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Made in India Navigation system GAGAN becomes operational next year

GAGAN (GPS aided geo augmented navigation)
GAGAN also known as GPS aided geo augmented navigation or GPS and geo-augmented navigation system is a regional GPS navigational system developed by India.It was launched for test by ISRO in assosciation with Raytheon and Airport Authority of India in 2011-12.It shows an accuracy of 1.5-meter in the horizontal,2.5-meter in the vertical.GAGAN is planned to get into operation by the year 2014. It will be able to help pilots to navigate in the Indian airspace by an accuracy of 3 m. This will be helpful for landing aircraft in tough weather and terrain like Leh in Jammu & Kashmir.One essential component of the GAGAN project is the study of the ionospheric behavior over the Indian region.GAGAN after its final operational phase completion, will be compatible with other SBAS systems such as the Wide Area Augmentation System (WAAS), the European Geostationary Navigation Overlay Service (EGNOS) and the Multi-functional Satellite Augmentation System (MSAS) and will provide seamless air navigation service across regional boundaries.The Indian government has stated that it intends to use the experience of creating the GAGAN system to enable the creation of an autonomous regional navigation system called the Indian Regional Navigational Satellite System (IRNSS) and that it might use the GSAT-4 satellite as a technology demonstration system phase of the proposed navigational system.Newly launched GSAT-10 satellite is a big asset for GAGAN.upcomming GSAT-9 satellite launching 2013 will also use this technology.GSAT-8P was the firdt Indian geostationary satellite to implement this in 2011.The Indian government has stated that it intends to use the experience of creating the GAGAN system to enable the creation of an autonomous regional navigation system called the Indian Regional Navigational Satellite System (IRNSS) and that it might use the GSAT-4 satellite as a technology demonstration system phase of the proposed navigational system.
GSAT 10  helps GAGAN in all  Indian Airports 
GPS aided Geo Augmented Navigation system (GAGAN), a satellite-based facility aimed at enhancing safety and efficiency of aircraft operations, would be installed in all airports in the country by June 2013.India would be the fourth country in the world to have a satellite-based navigation system after USA, Japan and European Consortium.