noun
apocenter; apoapsis
Technical term in astronomy and orbital mechanics for the point in an orbit farthest from the central body.
人工衛星が最遠点に達した。
The satellite reached its apocenter.
遠地点 specifically refers to the apogee (farthest point from Earth), while 最遠点 is a more general term for any central body.
Compound of 最 (most) + 遠 (far) + 点 (point), literally 'most distant point'.