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Jan 05, 2014 at 01:40pm IST

After two failures, ISRO to launch GSLV-D5 today

Bangalore: The Indian Space Research Organisation (ISRO) will launch the GSLV D5 with an indigenous cryogenic engine from the spaceport at Sriharikota, near Chennai on Sunday evening.

With two failures and an aborted launch, scientists are anxious about the fate of the mission. Its success is also necessary for India's ambitious space missions for the next 10 years.

"We are trying to improve GSLV's reliability through flights that are planned and development of GSLV MK 3. GSLV has to be there to launch Chandrayaan. We require two reliable successful missions of GSLV before we embark on it,"said ISRO Chairman K Radhakrishnan.

Be it the Chandrayaan-2, planned in five years, or a possible manned mission 10 years from now or just the launching of heavier satellites for remote sensing and communications, a lot is riding on the GSLV.

So far only two of the seven launches have been completely successful. In August 2013, the launch was aborted after a fuel leak was discovered at the last minute while the geosynchronous rocket launch failed twice in 2010.

"GSLV has been the challenge. More than GSLV, the Indian cryogenic engine has been part of the mission. We were planning to do this in 2013 but due to a leak we had to call that off," said Radhakrishnan.

If successful, it will also be a triumph for the engineers of the indigenous cryogenic engine.

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