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9 Printed in India The Indian remote sensing satellite: a programme overview R R NAVALGUND and K KASTURIRANGAN* Space Applications Centre, Ahmedabad 380053, India *ISRO Satellite Centre, Bangalore 560058, India Abstract The Indian remote sensing satellite (IRS) programme, is a major step forward in the
3 Electro Optical Remote Sensing Sensors Presently, India is having the world’s largest constellation of Electro Optical (EO) remote sensing satellites in oper-ation (Fig 1) It provides space-based remote sensing data in a variety of spatial, spectral and temporal resolutions, meeting the needs of many applications of relevance to
4 1 2 1 Indian Remote Sensing Programme Starting with IRS-1A in 1988, ISRO has launched many operational remote sensing satellites Today, India has one of the largest constellations of remote sensing satellites in operation Currently, 13 operational satellites are in Sun-synchronous orbit viz
monitoring India also has its own launch vehicles — Polar Satellite Launch Vehicle (PSLV) and Geo-synchronous Satellite Launch Vehicle (GSLV) Indian space products — transponders, remote sensing data etc have already become a part of global network The United States has a long history in space and has achieved many successes Many a
innovative ways Today it is estimated that there are more than 4,800 satellites in operation, owned by over 60 countries Aparna: We hear about communication satellites, remote sensing satellites and many others How do they differ from each other? Ghosh: Satellites can be of many types and they are used for diverse purposes such as long-distance