NGS - Aeronautical Survey Program acquires aerial photography of major airports in the United States to support aeronautical surveys, including Airport Obstruction Chart (AOC) and Area Navigation Approach (ANA).The high resolution photographs are used to make photogrammetric measurements of obstruction heights, delineate aircraft movement areas and associated airport features, and are useful when performing ground surveys.
The ASP Photo Gallery contains "center shot" photos (100 dpi scan) of airports surveyed FY99 to present. New images will be added when available.   The  ASP Survey Tracking Tables   provide a listing of airports that have or will be surveyed over a 2 year period.