The Directorate General of Civil Aviation (DGCA), India has provisionally certified the ambitious Satellite Based Augmentation System (SBAS)...
GAGAN is a Satellite Based Augmentation System (SBAS) developed jointly by Indian Space Research Organisation (ISRO) and Airport Authority of India (AAI).
The certification will enable the aircraft fitted with SBAS equipment to use GAGAN signal in space for En-Route Navigation and Non-Precision Approaches without vertical guidance over Indian air space.
The main objectives of GAGAN are to provide Satellite-based Navigation services with accuracy and integrity required for civil aviation applications and to provide better Air Traffic Management over Indian Airspace. The system will be interoperable with other international SBAS systems and provide seamless navigation across regional boundaries.
India is the fourth country to offer safety of life, space based satellite navigation services to aviation sector in the world. The availability of GAGAN Signal in space will bridge the gap between European Unions EGNOS and Japans MSAS coverage areas, thereby offering seamless navigation to the aviation industry.
The GAGAN System is poised to APV1/1.5 level of certification in the near future to offer precision approach services over the Indian land mass. The GAGAN signal is being broadcast through two Geostationary Earth Orbit (GEO) satellites GSAT-8 and GSAT-10 covering whole Indian Flight Information Region (FIR) and beyond. An on-orbit spare GAGAN transponder will be flown on GSAT-15.
