aaa = Abidjan, Ivory Coast
aab = Abra Pampa, Argentina
aac = Abrolhos Lighthouse, Brazil
aad = Abut Head (Okarito Meridional Circuit) South Island, New Zealand
aae = Accra, Leigon Pillar (GCS No. 121), Ghana
aaf = Aden Observatory
aag = Aden Datum
aah = Adelaide Observatory, South Australia
aai = Adjusted between Hong Kong and Nanking Astronomic Points
aaj = Adindan (30th Meridian) Datum, Sudan
aak = Adjusted between Red Bridge Datum and Nanking Datum
aal = Aee Pier, Phoenix Islands
aam = Aerodist Datum
Afgooye use cmo
aan = African Datum
aao = Agourai Base North End, Morocco
aap = Agri (Danish GI 1934), Denmark
aaq = Agrihan Astronomic Station (1920), Agrihan Island, Marianas Islands
aar = Ahaura (Grey Meridional Circuit), South Island, New Zealand
aas = Ain el Abd, Kuwait
aat = Akmolinsk Mosque, USSR
aba = Akra Milon (Cum-Burnu), Leros
abb = Akureuri, Iceland
abc = Alamagan Astromic Station (1920), Alamagan Island, Mariana Islands
abd = Albasin, USSR
abe = Al Bushairyah, Qatar
abf = Al Da Asa, Arabia
abg = Aleksandrovsk, USSR
abh = Alma Ata, USSR
abi = American Samoa Datum 1962, Samoa Islands
abj = Amersfoort 1885, Netherlands
abk = Anatahan Astronomic Station (1920), Anatahan Island, Marcus Islands
abl = Anatahan E, 29th Engr 1964, Anatahan Island, Mariana Islands
abm = Angola Datum, Angola
abn = Ankara, Turkey
abo = An-lu Astro, China
abp = A Patutahi, New Zealand
abq = Aon Island Triangulation Station, Utirik Atoll, Marshall Islands
abr = Apia Observatory Tranist House, Opolu Island, Samoa Island
abs = Apollo 15 Datum, Moon
abt = Approximate European Datum, Afghanistan
aca = Approximate European Datum, Cyprus
acb = Approximate European Datum, Egypt
acc = Approximate European Datum, Iran
acd = Approximate European Datum, Iraq
ace = Approximate European Datum, Israel
acf = Approximate European Datum, Jordan
acg = Approximate European Datum, Libya
aci = Approximate European Datum, Syria
acj = Approximate European Datum, Turkey
ack = Approximate Hong Kong Datum
acl = Approximate Indian 1960 Datum
acm = Approximate Indian Datum, Afghanistan
acn = Approximate Indian Datum, Burma
aco = Approximate Indian Datum, Cambodia, Laos, North Vietnam, South Vietnam
acp = Approximate Indian Datum, India
acq = Approximate Indian Datum, Thailand
acr = Approximate Kweiyang, China
acs = Approximate Luzon Datum, Philippines
act = Approximate Nanking Datum
ada = Approximate Nanking 1960 Datum
adb = Aproximate North American Datum 1927, Greater Antilles
adc = Approximate Old Hawaiian Datum, Hawaiian Islands
add = Approximate Red Bridge Datum
ade = Approximate Tokyo Datum
adf = Arahodoka-Byo Astro
adg = Arc (of the 30th Meridian) 1935 Datum, Africa
adh = Arc (of the 30th Meridian) 1950 Datum, Africa
adi = Arc (of the 30th Meridian) 1960 Datum, Africa
adj = Arc (of the 30th Meridian) (unspecified) Datum, Africa
adk = Archway Rock, Gough Island
adl = Arequipa Astro, Bolivia
adm = Arkhangel'sk, USSR
adn = Arumenii Island Triangulation Station, Bikor Atoll, Marshall Islands
ado = Arutunga (Anchorage) Observation Spot, Aitutaki Island, Cook Islands
adp = A.S. 120 Tokong Hill, Balik Papan, Kalimantan, Indonesia
adq = Ascension Astro 1955
adr = Ascension Island 1958
ads = Ashkhabad, USSR
adt = Asor Astro 1966, Caroline Islands
aea = Astro Observation Point East Island Maug, Mariana Islands
aeb = Astro Observation Point Pagan, Mariana Islands
aec = Astro Observation Point Rota, Mariana Islands
aed = Astro Observation Point Uracus, Mariana Islands
aee = Astro Pier, Swains Island, Samoa Islands
aef = Astro - 1958, Montserrat, Lesser Antilles
aeg = Astro 502, USSR
aeh = Astro 809, USSR
aei = Astronomic Point (1951) Yap, Caroline Islands
aej = Astronomic Station (1951), Elato Atoll, Caroline Islands
aek = Astronomic Station (1952) Marcus Island
ael = Astronomic Station ''A' (1951), Jemo Island, Marshall Islands
aem = Astronomic Station Bab South (1947), Babelthaup Is., Caroline Islands
aen = Astronomic Station Beacon E (1945). Iwo-Jima, Bonin Islands
aeo = Astronomic Station B1 (1920), Gaferut Island, Caroline Islands
aep = Astronomic Station B4 (1920), Sorol Atoll, Caroline Islands
aeq = Astronomic Station Hong (1947), Admiralty Islands
aer = Astronomic Station Mirami-Oaguri-Shima, Daito Islands, Ryukyu Islands
aes = Astronomic Station Nishino-Shima, Bonin Islands
aet = Astronomic Station No. B (1921), Ifalik Atoll, Caroline Islands
afa = Astronomic Station No. B1 (1921), Pulap Atoll, Caroline Islands
afb = Astronomic Station No. 1 (1951), Nomoi Islands, Caroline Islands
afc = Astronomic Station No. 1 (1951), Pingelap Island, Caroline Islands
afd = Astronomic Station No. 1 (1951), Puluwat Atoll, Caroline Islands
afe = Astronomic Station No. 1 (1951), Woleai Atoll, Caroline Islands
aff = Astronomic Station No. 1-A (1951), Namorik Atoll, Marshall Islands
afg = Astronomic Station No. 2 (1951), Majuro Atoll, Marshall Islands
afh = Astronomic Station No. 2 (1951), Truk Island, Caroline Islands
afi = Astronomic Station No. 2 (1952), Wake Island
afj = Astronomic Station No. 4 (1951), Mukuoro Atoll, Caroline Islands
afk = Astronomic Station No. 8 (1951), Ngatik Atoll, Caroline Islands
afl = Astronomic Station No. 19 (1951), Nomwin Atoll, Caroline Islands
afm = Astronomic Station No. 32 (1951), Ulithi Atoll, Marshall Islands
afn = Astronomic Station No. 42 (1952), Kwajalein Atoll, Marshall Islands
afo = Astronomic Station No. 61-A (1951), Jauluit Atoll, Marshall Islands
afp = Astronomic Station No. 5, Chichi-Jima, Bonin Islands
afq = Astronomic Station Ponape (1951), Ponape Island, Senyavin Islands,
Caroline Islands
afr = Astronomical Fixation W.A. 21, Western Australia
afs = Astronomical Station, Dunpu, New Guinea
aft = Astronomical Station, Salankana, New Guinea
aga = Astronomical Station, Wau, New Guinea
agb = Astro-Secor 1966, Tarawa and Gilbert Islands
agc = Asunción Astronomic Station (1920), Mariana Islands
agd = Atafu Astro, Atafu Island, Tokelau Islands
age = Athens Datum, Greece
agf = Athens National Observatory, Greece
agg = Athi, Kenya
agh = Austral Pillar W.A., Western Australia
agi = Australian Army Observation Point L.A. 22, Lacrosse Island, Western
Australia
agj = Australian Army Observation Point W.A. 3, Cockatoo Island, Western
Australia
agk = Australian Datum, Australia
agl = Australian Geodetic, Australia
Australian National Datum, Australia see Australian Datum (agk)
agm = Australian Provisional Datum, Australia
agn = Ayabacas Base, Peru
ago = Azabu Observatory, Tokyo (Bonin Islands and Ryukyu Islands)
agp = B of base-Luiz Correia, Brazil
agq = Baa-Ratti, Lesser Sunda Islands, Indonesia
agr = Bahia Honda, Venezuela
ags = Baie du Morbihan Base North End, Kerguelen
agt = Baker Island Astro Pier, Baker Island, Oceania
aha = Baku-Aleksandra-Nevskiy Cathedral, USSR
ahb = Baku 1927 System, USSR
ahc = Balanachan, Philippines
ahd = Balikesir, Turkey
ahe = Baliza Chiriguano, Graham Land, Antarctica
ahf = Baltra Island Astro, Galapagos Island, Ecuador
ahg = Banjer Masin Astro, Borneo
ahh = Banika Island Observation Spot, Russel Island, Solomon Islands
ahi = Bara Bay, Buru, Moluccas, Indonesia
ahj = Barcelona, Venezuela
ahk = Barreira do Monta, Brazil
ahl = Base Este (Fort de Coimbra), Brazil
ahm = Batavia, Java, Indonesia
ahn = Bathurst Base East End, Gambia
aho = Beacon A, Espiritu Santo Island, New Hebrides
ahp = Beacon, Christmas Island, Line Islands
ahq = Bekaa Badse South End, Lebanon
ahr = Belgian 1950 System (Lommel Signal), Belgium
ahs = Belgrano (old), Argentina
aht = Belgrano 1928, Argentina
aia = Bengasi Lighthouse, Libya
aib = Beni Meyimel, Morocco
aic = Barracks, Libya
aid = Bermuda Datum 1943, Bermuda Islands
aie = Bermuda Datum 1957, Bermuda Islands
aif = Bermuda Datum 1959, Bermuda Islands
aig = Bermuda Datum 1964, Bermuda Islands
aih = Bern (1898), Switzerland
aii = Biak Base West End, Biak Island, Schouten Islands
aij = Biao, Fernando Po Island, Spanish Guinea
aik = Bikati (Pikhat) Island Astro, Gilbert Island
ail = Bikini, Marshall Islands
aim = Binaro Astro, 1949
ain = Birnie Island, Phoenix Island
aio = Bissau Base Northwest End Pillar, Guinea-Bissau
aip = Bjornova
aiq = Blumut, Johore, Malaysia
air = Boa Entrada, 1955
ais = Boca Grande Astro, Venezuela
ait = Boghra, Afghanistan
aja = Bogotá Observatorio, Colombia
ajb = Bogoslovskiy, USSR
ajc = Bogovskaya, USSR
ajd = Bokku Island Triangulation Station, Wotje Atoll, Marshall Islands
aje = Bolkhov, USSR
ajf = Bon Said Lighthouse, Tunisia
ajg = Bonto Island Triangulation Station, Marshall Islands
ajh = Borowa Gora, Poland
aji = Borugu-Byo Astro, China
ajj = Bosun Astro 1941, Midway Islands
