IGS Stations
 421 stations and 370 active stations as of 15 Mar 2009.
 Designates a site newer than 6 months to the IGS.
 Designates a Reference Frame station. Machine-readable list is available.
 Designates a site offering hourly data. Machine-readable list is available.
 Designates a site offering IGLOS-PP (GPS/GLONASS) data. Machine-readable list is available.
View a list of former IGS sites.
View a list of proposed sites.
Click on any 4-character id for further information.
Dormant sites are lined through
id City Location lon (E) lat (N) ht (m) Agency Clock
abpo Antananarivo Madagascar 47.2292 -19.0183 1552.9923 JPL INTERNAL
ade1 Salisbury Australia 138.6473 -34.7290 38.2000 NGA Cesium / Rcvr 1
ade2 Salisbury Australia 138.6473 -34.7290 38.2000 NGA Cesium / Rcvr 2
adis Addis Ababa ETHIOPIA 38.7663 9.0351 2439.1540 BKG
aira Aira Japan 130.5996 31.8241 314.6400 GSI CESIUM
ajac Ajaccio France 8.7626 41.9275 99.0000 IGN INTERNAL
albh Victoria Canada 236.5126 48.3898 32.0000 GSC Internal
algo ALGONQUIN PARK CANADA 281.9286 45.9588 202.0000 NRCan / GSD RUBIDIUM
alic Alice Springs Australia 133.8855 -23.6701 603.2650 GA QUARTZ/INTERNAL
alrt Alert (Ellesmere Island) Canada 297.6595 82.4943 78.1100 NRCan/GSD Internal
amc2 Colorado Springs U.S.A. 255.4754 38.8031 1912.4898 USNO H-MASER
ammn Amman Jordan 35.8800 32.0300 1055.8300 RJGC
ankr Ankara Turkey 32.7586 39.8875 974.8000 BKG and GCM INTERNAL
antc Los Angeles Chile 288.4679 -37.3387 745.4000 G2
areq Arequipa Peru 288.5072 -16.4655 2488.9226 JPL INTERNAL
artu Arti Russian Federation 58.5605 56.4298 247.5110 RDAAC-IRIS INTERNAL
asc1 Ascension Island Ascension Island 345.5879 -7.9512 105.0000 JPL INTERNAL
aspa Pago Pago U.S.A. 189.2776 -14.3261 53.6620 NOAA-NGS INTERNAL
auck Whangaparaoa Peninsula New Zealand 174.8344 -36.6028 132.0000 GNS INTERNAL
azu1 Azusa USA 242.1000 34.1300 144.7500 UNAVCO INTERNAL
baie BAIE COMEAU CANADA 291.7367 49.1868 27.4800 NRCan/GFZ INTERNAL
bake BAKER LAKE CANADA 263.9977 64.3178 4.4100 NRCan/GFZ INTERNAL
bako Cibinong Indonesia 106.8500 -6.4900 158.1800 BAKOSURTANAL
bamf Bamfield Canada 234.8649 48.8353 11.1000 GSC INTERNAL
ban2 Bangalore India 77.5116 13.0343 831.9000 GFZ EXTERNAL RUBIDIUM
barh Bar Harbor USA 291.7783 44.3950 7.4000 NOAA-NGS INTERNAL
bdos Bridgetown Barbados 300.3909 13.0880 -38.6370 NOAA-NGS INTERNAL
bhr1 Manama Bahrain 50.6081 26.2091 -13.9000 NGA Cesium /Rcvr1
bhr2 Manama Bahrain 50.6081 26.2091 -13.9000 NGA Cesium /Rcvr2
bili Bilibino Russian Federation 166.4380 68.0761 456.2380 RDAAC-IRIS INTERNAL
bill Temecula USA 242.9400 33.5800 470.0500 UNAVCO INTERNAL
bjfs Fangshan China 115.8925 39.6086 87.4130 NGCC
blyt Blythe USA 245.2900 33.6100 85.9000 USGS INTERNAL
bogi Borowa Gora Poland 21.0352 52.4750 139.9000 IGiK INTERNAL
bogt Bogota Colombia 285.9191 4.6401 2576.7782 JPL INTERNAL
bor1 Borowiec Poland 17.0668 52.1002 124.0000 SRC PAS INTERNAL
bran Burbank USA 241.7200 34.1800 246.2500 USGS INTERNAL
braz Brasilia Brazil 312.1222 -15.9474 1106.0413 DGFI INTERNAL
brew Brewster USA 240.3174 48.1315 238.6273 JPL H-MASER
brft Eusebio Brazil 321.5745 -3.8774 21.7000 NOAA-NGS EXTERNAL H-MASER
brmu Bermuda UK 295.3037 32.3704 -11.6120 NOAA-NGS INTERNAL
brst Brest France 355.5034 48.3805 65.8000 IGN INTERNAL
brus Brussels Belgium 4.3592 50.7978 149.7000 ROB H-MASER CH1-75
bucu Bucuresti Romania 26.1257 44.4639 143.2000 BKG INTERNAL
bue1 San Martin Argentina 301.4807 -34.5737 48.8000 NGA Cesium / Rcvr1
bue2 San Martin Argentina 301.4807 -34.5737 48.8000 NGA Cesium /Rcvr2
