* Astronomy

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RE: GSAT-4 satellite

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India's First Cryogenic GSLV-D3 2010 Mission Fails

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India will soon launch an advanced communications satellite, put into orbit for the first time by a cryogenic engine developed by its own scientists.
Cryogenic engines are rocket motors designed for fuels that have to be held at very low temperatures to be liquid. They would otherwise be gas.
Officials say that only five countries in the world have this technology
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TAUVEX

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RE: GSAT-4 satellite

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GSAT-4 satellite to be launched soon

Chairman of Indian Space Research Organisation (ISRO), Dr K Radhakrishnan on Sunday said that the communication satellite GSAT-4, which will use the indigenously built cryogenic engine for the first time, will be launched very soon.
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For the first time, India's space scientists have developed electric propulsion technology that is expected to boost the life of geostationary satellites by upto five years.

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ISRO preparing for GSAT 4 launch in two months
While the preparations for launch of India's ocean monitoring satellite Oceansat 2 and six other nano satellites Sep 23 is on, the Indian Space Research Organisation (ISRO) is getting ready for the bigger launch slated in the next two months -- that of the communications satellite GSAT 4.

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India's premier space institute Indian Space Research Organisation (ISRO) is all set to launch its communication satellite GSAT-4 by August.
GSAT-4, an experimental communications satellite, would be able to connect around one lakh villages through internet.
Though mainly commissioned as an experimental satellite, GSAT-4 would be able to guide precisely all kinds of military and civil aircraft, informed scientists at ISRO.

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A top astrophysicist, spearheading an Indo-Israeli venture to launch a set of three telescopes aboard an indigenous satellite, has accused the Indian Space Research Organisation of delay in undertaking the mission, and expressed fears that relevance of data might be in jeopardy.
Tauvex is an Indo-Israeli ultraviolet imaging experiment that will image large parts of the sky in a particular wavelength region. The instrument consists of three equivalent 20-cm UV imaging telescopes with a choice of filters for each telescope.

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