Chennai, India: Indian Space Research Organisation (ISRO) is considering implementing Indian Regional Navigation Satellite System (IRNSS) to provide India and neighbouring countries with the Position Navigation and Timing (PNT) service, S.V. Kibe, Brahmprakash Professor in the ISRO Headquarters, Bangalore, said.
Moreover, Indian government had approved the project, which would be implemented in the next few years. Initially, the system would have seven satellites and then 11, he said, addressing the Space Summit at the 98th Indian Science Congress at Kattankulathur, Chennai, India. The Congress was hosted by SRM University. The University is developing one satellite and expected to launch it soon.
At present, two space navigation systems operate in the world — the US Global Positioning System (GPS) and the Russian Global Navigation Satellite System (GLONASS). The Galileo of Europe and China’s COMPASS (Beidou) are likely to start working in five to 10 years. In addition, he mentioned that India’s GPS-Aided Geo Augmented Navigation (GAGAN) project was being implemented for the benefit of civil aviation. It would especially be useful in aircraft landing.
“For landing, you need accuracy of less than six metres.” Despite being useful in position, GPS did not offer the guarantee of service, he said, and this shortcoming would be addressed in the GPS augmentation system like GAGAN.
Talking about the challenges in space observations, R.R. Navalgund, Director, ISRO Space Applications Centre, observed that very high resolution imagery provider system will be required to measure accurately greenhouse gases and constellation of satellites for disaster monitoring.
On space biology, P. Dayanandan, emeritus professor, said 14 nations of the International Space Exploration Coordination Group, including India, were hopeful that one day, human beings might live and work in other destinations within the solar system. The most challenging of all problems in space colonisation would be to provide a permanent life support system. He appealed to the government and the ISRO to establish a comprehensive space biology programme and give academic institutions greater encouragement.
Source: The Hindu