ajk = Botanical Hill, South Island, New Zealand
ajl = Bowen Observation Spot, Queensland, Australia
ajm = Brazzaville, Congo (Brazzaville)
ajn = BS 67, Malaysia
ajo = Bucharest, Rumania
ajp = Buffelsfontein, South Africa
ajq = Bukit Asa Datum, Selangor, Malaysia
ajr = Bukit Panau, Kelantan, Malaysia
ajs = Bukit Rimpan, Banka Island, Indonesia
ajt = Bulgarian, Bulgaria
aka = Buller, South Island, New Zealand
akb = Busoga, Uganda
akc = Busowa, Uganda
akd = Bushehr, Iran
ake = Byrd Station, Antarctica
akf = Cabo Bojador Lighthouse, Spanish Sahara
akg = Cagayan Sulu, Cagayan Sulu Island, Philippines
akh = Cairns, Queensland, Australia
aki = Camacupa Base SW End (Campo de Aviacao), Angola
akj = Camorta, Nicobar Islands
akk = Camp Area Astro
akl = Campo de Mayo Base, Argentina
akm = Campo Inchauspe, Argentina
akn = Campos Rodrigues, Mozambique
ako = Cam Lang, Vietnam
akp = Candlemas Island Astro, Antarctica
akq = Canton Island Astro 1966
akr = Cap Esteiras Astro
aks = Cape Canaveral Datum, USA
akt = Cape Hotham Lighthouse, Northern Territory, Australia
ala = Cape St Jacques, Vietnam
alb = Cape Town Observatory, South Africa
alc = Cape, South Africa
ald = Caracas (Observatorio Cajigal) 1911, Venezuela
ale = Caracas (Observatorio Cajigal) 1937, Venezuela
alf = Cardenas, Cuba
alg = Carthage, Tunisia
alh = Castanea delle Furie, Sicily
ali = Castelli Base SE End, Argentina
alj = Castelo di São Jorge, Lisbon, Portugal
alk = Castiletes, Venezuela
all = Cay, Panaeati Island, Deboyne Islands, Louisiade Archipelago
alm = Central Origin, Australia
aln = Centro de Base (Mato Grosso), Brazil
alo = Cerro de Montevideo, Uruguay
alp = Cerro Puntiagudo, Argentina
alq = Ceylon
alr = Chagos (Sao 69)
als = Ch'ang'chun, Manchuria
alt = Che'eng-te, Manchuria
ama = Chi-kou-yang, China
amb = Ch'in Hsien Astro, China
amc = Ch'ung-Yang Astro, China
amd = Chang-chia-kou, China
ame = Chatham Island Astronomical Section, Chatham Island, New Zealand
amf = Chatham Island Observatory, Port Blair, Andaman Islands
amg = Chen-tu Astro, China
amh = Chernyy Verkh, Bulgaria
ami = Chiao-shan, China
amj = Chichi Jima, Bonin Islands
amk = Chich-ch'eng Astro, China
aml = Chin-men'tao Astro, China
amm = Chiu-chiang Astro, China
amn = China Land Survey School, China
amo = Ching-chou Astro, China
amp = Ching-lo Astro, China
amq = Ching-men Astro (West Base), China
amr = Cho-lu Astro, China
ams = Chos Malal, Argentina
amt = Christmas Island Astro
ana = Chua Astro
anb = Chung-kung-ch'i Astro, China
anc = Chufut-Kale, USSR
and = Church (Luganville), Espiritu Santo Island, New Hebrides
ane = Chyahatsuro Astro, China
anf = Circuit, Rhodesia
ang = Clipperton Island Astro 1957, Clipperton Island
anh = Clipperton Island Light 1935, Clipperton Island
ani = Colline Verte Lighthouse (Kwangshowan), China
anj = Conakry Pyramid of the Service Géographique, Guinea
ank = Congo Yella Base, Zaire
anl = Congreso Plaza Constitucion, Asunción, Paraguay
anm = Constanta, Rumania
ann = Cookes Pillar, Broome, Western Australia
ano = Copenhagen (Nicolai), Denmark
anp = Córdoba, Argentina
anq = Corrego Alegre, Brazil
anr = Cotonou Astro
ans = Cruz Astro, Guadalcanal, Solomon Islands
ant = Dacin-byo Astro, China
aoa = Daito Shima Astro, Ryukyu Islands
aob = Dakar, Senegal
aoc = Danish Geodetic Institute 1934 System (AGRI), Denmark
aod = Darwin Observation Pillar, Northern Territory, Australia
aoe = Datum da Ilha das Flores, Flores and Corvo, Azores
aof = Datum de Ilha Gracioso-Base SW, Terceira, São Jorge, Pico,
Faial, and Graciosa, Azores
aog = Datum du Ilha de São Miguel-S, Bras, São Miguel and
Santa Maria Islands, Azores
aoh = Datum Nacional (San José), Chile
Datum Provisional la Canoa see Provisional South American 1956 Datum (cat)
aoi = Davao, Mindinao, Philippines
aoj = DC S-3 Astro-1913, St Lucia, Lesser Antilles
aok = Dedele Point Observation Spot, Papua
aol = Dergachi, USSR
aom = Derna Lighthouse, Libya
aon = Desaiz, Martinique, Lesser Antilles
aoo = Dili, Timor, Indonesia
aop = Direction Island Observation Spot, Coco or Keeling Islands
aoq = Djakarta New, Indonesia
Djebel Beni Mdjimet see Beni Meyimel (aib)
aor = Dodo Island Observation Spot, Arno Atoll, Marshall Islands
aos = Dominica Astro M-12, Dominica, Lesser Antilles
aot = Dorpat II, Estonia
apa = DOS Astro Guxi (Guadalcanal), Solomon Islands
