May 26, 17 / Can 06, 01 17:25 UTC
So, what is the deal with those URBOCOPS mentioned in Constitution Draft?
I see nice picture, but asteroid this size do not posses danger to Earth. It would be hundreds time bigger. The plan is to "shot" it down with laser? Asteroid have no engine, and no structure, you can not cripple it, you can not stop it. Even worse, if you slow it down, it will be even faster pulled by Earth Gravity. And even assuming it is traveling only at around Earth escape velocity of 11.2 km/s, you will have few seconds to shot it down, even with hundred of kilometers reaching laser. Once asteroid is this close, it is far too late to stop it.
I see no point in putting any defense structures on Earth Orbit. To protect from rogue asteroids, you have to reroute them, not attempt to destroy porous, or solid gigantic rock. So you need Hauler Rocket, with similar speed, and travel vector to asteroid. That means you have to keep such Rocket Base thousands of kilometers from Earth. The best position would be at Moon, as it is always near Earth, plus it can provide material for building/fuel, and have so small gravity, that rockets would not use much fuel to launch.
The problem may occur, when asteroid do not approach from Moon Orbit ecliptic. Thoughts?