words: if someone can destroy those satellites, the US military will -at a stroke- loose its single largest unmatched advantage. So one might imagine that there is some reason for concern.
Parent
Re:Possible outcome. (Score:4, Insightful)
Yeah, many great statements have always followed that opening.
Consider that GPS, when functional, is used to seed initial starting positions, but inertial nav packs are used to provide guidance. Other back up systems include other inertial nav packs, stationary fixes, and celestial navigation.
Consider that the GPS system can be knocked out. But, it's pretty damned hard to change the known locations of fixed locations, its damn near impossible to block good old centuries proved navigation by heavenly objects (unless the Chinese have an unknown deal with Klingons and Vogons) and with modern time keeping and the ability to shoot the stars with computer, it is surprising accurate.
Had you involved yourself at all with your country's military, beyond letting the press inform you, you'd have never made this mistake.
But, you can go on with your, "My best friend's sister's boyfriend's brother's girlfriend heard from this guy who knows this kid who's going with the girl who saw Ferris pass out at 31 Flavors last night. I guess it's pretty serious."
Pullllease, "I heard that..."
Parent
Re: (Score:3, Informative)
Sorry got something stupid stuck in my throat. Anyways as I was saying the US has plenty of weapons sytems that use GPS systems and would either become completely ineffective or seriously crippled without it."
As was pointed out elsewhere, neither JDAMs nor Tomahawks (nor F16s for that matter) use GPS guidance -- only technically ignorant tools claim that any US weapon systems use GPS guidance. Even rudimentary research shows that systems like JDAMs and Tomahawk
Re: (Score:3, Insightful)
NIce try (Score:3, Informative)
I would like to see a complete ban on anti-satellite technology that results in there being any debris.
The Chinese test was pretty irresponsible and they could have proven that they have the capabilities through other means. The US test was in direct response to the USSRs test. One of the last cold war cock waving events.
That said, after Bush's little speech; which certainly implied that
Re: (Score:3, Interesting)
"In April 1988, the two Democratic chambers of Congress voted against extending the ASAT ban"
"The ban on using the MIRACL laser against space targets lapsed in 1996, when the new Republican Congress opted not to renew it."
"in August 2004 the U.S. Air Force published a doctrine on "Counterspace Operations" which affirmed its readiness to conduct "operations to deceive, disrupt, deny, degrade, or d