Everything you need to know about India’s new Gagan Satellite Navigation System
India reached a milestone on Thursday when the Airports Authority of India (AAI) successfully conducted a trial for an LPV-based approach to land an Indigo aircraft using the latest indigenous satellite-based augmentation system (SBAS) called GAGAN at Kishangarh Airport in Rajasthan. India has become the first country in the Asia-Pacific region to achieve this.
GAGAN is India’s space-based augmented navigation system, which is jointly developed by AAI and ISRO for India and neighboring countries in the equatorial region. There are only four space-based augmentation systems available in the world, including GAGAN (India), WAAS (USA), EGNOS (Europe), and MSAS (Japan).
GAGAN stands for GPS-Aided Geo-Augmented Navigation. It is a satellite-based system intended to improve the accuracy and integrity of navigation systems. It includes the geostationary satellites GSAT-8, GSAT-10 and GSAT-15 (in progress), launched by ISRO and ground stations that provide GPS signals for better position accuracy. In addition, GAGAN also corrects GPS signal errors caused by ionospheric disturbances, timing and satellite orbit errors and gives information about the health of each satellite.
GAGAN is intended to provide the best possible navigation services in the Indian flight information region for India and neighboring equatorial countries. It also has the ability to expand to other flight information regions, according to a report from News9live.
Here are some uses of GAGAN: