The Indian Regional Navigation Satellite System (IRNSS) is India's regional satellite navigation system that provides accurate real-time positioning and timing services. It uses a constellation of 7 satellites in geostationary and geosynchronous orbits with an inclination of 29 degrees. The system has 3 segments - space segment consisting of the satellites, ground segment for monitoring and control of the satellites, and user segment involving IRNSS receivers to obtain position. The satellites work on L5 and S bands to broadcast navigation signals for various applications like terrestrial, aerial and marine navigation.

4. IRNSS Mission
Working Principle
Future Applications

6. Source: upscadda.orgSource: upscadda.org

8. Figure: 1 Different spectrum of electromagnetic radiatiom
Source: Wikipedia.com

9. Source: isro.gov.in

10. Figure: 2 Inclination of satellites
Source: youtube.com

12. Figure: 3 Geostationary and Geosynchronous orbit
Source: quora.com

14. IRNSS
Space Segment
Ground Segment
User Segment

18. Figure: 4Visualization of working of IRNSS
Source: isro.gov.in

21. Internet Document
IRNSS.
Available online at http://www.isac.gov.in/navigation/irnss.jsp, checked on 11/6/2016.
Internet Document
Missions - ISRO
(2016). Available online at http://www.isro.gov.in/missions-0, updated on 11/5/2016, checked on
11/6/2016.
Internet Document
Wikipedia (Ed.) (2016):
Indian Regional Navigation Satellite System - Wikipedia.
Available online at https://en.wikipedia.org/w/index.php?oldid=745502910, updated on
10/25/2016, checked on 11/6/2016.