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| GSLV MARK III Lift Off |
The first Geosynchronous Satellite Launch Vehicle Mark III rocket launches from India's Satish Dhawan Space Center Centre in Sriharikota on June 5, 2017. The mission launched the GSAT-19 communications satellite for India.
The GSLV Mark III is a heavy-lift rocket that weighs as much as 200 elephants, or five Boeing jumbo jets. It is powered by a liquid-fueled core stage, two strap-on solid rocket motors and a liquid-fueled upper stage.
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| GSLV MARK III |
GSLV Mk III is a three-stage heavy lift launch vehicle developed by ISRO. The vehicle has two solid strap-ons, a core liquid booster and a cryogenic upper stage.
GSLV Mk III is designed to carry 4 ton class of satellites into Geosynchronous Transfer Orbit (GTO) or about 10 tons to Low Earth Orbit (LEO), which is about twice the capability of GSLV Mk II.
Explanation of three stages
The payload for GSLV Mk III is accommodated in the composite payload fairing which has a diameter of 5 m.
C25 stage is newly developed, totally indigenous upper stage of GSLV Mk III. This is the terminal stage of the vehicle loaded with 28 tons of propellants (LOX & LH2). The stage has an overall diameter of 4 m and length of 13.5 m.The functioning duration of C25 is 643 seconds and this will facilitate the GSAT-19 carried on-board to reach the intended GTO.
The two strap-on motors of GSLV Mk III are located on either side of its core liquid booster. Designated as ‘S200’, each carries 205 tons of composite solid propellant and their ignition results in vehicle lift -off. S200s function for 128 seconds . These two engines continue to function after the separation of the strap-ons at about 140 seconds after lift -off.
L110 stage is the core stage of GSLV Mk III with twin engine configuration to generate a combined thrust of 1598 kN for 200 sec duration. Powered by two Vikas engines, the core stage of GSLV Mk III will be the powerhouse of the launch vehicle as it will propel the vehicle through the atmospheric phase of its flight.
"This was the first
orbital mission of GSLV MkIII which was mainly intended to evaluate the vehicle
performance including that of its fully indigenous cryogenic upper stage during
the flight," ISRO officials said in a statement.
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| Ready To Launch |
"It is a historic day," ISRO chairman A.S. Kiran Kumar said, India Today reported. "Both the GSLV MkIII and the GSAT-19 launch have been successful."
The rocket, weighing 640 tonnes and standing 43.43 metres tall, blasted off
from the second launch pad at India’s rocket port at Satish Dhawan Space Centre
in Sriharikota in Andhra Pradesh at 5:28pm. It carried a 3,136-kg GSAT-19
communications satellite – the heaviest to be lifted by an Indian rocket till
date – to an altitude of around 179km above the Earth after just over 16
minutes into the flight.
The GSAT-19, with a lifespan of
10 years, is a multi-beam satellite that will carry Ka and Ku-band payload
along with a Geostationary Radiation Spectrometer (GRASP) payload to monitor
and study the nature of the charged particles and influence of space radiation
on spacecraft and electronic components.
From this successful launch vehicle PM Mod congratulated the ISRO Team.
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