bzrg Bolzano - Bozen Italy 11.3368 46.4990 328.8000 GpsBZ INTERNAL
cagl Cagliari Italy 8.9728 39.1359 238.4000 ASI INTERNAL
cags Gatineau Canada 284.1927 45.5850 235.0000 NRCan/GSD INTERNAL
cagz Capoterra Italy 8.9728 39.1359 238.0000 DISIG-Cagliari EXTERNAL
cas1 Casey Antarctica 110.5197 -66.2834 22.5500 GA QUARTZ/INTERNAL
casa Mammoth Lakes USA 241.1034 37.6446 2390.4416 LVO INTERNAL
ccjm Ogasawara Japan 142.1846 27.0956 208.8300 GSI CESIUM
cedu Ceduna Australia 133.8098 -31.8667 144.8021 GA H-MASER
cfag Caucete Argentina 291.7674 -31.6022 703.0000 CERI INTERNAL
chan CHANGCHUN CHINA 125.4433 43.7905 268.3000 CHO INTERNAL
chat Waitangi New Zealand 183.4342 -43.9558 58.0000 GNS INTERNAL
chil San Gabriel Mountains USA 241.9700 34.3300 1567.5200 USGS INTERNAL
chpi Cachoeira Paulista Brazil 315.0148 -22.6871 617.4176 JPL INTERNAL
chti Wharekauri New Zealand 183.3829 -43.7355 75.7000 GNS INTERNAL
chum Chumysh Kazakhstan 74.7511 42.9985 716.3321 JPL INTERNAL
chur CHURCHILL CANADA 265.9113 58.7591 -18.9000 NRCan/GSD RUBIDIUM
chwk Chilliwack Canada 237.9916 49.1566 170.0000 GSC clock steering
cic1 Ensenada Mexico 243.3342 31.8707 64.3245 JPL INTERNAL
cit1 Pasadena USA 241.8700 34.1400 215.3600 USGS INTERNAL
clar Claremont USA 242.2900 34.1100 373.6400 USGS INTERNAL
cmp9 Sylmar USA 241.5900 34.3500 1138.0200 USGS INTERNAL
cnmr Saipan USA 145.7431 15.2297 64.3990 NOAA-NGS INTERNAL
coco Cocos (Keeling) Island Australia 96.8339 -12.1883 -35.2212 GA RUBIDIUM
cont Concepcion Chile 286.9750 -36.8428 200.0270 BKG EXTERNAL H-MASER
conz Concepcion Chile 286.9745 -36.8438 181.2000 BKG INTERNAL
copo Copiapo Chile 289.6618 -27.3845 479.2000 G2
cord Cordoba Argentina 295.5300 -31.5284 747.0654 JPL INTERNAL
coso Coso Junction USA 242.1911 35.9823 1455.1622 USGS INTERNAL
coyq Coyhaique Chile 288.1079 -45.5143 476.0000 G2 INTERNAL
crao Simeiz Ukraine 33.9906 44.4129 387.5545 UNAVCO INTERNAL
crfp Yucaipa USA 242.9000 34.0400 688.8300 USGS INTERNAL
cro1 Christiansted U.S. Virgin Islands (USA) 295.4157 17.7569 -31.9558 JPL H-MASER
csn1 Northridge USA 241.4800 34.2500 261.4400 USGS INTERNAL
cusv Patumwan Thailand 100.5339 13.7359 76.0600 DUT INTERNAL
daej Daejeon Korea 127.3745 36.3994 117.0370 KASI CESIUM
daka Dakar Senegal 342.5352 14.6850 63.1000 GFZ INTERNAL
darr Darwin Australia 131.1327 -12.8438 125.1970 GA QUARTZ/INTERNAL
darw Darwin Australia 131.1327 -12.8438 125.2000 GA RUBIDIUM
dav1 Davis Antarctica 77.9726 -68.5773 44.5000 GA QUARTZ/INTERNAL
dgar Diego Garcia Island U.K. Territory 72.3702 -7.2697 -64.7455 JPL INTERNAL
dhlg Durmid Hill USA 244.2100 33.3900 -83.0500 SIO INTERNAL
dlft Delft Netherlands 4.3876 51.9860 74.3000 TUD/DEOS CESIUM
drag Metzoki dragot Israel 35.3924 31.5929 120.3000 GSM INTERNAL
drao Penticton Canada 240.3750 49.3226 542.0000 GSC RUBIDIUM
dubo Lac du Bonnet Canada 264.1338 50.2588 251.0000 GSC INTERNAL
dubr Dubrovnik Croatia 18.1104 42.6500 454.3000 CGI INTERNAL
dum1 Antarctic base of "Dumont d'Urville" Antarctica 140.0019 -66.6651 -1.4000 ENS/CNRS
dund Dunedin New Zealand 170.5972 -45.8837 389.0000 GNS INTERNAL
dyr2 Diyarbakir Turkey 40.2764 37.9157 500.0000 UNV-JPL-GCM INTERNAL
ebre Roquetes Spain 0.4924 40.8209 107.9000 ICC INTERNAL
eil1 Fairbanks USA 212.8870 64.6879 176.6000 NGA Cesium /Rcvr 1
eil2 Fairbanks USA 212.8870 64.6879 176.6000 NGA Cesium /Rcvr 2
eprt Eastport USA 293.0079 44.9087 30.9880 NOAA-NGS INTERNAL
escu Escuminac Canada 295.2013 47.0734 -16.0200 NRCan/GSD INTERNAL
esti Esteli Nicaragua 273.6379 13.0995 852.6700 INETER
