Fact Box: IRNSS-1A

July 3, 2013

ISRO successfully launches IRNSS-1A: India’s first navigation satellite

Indian Space Research Organization (ISRO) has successfully launched IRNSS-1A on PSLV C 22 from Satish Dhawan Space Centre, Sriharikota in Andhra Pradesh. It was for the first time ISRO has launched an India satellite at almost midnight taking into account the orbit and inclination at which the satellite will be injected into the space and the season of launch. Total seven satellites of the IRNSS constellation will be launched and the full constellation will be up during 2014 timeframe. The entire IRNSS satellite constellation will compromise of three satellites geostationary orbits and four in inclined geosynchronous orbits, of which IRNSS-1A is the first one.

Factbox: IRNSS-1A

IRNSS expands to Indian Regional Navigational Satellite System.
India’s first dedicated Indian Navigation Satellite System and has a life span of around 10 years.
Placed in an inclined geosynchronous orbit at 55 degree East longitude with an inclined orbit of 29 degrees with respect to the equator.
Positioned at 36,000 Kms altitude.
It is intended to provide terrestrial, aerial and marine navigation services and help in disaster and fleet management.
To provide accurate position information service for terrestrial (cars, goods transport, buses) aerial (flights) and maritime (shipping) navigation for users in India as well as neighbouring regions extending up to 1,500 km from India’s borders/boundaries, which will be its primary service area.

It will provide two types of services:

Standard Positioning Service (SPS) for all users
Restricted Service (RS), an encrypted service provided only to authorized users.

Applications of IRNSS:
Terrestrial, aerial and marine navigation, disaster management, vehicle tracking and fleet management, integration with mobile phones, precise timing, mapping and geodetic data capture, terrestrial navigation aid for hikers and travelers, and visual and voice navigation for drivers.

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