Office of Geomatics: Geodetic Survey Request


The National Geospatial-Intelligence Agency (NGA) Geodetic Survey Division (SNS) performs worldwide surveys in support of DoD/IC objectives; to provide ground truth, airfield surveys and a wide variety of geodetic/geophysical data to support DoD flight safety, inertial navigation systems and weapon system testing and evaluation.

The National Geospatial-Intelligence Agency (NGA) Geodetic Survey Division (SNS) provides geodetic positions based on the World Geodetic System 1984 (WGS 84) and orthometric heights based on Earth Gravity Model of 2008 (EGM 08). The survey division provides astro-geodetic deflections, geoid heights, gravity values, precise distances, true azimuths, astronomic positions, azimuths and geodetic control to accuracies of one part- per-million. Increased accuracies are achieved using state-of-the-art equipment and techniques. The quick responsiveness of the NGA Geodetic Surveys Division to customer requirements is key. Our inability to provide this response would have huge impacts on systems testing as they rely solely on NGA survey data for accuracy and range safety.

To request NGA geodetic survey support for projects, please send the completed NGA Survey Request Form to

Survey Equipment

Point of Contact: Geodetic Surveys Division
Phone (314) 676-9152, DSN 846-9152

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