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IRNSS-1G
Indian navigation satellite From Wikipedia, the free encyclopedia
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IRNSS-1G was the seventh and final[2] of the Indian Regional Navigation Satellite System (IRNSS) series of satellites after IRNSS-1A, IRNSS-1B, IRNSS-1C, IRNSS-1D, IRNSS-1E and IRNSS-1F. This system of satellites will provide navigational services to the Indian region. The satellite was launched successfully on 28 April 2016 at 07:20 UTC.[2]
IRNSS-1G along IRNSS-1A is being used only for NavIC's short message broadcast service and not for navigation.[3][4]
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Launch
The satellite was launched from the First Launch Pad (FLP) of Satish Dhawan Space Centre, Sriharikota on board PSLV-C33 XL on 28 April 2016 at 12:50 PM IST.[2][5] The countdown of the launch had begun 51:30 hours before at 9:20 AM IST on 25 April 2016.[6]
After the launch of IRNSS-1G the Indian government named the IRNSS system as NAVIC (Navigation with Indian Constellation).[7]
Specifications
Mission life: 12 years (planned).[6]
Lift-off mass:1,425 kilograms (3,142 lb)
Dry mass: 598 kilograms (1,318 lb).[8]
Payload: CDMA ranging payload in C band.[9][10] Navigation payload in L-5 and S band spectrums and Rubidium atomic clocks.[11]
Power: Two triple-junction solar panels to generate 1660W of energy and one Lithium-ion 90A-hr battery is used.[8]
Propulsion: MMH/MON3 based bipropellant system with 12×22N Attitude control thrusters and one 440N LAM.[10]
Orbit: Geosynchronous orbit at 129.5° East longitude with 5° inclination.[8][12]
Cost: Approximately ₹125 crore (US$15 million).[13]
Animation of IRNSS
Around the Earth
Around the Earth - Polar view
Earth fixed frame - Equatorial view, front
Earth fixed frame - Equatorial view, side
Earth fixed frame - Polar view
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See also
References
External links
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