Sriharikota, The Indian Space Research Organisation’s (ISRO) Geosynchronous Satellite Launch Vehicle (GSLV-F11) successfully launched the communication satellite GSAT-7A from the Satish Dhawan Space Centre (SDSC) here on Wednesday, ending the year 2018 on a highnote, having accomplished seven missions.
The GSLV-F11 lifted off from the Second Launch Pad at SDSC at 1610 hrs carrying the 2,250 kg GSAT-7A and about 19 minutes later, injected the satellite into a Geosynchronous Transfer Orbit (GTO) of 170.8 km x 39127 km which was very close to the intended orbit.
Soon after the separation of the satellite, ISRO’s Master Control Facility (MCF) at Hassan in Karnataka took over the command and control of GSAT-7A.The satellite’s health parameters were normal, said a release from ISRO after the launch.
In the next few days, scientists at MCF will perform various orbit raising manoeuvres, using GSAT-7A’s onboard propulsion system, to place the satellite in its final geostationary orbit.
In his post-launch address, ISRO Chairman Dr K Sivan said the team has achieved another spectacular milestone by launching GSAT-7A.
“In the last 35 days, ISRO has successfully launched three missions from the SDSC starting with GSLV MkIII-D2 on November 14, PSLV-C43 on November 29 and finally GSLV-F11 today’, he said.
The GSLV has successfully injected GSAT-7A into a super synchronous transfer orbit,” Dr Sivan said.He said GSAT-7A was the heaviest satellite being launched by GSLV with an indigenously developed cryogenic stage.“The cryogenic stage of this vehicle has been modified to increase the thrust rate’, he added.
Dr Sivan said GSAT-7A was an advanced communication satellite with a Gregorian Antenna and many other new technologies. ‘The testing and realisation of this satellite has been carried out meticulously by the ISRO team’.
‘We have signed off year 2018 on a high and positive note,” he added.