Excitement levels on high as ISRO set to launch India’s heaviest satellite GSLV Mark- III today
 Source : News Bharati English  Date : 05-Jun-2017

Sriharikota, June 5: We are ready, we are with you- the nation waits for its next historic launch where ISRO is set to launch its most powerful rocket ‘GSLV Mark-III’ that is capable of transporting a heavier 4-tonne communications satellite and described as a “game-changer” in the first of its kind space mission.

All the best, ISRO! ‘Commendable’ responsibility taken by ISRO will turn heads to look up to India in the field of ‘Space Science’. Aiming for a greater share of the multi-billion dollar global space market and becoming self-reliant, the Geosynchronous Satellite Launch Vehicle (GSLV) Mark-III will get launched today at 5:28 p.m.

“GSLV Mark-III is our next launch. We are ready. All the systems are in Sriharikota. The integration is currently going on,” ISRO Chairman AS Kiran Kumar said. A successful launch of this rocket will be yet another major step towards being self-reliant in the country’s space programme.  “As on today, ISRO has the capability to launch payloads of up to 2.2 tonnes and anything above that it had to tap Ariane or other launch facilities. This will be a significant move from us” Kumar added.

GSLV Mark-III will be India’s most powerful launch vehicle built to lift the heaviest Indian communications satellites to space. It can put satellites weighing 4 tonnes in space, double the weight that the current GSLV-Mark-II can lift. It will also enable ISRO to launch from India heavier communications spacecraft to geostationary orbits of 36,000 km. Because of the absence of a powerful launcher, ISRO currently launches satellites above 2 tonnes on European rockets for a big fee.

This is the first ever developmental flight for the 4-ton class vehicle, powered by the indigenous cryogenic upper stage of 20 tonnes thrust. In this test flight, the ISRO's most powerful ever rocket is set to carry the satellite of 3136 kg lift off mass into space, the heaviest ever to be launched from Indian soil.

Highlights of GSLV Mark-III:

It features an Indian cryogenic third stage and a higher payload capacity than the current GSLV.

The satellite would 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.

It would also employ advanced spacecraft technologies including bus subsystem experiments in the electrical propulsion system, indigenous Li-ion battery and indigenous bus bars for power distribution, among others.