Extended Data Table 1 Parameters and performance of the acquisition, pointing and tracking (APT) systems

From: Microsatellite-based real-time quantum key distribution

  1. At the satellite, the primary beacon light is the 812 nm downlink laser, while the spare beacon light is the 532 nm beacon laser, which has a larger divergence and is mainly used for APT tests at the early stage of satellite launch in orbit. CMOS, complementary metal oxide semiconductor; PZT, piezoelectric ceramic transducer; RMS, root of mean square.
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