The Boeing-Lockheed Martin joint venture called the United Launch Alliance launched a satellite aboard a 19-story Atlas V rocket. With the launch of this satellite, US Air Force went a step ahead in modernization of Global Positioning System.
“The GPS constellation is the most robust and capable system in the history of space,” said Col. Steve Whitney, director of the Air Force’s Global Positioning System. “GPS is the critical enabler for the U.S. military to provide national security, and worldwide service for billions of users around the globe.”
Millions of people around the world use the military's GPS constellation on their smart phones and other devices for maps and directions.
The GPS constellation now includes 31 active satellites orbiting in six planes about 12,500 miles up.
Source: USA TODAY