Scientists excited about India’s own GPS
- Cauvery row: Can't release water till December, Karnataka tells SC
- India beat New Zealand by 197 runs in Kanpur Test, take 1-0 series lead
- ISRO successfully places SCATSAT-1, seven other satellites in orbit
- Shahabuddin bail case: Supreme Court adjourns hearing for Wednesday
- SC refuses urgent hearing on PIL seeking to declare Indus Waters Treaty unconstitutional
In the first step towards ending India's dependence on the US-controlled Global Positioning System (GPS), the first of seven satellites that will form the Indian Regional Navigation Satellite System, or IRNSS, is expected to be launched by December 2012, Indian Space Research Organisation (ISRO) scientists have said.
The IRNSS will be composed of seven geostationary satellites to watch over the country from 36,000 km above the earth's surface—two satellites each would be positioned in the north and south, with three in the middle, according to Pradeep V Khekale, a senior scientist with ISRO's Space Applications Centre (SAC) in Ahmedabad. Khekale is the programme manager for GAGAN, or GPS-aided Geo Augmented Navigation, a system that improves GPS accuracy for users in India, and is involved in developing the applications for IRNSS.
Currently, only the United States and Russia have functional independent satellite-based navigation systems, although China has recently launched two satellites for its own system. "The first satellite launch is expected within a year, and all seven satellites for IRNSS are expected to be launched within three years," said Chirag Dewan, a senior scientist at SAC.
The payloads for the IRNSS would weigh approximately 2,000 kilograms, and would need Geosynchronous Satellite Launch Vehicles, or GSLVs, to launch them. Khekale added that the two-frequency INRSS would be more accurate than the single frequency GPS.
- Loud jingoism and war talk erode India’s credibility
- Phenomenon of the non-academic VC is part of a wider crisis of the university
- PM Modi must recognise Pakistan’s gameplan, and respond at a time and place of India’s choosing
- The government has failed to provide the right incentives to farmers
- The advent of the Fadnavis government in Maharashtra Marathas’ political hegemony
- Across the aisle: In search of a Pakistan policy