Article Computers Technology

Indian space scientists received signals of INSAT-4A
which was launched by Ariane-5 rocket from Kourou in French Guyana. The satellite signals have been acquired by Master Control Facility at Hassan in Karnataka.

It will be the first satellite to be launched in INSAT-4 series. It carries 12 high power Ku-band transponders to meet the requirement of direct-to-home (DTH) television services apart from 12C-band transponders to augment the INSAT capacity for communication and DTH services.
Weighing 3
80
kg at lift-off
INSAT-4A is the heaviest satellite of the Indian Space Agency till date.
INSAT will have about 225 active transponders in various frequency bands by 2007
which can cater to the demand up to 11 GBPS capacity with present days technology. Along with INSAT-4A
which is the 12th satellite for which ISRO has chosen the European launcher
Ariane Placed MSG-2 weather satellite for the European Organization EUmetsat into the orbit.

Tata-sky
the joint venture of the Tatas and Rupert Murdoch-owned STAR group
has booked all the Ku-band transponders on the Rs. 350 crore satellite
designed
built Indian Space Research Organization. ISRO paid an additional USD 50 million to Ariane Space
the European Commercial Launch Service provider as launch cost. ISRO has already contracted to Ariane space the launch of INSAT-4B
which will carry 12 Ku band and 12 12 C band transponders
would be orbited by India's own Geosynchronous Satellite Launch Vehicle (GSLV).

INSAT System
The Indian National Satellite (INSAT) system is a joint venture of Department of Space (DOS)
Department of Telecommunications (DOT)
India Meteorological Department (IMD)
All India Radio (AIR) and Doordarshan. INSAT Coordination Committee (ICC) was established in 1983. INSAT has become one of the largest domestic satellite systems in the Asia Pacific Region with eight satellites in operation INSAT 2E
INSAT 3E
INSAT 3B
INSAT 3C
KALAPANA-1
GAST-2 and EDUSAT.