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ISRO opens navigation centre for satellite system

Posted: 31 May 2013     Print Version  Bookmark and Share

Keywords:Indian Space Research Organisation  Navigation Centre  Indian Regional Navigation Satellite System  Indian Deep Space Network  satellites 

The Indian Space Research Organisation has unveiled its Navigation Centre near Bangalore for the proposed Indian Regional Navigation Satellite System (IRNSS), an independent navigation satellite system being developed by India.

Established at Indian Deep Space Network (IDSN) complex at Byalalu, about 40 km from Bangalore, the centre was inaugurated by Union Minister of State in the Prime Minister’s Office (PMO) V. Narayanasamy.

IRNSS will have a constellation of seven satellites and enable its users to determine their location and time accurately. These satellites will positioned in geostationary and inclined geosynchronous orbits 36,000 km above the earth's surface. IRNSS coverage will extend over India and its neighborhood and the satellites are equipped with high precision atomic clocks and continuously transmit navigation signals to users.

The IRNSS will help terrestrial, aerial and marine navigation services, along with disaster and fleet management.

As the focal point of many critical operations of IRNSS, ISRO Navigation Centre is responsible for providing the time reference, generation of navigation messages and monitoring and control of ground facilities including ranging stations of IRNSS, ISRO said in a release.

“It hosts several key technical facilities for supporting various navigation functions and the key to the navigation support is the time reference to which all ground systems and the satellite clocks are synchronised.”

The first of the navigation satellites (IRNSS-IA) is scheduled to be launched on board home-grown rocket, PSLV-C22 XL, on June 12, from its spaceport at Sriharikota.

IRNSS will have a network of 21 ranging stations geographically distributed primarily across India. They provide data for the orbit determination of IRNSS satellites and monitoring of the navigation signals. The data from the ranging/monitoring stations is sent to the data processing facility at INC where it is processed to generate the navigation messages. The navigation messages are then transmitted from INC to IRNSS satellites through the spacecraft control facility at Hassan/Bhopal. The data processing and storage facilities at INC enable swift processing of data and support its systematic storage.

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