These data update automatically every 30 minutes
Last update: April 21, 2026 10:34:36 UTC
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CU/ANWB North Barbuda Island 
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CU/BBGH Gun Hill, Barbados 
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CU/BCIP Isla Barro Colorado, Panama 
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CU/GRGR Grenville, Grenada 
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CU/GRTK Grand Turk, Turks and Caicos Islands 
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CU/GTBY Guantanamo Bay, Cuba 
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CU/MTDJ Mount Denham, Jamaica 
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CU/SDDR Presa de Sabenta, Dominican Republic 
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CU/TGUH Tegucigalpa, Honduras 
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GT/BDFB Brasilia, Distrito Federal, Brazil 
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GT/BOSA Boshof, South Africa 
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GT/CPUP Villa Florida, Paraguay 
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GT/DBIC Dimbokro, Ivory Coast 
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GT/LBTB Lobatse, Botswana 
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GT/LPAZ La Paz, Bolivia 
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GT/PLCA Paso Flores, Argentina 
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GT/VNDA Dry Valley, Vanda, Antarctica 
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IC/BJT Baijiatuan, Beijing, China 
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IC/ENH Enshi, Hubei Province, China 
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IC/HIA Hailar, Neimenggu Autonomous Region, China 
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IC/KMI Kunming, Yunnan Province, China 
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IC/LSA Tibet, China 
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IC/MDJ Mudanjiang, Heilongjiang Province, China 
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IC/QIZ Qiongzhong, Hainan Province, China 
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IC/SSE Shanghai, China 
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IC/WMQ Urumqi, Xinjiang Province, China 
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IC/XAN Xi'an, China 
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II/AAK Ala Archa, Kyrgyzstan 
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II/ABPO Ambohimpanompo, Madagascar 
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II/ALE Alert, NU, Canada 
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II/ARTI Arti, Russia 
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II/ASCN Butt Crater, Ascension Island 
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II/BFO Black Forest Observatory, Schiltach, Germany 
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II/BORG Borgarfjordur, Asbjarnarstadir, Iceland 
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II/BORK Burabay, Kazakhstan 
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II/CMLA Cha de Macela, Sao Miguel Island, Azores 
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II/COCO West Island, Cocos (Keeling) Islands 
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II/DGAR Diego Garcia, Chagos Islands, Indian Ocean 
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II/EFI Mount Kent, East Falkland Island 
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II/ERM Erimo, Hokkaido Island, Japan 
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II/ESK Eskdalemuir, Scotland, UK 
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II/FFC Flin Flon, Canada 
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II/HOPE Hope Point, South Georgia Island 
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II/JTS Las Juntas de Abangares, Costa Rica 
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II/JZAX Jizzax, Uzbekistan 
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II/KAPI Kappang, Sulawesi, Indonesia 
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II/KDAK Kodiak Island, Alaska, USA 
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II/KIV Kislovodsk, Russia 
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II/KURK Kurchatov, Kazakhstan 
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II/KWJN Gagan, Kwajalein Atoll, Marshall Islands 
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II/LVZ Lovozero, Russia 
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II/MBAR Mbarara, Uganda 
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II/MSEY Mahe, Seychelles 
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II/MSVF Monasavu, Fiji 
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II/NIL Nilore, Pakistan 
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II/NNA Nana, Peru 
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II/OBN Obninsk, Russia 
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II/PALK Pallekele, Sri Lanka 
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II/PFO Pinon Flat, California, USA 
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II/RAYN Ar Rayn, Saudi Arabia 
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II/RPN Rapanui, Easter Island, Chile 
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II/SACV Santiago Island, Cape Verde 
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II/SHEL Horse Pasture, St. Helena Island 
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II/SIMI Simiganj, Tajikistan 
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II/SUR Sutherland, South Africa 
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II/TAU Hobart, Tasmania, Australia 
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II/TLY Talaya, Russia 
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II/UOSS Univ. of Sharjah, Sharjah, United Arab Emirates 
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II/WRAB Tennant Creek, NT, Australia 
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II/XBFO Black Forest Observatory, Schiltach, Germany 
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II/XPFO Pinon Flat, California, USA 
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IU/ADK Adak, Aleutian Islands, Alaska 