faa1 Faaa Tahiti, French Polynesia 210.3857 -17.5553 12.3500 ESOC INTERNAL
fair Fairbanks USA 212.5008 64.9780 319.1771 JPL INTERNAL
fale Faleolo Samoa 188.0005 -13.8322 48.0000 GNS INTERNAL
falk Port Stanley Falkland Islands 302.1259 -51.6937 50.8407 JPL INTERNAL
ffmj Frankfurt / Main Germany 8.6650 50.0906 178.2000 BKG INTERNAL
flin CFS Flin Flon Canada 258.0220 54.7256 320.0000 GSC INTERNAL
flrs Santa Cruz das Flores Portugal 328.8736 39.4538 79.9000 IGP INTERNAL
func Funchal Portugal 343.0924 32.6479 78.5000 IGP INTERNAL
ganp Ganovce Slovakia 20.3229 49.0347 745.2000 GKU INTERNAL
geno Genova Italy 8.9211 44.4194 137.0000 ASI INTERNAL
glps Puerto Ayora Ecuador 269.6963 -0.7430 1.7946 JPL INTERNAL
glsv Kiev Ukraine 30.4967 50.3642 226.8000 MAO INTERNAL
gmas Maspalomas Spain 344.5324 27.7648 195.4000 JAXA CESIUM
gmsd Nakatane town Japan 131.0156 30.5564 142.3645 JAXA CESIUM
gode Greenbelt USA 283.1732 39.0217 14.5046 JPL H-MASER
godz Greenbelt USA 283.1732 39.0217 14.5090 JPL H-Maser
gol2 Goldstone USA 243.1107 35.4252 986.6779 JPL H-MASER
gold Goldstone USA 243.1107 35.4252 986.6779 JPL INTERNAL
gope Ondrejov Czech Republic 14.7856 49.9137 592.6000 RIGTC GOP INTERNAL
goug Gough Island dependent territory of the U.K. 350.1333 -40.3488 81.3000 AWI INTERNAL
gras Caussols France 6.9206 43.7547 1320.3000 CNES INTERNAL
graz Graz Austria 15.4935 47.0671 538.3000 BEV INTERNAL
guam Dededo Guam 144.8683 13.5893 201.9220 JPL INTERNAL
guao URUMQI CHINA 87.1773 43.4711 2049.2000 UAO INTERNAL
guat Guatemala City Guatemala 269.4798 14.5904 1519.8680 IGN-GT
guug Mangilao USA 144.8027 13.4332 134.7100 NOAA-NGS INTERNAL
haly Halat Ammar Saudi Arabia 36.0999 29.1389 861.6765 MIT INTERNAL
harb Pretoria Republic of South Africa 27.7075 -25.8869 1555.0000 CNES EXTERNAL CESIUM
harv Vandenberg AFB USA 239.3179 34.4694 14.9941 NASA/JPL INTERNAL
hers Hailsham England 0.3362 50.8673 76.4990 NSGF GPS (and Rubidium) moderat
hert Hailsham England 0.3344 50.8675 83.3000 NSGF INTERNAL
hilo Hilo USA 204.9473 19.7192 29.0000 PGF INTERNAL
hlfx HALIFAX CANADA 296.3887 44.6835 3.1200 NRCan/GFZ RUBIDIUM
hnlc Honolulu USA 202.1355 21.3033 22.0000 PGPSF INTERNAL
hnpt Cambridge USA 283.8690 38.5880 -27.4000 NOAA-NGS INTERNAL
hob2 Hobart Australia 147.4387 -42.8047 41.1260 GA H-MASER
hofn Hoefn Iceland 344.8132 64.2673 82.5000 BKG INTERNAL
holb Holberg Canada 231.8650 50.6404 560.0000 GSC INTERNAL RECEIVER CLOCK
holm Ulukhaktuk, formerly Holman (Victoria Island) Canada 242.2391 70.7364 39.5000 NRCan/GSD Internal
holp Hollydale USA 241.8318 33.9245 -6.7077 USGS INTERNAL
hrao Krugersdorp South Africa 27.6870 -25.8901 1414.3000 HRAO H-MASER
hrm1 Hermitage United Kingdom 358.7161 51.4537 163.1000 NGA Cesium / Rcvr 1
hrm2 Hermitage United Kingdom 358.7161 51.4537 163.1000 NGA Cesium / Rcvr 2
hueg Huegelheim Germany 7.5962 47.8339 278.4000 BKG INTERNAL
hyde Hyderabad (located in central part of India) INDIA 78.5509 17.4173 441.6800 NGRI,HYDERABAD
ieng Torino Italy 7.6394 45.0151 316.5000 I.N.RI.M. EXTERNAL H-MASER
iisc Bangalore India 77.5704 13.0212 843.7145 JPL INTERNAL
ineg Aguascalientes Mexico 257.7158 21.8562 1888.5680 INEGI
invk Inuvik Canada 226.4730 68.3062 46.3600 NRCan/GSD INTERNAL
iqqe Iquique Chile 289.8683 -20.2735 38.9000 G2
irkj Irkutsk RUSSIA 104.3162 52.2190 502.1000 VNIIFTRI EXTERNAL H-MASER
irkm Irkutsk Russia 104.3162 52.2190 502.3170 RDAAC-IMVP-JPL-LDEO H-MASER
irkt Irkutsk Russia 104.3162 52.2190 503.3816 DEOS-DUT H-MASER
