India took another step towards putting in place an alternative to the American GPS on Saturday, putting in orbit IRNSS-1D, the fourth of the seven satellites that would form a navigation satellite network.
Polar Satellite Launch Vehicle (PSLV-C27) lifted off from Satish Dhawan Space Centre, Sriharikota at 5.19pm and placed IRNSS (Indian Regional Navigation Satellite System)-1D weighing 1,425kg in a sub-geostationary orbit after a 20minutes flight.
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| IRNSS-1D is the fourth of the seven satellites constituting the space segment of the Indian Regional Navigation Satellite System. |
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| IRNSS-1A, 1B and 1C, the first three satellites of the constellation, were successfully launched by PSLV on July 02, 2013, April 04, 2014 and October 16, 2014 respectively. |
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| IRNSS-1D Satellite was injected to an elliptical orbit of 282.52 km X 20,644 km |
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| ISRO's Master Control Facility (at Hassan, Karnataka) took over the control of the satellite. In the coming days, four orbit manoeuvres will be conducted from Master Control Facility to position the satellite in the Geosynchronous Orbit at 111.75 deg East longitude with 30.5 deg inclination. |
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