Tell it to Ankit Panda.
Melissa Hanham, deputy director of the Open Nuclear Network at the One Earth Foundation, believes that the resolution is so high, it may be beyond the physical limits at which satellites can operate.
And this lady.
Melissa Hanham is a policy specialist, not a physicist or optics engineer. She has no particular expertise in this area.
If you don't believe me then do the math yourself. It's easy enough to figure out the maximum diameter of a KH-11 based on the size of the available launch vehicles. And from that you can calculate the maximum resolving power. They can play some tricks with adaptive optics and digital image processing but that doesn't add much.
> "In addition, changing to a 2.4-meter mirror would lessen fabrication costs by using manufacturing technologies developed for military spy satellites."
PDF: https://web.archive.org/web/20170205104821/https://history.m...
They're 2.4 meters at their smallest, with later KH-11's possibly being larger. But even 2.4 meters is enough to get way better image quality than has been publicly released.
Case in point the satellite photo Trump leaked - leading civilian experts were dumbfounded that such a clear image from a satellite was even possible, let alone already deployed and in use.
Commercial applications for that would be huge, yet it’s staying secret.