ispa Easter Island Chile 250.6556 -27.1250 112.4948 JPL INTERNAL
ista Istanbul Turkey 29.0193 41.1044 147.2000 BKG INTERNAL
jab1 Jabiru Australia 132.8939 -12.6588 82.1140 GA QUARTZ/INTERNAL
joz2 Jozefoslaw Poland 21.0323 52.0978 152.5000 WUT INTERNAL
joze JOZEFOSLAW near WARSAW POLAND 21.0332 52.0863 141.0000 WUT RUBIDIUM
jplm Pasadena USA 241.8268 34.2048 423.9843 JPL RUBIDIUM
karr Karratha Australia 117.0972 -20.9814 109.2463 GA QUARTZ/INTERNAL
kely Kangerlussuaq Greenland 309.0552 66.9874 229.8064 JPL INTERNAL
kerg Port aux Francais Kerguelen Islands 70.2555 -49.3515 74.0583 CNES EXTERNAL CESIUM
kgni KOGANEI JAPAN 139.4881 35.7103 123.5000 RAAG-KSRC EXTERNAL H-MASER
khaj Khabarovsk RUSSIA 135.0462 48.5215 130.6000 VNIIFTRI EXTERNAL H-MASER
khar Kharkiv Ukraine 36.2390 50.0051 201.0000 MAO INTERNAL
kir0 Kiruna Sweden 21.0602 67.8776 497.9000 LMV INTERNAL
kiru Kiruna Sweden 20.9684 67.8573 391.1000 ESOC CESIUM
kit3 Kitab Uzbekistan 66.8800 39.1400 643.0000 GFZ Potsdam INTERNAL
kokb Kokee Park, Waimea, USA 200.3351 22.1263 1167.5216 JPL H-MASER
kosg Kootwijk Netherlands 5.8096 52.1784 97.9000 DUT INTERNAL
kouc Koumac New Caledonia 164.2873 -20.5587 84.0000 DITTT INTERNAL
kour Kourou French Guyana 307.1940 5.2522 -25.5700 ESOC CESIUM
ksmv KASHIMA JAPAN 140.6577 35.9554 57.9000 RAAG-KSRC EXTERNAL H-MASER
kstu Krasnoyarsk Russia 92.7900 55.9900 210.0000 GFZ INTERNAL
kunm Kunming China 102.7972 25.0295 1986.2000 JPL INTERNAL
kuuj KUUJJUARAPIK CANADA 282.2546 55.2784 -0.4800 NRCan/GFZ INTERNAL
kwj1 Kwajalein Atoll Marshall Islands 167.7302 8.7222 38.0000 JPL INTERNAL
lae1 Lae Papua New Guinea 146.9932 -6.6737 140.3500 RSES
lama Olsztyn Poland 20.6699 53.8924 187.0000 UWM_OLSZTYN INTERNAL
lbch Long Beach USA 241.8000 33.7900 -27.5600 USGS INTERNAL
leep Hollywood USA 241.6782 34.1346 485.0517 USGS INTERNAL
leij Leipzig Germany 12.3741 51.3540 178.4000 BKG INTERNAL
lhas LHASA China 91.1040 29.6573 3622.0000 BKG INTERNAL
lhaz Lhasa China 91.1040 29.6573 3622.0000 BKG INTERNAL
long Irwindale USA 242.0000 34.1100 74.2900 USGS INTERNAL
lpal Roque de los Muchachos Spain 342.1061 28.7639 2207.0000 IGN-E INTERNAL
lpgs La Plata Argentina 302.0677 -34.9067 29.9000 GFZ EXTERNAL Rubidium
lroc La Rochelle France 358.7807 46.1589 57.9000 CLDG INTERNAL
mac1 MacQuarie Island, Sub-Antarctic Southern Ocean 158.9358 -54.4995 -6.6900 GA QUARTZ/INTERNAL
mad2 Robledo Spain 355.7503 40.4292 829.5000 JPL H-MASER
madr Robledo Spain 355.7503 40.4292 829.5000 JPL INTERNAL
mag0 Magadan Russian Federation 150.7700 59.5758 361.9266 RDAAC-IRIS INTERNAL
mal2 Malindi Kenya 40.1940 -2.9960 -20.4000 ESOC
mald Male Airport Republic of Maldives 73.5263 4.1887 -92.0000 PGPSF INTERNAL
mana Managua Nicaragua 273.7513 12.1491 170.0000 INETER
mar6 Maartsbo Sweden 17.2585 60.5951 75.4000 LMV RUBIDIUM
mars Marseille France 5.3538 43.2788 61.8000 IGN INTERNAL
mas1 Maspalomas Spain 344.3667 27.7637 197.3000 ESOC CESIUM
mat1 MATERA ITALY 16.7045 40.6491 534.5000 ASI EXTERNAL H-MASER
mate Matera Italy 16.7045 40.6491 535.6000 ASI EXTERNAL H-MASER
maui Haleakala, Maui USA 203.7430 20.7067 3062.0000 PGPSF INTERNAL
maw1 Mawson Antarctica 62.8707 -67.6048 59.1840 GA QUARTZ/INTERNAL
mbar Mbarara Uganda 30.7379 -0.6015 1337.6533 JPL INTERNAL
mcil Ogasawara Japan 153.9787 24.2901 35.6600 GSI EXTERNAL RUBIDIUM
mcm4 Ross Island Antarctica 166.6693 -77.8383 98.0222 JPL RUBIDIUM
mdo1 Fort Davis USA 255.9850 30.6805 2004.4761 JPL EXTERNAL XTAL VCO
mdvj Mendeleevo Russia 37.2145 56.0215 257.4000 IMVP EXTERNAL H-MASER
