Fourth navigation satellite launch in March

CRYO12JAN_2275898fMADURAI: The fourth navigation satellite of the country is getting ready for launch in March, and it will be another step forward for India in evolving its own navigation satellite system and not depend on the Geographical Positioning System (GPS) service of the U.S.
Cryogenic propulsion systems on board PSLV-C27 rocket that will launch the satellite are being developed by scientists of the ISRO Propulsion Complex at Mahendragiri in Tirunelveli district.
S. Ingersol, group director of the complex, told.
“Totally, seven satellites are required to be launched to complete the configuration under the Indian Regional Navigation Satellite System (IRNSS) and already three had been launched.
Dr. Ingersol said launch of the remaining four satellites would be completed in one year and after that India’s dependency on the U.S. for GPS service would be significantly reduced. “This will trigger the much-needed development in geographic information systems.”
The Mahendragiri complex was developing the second and fourth liquid stages needed for the launch vehicle.
“Advance research by ISRO scientists has made India go for launching heavier satellites of three to four tonnes from our own soil,” he said.

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