India’s 3,400-kg communications satellite GSAT-10 is now ready to be shipped to the spaceport at Kourou in French Guiana for launch by European space consortium Arianespace in two months, according to the Indian Space Research Organisation Chairman, Dr K. Radhakrishnan.

“GSAT—10 with 30 transponders is ready to be shipped for launch. This launch is expected in the middle of September,” Dr Radhakrishnan, also Secretary in the Department of Space and Chairman of Space Commission, said on the sidelines of the 39th Scientific Assembly of the Committee on Space Research being held here.

Officials of Bangalore-headquartered space agency said it is a three-axis body stabilised geostationary satellite based on ISRO’s three-tonne structure to provide communication services/augment existing services. It carries 12 normal C band, six extended C band, 12 Ku-band transponders. The satellite will have a minimum operational life of 15 years.

GSLV flight test

Dr Radhakrishnan said ISRO hopes to conduct flight testing of its Geosynchronous Launch Vehicle (GSLV) with indigenous cryogenic engine and stage by January.

GSLV flight with indigenous cryogenic engine and stage conducted by ISRO in April 2010 and the one with Russian engine and stage in December that year had failed.

“We have done a lot of studies to find out the reason for the failure and taken corrective actions. We have conducted almost 40 tests on subsystems as well as on the engine. A couple of weeks ago, the flight engine was tested for 200 seconds.

That’s cleared for assembly as a flight stage,” he said.

Cryogenic engine

Cryogenic engine and flight stage should be ready by November. ISRO needs to conduct two more ground tests before committing the flight, which is expected by the year-end or January next year, Dr Radhakrishnan said.

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