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GPS NEWS
Japan launches satellite for better GPS system
by Staff Writers
Tokyo (AFP) Aug 19, 2017


Japan on Saturday launched the third satellite in its effort to build a homegrown geolocation system aimed at improving the accuracy of car navigation systems and smartphone maps to mere centimetres.

An H-IIA rocket blasted off at about 2:30 pm (0530 GMT) from the Tanegashima space centre in southern Japan, according to the Japan Aerospace Exploration Agency (JAXA).

The rocket successfully released the "Michibiki" No.3 satellite about 30 minutes after launching.

"The rocket flew as planned, and the agency confirmed that the Michibiki No.3 was released with no abnormalities 28 minutes and 37 seconds after the launch," an official statement said.

The launch was initially scheduled last week but was postponed due to a technical glitch.

Satellite geolocation systems, initially designed for the US military, now power countless civilian applications, from car navigation to internet browsing on mobile phones.

Japan relies on the US-operated Global Positioning System (GPS). Saturday's launch was part of a broader plan to build a domestic version with four satellites focusing on the country and wider region.

The first satellite was put into orbit in 2010 and the second was launched in June.

The fourth is to be launched by March 2018 to start up the service.

The Japan-built system will still need to operate in tandem with GPS.

Though GPS is widely used in Japan, having supplementary satellites is important in a country where mountainous terrain and high buildings may interfere with its signals.

Michibiki, meaning "guidance" in Japanese, will cover the Asia-Oceania region and is intended for civilian use.

Japan plans to boost the number of its satellites in orbit to seven by around 2023.

GPS NEWS
Harris delivers navigation package for third GPS III satellite
Washington (UPI) Aug 11, 2017
Harris has delivered its third navigation package to Lockheed Martin for use on U.S. Air Force GPS III satellites expected to first launch next year. The navigation system is mostly digital and has computers and atomic clocks shielded against radiation. "We are now in full production and on target to deliver the fourth GPS III navigation payload to Lockheed Martin this fall," Har ... read more

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