GSAT-6A communication satellite successfully put in orbit

Posted March 30, 2018

Isro's GSLV-F08 rocket launched the satellite, marking its 12th flight sixth flight with indigenous Cryogenic upper stage. About seventeen and a half minutes after lift-off, GSAT-6A was successfully placed in GTO. The countdown for the rocket launch began at 1:56 pm on Wednesday and is progressing well.

GSLV Mk II (F08) carrying GSAT-6A will take off from the second launch pad in Sriharikota. However, the flight incorporates some major improvements like the induction of High Trust Vikas Engine (HTVE) in the second stage will enhance its performance, induction of Electromechanical Actuation system instead of Electro Hydraulic Actuation system, which shall lead to improved reliability. Finally, the third stage is powered by an indigenously built cryogenic engine which gives a lot of power to the engine to reach its destined orbit.

The Indian space agency said that the GSAT-6A was similar to the GSAT-6.

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GSAT-6A will join its twin GSAT-6 launched in 2015 as India's two advanced S-band satellites.

The GSLV is a three stage/engine rocket.

The GSLV has often been dubbed the "Naughty boy" as only five of GSLV's 11 earlier launches have been successful. The core of first stage is fired with solid fuel while the four strap-on motors by liquid fuel.

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While GSAT-6A will complement GSAT-6, ISRO sources said the satellite would also provide services to the Indian Armed Forces.

It will be a technology demonstrator for high power S-band transmission from the satellite for supporting two-way communication, according to ISRO.

That launch included 28 satellites from foreign countries and the successful mission had put behind the rare setback ISRO suffered after the failure of the PSLV-C39 mission in August past year.

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India puts into orbit foreign satellites for a fee using its lighter rocket - the Polar Satellite Launch Vehicle (PSLV) as their weight is not much. The satellite will be released at a height of 254 km and will swing around the earth in a highly elliptical orbit, reaching the farthest distance (apogee) of 35,975 km.