Comparing the coverage and accuracy of IRNSS and Galileo navigation systems

November 05, 2022

IRNSS vs Galileo: Which Navigation System Reigns Supreme?

As technology continues to advance, satellite navigation systems are becoming increasingly sophisticated and accessible. Two such systems are the Indian Regional Navigation Satellite System (IRNSS) and Galileo navigation system. But which one is better? In this post, we'll take an unbiased look at the coverage and accuracy of each navigation system.


The IRNSS system, developed by the Indian Space Research Organization (ISRO), provides regional coverage over India and its surrounding regions. It consists of seven satellites, providing accurate positioning, navigation, and timing services.

In comparison, the Galileo system, which is a joint project of the European Union (EU) and European Space Agency (ESA), consists of a fully operational constellation of 30 satellites that provide global coverage. Galileo also operates with GPS and GLONASS to provide even better global coverage.


When it comes to accuracy, both systems are quite accurate, but Galileo has an edge over IRNSS. Galileo provides positioning accuracy of up to 1 meter (3.28 feet) while IRNSS provides accuracy within 7.5 meters (24.61 feet).

This is due to the use of advanced technologies such as more accurate atomic clocks, and higher power signals on Galileo. It is also due to the large number of Galileo satellites which leads to more accurate triangulation and therefore better accuracy.


So, which one is better? Well, it all depends on your needs. If you're in India or the surrounding regions, then IRNSS is the better option due to its comprehensive regional coverage. However, if you're traveling globally, then Galileo with its global coverage and greater accuracy makes more sense.

That being said, both systems are impressive feats of satellite technology and a true testament to our human ingenuity.


  1. "IRNSS," Indian Space Research Organization, last modified October 14, 2022,
  2. "Galileo," European Space Agency, last modified October 28, 2022,

© 2023 Flare Compare