$this->bbcode_second_pass_quote('Tanada', 'N')obody is shooting at satalites 35,000 km up, the ones in danger are those in the 150-300 km band, like the ISSA!
You can hit one of those with an air launched intercept package and some halfway decent computer programming for targeting. The US system is launched via F-15 and was perfected and shelved in 1983-1986. The thing is, nobody really wants to do this because the junk level would make it very difficult to launch replacements for a decade or so, which would leave you just as handicapped as your oponent.
PeakOil is You
All kinds of Junk
Re: Space Junk and More Lies.
by Dreamtwister » Sat 03 Feb 2007, 16:19:51
Correct me if I'm wrong here, but aren't the bulk of US precision targeting systems dependant on GPS? And aren't GPS satellites in MEO (between 2,000 and 35,786 km)? If I were the Chinese, the GPS constellation would be my number 1 target. In the event of war, the US would want to turn on selective availability anyway, so the Chinese would already be locked out. They would have nothing to lose by attacking the GPS network, but it would damage US capabilities immensely.
And aren't most communications satellites in geostationary orbit (35,786 km)?
That's not to say there are no good targets in low orbit of course. Lots of spy satellites are in the 150-2000 range.
$this->bbcode_second_pass_quote('PolestaR', 'E')asy to say "spin control" but maybe you can tell me why it isn't better for the USA to detect the missile the moment it launched and then mention it to the media the next day? Sounds to me like they weren't sure and wanted more data to see if it indeed was a missile launch. But hey, I'm all ears to your 5 day reason.
I'm sure they had to have a few high-level meetings to determine how best to tell the sheeple that their precious multi-trillion dollar satellite network is now completely defenseless. If they just blurted it out the next day, they might not be able to control the panic.
And that's what this game is all about, isn't it? Panic control?
But you do have a valid point. They likely retasked one of their own satellites to go take a gander at the wreckage and verify the Chinese claims.
The whole of human history is a refutation by experiment of the concept of "moral world order". - Friedrich Nietzsche
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Dreamtwister - Intermediate Crude
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Re: Space Junk and More Lies.
by MD » Sat 03 Feb 2007, 16:39:39
We really don't want to be blowing things up in low orbit, unless you are in favor of abandoning space sooner rather than later.
Stop filling dumpsters, as much as you possibly can, and everything will get better.
Just think it through.
It's not hard to do.
Just think it through.
It's not hard to do.
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MD - COB
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Re: Space Junk and More Lies.
by pedalling_faster » Sat 03 Feb 2007, 16:47:09
$this->bbcode_second_pass_quote('TITAN', 'I') would love to have seen the look on the top brass' faces when they heard of the news that China can now knock down anything they want, whenever they want.
One problem though, how do the Chinese know exactly where our satellites are? I guess they could just scan for anything emitting any type of signal, then find out what that signal is...
One problem though, how do the Chinese know exactly where our satellites are? I guess they could just scan for anything emitting any type of signal, then find out what that signal is...
it's typical for satellites to use millimeter wave. some decent antennas & low noise amplifiers, and a spectrum analyzer and a vector network analyzer, and they're off to a start. (in case anyone is concerned, information has been in the public domain for at least 20 years.)
there's a lot of junk floating around in space. if i was an astronaut i'd be asking for a more bullet-proof vest.
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pedalling_faster - Permanently Banned
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Re: Space Junk and More Lies.
by Tanada » Sat 03 Feb 2007, 22:36:44
$this->bbcode_second_pass_quote('Dreamtwister', '')$this->bbcode_second_pass_quote('Tanada', 'N')obody is shooting at satalites 35,000 km up, the ones in danger are those in the 150-300 km band, like the ISSA!
You can hit one of those with an air launched intercept package and some halfway decent computer programming for targeting. The US system is launched via F-15 and was perfected and shelved in 1983-1986. The thing is, nobody really wants to do this because the junk level would make it very difficult to launch replacements for a decade or so, which would leave you just as handicapped as your oponent.
You can hit one of those with an air launched intercept package and some halfway decent computer programming for targeting. The US system is launched via F-15 and was perfected and shelved in 1983-1986. The thing is, nobody really wants to do this because the junk level would make it very difficult to launch replacements for a decade or so, which would leave you just as handicapped as your oponent.
Correct me if I'm wrong here, but aren't the bulk of US precision targeting systems dependant on GPS? And aren't GPS satellites in MEO (between 2,000 and 35,786 km)? If I were the Chinese, the GPS constellation would be my number 1 target. In the event of war, the US would want to turn on selective availability anyway, so the Chinese would already be locked out. They would have nothing to lose by attacking the GPS network, but it would damage US capabilities immensely.
And aren't most communications satellites in geostationary orbit (35,786 km)?
That's not to say there are no good targets in low orbit of course. Lots of spy satellites are in the 150-2000 range.
GPS sats are in the 20,000 km band where they can orbit every 12 hours, the bulk of miltary sats are in egg shaped orbits with the apogee in the low band for clearer picture/radar imagry. If you are going to target them the easiest time is when they are at closest approach, which is also when they would be taking imagery of your own territory.
Low level com relay sats send data streams from medium orbit up to geostationary, where the stable comsats beam it back down to earth. To communicate with satalites on the far side of the planet they beam to a relay sat or directly up to geostationary, where the info is then beamed down. To talk to ISSA when it is not directly over the USA or FSU the signal is bounced through two or more sats on each leg of its journey up and down.
$this->bbcode_second_pass_quote('Alfred Tennyson', 'W')e are not now that strength which in old days
Moved earth and heaven, that which we are, we are;
One equal temper of heroic hearts,
Made weak by time and fate, but strong in will
To strive, to seek, to find, and not to yield.
Moved earth and heaven, that which we are, we are;
One equal temper of heroic hearts,
Made weak by time and fate, but strong in will
To strive, to seek, to find, and not to yield.
) one in South Australia by the way. Theres also a second dump 1.5km NE north also within 1km of this development. SSW within 2km is a sand mining operation with trucks entering and leaving 24/7. Price of a block of land (350 to 750 Square meters) in this area: AU $250 - 500,000. What are these people thinking 