mdvo Mendeleevo, Moscow Region Russia 37.2236 56.0275 254.8000 DEOS-DUT H-MASER
medi Medicina Italy 11.6468 44.5199 50.0000 ASI H-MASER
mets Kirkkonummi Finland 24.3953 60.2175 94.6000 FGI H-MASER
metz Kirkkonummi (40 km west from Helsinki) Finland 24.3953 60.2175 94.5000 FGI EXTERNAL QUARTZ
mikl Mykolaiv Ukraine 31.9728 46.9728 94.7000 RIGC INTERNAL
mizu Mizusawa Japan 141.1328 39.1352 117.0000 GFZ Cesium
mkea Mauna Kea USA 204.5437 19.8014 3755.0000 JPL INTERNAL
mobj Obninsk Russian Federation 36.5697 55.1149 182.6079 GS RAS INTERNAL
mobn Obninsk Russian Federation 36.5695 55.1149 182.6340 RDAAC-JPL-IRIS INTERNAL
mobs Melbourne Australia 144.9753 -37.8294 40.0000 GA QUARTZ/INTERNAL
monp Laguna Mountains USA 243.5800 32.8900 1842.5200 SIO INTERNAL
morp Morpeth England 358.3145 55.2128 144.4000 NCL INTERNAL
mqzg Christchurch New Zealand 172.6547 -43.7027 154.6800 GNS NONE
msku Franceville Gabon 13.5520 -1.6312 387.0000 JPL INTERNAL
mtbg Mattersburg Austria 16.4043 47.7379 294.0000 BEWAG INTERNAL
mtka Mitaka Japan 139.5614 35.6795 109.0000 ENRI INTERNAL
nain Nain Canada 298.3113 56.5370 33.4800 NRCan/GSD INTERNAL
nama Namas Saudi Arabia 42.0446 19.2114 2703.2212 MIT INTERNAL
nano Nanoose Bay Canada 235.9135 49.2948 6.0000 GSC INTERNAL
nico Nicosia Cyprus 33.3964 35.1409 155.0000 BKG INTERNAL
nist Boulder USA 254.7374 39.9951 1648.4880 NIST EXTERNAL H-MASER
nisu Boulder USA 254.7378 39.9954 1653.9000 NIST EXTERNAL H-MASER
nium Alofi Niue 190.0729 -19.0766 90.1000 GNS INTERNAL
nklg Libreville Gabon 9.6698 0.3523 31.3870 CNES EXTERNAL
nlib North Liberty USA 268.4251 41.7716 207.0648 JPL H-MASER
nnor New Norcia Australia 116.1927 -31.0487 234.9840 ESOC EXTERNAL H-MASER
not1 Noto Italy 14.9898 36.8761 126.2000 ASI EXTERNAL H-MASER
novm Novosibirsk RUSSIA 82.9095 55.0305 149.9800 IMVP EXTERNAL H-MASER
npld Teddington United Kingdom 359.6604 51.4210 72.7000 NPL H-MASER
nrc1 OTTAWA CANADA 284.3762 45.4542 82.4800 NRCan/GSD H-MASER
nril Norilsk Russian Federation 88.3598 69.3618 47.8937 CMIS INTERNAL
nrl1 Washington U.S.A. 282.9756 38.8208 -26.0100 NRL H-MASER
nrmd NOUMEA FRANCE 166.4849 -22.2283 160.3800 DITTT
nssp Yerevan Republic of Armenia 44.5029 40.2265 1194.7548 JPL INTERNAL
ntus Singapore Republic of Singapore 103.6799 1.3458 79.0000 DUT INTERNAL
nurk Kigali Ruanda 30.0899 -1.9446 1485.3000 GFZ INTERNAL
nvsk Novosibirsk Russia 83.2355 54.8406 123.6429 IPGG SB RAS INTERNAL
nya1 Ny-Alesund Norway 11.8653 78.9296 84.0000 NMA H-MASER
nyal Ny-Alesund Norway 11.8700 78.9300 82.0000 NMA H-MASER
obe2 Oberpfaffenhofen Germany 11.3000 48.1000 651.0000 GFZ Potsdam RUBIDIUM
ohi2 O'Higgins Antarctic Peninsula 302.0987 -63.3211 33.1000 BKG INTERNAL
ohi3 O'Higgins Antarctic Peninsula 302.0986 -63.3211 32.1500 BKG INTERNAL
onsa Onsala Sweden 11.9255 57.3953 45.5000 LMV H-MASER
opmt Paris France 2.3349 48.8359 124.2000 OP EXTERNAL H-MASER
orid Ohrid Macedonia 20.7941 41.1273 773.0000 BKG INTERNAL
osje Osijek Croatia 18.6805 45.5608 153.9000 CGI INTERNAL
osn1 Osan South Korea 127.0240 37.0776 48.9000 NGA Cesium /Rcvr1
osn2 Osan South Korea 127.0240 37.0776 48.9000 NGA Cesium / Rcvr2
ous2 Dunedin New Zealand 170.5109 -45.8695 26.1000 GFZ-OU EXTERNAL RUBIDIUM
pado Padova Italy 11.8961 45.4112 64.7000 UNIPD INTERNAL
palm Palmer Station Antarctica 295.9489 -64.7751 31.2394 JPL INTERNAL
parc Punta Arenas Chile 289.1201 -53.1370 22.0000 G2 INTERNAL
park Parkes Australia 148.2646 -32.9988 397.4000 GA EXTERNAL H-MASER
pdel Ponta Delgada Portugal 334.3372 37.7477 110.8000 IGP QUARTZ
