Seven-satellite plan set for domestic GPS network

Japan plans to establish a network of four satellites in the latter half of this decade to improve the accuracy of its global positioning system, government officials said Friday.

In the future, Japan will set up a network of seven "quasi-zenith" satellites to set up a GPS system independent of the one operated by the United States, the officials said.

A ministerial council comprising the Cabinet and headed by Prime Minister Yoshihiko Noda made the decision Friday.

Read the rest of the story: Seven-satellite plan set for domestic GPS network.

Japan eyes building its very own GPS system

Japan is considering launching new satellites to establish its own global positioning system (GPS) in a bid to reduce its reliance on the US navigation network, officials said on Wednesday.

In September, Japan launched a rocket carrying its first satellite intended to improve GPS systems widely used by Japanese motorists for navigation as well as by aviation and maritime operators.

The government’s space development strategy headquarters, headed by Prime Minister Naoto Kan, is now discussing plans to launch additional satellites, said an official.

"There is a proposal that our country should secure its own GPS as it is now fully relying on the US system," the official said.

Read the rest of the story: Japan eyes building its own GPS system.