ISRO to launch crucial GSLV mission on 19 Aug 2013

ISRO to launch crucial GSLV mission on 19 Aug 2013

After the failure of first engine in GSLV-D3 mission, which could not place the GSAT-4 satellite in the orbit, ISRO will embark on a crucial GSLV mission using its own cryogenic engine.

GSLV-D5 consists of eight tonne thrust engine and 12.5 tonnes of propellants. This would be the first GSLV mission for ISRO in three years after the twin failures in 2010.

The Indian Space Research Organisation (ISRO) will embark on a crucial GSLV mission using iis own cryogenic engine, when GSLV-D5. carrying the 1.980 kg advanced communication Sateliie GSAT-14. lifts offal 1650 his on August 19 from the SDSC Centre at Sriharikota. about 100 km from here.

ISRO sources told UNI on Friday that the 29-hour countdown for the launch that would take place from the Second Launch I*ad would commence at 1150 hrs on August 18. "The vehicle was completely integrated with the launch pad and the umbilicals connected." the sources said. "Pre-checks arc going on smoothly...everything is going on as per schedule." the sources said.

exuding confidence of tasting success this time. During the final countdown the rocket would be filled with propcllanis.

This would be the first GSLV mission for ISRO in three years after the twin failures in 2010.

The First stage of the three stage GSLV vehicle comprises S125 solid booster with four liquid (L40) strap-ons. The Second stage (GS2) was liquid engine and the third stage (GS3) was the cryo stage.

On the modifications carried out in the second engine in the wake of the failure of the first engine in GSLV-D3 mission, which could not place the GSAT-4 satellite in the orbit, the sources said some connected sub-systems in the fuel booster turbo pumps were modified. 

A her ihe flight lest of India's own cryo engine failed on April 15,20!0. the nexi GSLV-F06 mission (using Russian cryo stage) to place GSAT-5P satellite on Christmas Day the same year was aborted after the vehicle veered off from the trajectory due to failure of connectors.

This would be the eight GSLV flight for ISRO. In all. ISRO had tasted success in four GSLV launches of the total seven missions it had carried out so far. The first three missions GSLV-Dl (GSAT-1). GSLV-D2 (GSAT-2) and GSLV-FOI EDUSAT (GSAT-3) were successful. The next mission of GSLV-F02 carrying INSAT-4C failed but the GSLV-F04 that carried INSAT-4CR was successful, before the twin failures in 2010.