0 the point in the orbit (= curved path) of the moon or a satellite when it it is closest to the earth :
It does so within the limits established by the combined eccentric and epicyclical apogees and their combined perigees.
There has been the need to develop the perigee apogee stage, which adds further costs.
After being secured in the shuttle cargo bay, a new perigee kick motor was installed.
With this engine firing, the spacecraft's apogee was raised to 28,825 km, with a perigee of 252 km.
An argument of perigee of 270 degrees places apogee at the northernmost point of the orbit.
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.
It will be the fourth longest eclipse of the 21st century with a magnitude of 1.0774 occurring just one hour before perigee.