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IU/AFI Afiamalu, Samoa 
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IU/ANMO Albuquerque, New Mexico, USA 
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IU/ANTO Ankara, Turkey 
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IU/BBSR Bermuda Institute of Ocean Sciences, St George's Bermuda 
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IU/BILL Bilibino, Russia 
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IU/CASY Casey, Antarctica 
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IU/CCM Cathedral Cave, Missouri, USA 
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IU/CHTO Chiang Mai, Thailand 
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IU/COLA College Outpost, Alaska, USA 
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IU/COR Corvallis, Oregon, USA 
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IU/CTAO Charters Towers, Australia 
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IU/DAV Davao, Philippines 
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IU/DWPF Disney Wilderness Preserve, Florida, USA 
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IU/FUNA Funafuti, Tuvalu 
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IU/FURI Mt. Furi, Ethiopia 
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IU/GNI Garni, Armenia 
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IU/GRFO Grafenberg, Germany 
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IU/GUMO Guam, Mariana Islands 
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IU/HKT Hockley1 Texas 
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IU/HNR Honiara, Solomon Islands 
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IU/HRV Adam Dziewonski Observatory (Oak Ridge), Massachusetts, USA 
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IU/INCN Inchon, Republic of Korea 
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IU/JOHN Johnston Island, USA 
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IU/KBS Ny-Alesund, Spitzbergen, Norway 
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IU/KEV Kevo, Finland 
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IU/KIEV Kiev, Ukraine 
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IU/KIP Kipapa, Hawaii, USA 
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IU/KMBO Kilima Mbogo, Kenya 
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IU/KNTN Kanton, Kiritibati 
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IU/KONO Kongsberg, Norway 
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IU/LCO Las Campanas Astronomical Observatory, Chile 
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IU/LSZ Lusaka, Zambia 
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IU/MA2 Magadan, Russia 
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IU/MACI Morro de la Arena, Canary Islands 
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IU/MAJO Matsushiro, Japan 
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IU/MAKZ Makanchi, Kazakhstan 
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IU/MBWA Marble Bar, Western Australia 
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IU/MIDW Midway Island, USA 
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IU/NWAO Narrogin, Australia 
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IU/OTAV Otavalo, Ecuador 
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IU/PAB San Pablo, Spain 
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IU/PAYG Puerto Ayora, Galapagos Islands 
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IU/PET Petropavlovsk, Russia 
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IU/PMG Port Moresby, New Guinea 
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IU/PMSA Palmer Station, Antarctica 
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IU/POHA Pohakuloa, Hawaii, USA 
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IU/PTCN Pitcairn Island, South Pacific 
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IU/QSPA South Pole Remote Earth Science Observatory (Quiet Zone) 
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IU/RAO Raoul, Kermadec Islands 
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IU/RAR Rarotonga, Cook Islands 
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IU/RCBR Riachuelo, Brazil 
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IU/RSSD Black Hills, South Dakota, USA 
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IU/SAML Samuel, Brazil 
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IU/SBA Scott Base, Antarctica 
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IU/SDV Santo Domingo, Venezuela 
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IU/SFJD Sondre Stromfjord, Greenland 
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IU/SJG San Juan, Puerto Rico 
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IU/SLBS Sierra la Laguna Baja California Sur, Mexico 
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IU/SNZO South Karori, New Zealand 
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IU/SSPA Standing Stone, Pennsylvania 
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IU/TARA Tarawa Island, Republic of Kiribati 
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IU/TATO Taipei, Taiwan 
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IU/TEIG Tepich, Yucatan, Mexico 
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IU/TIXI Tiksi, Russia 
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IU/TRIS Tristan da Cunha 
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IU/TRQA Tornquist, Argentina 
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IU/TSUM Tsumeb, Namibia 
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IU/TUC Tucson, Arizona 
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IU/ULN Ulaanbaatar, Mongolia 
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IU/WAKE Wake Island 
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IU/WCI Wyandotte Cave, Indiana, USA 
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IU/WVT Waverly, Tennessee, USA 
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IU/XMAS Kiritimati Island, Republic of Kiribati 
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IU/YAK Yakutsk, Russia 
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IU/YSS Yuzhno Sakhalinsk, Russia 