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They would have to adjust really quickly to track
But really tiny adjustments, because it's far away.
Also there's a spread in the beam, so that's nice.
Also, as I pointed out elsewhere here, there's a vacuum-bottle effect. You can just pump heat into it. And also you don't need to melt it, just overheat the electronics.
You need to move the point from one horizon to the other. Like the sun, satellites "rise" on one side and set on the other. All of that in less than 15min(in LEO).
You can watch the dishes turn.
That depends on its orbit. If you're pumping enough heat into the satellite, you can just aim it at a point in its path. Because space is a good insulator, it wouldn't lose that much heat each orbit.
The movement would need to be incredibly precise.
If the beam is powerful enough, you'd just aim beforehand and let the satellite slide into it. Not like the fucker can dodge.
Honestly the control electronics are not why this super doesn't work.
Yeah, you just need a bunch of geared stepper motors and a big computer. The atmosphere is the reason it almost certainly won't work
Could do it by hand, if you're patient enough. Again: not like the satellite has much say in the matter. It's gonna be at a specific point, at a specific time. You don't even need to cover the mirrors, since the sun won't be at the right angle for all of them to converge until that intended moment.