0 the point in the orbit (= curved path) of the moon or a satellite when it it is closest to the earth -- （月亮或人造卫星的）近地点
The satellite was allowed to drift a safe distance from the space shuttle before the perigee motor was fired.
An argument of perigee of 90 degrees would likewise serve the high southern latitudes.
There has been the need to develop the perigee apogee stage, which adds further costs.
The burn raised both the apogee and perigee of the shuttle's orbit by 1mi km.
Explorer 3 was placed in an orbit with a perigee of 186 kilometers and an apogee of 2799 kilometers having a period of 115.7 minutes.
With this engine firing, the spacecraft's apogee was raised to 28,825 km, with a perigee of 252 km.
Its orbit had a perigee of, an apogee of, 70 degrees of inclination, and an orbital period of 88.8 minutes.
This burn decreases the orbit's perigee to about 15 km, some 500 km ahead of the lunar south pole, half an orbit later.
