Cheolian

Cheolian (Zhenian: 천리안), formally the Cheolian Global Satellite Navigation System (Zhenian: 천리안 전지구위성항법체계), is a space-based system owned and operated by the Zhenia Space Agency. It provides global coverage for and  via radionavivigation-satellite services with those that have a receiver that is covered by in theory three or more Cheolian satellites in. Although the system originally started out as a more regional satellite navigation system suited for Tarsis and the Hanmaric Ocean, the program shifted into providing global coverage of satellite navigation in the late 1580s.