India's spy satellite RISAT-1 to be launched in April
A wholly Indian-built spy/surveillance satellite, Radar Imaging Satellite (Risat-1) that can see through clouds and fog and has very high-resolution imaging is slated for launch in April, a senior official of the Indian space agency has said. An official of the Indian Space Research Organisation (ISRO) said thorough tests were being done on the Risat-1. "The Risat-1 is put to thermal vacuum test (a test to check the satellite's functioning in space environment). It is a complex microwave satellite being built for the first time in India. The satellite is expected to be launched in April," the senior official told, not wishing to be named because of the organisational rules. In earlier satellites, one major component, the synthetic aperture radar (SAR) was imported, but in Risat-1 that has also been developed in India. He said Risat-1 is the first such satellite being built by India and is a bit complex compared to other remote sensing/earth observation satellites ...