High Earth Orbit.
After cleaning up the debris in orbit following the Last War, the empire had launched a few thousand satellites of their own. And among them was a constellation of satellites dedicated to monitoring the movement of mana around Earth. After all, it was a new discovery, so they needed to know how it worked and why, so it was worth studying. And as an added benefit, the empire had gained the capability to track the changes mana caused in its surroundings.
Currently, seven of the satellites responsible for monitoring mana were sending alarms to the staff of the imperial space agency.
……
Central Command, Ceres Station.