Some links for you: https://space.stackexchange.com/questions/3868/is-photography-from-a-satellite-good-enough-to-make-out-a-person-on-the-ground https://space

Some links for you: https://space.stackexchange.com/questions/3868/is-photography-from-a-satellite-good-enough-to-make-out-a-person-on-the-ground https://space.stackexchange.com/questions/3868/is-photograph... http://boards.straightdope.com/sdmb/showthread.php?t=627617 http://boards.straightdope.com/sdmb/showthread.php?t=627617 https://everything2.com/title/Spy+satellites+can%2527t+read+your+license+plate https://everything2.com/title/Spy+satellites+can%2527t+read+... A perfect 2.4-meter mirror observing in the visual (500 nm) would have a diffraction limited resolution of around 0.05 arcsec, which from an orbital altitude of 250 km would correspond to a ground sample distance of 0.05 m. Operational resolution should be worse due to effects of the atmospheric turbulence. https://en.wikipedia.org/wiki/KH-11_Kennen https://en.wikipedia.org/wiki/KH-11_Kennen