Title: What are various GNSS systems? – Geospatial World
Headings: What are various GNSS systems?
What are various GNSS systems?
Global Positioning System (United States)
GLONASS (Russia)
Galileo (EU)
BeiDou (China)
QZSS (Japan)
IRNSS ― NAVIC (India)

Content: IRNSS ― NAVIC (India)
T he Indian Regional Navigation Satellite System ( IRNSS ), which was later given the operational name of NavIC or NAV igation with I ndian C onstellation, is the regional satellite navigation system of India. Launched and operated by the Indian Space Research Organisation (ISRO), IRNSS covers India and nearby regions extending up to 1,500 km. All the seven satellites are in orbit, but the first satellite – IRNSS A – is not functioning now since some time last year ISRO reported that all three atomic clocks on it have failed. ALSO READ: What are the top upcoming projects from ISRO? ISRO’s bid to launch a replacement satellite failed in August 2017 when in a rare occurrence the heat shield of the launch vehicle failed to separate to release the satellite. Currently, three IRNSS satellites of it are in the geostationary orbit and other 4 are in geosynchronous orbits. There is still some time before India starts getting its services.