By Staff Sgt Antonio Gonzalez
Air Force Public Affairs Agency
The Global Positioning System is celebrating its 20th anniversary today! On July 17, 1995, the Air Force officially declared the GPS fully operational. The system is a constellation of orbiting satellites that provides navigation data to military and civilian users all over the world. The system is operated and controlled by just seven Airmen, averaging 23 years in age, at the 50th Space Wing at Schriever Air Force Base, Colorado.
Find out how GPS operates from one of those Airmen: