The GSAT-7 is India’s first dedicated spacecraft for Defence applications. India’s maritime security will get a fresh impetus as the stage is now set for the launch of an exclusive home-built satellite for the Navy by European space consortium Arianespace from Kourou spaceport in French Guiana on Friday. Features- It has frequency bands that will help marine communications It has coverage over India landmass as well as surrounding seas. It’s important from security and surveillance points of view. Few other facts about it - GSAT-7 has a lift-off mass of 2,625 kg and is based on ISRO’s 2,500 kg satellite bus with some new technological elements, including the antennae. Its solar arrays generate 2,900 W of electrical power. The satellite’s A108 Ampere-Hour Lithium-Ion battery enables it to function during the eclipse period. The propulsion subsystem has a 440 Newton Liquid Apogee Motor (LAM) and thrusters. GSAT-7 is scheduled to be launched into a Geosynchronous Transfer Orbit (GTO) by Ariane-5 VA 215 during the 50-minute launch window starting from 2 a.m. on Friday. The launch cost for ISRO is around Rs. 470 crore, including insurance. ISRO can’t launch heavy satellites like GSAT-7 as its home-grown GSLV rocket, with indigenous cryogenic stage, is still in works and needs two successful flights before it’s declared operational. ( Source- The Hindu ) #redeyeiasbooster4u
Posted on: Fri, 30 Aug 2013 16:08:37 +0000
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