Which countries can build ASATs and why ?

Abdus Salem killed

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Which countries of the world can build a feasible asat like China USA Russia and India

Why can they build it
How much work has been done etc
 

WarriorIndian

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Israel , Japan and developed European countries like France, Britain and Germany may certainly develop one but cannot upset uncle sam by doing it. If Uncle Sam did not have anything to do with anyone testing anything, I am sure at least 80% of the countries on the planet would be holding each other's collars armed to teeth with latest weaponry.
 

Abdus Salem killed

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Israel , Japan and developed European countries like France, Britain and Germany may certainly develop one but cannot upset uncle sam by doing it. If Uncle Sam did not have anything to do with anyone testing anything, I am sure at least 80% of the countries on the planet would be holding each other's collars armed to teeth with latest weaponry.
So how could we do it and they couldn't stop us
 

Indx TechStyle

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I am sure at least 80% of the countries on the planet would be holding each other's collars armed to teeth with latest weaponry.
How many of 200+ countries around world are even sizeable. There would be multiple powers in Europe, Americas and Asia. But these all just 10-15 biggie countries.
These 10-15 countries have 70-80% of global, economy, industry, population, area and technology etc.. Rest just exist for the name.
 

Sigmamale101

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Only those countries who have massive humam resources ( massive proper scientific & engineering base ) Most importantly a military industrial complex.
In india this base is at a certain stage neither big nor small.
 

no smoking

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Which countries of the world can build a feasible asat like China USA Russia and India

Why can they build it
How much work has been done etc
Shooting a missile or whatever weapon to destroy a satellite doesn't equal ASAT capability.
A massive land/sea/sky based supervising network;
Decades accumulated data of monitoring foreign space objects' activities in the space;
A well planned/equipped, fully trained space war force.

For now, US is the only country has the full capability, Russia has a limited one, China is still working in the progress, India just starts.
 

mokoman

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Shooting a missile or whatever weapon to destroy a satellite doesn't equal ASAT capability.
A massive land/sea/sky based supervising network;
Decades accumulated data of monitoring foreign space objects' activities in the space;
A well planned/equipped, fully trained space war force.

For now, US is the only country has the full capability, Russia has a limited one, China is still working in the progress, India just starts.
read that US NORAD tracks space debris ,waste left behind from launches and old satellites , tools astronauts lost in space like wrench , nut , bolts

:hmm: how do u even track something so small up there in space.
 

mist_consecutive

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read that US NORAD tracks space debris ,waste left behind from launches and old satellites , tools astronauts lost in space like wrench , nut , bolts

:hmm: how do u even track something so small up there in space.
If you know the mass and velocity of the object at any point, you can accurately calculate its trajectory. Basic Newtonian mathematics.

They don't even need radars or stuff like that.
 

Okabe Rintarou

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Scott Manley dropped a video on the Russian Noodle test. He briefly mentioned how the Indian ASAT test had just one piece of debris left in orbit after 2 years.

Shooting a missile or whatever weapon to destroy a satellite doesn't equal ASAT capability.
A massive land/sea/sky based supervising network;
Decades accumulated data of monitoring foreign space objects' activities in the space;
A well planned/equipped, fully trained space war force.

For now, US is the only country has the full capability, Russia has a limited one, China is still working in the progress, India just starts.
1.) We have intel sharing agreement with USA that includes space situational awareness.
2.) Most satellite data is made public by USA for civilians around the globe.
3.) India's Space Fence is being built as we speak.
4.) A full fledged Space Force would have co-orbital killer satellites, among other assets. What is being talked about is an ASAT capability which can only target satellites orbiting directly overhead. India is very capable of tracking satellites over its airspace and targeting them with an ASAT. Work on co-orbital killers and military rockets to launch them has also started. There is a Defence Space Agency in India which is basically a nascent Space Force since its under a two-star general. Some time next decade it will be upgraded to a Space Command under a three-star General and then maybe by 2050 we see an Indian Space Force under a four-star general. So its not wrong to say that India has ASAT capability.
5.) Future Indian destroyer classes will have radars like DRDO LRMFR, powerful enough to track satellites flying over them and will also have the required missiles that can shoot them down (at least for LEO sats) AD-2. Meaning India will become able to shoot down satellites avoiding overflying Indian airspace.
6.) We should all remember that MAD is equally applicable to Kinetic Kill of satellites as it is to Nukes.

If you know the mass and velocity of the object at any point, you can accurately calculate its trajectory. Basic Newtonian mathematics.

They don't even need radars or stuff like that.
Not that simple. There is a drag that alters trajectory because LEO isn't exactly vacuum. There is some atmosphere there which is why satellites need to do station keeping burns from time to time. The deviation in the orbit due to the drag is somewhat unpredictable.
And even without the air drag, with simple Newtonian Mechanics, there is the problem that the satellite is in the Earth Moon system, making its orbit a three-body problem. Most three-body problems don't have an analytical solution, meaning you only get a numerical solution i.e. an approximation, which drifts from the real value if you don't keep tracking it at least intermittently.
 

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