apb = DOS Astro SLX2, Sierra Leone
apc = DOS 415, Gambia
apd = Douala Airfield Flagstaff, Cameroon
ape = Dunnose, Great Britain
apf = East Base, Loyalty Islands
apg = East Mediterranean Chain, Tunisia
aph = Easter Island 1967
api = Eastern Rock, Poeloe Bam, West Irian
apj = Egypt-1930, Egypt (United Arab Republic)
apk = El Aaiun, Spanish Sahara
apl = El Bolson SB, Argentina
apm = Elbow Cay Light, Bahamas
apn = Emery Point Lighthouse, Northern Territory, Australia
apo = Enderbury Island, Phoenix Islands
app = Enibrik Island Observation Spot, Ailinginae Atoll, Marshall Islands
apq = Eniibukku Island Observation Spot, Mogiri, Marshall Islands
apr = Eniirikku Island Observation Spot, Mogiri, Marshall Islands
aps = Eniwetok Astro Pier, Marshall Islands
apt = Eniwetok-Wake 1960 Datum, Marshall Islands
aqa = Enuebing Triangulation Station, Ailinglapalap Atoll, Marshall Islands
aqb = Enyvertok Island Observation Spot, Rongerik Atoll, Marshall Islands
aqc = Erappu Channel Triangulation Station, Ailuk Atoll, Marshall Islands
aqd = Erdöhegy, Hungary
aqe = Erh-lien Dabusu Astro, China
aqf = Estanques, Venezuela
aqg = ETC Longitude Pillar, Malta Islands
aqh = European Datum
aqi = Extremo B2 Base Forteleza, Brazil
aqj = Extremo SE da Base (Minas Gerica), Brazil
aqk = Extremo Sul da Base (Piaui), Brazil
aql = Faaire Island Astro Station, Tuamoto Archipelago
aqm = Fais Astro, Fais Island, Caroline Islands
aqn = Fakfak, West Irian
aqo = Famagusta, Cyprus
aqp = Fao, Iraq
aqq = Farallon de Medinilla Astro Station (1921), Mariana Islands
aqr = Farallon de Pajaros Astro Station (1920), Mariana Islands
aqs = Fernando de Noronha Astro, Brazil
aqt = Fiji, 1956
ara = Final Sydney Datum 1941, New South Wales, Australia
arb = Final 1958, Iran
arc = Firestone Astro, Liberia
ard = First Astro 1942
are = Flagstaff Government Station, Abaiang Atoll, Gilbert Islands
arf = Flamingo Cay Light, Bahamas
arg = Flores Astro 1939
arh = Forteleza Astro, Brazil
ari = Fort Ambon, Moluccas, Indonesia
arj = Fort Charles Flagstaff, Greater Antilles
ark = Fort Cornwallis Flagstaff, Penang, Malaysia (West)
arl = Fort George Observation Spot, Cayman Islands
arm = Fort St Louis Flagstaff, Martinique, Lesser Antilles
arn = Fort Thomas 1955, St Kitts-Nevis, Lesser Antilles
aro = French Hydrographic
arp = French Mission Astro, Ecuador
arq = Front Range, New Caledonia
arr = Fuglenes, Norway
ars = Gabon 1951
art = Gaferut Astro, Caroline Islands
asa = Gahai-Byo Astro, China =
asb = Gambia Datum, Gambia
asc = Gan 1970
asd = Gandajika Base, Zaire
ase = Gardner Island, Phoenix Islands
asf = Gavan Sibir, USSR
asg = Gawler Downs, South Island, New Zealand
ash = Gellerthegy, Hungary
asi = Genoa 1908, Italy
asj = Genuk, Java, Indonesia
ask = Geodetic Datum 1949, New Zealand
asl = Ghana Datum, Ghana
asm = Gladstone Observation Spot, Queensland, Australia
asn = Goenoeng Dempo, Sumatra, Indonesia
aso = Golf Links, Sarawak, Malaysia
asp = Gora A Krasnovodsk Gur Yev, USSR
asq = Gorda Point Lighthouse, Nicaragua
asr = Gould Astro, Antarctica
ass = Goulter S Hill, South Island, New Zealand
ast = Government General, Dakar, Senegal
ata = Government Offices Flagstaff, Singapore
atb = Graciosa Base SW End, Terceira, Azores
atc = Grasberg, New Guinea
atd = Great Inagua Island Light, Bahamas
ate = Great Isaacs Light, Bahamas
atf = Great Ragged Island Light, Bahamas
atg = Great Stirrup Cay Astro, Bahamas
ath = Greek Datum, Greece
ati = Greenwich Observatory, Great Britain and Ireland
atj = Gromen 1951
atk = Grönfjörden, Svalbard
atl = Gronne Island, Greenland
atm = Grupo Escolar, Brazil
atn = G Segara Datum, Kalimantan, Indonesia
ato = G Serindung 1962
atp = Guam 1913
atq = Guam 1963
atr = Guadalupe Astro 1946
ats = Guardia Vecchia, Sardinia, Italy
att = Guasopa, Woodlark (Murua) Island, Trobriand Islands
baa = Guayaquil Astro, Ecuador
bab = Guguan Astro Station (1920), Mariana Islands
bac = Guhong Gajah Trom, Trengganu, Malaysia (West)
bad = Gunong Hijau Larut, Perak, Malaysia (West)
bae = Gun Cay Light, Bahamas
baf = Gun Hill, Negri Sembilan, Malaysia (West)
bag = Ha-erh-pin, Manchuria
bah = Habay-La-Neuve Base North End, Luxembourg
bai = Hai-la-erh, Manchuria
baj = Hainan Island, China
bak = Hairingassho-Byo Astro, China
bal = Hallett Astro, Antarctica
bam = Hammond Rock Light, New Guinea
