And they can time it so they get the sun at the same relative location for each photo pass. https://en.m.wikipedia.org/wiki/Sun-synchronous_orbit https://en.m.

And they can time it so they get the sun at the same relative location for each photo pass. https://en.m.wikipedia.org/wiki/Sun-synchronous_orbit https://en.m.wikipedia.org/wiki/Sun-synchronous_orbit