Site was created (January 3rd)
Site was updated recently (January 9th)
“Kwajalein hosts one of four dedicated ground antennas that assist in the operation of the Global Positioning System (GPS) navigation system.”
https://www.cia.gov/the-world-factbook/countries/marshall-islands/
https://www.cia.gov/the-world-factbook/countries/marshall-islands/summaries