penc Penc Hungary 19.2815 47.7896 291.8000 FOMI SGO INTERNAL
pert Perth Australia 115.8852 -31.8019 12.9200 ESOC CESIUM
petp Petropavlovsk-Kamchatka Russian Federation 158.6070 53.0667 211.0343 KOMSP INTERNAL
pets Petropavlovsk-Kamchatka Russian Federation 158.6501 53.0233 102.2000 KOMSP INTERNAL
picl PICKLE LAKE CANADA 269.8380 51.4798 315.1000 NRCan/GFZ INTERNAL
pie1 Pie Town USA 251.8811 34.3015 2347.7109 JPL H-MASER
pimo Quezon City Philippines 121.0777 14.6357 95.5320 JPL INTERNAL
pin1 Pinyon Flat USA 243.5400 33.6100 1256.1600 SIO INTERNAL
pol2 Bishkek Kyrghyzstan 74.6943 42.6798 1714.2000 JPL INTERNAL
polv Poltava Ukraine 34.5429 49.6026 178.1000 RIGC INTERNAL
pots Potsdam Germany 13.0700 52.3800 174.0000 GFZ INTERNAL
pove Porto Velho Brasil 296.1037 -8.7093 119.6000 IBGE
prds CALGARY CANADA 245.7065 50.8713 1247.9400 NRCan/GSD H-MASER
pre1 Pretoria South Africa 28.2240 -25.7463 1416.4000 NGA Cesium /Rcvr1
pre2 Pretoria South Africa 28.2240 -25.7463 1416.4000 NGA Cesium /Rcvr2
ptbb Braunschweig Germany 10.4597 52.2962 130.2000 BKG CESIUM FREQUENCY STANDARD
qaq1 Qaqortoq / Julianehaab Greenland (Denmark) 313.9522 60.7152 110.4000 DNSC RUBIDIUM
qiki Qikiqtarjuaq (Baffin Island) Canada 295.9663 67.5593 13.3000 NRCan/GSD INTERNAL
qui1 Quito Ecuador 281.5064 -0.2152 2922.6000 NGA Cesium /Rcvr1
qui2 Quito Ecuador 281.5064 -0.2152 2922.6000 NGA Cesium /Rcvr2
quin Quincy USA 239.0556 39.9746 1105.7651 JPL INTERNAL
rabt Rabat Morocco 353.1457 33.9981 90.1000 UNAVCO INTERNAL
ramo Mitzpe Ramon Israel 34.7631 30.5978 893.1000 GSM INTERNAL
rbay Richardsbay South Africa 32.0784 -28.7955 31.7927 HRAO INTERNAL
rcmn NAIROBI KENYA 36.8938 -1.2210 1607.5400 RCMRD
recf Recife Brasil 325.0485 -8.0510 20.2000 IBGE
reso Resolute (Cornwallis Island) Canada 265.1067 74.6908 34.9000 NRCan/GSD INTERNAL
reun Le Tampon France 55.5717 -21.2083 1558.4000 IGN INTERNAL
reyk Reykjavik Iceland 338.0445 64.1388 93.1000 BKG INTERNAL
riga Riga Latvia 24.0587 56.9486 34.7000 LUAI INTERNAL
rio2 Rio Grande Argentina 292.2489 -53.7855 32.0000 GFZ Potsdam INTERNAL
riop Riobamba Ecuador 281.3489 -1.6506 2817.1880 JPL INTERNAL
roap San Fernando Spain 353.7937 36.4643 73.7000 ROA EXTERNAL H-MASER
roch Pinemeadow USA 243.3900 33.6100 1393.7500 SIO INTERNAL
rock Simi Valley USA 241.3200 34.2400 553.3900 USGS INTERNAL
salu São Luis Brasil 315.7875 -2.5935 18.9000 IBGE INTERNAL
sant Santiago Chile 289.3314 -33.1503 723.0746 JPL CESIUM
sask Saskatoon Canada 253.6016 52.1963 580.0000 NRCan/GSD INTERNAL
sass Sassnitz Island of Ruegen Germany 13.6433 54.5136 68.2000 BKG INTERNAL
savo Salvador Brasil 321.5677 -12.9392 76.3000 IBGE INTERNAL
sch2 SCHEFFERVILLE CANADA 293.1674 54.8321 498.1800 NRCan/GSD RUBIDIUM
scip San Clemente Island USA 241.5100 32.9100 452.8500 SIO INTERNAL
scor Scoresbysund/Ittoqqoormiit Greenland(Denmark) 338.0497 70.4853 128.5000 DNSC External Rubidium
scub Santiago de Cuba Cuba 284.2377 20.0121 21.9500 GFZ INTERNAL
sele Almaty Kazakstan 77.0168 43.1791 1340.0000 JPL INTERNAL
sey1 La Misere Seychelles 55.4794 -4.6737 537.9123 JPL INTERNAL
sfdm Piru USA 241.2500 34.4600 291.5000 UNAVCO
sfer San Fernando Spain 353.7944 36.4643 85.8000 ROA CESIUM
shao Sheshan China 121.2004 31.0996 22.0901 JPL EXTERNAL H-MASER
she2 Shediac Canada 295.4480 46.2207 -15.3000 NRCan/GSD INTERNAL
simo Simonstown South Africa 18.4396 -34.1879 39.4910 HRAO INTERNAL
sio3 La Jolla USA 242.7500 32.8600 34.8800 SIO INTERNAL
slor San Lorenzo Honduras 272.5635 13.4239 11.9950 IGN-HO
