You searched for: “perigee
perigee (s) (noun), perigees (pl)
The point nearest the Earth's center in the orbit of the moon or a satellite: A perigee is the point at which the orbiting object, like the moon, is closest to the Earth's center.

A perigee is the point in any orbit nearest to the body being orbited.

This entry is located in the following units: geo-, ge- + (page 23) peri- (page 8)