Datum (geodetic) Definition - MilitaryDictionary.org

datum (geodetic)

1.) A reference surface consisting of five quantities: the latitude and longitude of an initial point, the azimuth of a line from that point, and the parameters of the reference ellipsoid.

2.) The mathematical model of the earth used to calculate the coordinates on any map. Different nations use different datum for printing coordinates on their maps.

In the United States, military vocabulary is standardized by the Department of Defence. These terms are used by the United States Army, Navy, Air Force, and Marine Corps.

Term Classification: intelligence