With a non-circular orbit you can maximize the time spent over your target area by having a high apogee over target, and a lower perigee. https://en.wikipedia.

With a non-circular orbit you can maximize the time spent over your target area by having a high apogee over target, and a lower perigee. https://en.wikipedia.org/wiki/Molniya_orbit https://en.wikipedia.org/wiki/Molniya_orbit