It is learned from the official website of Beidou satellite navigation system that the 47th, 48th, 52nd and 53rd satellites of Beidou satellite navigation system have completed in orbit test, network access evaluation and other work. Recently, they were officially connected to the system to provide positioning, navigation and timing services.
It is understood that the four satellites belong to medium circular earth orbit satellites, which were developed by the China Academy of space technology under Aerospace Science and Technology Group Co., Ltd. the 47th and 48th satellites were launched on September 23, 2019, and the 52nd and 53rd satellites were launched in the form of "one arrow and two satellites" at Xichang Satellite Launch Center on December 16, 2019.
It home reported on the 23rd that China satellite navigation system management office said that China would organize the last two beidou-3 networking satellite launches in March and may 2020, so as to complete the global networking of Beidou satellite navigation system.
Source: it home