Courtesy: inShorts
Advantage of NAVIC :
1. India had 6 satellites revolving around the earth till now.With the launch of 7th satellite, 4 satellites will always be visible from India So these will be able to tell the precise location upto 100 metres.
2.Till now India has been mostly dependent on US for its GPS need. However,when the US denied GPS information during the kargil war 1999,India started work on its own GPS system.
3.The GPS system will be used for terrestrial, aerial and marine navigation, vehicle tracking, fleet management, disaster management, geodetic data capture and navigation for drivers.
4.The 7 satellites not only monitor the entire country but also potential threats by missiles, fighter planes. Another advantage of NAVIC is that signal are not affected by weather and cannot be jammed.
DRAWBACK:
It does not offer global coverage and covers only India and its neighbourhood. Commercial airline that fly over India will not install it because they already had GPS-tracking device on board.
Compared to the US GPS, which has a precision of 5m and global coverage, IRNSS covers a 1,500-km radius with India at the centre. However, it will reduce India’s dependence on the US and Russia’s GLONASS particularly during emergencies including military situations.
The IRNSS project was envisioned after the US denied GPS information during the Kargil war. Further, scientists say that while GPS is not available at all places, the indigenous system will provide signal even in remote areas with better accuracy.
