The ZY-3 is the civil high-resolution optical stereoscopic mapping satellite independently developed by China. It is mainly used for 1 : 50. 000 scale topographic mapping. One of the distinguishing features of the ZY-3 is that the panchromatic triplet camera can obtain thousands of kilometers of continuous strip stereo data. https://www.hindigyanvishv.com/deal-time-Universal-Steering-Wheel-Control-Input-Interface-APUNISW2-hot-grab/