CHENNAI: India will launch a weather satellite next month with its heavy rocket, the geosynchronous satellite launch vehicle (GSLV-Mk II), Indian Space Research Organisation (Isro) Chairman A S Kiran Kumar said here on Friday.

The Isro will launch INSAT-3DR next month with its GSLVrocket, said Kiran Kumar at the Madras Institute of Technology Alumni Association meeting here.

He also said Isro is targeting to increase the number of its satellite and rocket launches from the current six-eight per year to 12-18 per year.

Vikram Sarabhai Space Centre (VSSC) Director K Sivan said that Isro will also be launchingScatSat — a weather monitoring and forecasting satellite — with polar satellite launch vehicle (PSLV).

Talking to reporters on the sidelines of the event, he said that the Indian satellite will be a co-passenger to an Algerian satellite.

"Both the satellites will be put into different orbits. So, the fourth stage/engine of the rocket will be switched off after ejecting ScatSat first. Then after a gap of around 30 minutes, the engine will be switched on and put the Algerian satellite into its intended orbit," Sivan said.

According to him, the year end is expected to see the launch of GSLV-Mk-III with communication satellite GSAT 19 weighing around 3.2 ton — the heaviest satellite to be lifted by an Indian rocket from the Sriharikota rocket port in Andhra Pradesh.

Sivan also said Isro will soon be testing its scramjet or air breathing engine for use future use to power Indian rockets.

The scramjet engine used only during the atmospheric phase of the rocket's flight will help in bringing down the launch cost by reducing the amount of oxidiser to be carried along with the fuel.

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