(Continued from above... )
Fengyun-3 06 (FY-3-06) is a meterological satellite that will replace Fengyun-3 03, which is set to retire after 10 years of service. FY-3-06 carries 10 different onboard instruments, including a new ultraviolet hyperspectral imager for ozone monitoring.
With the latest TLE data, it is confirmed Yaogan-40 is the third gen (1st Gen= YG-9ABC/16ABC/17ABC/20ABC/25ABC; 2nd Gen: YG-31 Group 1 to 4) Naval Ocean Surveillance System using tree satellites operating in a triangular formation separated from each other by about 120 km. 9 and 31 are in similar orbits, of around 1,100 by 1,050 km inclined by 63.4° but 40 at 851 by 854, 63.4° inclined, giving it a global view instead of just SCS & TW strait. 40 sats also bigger than the others, as launched by CZ-7A instead of LM-4C. As for 9&31, I'am expecting SSF to launch a new serie of optical sats (maybe also with a serie of SAR sats) to trail each 40 triplet for target confirmation.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?
Depending on the location and power capacity of the jammer, it could interfere most easily with other nearby communications satellites, or those at lower orbits.