The entire IRNSS constellation of seven satellites is planned to be completed during 2015-16. IRNSS is designed to provide position information in the Indian region and 1,500 km around the Indian mainland.
It would provide two types of services: Standard Positioning Services (SPS) - to all users - and Restricted Services (RS) - only to authorised users.
The first satellite of the constellation, IRNSS-1A, was placed into orbit by ISRO's Polar Satellite Launch Vehicle, PSLV-C22, 20 minutes after take-off from Satish Dhawan Space Centre, Sriharikota. The solar panels of the 1,425 kg satellite were deployed automatically.
After injection into elliptical orbit, ISRO's Master Control Facility in Hassan (Karnataka) assumed control of the satellite. In the coming days, it will conduct five orbit manoeuvres to position the satellite in its Geosynchronous Circular Orbit at 55 degrees East.
A number of ground stations responsible for the generation and transmission of navigation parameters, satellite control, satellite ranging and monitoring have been established in 15 locations across India.