How do Japan’s QZSS and India’s NavIC provide regional navigation services?

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Cruise ship captain in uniform studies navigational charts with a compass on a table in the ship's bridge. — navigation Officers on a passenger ship using charts for navigation.

Japan’s Quasi-Zenith Satellite System (QZSS) and India’s Navigation with Indian Constellation (NavIC) are specialized satellite-based systems designed to provide high-precision navigation services within specific geographic regions.1

Unlike global systems such as GPS or GLONASS, which utilize large constellations of satellites to provide worldwide coverage, QZSS and NavIC focus their infrastructure to ensure reliable, localized positioning and timing data. Both systems became operational in 2018 to serve their respective regional requirements, offering enhanced accuracy and availability for civilian and commercial applications within their target areas. By operating as regional utilities, these systems reduce dependency on foreign-controlled global networks for critical infrastructure and local navigation needs.1