what is apogee & perigee?
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When satellite is in elliptical orbit, the center of earth is one of the focal points of ellipse. In this type of satellite orbit, distance of satellite from earth varies based on its position.
Here, two points are very important viz. highest point and lowest point above earth.
The heighest point is known as Apogee.
The lowest point as depicted in the figure is known as Perigee.
The apogee and perigee are measured including radius of the earth. Hence to calculate apogee and perigee from above the earth's surface radius part is substracted from above figures.
Here, two points are very important viz. highest point and lowest point above earth.
The heighest point is known as Apogee.
The lowest point as depicted in the figure is known as Perigee.
The apogee and perigee are measured including radius of the earth. Hence to calculate apogee and perigee from above the earth's surface radius part is substracted from above figures.
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