India to launch its latest communication satellite today
August 27, 2015  08:58
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India's latest communication satellite GSAT-6 will be launched today.

The launch of Geo-synchronous Satellite Launch Vehicle D6 carrying GSAT-6 is scheduled at 1652 hours today from Satish Dhawan Space Centre at the spaceport of Sriharikota in Andhra Pradesh.

GSAT-6 is the 25th geostationary communication satellite of India built by ISRO and 12th in the GSAT series.

GSAT-6 provides communication through five spot beams in S-band and a national beam in C-band for strategic users, ISRO said.

The mission life of the satellite is nine years. 

The cuboid shaped GSAT-6 has a lift-off mass of 2117 kg. Of this, propellants weigh 1132 kg and the dry mass of the satellite is 985 kg, it added. 

One of the advanced features of GSAT-6 satellite is its S-Band Unfurlable Antenna of 6 m diameter. This is the largest satellite antenna realised by ISRO. 

The antenna is utilised for five spot beams over the Indian mainland. The spot beams exploit the frequency reuse scheme to increase frequency spectrum utilisation efficiency. 

ISRO said after satellite's injection into GTO (Geosynchronous Transfer Orbit) by GSLV-D6, ISRO's Master Control Facility (MCF) at Hassan will take control of GSAT-6 and performs the initial orbit raising manoeuvres by repeatedly firing the Liquid Apogee Motor (LAM) on board the satellite, finally placing it in the circular Geostationary Orbit.
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