Harris Corporation has delivered the sixth of ten contracted advanced navigation payloads to Lockheed Martin for the US Air Force’s GPS III satellite programme.
The GPS III navigation payload features a mission data unit with a 70% digital design that links atomic clocks, radiation-hardened processors and 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.
Harris navigation payloads are already integrated on five GPS III satellites. The first GPS III space vehicle is expected to be launched in December 2018 and the GPS III SV02 in 2019. GPS III SV03 and SV04 are fully assembled and currently undergoing environmental testing. GPS III SV05 was integrated with its payload in autumn 2018 and will begin system testing later this year.
Harris will deliver the seventh navigation payload by the end of 2018.