The U.S. Space Force awarded Lockheed Martin a $514 million contract to build two additional GPS satellites, expanding the military's next-generation positioning, navigation, and timing constellation. The order represents a continuation of the GPS III program, which has been deploying advanced satellites since 2018 to modernize the aging GPS infrastructure that underpins military operations, financial systems, telecommunications, and civilian infrastructure worldwide.
GPS III satellites carry atomic clocks three times more accurate than their predecessors and transmit signals four times stronger than the original GPS constellation. These performance improvements reduce positioning errors and enhance resilience against jamming and spoofing, critical capabilities for modern military operations and civilian applications dependent on precise geolocation.
Lockheed Martin, the primary contractor for GPS modernization since the program's inception, has delivered multiple GPS III satellites to orbit. The latest contract extends production beyond the original constellation plan, reflecting the Space Force's commitment to maintaining continuous coverage and redundancy across its satellite fleet. Each GPS satellite remains operational for 15 years or longer, requiring periodic replenishment launches to sustain the system's global coverage and reliability.
The GPS constellation operates at an altitude of roughly 12,500 miles, with satellites distributed across six orbital planes. This geometry ensures that receivers anywhere on Earth maintain line-of-sight contact with at least four satellites simultaneously, enabling three-dimensional positioning calculations accurate to meters or better.
The Space Force manages GPS operations through the 50th Space Wing at Schriever Space Force Base in Colorado. Beyond military applications, GPS serves as critical infrastructure for emergency services, power grid synchronization, and financial markets. The system's reliance on precision timing makes it a strategic national asset vulnerable to adversarial interference, underscoring why the Space Force prioritizes constellation modernization and resilience enhancements through programs like GPS III.