More than 80 earthquakes, the strongest of which registered at a magnitude of 6.3, struck Taiwan’s east coast on the night of April 22, 2024. Although no casualties were immediately reported, the tremors rattled buildings already damaged by a magnitude 7.3 earthquake that struck the island on April 3, killing at least 14 people. Officials reported that some of the latest quakes were felt in the capital Taipei, in the north of the island.
The BeiDou Navigation Satellite System (BDS) 3rd Generation 北斗衛星導航系統第三代
中國北斗挑戰美國GPS 2024.04.19 (Chinese Subtitle)
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The BeiDou Navigation Satellite System (BDS) 北斗衛星導航系統 is a Chinese satellite navigation system. It consists of two separate satellite constellations – a limited test system that has been operating since 2000, and a full-scale global navigation system that is currently under construction.
The first BeiDou system, officially called the BeiDou Satellite Navigation Experimental System 北斗衛星導航試驗系統 and also known as BeiDou-1, consists of three satellites and offers limited coverage and applications. It has been offering navigation services, mainly for customers in China and neighboring regions, since 2000.
The second generation of the system, officially called the BeiDou Navigation Satellite System (BDS) and also known as COMPASS or BeiDou-2, will be a global satellite navigation system consisting of 35 satellites, and is under construction as of January 2015. It became operational in China in December 2011, with 10 satellites in use,[2] and began offering services to customers in the Asia-Pacific region in December 2012. It is planned to begin serving global customers upon its completion in 2020.
In-mid 2015, China started the build-up of the third generation BeiDou system (BDS-3) in the global coverage constellation. The first BDS-3 satellite was launched 30 September 2015. As of March 2016, 4 BDS-3 in-orbit validation satellites have been launched.
According to China daily. Fifteen years after the satellite system was launched, it is now generating $31.5 billion for major companies such as China Aerospace Science and Industry Corp, AutoNavi Holdings Ltd, and China North Industries Group Corp. (Source: Wikipedia)