Navigation:  Glossary > Plane azimuth

In northern hemisphere, the plane azimuth is defined as the angle between south and collector plane. This angle is taken as negative toward east, i.e. goes in the antitrigonometric direction.

Example: south plane, azimuth = 0, east plane, azimuth = -90°.

In southern hemisphere, the plane azimuth is defined as the angle between north and collector plane. This angle is taken as negative toward east, i.e. goes in the trigonometric direction.