IRNSSIndian Regional Navigational Satellite System
IRNSSInternet Resource Name Search Service
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The first IRNSS (Indian Regional Navigational Satellite System) satellite was launched by the PSLV on July 02, 2013.
Like IRNSS IA launched in July 2013 and1B sent up this April, the 1 C also carried navigation and ranging payloads, according to officials of the space department who also expect the IRNSS system with a 1500km range to make India self-reliant in aerial navigation, and disaster management besides surveillance from outer space.
India's equivalent of the GPS will be called the Indian Regional Navigational Satellite System or IRNSS, a cluster of seven satellites being developed by the Indian Space Research Organisation ( ISRO) -- IRNSS- 1A, IRNSS- 1B, IRNSS- 1C, IRNSS- 1D, IRNSS- 1E, IRNSS- 1F and IRNSS- 1G.
By launching the IRNSS, India will join China and Europe in the mission to create their own version of the American GPS.
In the framework of the IRNSS program, each satellite will have four SpectraTime Rubidium atomic clocks on board to reach a stability of less than 10 billionths of a second per day.
While four satellites would be sufficient to start operations of the IRNSS system, the remaining three would make it more accurate and efficient.
Though IRNSS is a seven-satellite system, it could be made operational with four satellites, according to officials of the Indian Space Research Organisation (ISRO).
IRNSS has been designed to provide accurate position information services to users in India as well as in regions extending up to 1,500 km from its boundary, which is its key service area.
The APX products use state-of-the-art low noise, multi-frequency Trimble Maxwell GNSS technology, and track all current satellite signals including GPS L1/L2/L2C/L5 and GLONASS L1/L2, QZSS, BeiDou, IRNSS and Galileo, supporting SBAS, RTK and Trimble CenterPoint RTX positioning modes.
PSLV-C39, like the previous six launches of IRNSS satellites, will use the 'XL' version of the PSLV equipped with six strap-ons, each carrying 12 tonnes of propellant.
ISRO recommends that device manufacturers include a small piece of hardware into their device which will allow it to receive S-Band signals from IRNSS satellites.
The IRNSS -1A, which is expected to be launched from a home-grown rocket, PSLV-C22 XL, will provide terrestrial, aerial and marine navigation services and will help in disaster and fleet management.