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Today ISRO is ready to launch GSLV-F08 carrying the GSAT6A communication satellite from Satish Dhawan Space Centre (SDSC) in Sriharikota at 4.56pm IST [29 March 2018]. This launch will add another feather in ISRO’s cap as it is on the technique of making home-made communication satellites. The GSAT-6A satellite will be put into orbit around 17 minutes after the lift-off.
The countdown began at 1.56 p.m. [IST] on Wednesday. During the countdown, the rocket is being fueled up and its systems are also being checked.
GSLV Mk II (F08) carrying GSAT-6A will take off from the second launch pad in Sriharikota. Today’s launch will mark its 12th flight 12th flight of Geosynchronous Satellite Launch Vehicle GSLV-F08 and sixth flight with the indigenous Cryogenic upper stage.
GSAT-6A Launch Time
GSLV-F08 carrying the GSAT-6A communication satellite from SDSC in Sriharikota at 4.56pm, March 29, 2018.
What are the benefits
A key feature of the satellite is providing mobile communication to India through multibeam coverage facility. The satellite will also provide a platform for developing technologies such as demonstration of 6m S-Band Unfurlable Antenna, handheld ground terminals and network management techniques that could be useful in satellite-based mobile communication applications.
Usually, the chamber pressure is 58 bar, but with the use of high-thrust Vikas engine, we will achieve 62 bar, which is a 6% increase in thrust that gives us 70 kgs of additional payload gain in this mission. Right now, we are going to use the high-thrust Vikas engine only in the second stage. Basically, we are validating it. For the Chandrayaan-2 mission, we will be using five such engines aiming for a payload gain of around 250 kgs
Technical specs, dimension & weight
The GSAT-6A is the twin of the GSAT-6, it is a high power S-band communication satellite built on I-2K satellite bus. According to the ISRO, two improvements induction of high thrust Vikas engine and electromechanical actuation system have been installed in the rocket’s second stage this time around.
Mission Lifespan: 10 years.
GSLV-F08, weighing 415.6 tonnes with a height of 49.1 meters comes with notable improvements like induction of High Thrust Vikas Engine, electromechanical actuation system in place of the electro-hydraulic actuation system.
The 2,140 kg high powered S-band communication satellite will join a series of other satellites launched earlier by India primarily for multi-media and mobile applications. The overall size of this satellite is 1.53m x 1.65m x 2.4m.
Cost of the satellite
The cost of this GSAT-6A satellite is Rs 270 crore. The GSAT-6A launch will be ISRO’s last launch for the financial year 2017-18.
GSAT-6A is the successor of GSAT-6, weighing 2132kg, was launched onboard GSLV Mk II D6 on August 27, 2015.
- Update: GSAT-6A Launch Successful. Read here