The detector subsystem of the Optical Wide-field Patrol (OWL) network efficiently acquires the position and time information of moving objects such as artificial satellites through its chopper system. which consists of 4 blades in front of the CCD camera. Using this system. it is possible to get more position data with the same exposure time by changing the streaks of the moving objec... https://herbsdailyes.shop/product-category/bags-shopping-bags/