ChinaPro
BeiDou
China's independent global positioning, navigation and timing constellation, combining open and restricted signals with a distinctive satellite short-message service.
Cosmos 2553 is a Russian military satellite in an unusual orbit near 2,000 km, publicly described as a technology demonstrator but linked by US officials to development of a nuclear-armed anti-satellite capability.
China's independent global positioning, navigation and timing constellation, combining open and restricted signals with a distinctive satellite short-message service.