Okay, so the focus was the cooling water intake to the nuclear plant. So okay, it was monitoring the intake to a power plant. What ever for? If we
propose that was the focus and it was hovering, and the plant was operating, we might be able to conclude it was measuring the volume of water
going in as one means to determine the size of the reactor core based on the flow of water required to cool it…

What else(?)

edit on 28-3-2017 by intrptr because: additional