sni1 San Nicolas Island USA 240.4800 33.2500 239.6900 USGS INTERNAL
sofi Sofia Bulgaria 23.3947 42.5561 1119.6000 BKG INTERNAL
sola Solar Village Saudi Arabia 46.4006 24.9107 760.1393 JPL INTERNAL
spk1 Saddle Peak USA 241.3500 34.0600 440.1400 USGS INTERNAL
spt0 Boras Sweden 12.8913 57.7150 219.9000 LM H-MASER
ssia San Salvador El Salvador 270.8838 13.6973 664.4000 CNR
stjo ST. JOHN'S CANADA 307.3223 47.5952 152.8400 NRCan MASER
stk2 Shintotsukawa Japan 141.8448 43.5286 118.5400 GSI CESIUM
str1 Canberra Australia 149.0101 -35.3155 799.9640 GA QUARTZ/INTERNAL
str2 Canberra Australia 149.0169 -35.5319 799.9540 GA QUARTZ/INTERNAL
sulp Lviv Ukraine 24.0145 49.8356 370.5000 RIGC INTERNAL
sunm BRISBANE AUSTRALIA 153.0352 -27.4849 92.0000 NR&M
suth Sutherland South Africa 20.8105 -32.3802 1799.7659 HRAO INTERNAL
sutm Sutherland South Africa 20.8109 -32.3814 1797.6000 GFZ Potsdam INTERNAL
suva Suva Fiji 178.4252 -18.1459 73.0000 PGPSF INTERNAL
suwn Suwon-shi Korea 127.0542 37.2755 83.9322 NGII CESIUM=20
svtl Svetloe Russia 29.7809 60.5329 77.1000 IAA EXTERNAL H-MASER CH1-80
sydn Sydney Australia 151.1504 -33.7809 85.6130 GA EXTERNAL CESIUM
syog East Ongle Island Antarctica 39.5837 -69.0070 50.0902 GSI CESIUM
tabl Wrightwood USA 242.3200 34.3800 2228.0300 USGS INTERNAL
tah1 Papeete Tahiti 210.3938 -17.5770 99.9270 NGA Cesium /Rcvr 1
tah2 Papeete Tahiti 210.3938 -17.5770 99.9270 NGA Cesium /Rcvr2
tcms Hsinchu Republic of China 120.9874 24.7980 77.2607 NML INTERNAL
tehn TEHRAN IRAN 51.3341 35.6973 1194.5700 NCC INTERNAL
tgcv Palmeira Republic of Cape Verde 337.0172 16.7548 35.0000 PGPSF INTERNAL
thti Papeete Tahiti, French Polynesia 210.3937 -17.5769 98.0400 CNES EXTERNAL RUBIDIUM
thu2 Thule Airbase Greenland(Denmark) 291.1750 76.5370 36.1000 NSI EXTERNAL RUBIDIUM
thu3 Thule Airbase Greenland 291.1750 76.5370 36.1000 DNSC EXTERNAL RUBIDIUM
tid1 (Near) Canberra Australia 148.9800 -35.3992 665.3627 GA H-MASER
tid2 Tidbinbilla Australia 148.9800 -35.3992 665.3719 JPL H-MASER
tidb Tidbinbilla Australia 148.9800 -35.3992 665.3719 JPL H-MASER
titz Titz Germany 6.4316 51.0353 155.6000 BKG INTERNAL
tixi Tixi Russian Federation 128.8664 71.6345 46.9847 TIXI INTERNAL
tixj Tixi Russian Federation 128.8664 71.6345 47.0509 SST YEMSP GS SB RAS INTERNAL
tlse Toulouse France 1.4808 43.5607 211.6000 CNES CESIUM
tnml Hsinchu Republic of China 120.9873 24.7980 75.8599 NML EXTERNAL RUBIDIUM
torp Torrance USA 241.6700 33.8000 -5.2000 USGS INTERNAL
tow2 Cape Ferguson Australia 147.0557 -19.2693 87.3860 GA INTERNAL
trab Trabzon Turkey 39.7756 40.9947 99.2000 BKG INTERNAL
trak Irvine USA 242.2000 33.6200 115.5600 SIO INTERNAL
tro1 Tromsoe Norway 18.9396 69.6627 138.0000 Kartverket INTERNAL
trom Tromsoe Norway 18.9383 69.6639 132.0000 NMA RUBIDIUM
tsk2 Tsukuba Japan 140.0871 36.1056 69.9300 GSI CESIUM
tskb Tsukuba Japan 140.0875 36.1057 67.3000 GSI CESIUM
tubi Gebze TURKEY 29.4507 40.7867 221.8310 TUBITAK INTERNAL
tukt Tuktoyaktuk Canada 227.0057 69.4382 1.5400 NRCan/GSD INTERNAL
twtf Taoyuan Republic of China 121.1645 24.9536 203.1220 TL steered H-MASER
uclp Los Angeles USA 241.5600 34.0700 111.5600 USGS INTERNAL
uclu Ucluelet Canada 234.4584 48.9256 10.0000 GSC INTERNAL CLOCK
ufpr Curitiba Brasil 310.7690 -25.4484 925.8000 IBGE
ulab Ulaanbataar Mongolia 107.0500 47.6700 1611.7000 GFZ
unbj Fredericton Canada 293.3583 45.9502 22.7500 UNB INTERNAL
unfe FERRARA ITALY 11.5995 44.8330 81.0100 ASI INTERNAL
unsa Salta Argentina 294.5924 -24.7275 1257.8000 GFZ Potsdam INTERNAL
urum Urumqi China 87.6300 43.5900 856.1000 GFZ INTERNAL
