The ISRO is all set to launch its heavy lift rocket, GSLV-Mark III, capable of carrying humans into Geo synchronous orbit on Monday.
The GSLV MkIII-D1, in its first experimental flight, carrying 3,136-kilogram weighed GSAT-19 communication satellite, will take off from Satish Dhawan Space Center in Sriharikota at 17:28 hours (IST) today, June 5, 2017.
According to ISRO, the 25-and-half hour countdown for the launch of GSLV-Mk III-D1 commenced at 3.58 p.m. on Sunday, soon after the Mission Readiness Review Committee and Launch Authorization Board gave the clearance.
The vehicle is capable of lifting payloads of up to 4,000 kg into the Geosynchronous Transfer Orbit (GTO) and 10,000 kg into the Low Earth Orbit.
The GSLV Mk III D1 is a three-stage vehicle with indigenous cryogenic upper stage engine designed to carry heavier communication satellites into the Geosynchronous Transfer Orbit (GTO). Apart from the cryogenic engine, designated C25, carrying about 28 tonnes of propellants, it has two solid strap-on motors (S200) and a core liquid booster (L110).
On the significance of the launch for ISRO, Chairman AS Kiran Kumar said, "It is an important event as we are putting our communication satellite from our own soil". The 640-tonne GSLV Mk-III is the country’s heaviest but shortest rocket at 43 meters. It is India's rocket of the future as it will undoubtedly be human-rated to carry Indian astronauts likely to be named 'gaganauts or vyomanauts'.
You can watch the launch of GSLV MkIII-D1/GSAT-19 Live on Doordarshan and ISRO website from 16:55 hours (IST) onwards today i.e. 5ht June 2017. Catch Live here