GIS Dictionary

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off-nadir

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  1. [remote sensing] In satellite imagery, the number of degrees that the sensor varies from a vertical view when pointing directly downward from the platform. Also called angle of obliquity or elevation angle. Media/off-nadir.gif
  2. [photogrammetry] In imagery, the angle between the vertical from the sensor's perspective center to a point directly below the optics—or nadir—and another point on the ground.

See also