Multimedia Gallery
- Search Terms: Satellite
The image shows accuracy to within a radius of about 148 feet (45 meters).
This artist's rendition of a new generation of GPS satellites.
GPS satellites are positioned in precise, circular orbits 18,000 kilometers (11,000 miles) above the Earth. They orbit once every 12 hours.
Length: 7 Minutes, 3 Seconds
The first military GPS five-channel receiver, weighing 270 pounds.
Jim Whittaker uses a Magellan GPS receiver on Mt. Rainier.
A Smithsonian researcher using high-precision GPS to survey a sand dune.
A tactical unmanned aerial vehicle for providing close observation in hazardous situations.
How did the USS Alabama navigate?
From maintaining infrastructure, transporting goods, delivering services, or just meeting friends, people often use technology just as sophisticated as that used by pilots and soldiers. How does it work?
