Satellite navigation system is the system that uses Satellites to provide accurate positioning, navigation and tracking of anything. Presently we are using GPS Global Positioning System for navigation purpose. We all know that all our phones are built with GPS receivers. Most of the people did not know that GPS is the Navigational System of America. It is appreciable that America is providing that service for no cost i.e., for free. Like that there are 4 other navigational systems of their respective countries
Glonass - Russia
Beidou - China
Galileo - European Union
Quasi Zenith - Japan
IRNSS - India
Now India is also going to launch our own Navigational system called NavIC (or) Indian Regional Navigational System.
Indian Regional Navigational Satellite System (IRNSS) :
Our IRNSS mission consists of constellation of 7 satellites namely IRNSS-1A, 1B, 1C, 1D, 1E, 1F, 1G. Out of these 7 satellites 3 satellites are placed in Geo-Stationery Orbits and 4 Satellites are placed in Geo-Synchronous Orbits. Recently ISRO has sent all these 7 satellites to their respective orbits. Compared to GPS ours navigation system will cover only India and also extend 1,500 km from its boundaries. IRNSS provide two types of services
· Encrypted Service
· Standard Positioning Service
This service is only available to authorized users. Especially for Security purposes. So, this service is mostly available to Army, Naval and Air force Commanders. With this we can locate our enemies that are trying to enter our country without permission.
Standard Positioning Service:
This service is available to all users in India. This service is for navigational purpose. Presently we use Google Maps with the help of GPS Receivers that are built in in our device. After IRNSS becomes active then our satellite system receivers will replace the present GPS receivers.
· Terrestrial, Aerial and Marine Navigation.
· Disaster Management.
· Vehicle Tracking and Fleet Management.
· Integration with Mobile Phones.
· Terrestrial Navigation Aid for Hikers and Travelers.
When will IRNSS become operational?
At present ISRO has completed one work i.e., sending satellites to space and most important work is Setting up Ground systems to track and locate the signals of those satellites is still going on. ISRO has spent more than 1,000 Crores for this Project. So, as soon as the ground work gets completed then we can use our own satellite navigation system.