"Cat's eye" effect for satellite laser ranging based on the optical system of remote sensing satellite SiCH-2 by Mingliang Long, Haifeng Zhang, HaiSheng Lin, Zhibo Wu, huarong Deng, Si Qin, Zhongping Zhang

“…At present, it has stopped working and is out of control, and it has been forecasted to become space debris by a two-line root (TLE) from the North American Air Defense Command (NORAD). Here, the "cat's eye" effect of the optical system is analyzed, and the satellite laser ranging (SLR) system at Shanghai Observatory is used to measure the echo intensity of satellite SiCH-2, which is very strong, and the ranging accuracy, which is better than 10 cm. …”
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