usc1 Los Angeles USA 241.7100 34.0200 21.9300 USGS INTERNAL
usn3 Washington U.S.A. 282.9337 38.9206 57.5190 USNO H-MASER
usno Washington USA 282.9338 38.9190 48.8880 USNO steered H-MASER
usud Usuda Japan 138.3620 36.1331 1508.6193 JPL H-MASER
uzhl Uzhgorod Ukraine 22.2976 48.6320 232.0000 MAO INTERNAL
vacs Vacoas Mauritius 57.4970 -20.2971 420.4000 JPL INTERNAL
vald VAL D'OR CANADA 282.4358 48.0971 312.7800 NRCan/GFZ INTERNAL
valp Valparaiso Chile 288.3739 -33.0272 31.0000 G2 INTERNAL
vesl Vesleskarvet Antarctica 357.1583 -71.6738 862.4000 HartRAO INTERNAL
vill Villafranca Spain 356.0480 40.4436 647.5000 ESOC CESIUM
vis0 Visby Sweden 18.3673 57.6539 79.8000 LMV RUBIDIUM
vndp Vandenberg Air Force Base USA 239.3800 34.5600 -11.5100 UNAVCO INTERNAL
wab2 Wabern Switzerland 7.4642 46.9237 611.0000 METAS EXTERNAL H-MASER
warn Rostock-Warnemuende Germany 12.1014 54.1698 50.7000 BKG INTERNAL
wdc3 Washington D.C. USA 282.9337 38.9206 57.8720 NGA USNO Master Clock Ensemble
wdc4 Washington D.C. USA 282.9337 38.9206 57.8720 NGA USNO Master Clock Ensemble
wel1 Wellington New Zealand 174.7787 -41.2726 46.9000 NGA Cesium /Rcvr 1
wel2 Wellington New Zealand 174.7787 -41.2726 46.9000 NGA Cesium /Rcvr 2
wes2 Westford USA 288.5060 42.6130 86.0170 NOAA-NGS H-MASER
wgtn Wellington New Zealand 174.8059 -41.3235 26.0600 GNS NONE
whit WHITEHORSE CANADA 224.7779 60.7505 1427.0000 NRCan/GSD RUBIDIUM
widc Sky Valley USA 243.6100 33.9300 445.0400 SIO INTERNAL
will Williams Lake Canada 237.8322 52.2369 1096.0000 GSC INTERNAL
wind Windhoek Namibia 17.0894 -22.5749 1734.7000 GFZ INTERNAL
wlsn Mt. Wilson USA 241.9400 34.2300 1705.2700 USGS INTERNAL
wroc Wroclaw Poland 17.0619 51.1131 181.0000 IGG WUELS INTERNAL
wslr Whistler Canada 237.0788 50.1265 909.0000 GSC internal clock steering
wsrt Westerbork The Netherlands 6.6045 52.9146 86.0000 DUT H-MASER
wtza Koetzting Germany 12.8789 49.1442 666.0000 BKG CESIUM
wtzj Bad Koetzting Germany 12.8789 49.1442 665.9000 BKG INTERNAL
wtzr Bad Koetzting Germany 12.8789 49.1442 666.0000 BKG EXTERNAL H-MASER EFOS 18
wtzs Bad Koetzting Germany 12.8786 49.1448 663.4000 BKG EXTERNAL H-MASER EFOS 18
wtzz Bad Koetzting Germany 12.8789 49.1442 665.9000 BKG EXTERNAL H-MASER EFOS 18
wuhn Wuhan City P.R. China 114.3573 30.5317 25.8000 WHU CESIUM
xian Lintong P.R.C. 109.2215 34.3687 81.5686 CAS-JPL QUARTZ
xmis Christmas Island Indian Ocean Australia 105.6885 -10.4501 261.5000 GA INTERNAL
yakt Yakutsk Russian Federation 129.6803 62.0310 103.3700 RDAAC-IRIS CESIUM
yakz Yakutsk Russian Federation 129.6810 62.0310 100.0644 RDAAC-IRIS INTERNAL
yar2 Dongara Australia 115.3470 -29.0466 241.2967 GA RUBIDIUM
yarr Dongara Australia 115.3470 -29.0466 241.3820 GA EXTERNAL
yebe Yebes Spain 356.9114 40.5249 973.0000 IGN-E H-MASER
yell YELLOWKNIFE CANADA 245.5193 62.4809 181.0000 NRCan/GSD H-MASER
yibl Yibal Oman 56.1123 22.1865 95.1000 PDO INTERNAL
ykro Yamoussoukro Cote d'Ivorie 354.7599 6.8706 270.0000 JPL INTERNAL
yssk Yuzhno-Sakhalinsk Russian Federation 142.7167 47.0297 91.2887 RDAAC-IRIS INTERNAL
zamb Lusaka Zambia 28.3110 -15.4255 1324.9144 HRAO INTERNAL
zeck Zelenchukskaya Russia 41.5651 43.2884 1166.8000 BKG INTERNAL
zim2 Zimmerwald Switzerland 7.4650 46.8771 956.4000 swisstopo INTERNAL
zimj Zimmerwald Switzerland 7.4651 46.8771 954.3000 AIUB INTERNAL
zimm Zimmerwald Switzerland 7.4653 46.8771 956.7000 AIUB INTERNAL
zwe2 Zwenigorod Russia 36.7600 55.7000 272.0000 GFZ INTERNAL
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