Recommendations for Ground Control Point Placement

The following guidelines are recommended for placement of control points in your AT tiles:

§  Distribute control points uniformly across the AT tile.

§  Make sure to add control points in the tile areas with the highest and lowest altitudes.

§  Begin control point creation by adding control points around the perimeter of the tile.

§  Control points should be created on a flat terrain or mesh that has no obstructions close by.