ISRO Successfully Injects GSAT-7A Into Orbit Aboard GSLV-F11

After a 26-hour countdown, the GSLV-F11, carrying the 2,250pound GSAT-7A, lifted off in 4:10pm IST from the second launch pad at Sriharikota, situated about 110km from Chennai. Around 19 minutes after lift-off, the GSLV-F11 injected GSAT-7A to the intended orbit. It’ll be set in its final geostationary orbit using the onboard propulsion systems.

ISRO scientists broke into cheers as the satellite was injected into orbit. As stated by the space agency officials, the advanced communication satellite would facilitate exclusive frequency flight communication for the IAF.

From the Mission Control Centre, ISRO Chairman K Sivan said Wednesday’s”powerful and safe” launching was the third one in 35 days and came on the heels of the”grand victory” of two missions in November. The GSLV-F11 successfully recovered the”innovative” communicating GSAT-7A to orbit, a elated Sivan said, describing the mission as”wonderful.”

This was the heaviest satellite lifted by the GSLV with indigenous cryogenic stage, he said. It came with many firsts, such as improved propellant loading and other characteristics, the ISRO chief said. The”cryogenic stage is burnt to depletion to get a super synchronous transfer orbit to enhance the life span of the satellite,” he explained.

The mission life of this GSAT-7A, built by ISRO, is eight years. It’ll provide communication in Ku-band over the Indian area. The communication satellite also came with new technology regarding the antenna to improve the functionality, Sivan explained. Its solar panels have been deployed and orbit raising manoeuvres will be done out of Thursday morning from Bengaluru, ” he said.

Wednesday’s assignment also gave the scientists a stress”as the weather god was not very conducive some 1 week ago,” Sivan noted. However, the meteorological staff here gave correctpredictions, he explained and congratulated the ISRO team members supporting the successful launch, the last of this calendar year.

“This is the final mission of this season. We are going to initiate the new year with a grand assignment shortly,” he said. Sivan said the new year would visit ISRO taking up challenging launches, including the Chandrayaan-2 moon assignment.

The GSLV-F11 is your ISRO’s fourth generation launch vehicle with three phases. Four liquid strap-ons plus a solid rocket engine in the core form the first stage of the launch vehicle, while thesecond stage is equipped with a high-thrust engine with liquid gas, ISRO said. The Cryogenic Upper Stage creates the third and final phase of the vehicle.

The seventh launch of 2018 from Sriharikota marks the69th mission of GSLV-F11 for ISRO. On November 14, ISRO’s GSLV-MkIII-D, which will be dubbed by the ISRO as the’Bahubali’ or”fat boy” of Indian rockets, injected into orbit a 3,423 kg communication satellite GSAT-29, the country’s heaviest to be put into orbit. India’s land monitoring satellite HysIS along with 30 additional co-passenger satellites from eight countries had been established onboard ISRO’s trusted workhorse Polar Satellite Launch Vehicle on November 29.


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