Q. ____ was launched from the space-port at Sriharikota. The four stages of the Polar Satellite Launch Vehicle (PSLV-XL) is being used for this from Sriharikota. It is essentially a remote-sensing satellite; it will be the Indian Space Research Organisation\'s (ISRO) first radar-imaging satellite. It uses synthetic aperture radars and it can take pictures of the earth at all times, through rain, sun, clouds, fog and cyclones. This is not only the first radar imaging satellite to be built by India but this is the heaviest remote-sensing satellite built by the ISRO. It is the heaviest satellite to be put in orbit by the PSLV weighing around 1858 kg. M. Annadurai is the Programme Director & N. Valarmathi is its Project Director.

1. RISAT
2. RISAT-I
3. RISAT-II
4. RISAT-TESLAR