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-   -   Satellites in Space (http://www.trekbbs.com/showthread.php?t=218974)

EmoBorg July 7 2013 07:35 PM

Satellites in Space
 
I came across this interesting graph about satellites around our planet, Earth and i wanted to share it with you guys and girls.



http://farm5.static.flickr.com/4052/...c3c72533_b.jpg




The source is from the website below in case you need to know.

http://www.flickr.com/photos/michael...l-16135094@N00





BTW South Korea just had a successful launch of a satellite ,STSAT-2C, into space in 2013, after two previous failed attempts. This new data is not reflected in the graph above.

Chemahkuu July 7 2013 07:51 PM

Re: Satellites in Space
 
Break out a tinfoil hat and call me when I care.

EmoBorg July 7 2013 08:14 PM

Re: Satellites in Space
 
Quote:

Chemahkuu wrote: (Post 8346946)
Break out a tinfoil hat and call me when I care.

I agree that the heading does sound paranoid but that wasn't why I bought up the graph. I am more interested in the number of functional and dysfunctional satellites and the amount of space debris generated by the individual countries.

Metryq July 7 2013 08:14 PM

Re: Satellites in Space
 
I'll assume that "dysfunctional" satellites are all or mostly useless. ("There's a big difference between mostly dead and all dead.")

As for the size of the circles—is that number of satellites, or tonnage? The US, Russia and China appear to have launched about the same amount. Of that, Russia has the most big junk cruising around, and China has the most small debris. (And the US has the most active satellites.)

Whether active or not, all that stuff is a potential problem for other ships, especially manned ones. I'm reminded of:

* The UFO episode "Conflict!" where Straker is pushing for the clearance of all space junk because it is a hazard for SHADO's regular flights to Moonbase, and it is potential camouflage for alien ships.

* The Pixar film WALL*E showed so much junk in orbit that Earth is surrounded by a brown haze, like Los Angeles smog from the '70s. (Including Sputnik 1 or 2, which actually deorbited in only a matter of weeks after launch.)

EmoBorg July 7 2013 08:28 PM

Re: Satellites in Space
 
The huge amount of space debris that China has, was created when they tested an anti satellite weapon on one of their dysfunctional satellites in 2007.


The Russians have a huge amount of dysfunctional satellites dating back from their Soviet days.

Metryq July 7 2013 08:48 PM

Re: Satellites in Space
 
Quote:

EmoBorg wrote: (Post 8347078)
The huge amount of space debris that China has, was created when they tested an anti satellite weapon on one of their dysfunctional satellites in 2007.

Well, so long as they weren't "testing" it on someone else's functional satellites... that would be bad. (Or maybe they did, and we don't know about it. And the bulk of that Chinese space debris is what's left of their anti-satellite platform.)

"I'm fuzzy on the whole 'good-bad' thing. What do you mean by 'bad'?"

EmoBorg July 8 2013 03:45 AM

Re: Satellites in Space
 
Quote:

Metryq wrote: (Post 8347171)

"I'm fuzzy on the whole 'good-bad' thing. What do you mean by 'bad'?"

Do you mean the functional and dysfunctional satellites?

Metryq July 8 2013 10:14 AM

Re: Satellites in Space
 
^ Quote from GHOSTBUSTERS. ("Don't cross the streams. It would be bad.") I was referring to space warfare—blasting each other's satellites—as bad.

EmoBorg July 8 2013 05:59 PM

Re: Satellites in Space
 
I think the Soviets did have so called space mines in orbit during the Cold War. They were bascially satellites that could move near an enemy satellite and explode. They were said to be nuclear powered which means they had a lot of power to be active for a long time. I don' t think the Russians have launched any new space mines since the end of the Cold War. The Americans and Chinese like to use anti satellite missiles. If a war in space did break out, the resulting debris could make manned space missions dangerous. That is why i don' t think there will be a war in space between humans. The Americans, Russians and the Chinese will want to continue with their manned space missions.

Metryq July 9 2013 02:26 AM

Re: Satellites in Space
 
Quote:

EmoBorg wrote: (Post 8350600)
I think the Soviets did have so called space mines in orbit during the Cold War. They were bascially satellites that could move near an enemy satellite and explode.

I'm guessing you don't know anything about orbital mechanics. While a satellite can be shifted to a new orbit, this "space mines" idea would be terribly inefficient.

EmoBorg July 9 2013 05:07 AM

Re: Satellites in Space
 
Quote:

Metryq wrote: (Post 8353123)
I'm guessing you don't know anything about orbital mechanics. While a satellite can be shifted to a new orbit, this "space mines" idea would be terribly inefficient.


A nuclear powered satellite would not have such a problem. When the space mine uses it's nuclear power supply to increase the effect of the explosion, that explosion would have a large radius. Even if it does not physically cause the destruction of the enemy satellite, it could still fry the electronic circuits of the target to make it dysfunctional.

publiusr July 9 2013 08:40 PM

Re: Satellites in Space
 
This is probably what you were thinking about the Istrebitel combat Sputnik
http://www.astronautix.com/craft/isa.htm

Some spacecraft even were to be armed with cannon
http://www.astronautix.com/astros/nudelman.htm
http://en.wikipedia.org/wiki/Nudelman-Rikhter_NR-23

Cosmonauts had this until recently--the Russians are packing
http://en.wikipedia.org/wiki/TP-82

Comparison chart of weapons--Casaba howitzer is about as big as it got ship to ship
http://www.projectrho.com/public_htm...gunconvent.php

Crazy Eddie July 17 2013 06:48 AM

Re: Satellites in Space
 
Quote:

Metryq wrote: (Post 8353123)
Quote:

EmoBorg wrote: (Post 8350600)
I think the Soviets did have so called space mines in orbit during the Cold War. They were bascially satellites that could move near an enemy satellite and explode.

I'm guessing you don't know anything about orbital mechanics. While a satellite can be shifted to a new orbit, this "space mines" idea would be terribly inefficient.

Which the Russians eventually realized, and is one of the reasons they stopped using them.:p

Metryq July 17 2013 12:07 PM

Re: Satellites in Space
 
Quote:

Crazy Eddie wrote: (Post 8390893)
Which the Russians eventually realized, and is one of the reasons they stopped using them.:p

The Russians had interceptors, not "mines." Big difference.

Crazy Eddie July 19 2013 08:13 AM

Re: Satellites in Space
 
Yes, they started developing co-orbital interception vehicles (e.g. armed satellites, missile- and laser-based anti-satellite weapons and even an antiaircraft gun on one of their space stations) after it began to emerge that filling the sky with a bunch of orbiting bombs was a stupid way to cope with American spy satellites. They still TRIED it, though, and the exact nature of their experiments with those technologies is still not entirely clear since the only reason we know as much as we do about it NOW is because of ex-soviet Scientists willing to go public about it.


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