Insat 4B [ISRO]
INSAT 4A and INSAT 4B are dedicated to telecommunications, with 12 Ku band and 12 C-band transponders each. Their coverage zone is the Indian sub-continent.
Designed, built and integrated by ISRO, the INSAT 4A and INSAT 4B satellites will each weigh about 3,200 kg at liftoff.
INSAT-4 series is planned to have seven satellites, INSAT-4A through INSAT-4G with INSAT-4D as a spare. The transponder capacity of this series has been worked out after evaluating the requirement projected by different uses/user departments. It is planned that, by 2007, INSAT system will have about 250 transponders in various bands catering to a demand of up to 11 Giga Bits Per Second (GBPS) capacity.
|Type / Application:||Communication|
|Equipment:||12 Ku-band transponders, 12 C-band transponders|
|Configuration:||I-3K (I-3000) Bus|
|Propulsion:||440 Newton thrust liquid apogee motor|
|Power:||2 deployable solar arrays, batteries|
|Mass:||3081 kg (#4A); 3028 kg (#4B), 1335 kg (dry)|
|Insat 4A||2005-049A||21.12.2005||Ko ELA-3||Ariane-5GS||with MSG 2|
|Insat 4B||2007-007A||11.03.2007||Ko ELA-3||Ariane-5ECA||with Skynet 5A|