Tags: Artificialsatellite, Satellite.
INSAT-4B is an Indian communications satellite which forms part of the Indian National Satellite System. Launched in 2007 it is operated in geostationary orbit at a longitude of 93.48° east.Built by the Indian Space Research Organisation INSAT-4B is based upon the I-3K satellite bus. It had a mass at launch of 3028 kilograms (6676 lb) with a dry mass of 1335 kilograms (2943 lb) and was expected to operate for twelve years.