Focus: GS III- Science and technology
Why in News?
The Centre informed that the usage of Indian Regional Navigation Satellite System (NaviC system) has increased in India.
What is NavIC?
- NavIC, or Navigation with Indian Constellation, is an independent stand-alone navigation satellite system developed by the Indian Space Research Organisation.
- NavIC was originally approved in 2006 at a cost of $174 million. It was expected to be completed by late 2011, but only became operational in 2018.
- NavIC consists of eight satellites and covers the whole of India’s landmass and up to 1,500 km (930 miles) from its boundaries.
- Currently, NavIC’s use is limited. It is being used in public vehicle tracking in India, for providing emergency warning alerts to fishermen venturing into the deep sea where there is no terrestrial network connectivity, and for tracking and providing information related to natural disasters.
How does NavIC compare?
- The main difference is the serviceable area covered by these systems.
- GPS caters to users across the globe and its satellites circle the earth twice a day, while NavIC is currently for use in India and adjacent areas.
- Like GPS, there are three more navigation systems that have global coverage –
- Galileo from the European Union,
- Russia-owned GLONASS
- China’s Beidou
- QZSS, operated by Japan, is another regional navigation system covering Asia-Oceania region, with a focus on Japan.
- India’s 2021 satellite navigation draft policy stated the government will work towards “expanding the coverage from regional to global” to ensure availability of NavIC signal in any part of the world.
Why is India promoting NavIC?
- NavIC is conceived with the aim of removing dependence on foreign satellite systems for navigation service requirements, particularly for “strategic sectors.”
- Relying on systems like GPS and GLONASS may not always be reliable, as those are operated by the defence agencies of respective nations and it is possible that civilian services can be degraded or denied.
- NavIC is an indigenous positioning system that is under Indian control. There is no risk of the service being withdrawn or denied in a given situation.
- India also wants to encourage its ministries to use NavIC applications to promote local industry engaged in developing indigenous NavIC-based solutions.