Three spacecraft of the first group “Yaogan-40” were launched into a subpolar orbit with an inclination of 86°, which until now has hardly been used in China. In the late 1990s, American Iridium satellites were launched by Chinese carriers into orbits with an inclination of 86.4°, and recently, in 2021–2023, inclinations of 86.0° and 86.4° were used by China to launch experimental low-orbit communications satellites. It is worth clarifying that the orbit chosen for the YG-40 provides an almost global view. The main subject of interest now is the upcoming construction of this new constellation. Are they planned to work in a close group, like the Chinese NOSS family of systems, or will they be distributed along the orbit like the Yaogang-30?
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