ban = Hao'hsien Astro, China
bao = Hanoi Belvedere (Mirador), Vietnam
bap = Harbin, Manchuria
baq = Harvey Cay Light, Bahamas
bar = Hassetche Base South End, Syria
bas = Hawaiian Hiran (WGS 1966)
bat = Helsinki, Kallio Church, Finland
bba = Herat North, Afghanistan
bbb = Hermannskogel, Austria
bbc = Hito XVIII Astro, Chile
bbd = Hjörsey 1955, Iceland
bbe = Ho-ching Astro, China
bbf = Hog Island Light, Bahamas
bbg = Hogsty Reef Light, Bahamas
bbh = Hokkaido Central, Japan
bbi = Hole-in-the-Wall Light, Bahamas
bbj = Hong Kong-Nanking Astro Datum
bbk = Hong Kong-New Territories Datum, Hong Kong
bbl = Hong Kong 1929 Datum
bbm = Hong Kong 1963
bbn = Hope Bay, Graham Land, Antarctica
bbo = Horinhodoka Astro, China
bbp = Hospital Astro, Paraguay
bbq = Hsi-an, China
bbr = Hsi-ta-shan, Manchuria
bbs = Hsin-Yang Astro, China
bbt = Hsiu-Ying Astro, China
bca = Hua-Shao-Ying Astro, China
bcb = Huai-an Astro, China
bcc = Huai-lai Astro, China
bcd = Huang River Commission (1936), China
bce = Huirangi, North Island, New Zealand
bcf = Hull Island, Phoenix Islands
bcg = Hun-chun, Manchuria
bch = Hun-shan System
bci = Hupeh, Arc 1, China
bcj = Hupeh, Arc 2, China
bck = Hupeh, Arc 3, China
bcl = Hupeh, Arc 4, China
bcm = Hupeh, Arc 5, China
bcn = Hupeh, Arc 6, China
bco = Hupeh, Arc 7, 8 and 9A, China
bcp = Hupeh, Arc 10 and 11, China
bcq = Hupeh, Arc 12 and 22, China
bcr = Hupeh, Arc 13 and 15A, China
bcs = Hupeh, Arc 14, China
bct = Hupeh, Arc 16, China
bda = Hupeh, Arc 17, China
bdb = Hupeh, Arc 18, China
bdc = Hupeh, Arc 19, China
bdd = Hupeh, Arc 19A, China
bde = Hupeh, Arc 20 and 21, China
bdf = Hupeh Local, China
bdg = Husdalen, Hopen Island
bdh = Husvik Astro, Antarctica
bdi = Hu-tzu-shan, Taiwan
bdk = I-chang Astro (South Base), China
bdl = I-chou Astro, China
bdm = I-Hsien Astro, China
bdn = I-shui Astro, China
bdo = Iben Astro 1947, Caroline Islands
bdp = Ikateq Astro 1945
bdq = Îlet à Cochons Flagstaff, Guadeloupe, Lesser Antilles
bdr = Iligan, Mindanao, Philippines
bds = Iloiolo, Panay, Philippines
bdt = Iman 1914, USSR
bea = Indian Datum, India
beb = Indian Datum 1916, India
bec = Indian Datum 1960, India
bed = Ireland 1965
bee = Irkutsk, USSR
bef = Ishigaki Shima Astro, Ryukyu Islands
beg = Ishpushta, Afghanistan
beh = Isla del Coco Astro
bei = Ists 973 Astro 1969
bej = Isolated Hill, South Island, New Zealand
bek = Itaembe-Mini, Argentina
bel = Italian Triang 1913-1914
bem = Itarare N Base Itajuba, Brazil
ben = Iwo Jima, Bonin Islands
beo = Jabal and Dukhan, Bahrain Island
bep = Jaragua, Brazil
beq = Jazirat Yaz (RAF Petrol Tank), Sir Bani Yas Island, Trucial States
ber = Jesselton, North Borneo, Malaysia
bes = Jesuit College Flagstaff, Belize, British Honduras
bet = Jo-ch'i Astro, China
bfa = Johnston Island 1961 Datum, Johnston Island
bfb = Johnston Origin, Northern Territory Australia
bfc = Juing-ch'eng Astro, China
bfd = Jung-shui Astro, China
bfe = Jurinet-2, Greater Antilles
bff = Kaarappu Triangulation Point F-6 (1918), Ant Atoll, Caroline Islands
bfg = Kalianpur Datum, Pakistan/India
bfh = Kalianpur Hill Station (National Geodetic Origin), India/Pakistan
bfi = Kandalaksha-St John S Church, USSR
bfj = Kandawala Datum, Ceylon
bfk = Kandilli, Turkey
bfl = Kantara, Cyprus
bfm = Kapingamarangi Astronomic Station No.3 (1951), Kapingamarangi Atoll,
Caroline Islands
bfn = Karamea, South Island, New Zealand
bfo = Karpinsk, USSR
bfp = Kasalinsk, USSR
bfq = Kashizan Datum, Taiwan
bfr = Katanga, Zaire
bfs = Kauai
bft = Kavieng Astro, New Ireland, Bismarck Archipelago
bga = KCS2, Sierra Leone
bgb = Kenya Colony, Uganda (Rainsford 1948) Datum
bgc = Kertau, Malaysia
bgd = Kertau 1948 revised, Malaysia
bge = Kertau (Everest) Datum, Malaysia
bgf = Kertau (Repsold System) Malaysia (West)
bgg = Kesztej (Marosvasarhely), Hungary
bgh = Khao Luang, Thailand
bgi = Khartoum, Sudan
bgj = Kieta Astro, Bougainville, Solomon Islands
bgk = Kili Island Observation Spot, Kili Island,
Marshall Islands
bgl = Kloster Ivaniæ, Yugoslavia
bgm = Kobukutei, Pescadores
bgn = Koepang, Timor, Indonesia |
bgo = Koh-I-Malik Siah, Pakistan
bgp = Kogo, Rio Muni, Spanish Guinea
bgq = Koiaris Astro 1947, Bougainville, Solomon Islands
bgr = Koiterangi, South Island, New Zealand
bgs = Korla Astro, China
bgt = Koror Observation Point, Koror Island, Caroline Islands
