. . . this will also change the incidence angle. We would like to keep the incidence angle fairly low too, but since we orbit the terminator, it's not easy to get both angles to be less than thirty degrees.
These are the problems we encounter when we're just taking one picture. When we want to take a whole bunch of pictures, we have a whole new set of constraints and problems. For one, we can take a maximum of 600 pictures a day. Also, there are limitations of the time we're in the 100 kilometer orbit, and what we can do while we're there.