Q. With respect to the Indian Regional Navigation Satellite System (IRNSS), consider the following statements:
- It is a constellation of seven satellites.
- Three satellites in geosynchronous orbit and four satellites in geostationary orbit.
- Its services will be available to regions extending up to 500 km from Indian boundaries.
Which of the statements given above is/are correct?
Answer:
Only 1
Notes:
- NavIC or the Indian Regional Navigation Satellite System (IRNSS) is designed with a constellation of 7 satellites and a network of ground stations operating 24×7.
- There are a total of eight satellites however only seven remain active.
- Three satellites in geostationary orbit and four satellites in geosynchronous orbit.
- The constellations' first satellite (IRNSS-1A) was launched on 1stJuly 2013 and the eighth satellite IRNSS-1I was launched in April 2018.
- It will provide two types of services: Standard positioning service meant for all users and restricted service which may be encrypted service provided only to authorised users (military and security agencies).
- It is designed to provide accurate real-time positioning and timing services to users in India as well as regions extending up to 1500 km from its boundary.
- India became one of the 5 countries having their own navigation system. So, India's dependence on other countries for navigation purposes reduces.
- In April 2019, the government made NavIC-based vehicle trackers mandatory for all commercial vehicles in the country in accordance with the Nirbhaya case verdict.