@GustavinoBevilacqua @sundogplanets Yeah, and even if they steered the mirror (which wouldn't be hard, earth observation satellites can track a point on the ground), a satellite in low orbit could only keep the spot aimed at a particular patch of ground for minutes at a time before the satellite disappears below the horizon
An actually usable mirror satellite would need to be in GEO, and that would necessitate a much larger mirror to get a useful spot size