bha = Kos Forst (Coo-castello), Kos, Dodecanese, Greece
Koshizan see Hu-tzu-shan (bdi)
bhb = Kostroma, USSR
bhc = Kowloon Observatory, Hong Kong
bhd = K'uei'tao, China
bhe = Ku-yuan, China
bhf = Kuan-hsiang Shan, China
bhg = Kuching Survey Origin, Sarawak, Malaysia
bhh = Kulusuk, Greenland
bhi = Kuo'hsien Astro, China
bhj = Kusaie Astronomic Station 3 (1951), Kusaie Island, Caroline Islands
bhk = Kutaka, Okinawa, Ryukyu Islands
bhl = Kuybyshev-Orsk, USSR
bhm = Kwajalein Astronomical Position US Navy 1944, Marshall Islands
bhn = Kwangsi Province, China
bho = Kwangtung, China
bhp = Kweiyang, China
bhq = Kyushu West, Japan
bhr = Kyustendil, Bulgaria
bhs = La Canoa
bht = Lago Belgrano SB, Argentina
bia = Lago Palena SB, Argentina
bib = Lai-yang Astro, China
bic = Lamotrek Astronomic Station (1951), Lamotrek Atoll, Caroline Islands
bid = Latvian, Latvia
bie = Le Pouce, Mauritius
bif = Lee No 7 (Butler 1911-1913), Guam, Mariana Islands
big = Legaspi, Luzon, Philippines
bih = Leigon Pillar (GCS no 121), Accra, Ghana
bii = Lemuta, Samoa Islands
bij = Leninsk (Kol Chugino), USSR
bik = Leros (Lero-Pandelli), Dodecanese
bil = Leste NE Base, Brazil
bim = Leuen Anchorage Observation Spot, Namu Atoll, Marshall Islands
bin = Lib Island NW Edge, Marshall Islands
bio = Li-ching Astro, China
bip = Li-shih Astro, China
biq = Liberia 1964 (Roberts Field Astro)
bir = Liberian Government, Liberia
bis = Limones Cuba, Greater Antilles
bit = Lin-ch'ing Astro, China
bja = Lindis Peak, South Island, New Zealand
bjb = Line Island Astro, Line Islands
bjc = Lisbon, (Castelo Di São Jorge), Portugal
bjd = Listvenichnoye, USSR
bje = Little San Salvador Light, Bahamas
bjf = Liu-k'o'tao, China
bjg = Lobito Base NE End, Angola
bjh = Lochmaben Astronomical Station, Tasmania
bji = Loma Quintana, Venezuela
Lommel Signal see Belgian 1950 System (ahr)
Longitude, Christmas Island see Beacon, Christmas Island (ahp)
bjj = Longitude, Mariana Islands
bjk = Lourenço Marques Observatory, Mozambique
bjl = Losap Astronomic Station B3 (1924), Losap Atoll, Caroline Islands
bjm = Losuia, Kiriwina Island, Caroline Islands
bjn = Lotj Island Observation Spot, Lae Atoll, Marshall Islands
bjo = Loudima, Congo (Brazzaville)
bjp = Lu-chi Astro, China
bjq = Le-feng Base East End, China
bjr = Lu-kou'ch lao Astro, China
bjs = Lung'i'ou Astro, China
bjt = Lung-kuan Astro, China
bka = Luzon Datum, Philippines
bkb = Maccio Air Navigation Light (IAGS), Brazil
bkc = Macuco, Brazil
bkd = Madagascar Datum, Madagascar
bke = Madeira Archipelago
bkf = Medeira, Brazil
bkg = Madrid 1853, Spain
bkh = Magreva Island Base North End, Gambier Island, Tuamotu Archipelago
bki = Mahon 1928, Argentina
bkj = Mai, Lucipari Island, Indonesia
bkk = Majuro Astronomic Station 1944, Marshall Islands
bkl = Malayan Revised Datum, Malaysia (West)
bkm = Malta Datum, Malta Island
bkn = Man Island Light, Bahamas
bko = Manchurian Principal System, Manchuria
bkp = Mandinga Astro, Ecuador
bkq = Maniagassa Island Astro Pier (1944), Mariana Islands
bkr = Manira
bks = Manokwari, West Irian
bkt = Mañon (Old), Argentina
bla = Manton Triangulation Point F2 (1918), Senyavin Island, Caroline Islands
blb = Manton Observation Spot, Molik Atoll, Caroline Islands
blc = Marcus Astro 1961
bld = Marcus Astro 1965
ble = Marosvasarhely, Hungary
blf = Martín García, Argentina
blg = Masira Island Astro, 1958
blh = Massoua, (Eritrea), Ethiopia
bli = Matsu Datum, Matsu Island
blj = Matsuwa Astro, Kuril Islands
blk = Matupi Astro 1947, New Britain, Bismark Archipelago
bll = Maug 1950 71st Esld, Maug Island, Mariana Islands
blm = Maurice Datum, Australia
bln = Mayo de Campo, Argentina
blo = McKean Island, Phoenix Islands
blp = McMurdo Camp Area, Antarctica
blq = Medinella 29th Engr Astro (1961), Mariana Islands
blr = Mejit Astronomic Station B1 (1919), Mejit Island, Marshall Islands
bls = Melbourne Observatory, Victoria, Australia
blt = Mellu Island Triangulation Station, Marshall Islands
bma = Mellu Island Triangulation Station and Ringelap Island Observation
Spot, Marshall Islands
bmb = Merchich, Morocco
bmc = Mercury (Fischer 1960) Datum
bmd = Meºedag, Turkey
bme = Mi-shan I, Manchuria
bmf = Mi-shan II, Manchuria
bmg = Midway Astro 1961
bmh = Miguelete N, Argentina
bmi = Mildura Aerodrome, Victoria, Australia
bmj = Militar, Argentina
