CARTOSAT-1 is the eleventh satellite in the Indian Remote Sensing satellite series. Weighing 1560 kg at lift-off, Cartosat-1 is intended for cartographic applications. Cartosat-1 carries two state-of-the-art Panchromatic cameras that take black-and-white stereoscopic pictures in the visible region of the electromagnetic spectrum. The imageries will have a spatial resolution of 2.5 metre. The cameras cover a swath of 30 km and they are mounted in such a way that near simultaneous imaging of the same area from two different angles is possible. This facilitates in generating three-dimensional maps. The cameras are steerable across the direction of satellite's movement to facilitate the imaging of an area more frequently. CARTOSAT-1 also carries a Solid State Recorder with a capacity of 120 Giga Bits to store the images taken by its cameras. These images can later be transmitted when the satellite comes within the visibility of a ground station. [ Source ISRO ]