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azimuth

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  1. [measurement, geodesy] A direction measured in degrees clockwise from north starting at a given point, from 0 to 359.9. Azimuth may also be the direction from which a light source illuminates a surface. 

    Media/azimuth.gif
  2. [navigation, measurement] In navigation, the horizontal angle, measured in degrees, between a reference line drawn from a point and another line drawn from the same point to a point on the celestial sphere. Normally, the reference line points true north, and the angle is measured clockwise from the reference line.

  3. [remote sensing, measurement] In satellite image collection, the direction the sensor is pointing, measured in degrees, which varies from 0° to 360°, starting with north at 0°.

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