bmk = Minna, Nigeria
bml = Misamis, Mindanao, Philippines
bmm = Misurata Marina, Libya
bmn = Miyako Jima Astro, Ryukyu Islands
bmo = Moçãmedes, Angola
bmp = Modified Mercury (Fischer 1968)
bmq = Mogadiscio, Somalia
bmr = Molinduko, Kenya
bms = Mombassa, Kenya
bmt = Monavatu, Viti Levu Island, Fiji Islands
bna = Montjong Lowe Datum, Sulawesi, Indonesia
bnb = Monte das Mocas Datum, Faial and Terceira Islands, Azores
Monte Mario Datum, Italy see Monte Mario 1940 (bnd)
bnc = Monte Mario 1875, Rome, Italy
bnd = Monte Mario 1940, Rome, Italy
bne = Morro de Papagaio, Principe Island
bnf = Morro de Santo Antonio, Brazil
bng = Moscow University Obs, USSR
bnh = Mösting "A" 1960, Moon
bni = Moulin Jarry, Guadeloupe, Lesser Antilles
bnj = Mount Rapid, Fleurien Peninsula, South Australia
bnk = Mozambique, Mozambique
bnl = Mt Campbell, Australia
bnm = Mt Cook, South Island, New Zealand
bnn = Mt Eden, North Island, New Zealand
bno = Mt Eleanor, South Island, New Zealand
bnp = Mt Horrible, South Island, New Zealand
bnq = Mt Nicholas, South Island, New Zealand
bnr = Mt Pleasant, South Island, New Zealand
bns = Mt Robertson, Malaysia (East)
bnt = Mt Stewart, North Island, New Zealand
bnu = Monte Verde 1951, Cape Verde Islands
boa = Mt York, South Island, New Zealand
bob = Murilo Astronomic Station No. 19 (1951), Murilo Atoll, Caroline Islands
boc = M79, Iraq
bod = Nahrwan Datum, Iraq
boe = Namoluk Astronomic Station (1924), Namoluk Atoll, Caroline Islands
bof = Nan-ao'tao Astro, China
bog = Nanking Astro, China
boh = Nanking Datum 1960, China
boi = Naparima Datum, Trinidad and Tobago
New (1960) Arc see Arc (of the 30th Meridian) 1960 Datum (adi)
boj = New British, Great Britain
bok = New Bulgarian, Bulgaria
bol = New Danish System (Buddings Station I 620, Copenhagen) Denmark
bom = New French, France
bon = New Egyptian, Egypt (United Arab Republic)
boo = New Lighthouse, Tripoli, Libya
bop = New Pillar, Tanzania
boq = New Sahara Datum 1959
bor = New South Wales, Australia
bos = New Sydney Datum, Australia
bot = Ngatik Astronomic Station No. 8 (1951), Ngatik Atoll, Caroline Islands
bpa = Ngulu Astronomic Station No. 1 (1951), Ngulu Atoll, Caroline Islands
bpb = Nicolai, Copenhagen, Denmark
bpc = Nigeria Datum, Nigeria
bpd = Nikolayev, USSR
bpe = Nikolskoe Astro 1929
bpf = Niu-chiao'shan Astro, China
bpg = NMA/S/21 Azimuth Island, Antarctica
bph = NMA/S/39 Wilkes Station, Antarctica
bpi = Nomoi Astro, Nomoi Atoll, Caroline Islands
bpj = Nordlaguna, Jan Mayen Island
bpk = North American Datum
bpl = North American Datum 1913
bpm = North American Datum 1927
bpn = North Astro 1947
bpo = North Base Astro, Antarctica
bpp = North Point Entrance Island, Makin Atoll, Gilbert Islands
bpq = North Sahara Datum 1959
bpr = Northwest Point Astro, Bahamas
bps = Northwest Point Light, Bahamas
bpt = Noumea, New Caledonia
bqa = Numbuiloa, Vanau Levu Island, Fiji Islands
bqb = Oakam Yof Base, South End, Senegal
bqc = Observatoire d'Uccle, Belgium
bqd = Observatorio Astronomica de la Quinta Normal, Santiago, Chile
bqe = Observatorio Astronomico de Madrid, Spain
bqf = Observatorio da Comissão, Brazil
bqg = Observatorio National do Rio De Janeiro, Brazil
bqh = Observatorul Astronomic Militar Din Bucuresti (Dealul Pisc), Rumania
bqi = Observation Point, South Island, New Zealand
bqj = Observation Spot Bairiki Island, Tarawa Atoll, Gilbert Islands
bqk = Observation Spot, South Island, New Zealand
bql = Observation Spot Government Office, Kariatebike, Abemama Island,
Gilbert Islands
bqm = Observation Spot (Taruia Pass) Tongareva Island, Cook Islands
bqn = Ocotopeque, Guatemala
bqo = Okinawa Datum 1927, Okinawa Island, Ryukyu Islands
bqr = Okino-daito-shima Astro, Daito Islands, Ryukyu Islands
bqs = Old British (Greenwich Observatory), Great Britain and Ireland
bqt = Old Egyptian, Egypt (United Arab Republic)
bra = Old Hawaiian Datum, Hawaiian Islands
brb = Old Lighthouse, Tripoli, Libya
brc = Old Sydney Datum, New South Wales, Australia
brd = Opaki, North Island, New Zealand
bre = Oranhada Astro, China
brf = Oranharaga-byo Astro, China
brg = Oranjaran-byo Astro, China
brh = Ordnance Survey of Great Britain (1936) Datum
bri = Orenburg Cossacks
brj = Ormoc, Leyte, Philippines
brk = Oroluk Astronomic Station No. 1 (1951), Oroluk Atoll, Caroline islands
brl = Orsk, USSR
