Chinese stations: geographical distribution of CDSN and CVN sites. Red spots indicate Chinese radio tracking stations and yellow spots VLBI stations. In China the CDSN includes two stations at Qingdao (QD) with 18 m antennas, one at Kashi(KS) with a 35 m antenna, and one at Jiamusi (JMS) with a 66 m antenna; in Argentina there is one station with an antenna diameter of 35 m. Each site is indicated by a red point on the map. The CVN includes four stations, one each at Urumqi (25 m antenna), Kunming (40 m antenna), Beijing (50 m antenna), and Shanghai (65 m antenna). Background: https://ngdc.noaa.gov/mgg/image/color_etopo1_ice_low.jpg