Bhaskara-II was the second satellite in the Bhaskara Series launched by the Indian Space Research Organisation (ISRO) for Earth observation. Bhaskara-II was built in India and was launched in a Soviet Kosmos-3M rocket from Kapustin Yar on 20 November 1981. The main objectives of Bhaskara-II was similar to Bhaskara-I and was used to conduct earth observation experiments for applications related to hydrology, forestry, and geology using the two band television camera system operating in the 0.54 to 0.66 microns visible band and 0.75 to 0.85 micron near infra red band. It was also used to conduct ocean-surface studies using Satellite Microwave Radiometer (SAMIR) operating at 19.35, 22.235 & 31.4 GHz frequency bands.