GPS III satellite payload Archives - Inside GNSS - Global Navigation Satellite Systems Engineering, Policy, and Design

September 6, 2019

Deep-Space Clock Could Blaze Trail to Improved GNSS Accuracy

The U.S. National Aeronautic and Space Administration (NASA) has activated an orbiting ultra-precise atomic clock orbiting aboard a spacecraft provided by General Atomics Electromagnetic Systems. If the clock performs as well in space as it has in the lab, losing only one second every 10 million years, the technology could enable far-reaching deep space missions—and improve the accuracy of GNSS timing and positioning.

By Inside GNSS

November 1, 2018

Harris Corp. Delivers Sixth GPS III Satellite Navigation Payload

Harris Corporation has provided Lockheed Martin with its sixth of 10 advanced navigation payloads contracted for the U.S. Air Force’s GPS III satellite program, the company announced today.

The GPS III navigation payload features a Mission Data Unit (MDU) with a unique 70-percent digital design that links atomic clocks, radiation-hardened processors and powerful transmitters – enabling signals three times more accurate than those on current GPS satellites. The payload also boosts signal power, which increases jamming resistance by eight times and helps extend the satellite’s lifespan.

By Inside GNSS

December 15, 2017

Harris Corp. Delivers Fourth GPS III Satellite Navigation Payload; Establishing a Proven, Reliable Production Cadence

Completing the fourth delivery of 10 navigation payloads for Lockheed Martin’s GPS III satellites, Harris Corporation delivered the advanced navigation payload for the fourth GPS III Space Vehicle (SV04) to Lockheed Martin on October 29 – establishing a proven and reliable production cadence. Harris delivered two payloads in 2017 and is committed to delivering four more in 2018.

By Inside GNSS

August 9, 2017

Harris Corp. Delivers Navigation Payload for Third Lockheed Martin GPS III Satellite

The MDU performs the primary mission of the GPS satellite, which is generation of the navigation signals and data that provide precise time information to users on a continuous basis. Photo: Harris Corp.

Harris Corporation has delivered the third of 10 advanced navigation payloads to Lockheed Martin, which will increase accuracy, signal power and jamming resistance for U.S. Air Force GPS III satellites.

By Inside GNSS