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Pujiang-1, also known as PJ-1, is a Chinese technology demonstration satellite [1] designed to promote the construction of smart cities in China. [4] PJ-1 also monitors weather, traffic and population density of a city. It is the first Chinese satellite that uses 3D printing for the titanium structure of its antenna. [5]
The following is a list of the largest satellite cities worldwide, with over 500,000 people. A satellite city is defined as subordinate to a central city in a business or infrastructure sense, and it may or may not have more population than the central city due to arbitrary municipal definitions. Excluded are transborder agglomerations.
The Hongtu-1 (Chinese: 宏图一号), known commonly by its English-language name PIESAT-1 and infrequently as Nuwa-1, is a Chinese commercial X-band interferometric synthetic aperture radar (InSAR) satellite constellation performing Earth observation missions in Sun-synchronous orbit.
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China builds 600-metre-long runway in the ... This satellite photo from Planet Labs PBC shows Triton Island in the South China Sea on Tuesday, Aug. 15, 2023 (AP) ... but regularly sends navy ships ...
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The third satellite, BeiDou-1C (a backup satellite), was put into orbit on 25 May 2003. [28] The successful launch of BeiDou-1C also meant the establishment of the BeiDou-1 navigation system. On 2 November 2006, China announced that from 2008 BeiDou would offer an open service with an accuracy of 10 metres, timing of 0.2 microseconds, and speed ...
China looks to be building a new radar system purported to have counter-stealth capabilities, analysts found. Satellite images appear to show a SIAR system on Triton Island in the South China Sea.