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Isro satellite dsappears, loses five years

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Ex Member
Ex Member


Dec 21st, 2007 at 6:01am  
Isro satellite disappears, loses five years of life


Insat-4CR recovered, but use of fuel to move it back to right orbit shortens life

CHENNAI: Here is one of the best-kept secrets of the Indian Space Research Organisation (Isro): Insat-4CR, launched by a geosynchronous satellite launch vehicle (GSLV-F04) on September 2, 2007, disappeared in space about a month later.

The satellite, which has 12 transponders meant for defence applications, direct-to-home (DTH) services and news gathering for television channels, was, however, spotted again with the help of the US-based National Aeronautics & Space Administration (Nasa) and brought back to a near geosynchronous orbit (36,000 km above earth). This took 15 days of manoeuvres, which consumed fuel normally meant for five years. This means the life of the satellite has come down from 10 years to five years.
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