India launches, successfully puts its first 2nd Gen navigation satellite into orbit – Times of India
The three staged GSLV rocket standing 51.7 metre tall and weighing 420 tonnes lifted off from a launch pad at Sriharikota at around 10.42 am.
What is the satellite all about
The 2,232 kg NVS-01 satellite, which is a part of Indian satellite navigation system NavIC or originally called Indian Regional Navigation Satellite System (IRNSS), was carried by Geosynchronous Satellite Launch Vehicle (GSLV). NavIC is an Indian ‘GPS’ – Global Positioning System.
The Indian satellite navigation system NavIC consists of nine satellites – seven in orbit and two as substitutes. According to a report by news agency IANS, the NVS series of satellites will sustain and augment the NavIC with enhanced features.
The NVS-01 with a mission life of 12 years is powered by two solar arrays capable of generating power up to 2.4kW and a lithium-ion battery during the eclipse. This series has payloads that operate on L1, L5 and S bands which means widening services.
According to Indian Space Research Organisation (ISRO), the L1 navigation band is popular for providing Position, Navigation and Timing (PNT) services for civilians and for interoperability with other Global Navigation Satellite System (GNSS) signals.
“In addition to the L1 band, we have a highly secured code for strategic signals in L5 and S bands,” the senior ISRO official remarked.
According to ISRO, NavIC is useful for various civil and strategic applications.
First generation satellites
Currently, there are eight first generation NavIC satellites in orbit. Citing a senior ISRO official, the news agency said that out of the eight NavIC satellites in orbit, four are functional for navigation services and others are for messaging services.
India has launched nine first generation NavIC satellites including the two standby satellites. The first standby satellite was lost in the sky as the heatshield of the Polar Satellite Launch Vehicle (PSLV) did not open.
The satellites also have three atomic clocks each. The atomic clocks are important to give accurate positional data.
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