The modernized series delivers increased signal power to receivers on the ground, two new military signals for improved accuracy, enhanced encryption and anti-jamming capabilities for the military, and a second civil signal to provide users with an open access signal on a different frequency.

"The launch of another GPS satellite provides our warfighters a system on which they can depend to complete their missions successfully," said Brig. Gen. Susan Helms, the 45th Space Wing commander.

GPS is the world's foremost space-based positioning and navigation system. Endeavors such as mapping, aerial refueling, rendezvous operations, geodetic surveying and search and rescue operations have all benefited from GPS's accuracy.

The GPS constellation provides critical situational awareness and precision weapon guidance for the military and supports a wide range of civil, scientific and commercial functions -- from air traffic control to the Internet -- with precision location and timing information.

"From an engineering standpoint, the processing flow of this mission went very smoothly," said 1st Lt. Cory Broussard, a 1st Space Launch Squadron Delta II booster operations controller. "It's great to be a part of the Global Positioning System team launching a satellite that can help servicemembers and civilian users around the world."

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