"Second series for China's data relay satellites, used in manned space missions including space station."
"25 C-band transponders covering China, Southeast Asia, Australia and islands in the South Pacific"
First in planned Xianyung LEO constellation for Internet of Things connectivity.
"45 C-band, Ku-band and Ka-band transponders, Apstar 6C?s wider coverage zone will stretch from Siberia and India in the north and west, to Australia and Hawaii in the south and east."
"38 Ku-band, 28 C-band transponders. "
Fourth in a series of data relay satellites for upcoming Chinese space station.
