The launch from the second launch pad of Satish Dhawan Space Centre, Shar, Sriharikota in Nellore district, was rescheduled by 40 minutes to 4.50 pm owing to a technical anomaly while filling the fuel in the cryogenic engine.
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This mission will for the first time use the indigenously developed cryogenic engine in an operational flight. The propellant carried by INSAT-3DR is mainly required to raise the satellite from the Geosynchronous Transfer Orbit (GTO) to its final Geostationary Orbit and to maintain the satellite in its orbital slot during its life, says ISRO.
The payloads in INSAT-3DR are Imager, Sounder, Data-Relay Transponder and Satellite Aided Search and Rescue Transponder. Satellite weighs 2011 kg and will remain on orbit for at least ten years. Previous GSLV vehicles (GSLV Mk I) have used Russian cryogenic engines. Earlier with similar configurations, GSLV flight successfully launched D5 and D6 missions in January 2014 and August 2015, putting GSAT-14 and GSAT-6 satellites in the intended GTOs “very accurately”. The liquid-fueled booster engines and first stage will generate up to 1.7 million pounds of thrust in the first two-and-a-half minutes of the flight, then separate simultaneously as the GSLV’s second stage engine lights at a velocity of more than 5,300 mph (2.4 kilometers per second). The maiden launch of the GSLV (GSLV-D1) was conducted on April 18, 2001.
The INSAT-3DR will assist in search and rescue operations of security agencies including all defence forces, the Coast Guard, and in shipping.
Indian Space Research Organization does not just takes pride in its glorious space-exploration history but has also served the country a continuous chain of missions to reach the zenith in science and technology.
India’s GSLV rocket carrying the INSAT-3DR sattelite soars into the sky on September 8, 2016. From there, the satellite will use its built-in propulsion systems to manoeuvre into its eventual geosynchronous orbit. Since two decades of its first launch, it has done 35 flights, hurling 86 satellites, including 45 foreign small and medium satellites. Once launched, the rocket’s engines burn and fall off in stages. It will produce images of the planet every 26 minutes, providing various parameters like outgoing long-wave radiation, quantitative precipitation estimation, sea surface temperature, snow cover, and cloud motion winds.
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“If you are able to build on top of what we’ve built PSLV commercialisation and make it more attractive, there is a possibility that the Indian industry can also gain in this global opportunity”, said Isro chairman A S Kiran Kumar, in a recent interview”. The satellite is an advanced technology commenced satellite on board with the GSLV-F05.
