An observation satellite for mapping purposes is placed in a low Earth orbit.In order to see the whole surface of the Earth,which would be the preferred orbit?
A)an equatorial orbit
B)a polar orbit
C)an orbit inclined 45° to the equator
D)It doesn't matter since the Earth turns completely every 24 hours.

Question

Quizplus · Accepted Answer

A polar orbit allows the satellite to pass over both the North and South poles, giving it a complete view of the Earth's surface. An equatorial orbit would only allow the satellite to see a strip of the Earth's surface along the equator, while an orbit inclined at 45° to the equator would only cover part of the Earth's surface. The Earth's rotation does not affect the choice of orbit for a mapping satellite.

An Observation Satellite for Mapping Purposes Is Placed in a Low