brm = Osh, USSR
brn = Oslo Observatory (Old), Norway
bro = Osuihe Astro, China
brp = Padang Base West End, Sumatra, Indonesia
brq = Paga Hill (1939), New Guinea
brs = Pagan 1950 71st Esld, Pagan Island, Mariana Islands
brt = Pai-chieh'shan Lighthouse, China
bsa = Pai-ling-miao Astro, China
bsb = Palau Astro, Caroline Islands
bsc = Palermo, Argentina
bsd = Palestine 1928, Israel/Jordan
bse = Palmer Astro
bsf = Panamá-Colón, Panama
bsg = Pandeli, Léros, Deodecanese, Greece
bsh = Panthéon, Paris, France
bsi = Pao-tou-Astro, China
bsj = Papatachi 1949, New Zealand
bsk = Papeete Astronomical Pier, Tahiti, Society Islands
bsl = Paraguari Base S End, Paraguay
bsm = Paraná, Argentina
bsn = Parapara, South Island, New Zealand
bso = Parece Vela Astronomic Point, Parece Vela (Douglas Reef)
bsp = Pency, Czechoslovkia
bsq = Pei-ching, China
bsr = Pei-king System 1954, China
bss = Pei-li Astro (1940), China
bst = Pei-ping, China
bta = Pei-ping 1954 System, China
btb = Pelarang, Kalimantan, Indonesia
btc = Pen Phare, Vietnam
btd = Pepito, Bolivia
bte = Perak, Kedah, Malaysia (West)
btf = Perth Observatory, Western Australia
btg = Perth 1899, Western Australia
bth = Pete Astro 1969, Zanzibar
bti = Phare d'Ayabele, Djibouti, French Somaliland
btj = Phare du Cap Blanc, Mauritania
btk = Phoenix Island, Phoenix Islands
btl = Pico de las Nieves, Gran Canaria, Canary Islands
btm = Pico de São Tomé, São Tomé Island
btn = Pico Norte
bto = Pidurutal Agala, Ceylon
btp = Pier Observation Spot, Fila Harbour, Efate Island, New Hebrides
btq = Pilar Astrónomico de Ponta Grossa, Brazil
btr = Pilar Astrónomico (S Paulo), Brazil
bts = Pilar de Observaciones de Puerto, Argentina
btt = Pilar do Forte, Brazil
caa = Pinder Point Light, Bahamas
cab = Pingelap Island Observation Spot, Pingelap Island, Caroline Islands
cac = Pintados SE Base, Chile
cad = P'ing-ti-ch Uan, China
cae = Pitcairn Astro 1967
caf = Plantation Point, Jervis Bay, Australian Capital Territory, Australia
cag = Point A Subcommission 5 Boundary Survey, Chile-Argentina
cah = Ponape Astro 1962
cai = Port Etienne, Mauritania
caj = Port Huon Hospital Bay Observation Spot, Tasmania
cak = Port Langdon South Base, Groote Eylandt, Northern Territory, Australia
cal = Port Lockroy
cam = Porto Santo Observatory, Madeira Islands
can = Poto Astro, Bolivia
cao = Potsdam (Helmertturm), Germany
cap = Poulo Condore (Con Son), Vietnam
caq = Pronto Socorro, Brazil
car = Provisional Chilean 1963
cas = Provisional National, Australia
cat = Provisional South American 1956 Datum
cba = Puerto Rico Datum, Puerto Rico, Greater Antilles
cbb = Pulap Astronomic Station No. B1 (1920), Pulap Atoll, Caroline Islands
cbc = Pulkovo 1913 System, USSR
cbd = Pulkovo 1932 System, USSR
cbe = Pulkovo 1942 System, USSR
cbf = Punaavia Base North End, Tahiti, Society Islands
cbg = Puntarenas, Costa Rica
cbh = P2 Point, Ile des Petrels, Adelie Land, Antarctica
cbi = Quito Observatorio, Ecuador
cbj = Qornoq Datum, Greenland
cbk = Ramakure-Byo Astro, China
cbl = Ra usuva, Viti Levu Island, Fiji Islands
cbm = Reconnaissance Triangulation, Morocco
cbn = Red Bridge Astronomic Station, China
cbo = Residence Flagstaff, Margarava Island, Gambier Islands
cbp = Reval (Tallin), Estonia
cbq = Reykjavik, Iceland
cbr = Riga Petera Baznica (St Peter S Church, Riga) Latvia
cbs = Rikuraru (Emijwan) Island Triangulation Station and Likiep Island
South Pass Reef Triangulation Station, Likiep Atoll, Marshall Islands
cbt = Rio Benito, Rio Muni, Spanish Guinea
Roma Monte Mario 1875 see Monte Mario, 1875, Rome (bnc)
Roma Monte Mario 1940 see Monte Mario, 1940, Rome (bnd)
cca = Rongelap Island Observation Spot, Marshall Islands
ccb = Rongelap 1959 Datum, Marshall Islands
ccc = Rota 1950 71 Esld, Rota Island, Mariana Islands
ccd = Royal Alfred Obsv, Mauritania
cce = Royal Government of Afghanistan (RGA)
ccf = Rube Point Observation Spot, Ebo Atoll, Marshall Islands
ccg = Rum Cay Light, Bahamas
cch = Sainte Anne I, Guadeloupe, Lesser Antilles
cci = Saipan Astro US Navy 1944, Saipan Island, Mariana Islands
ccj = Sakura-dai I, Manchuria
cck = Sakura-dai II, Manchuria
ccl = Sakura-dai III, Manchuria
ccm = Sama Base, Peru
ccn = Samana Fort, Dominican Republic, Greater Antilles
cco = Samate, Salawati Island, West Irian
ccp = Santa Maria-GS-8, Grenada, Lesser Antilles
ccq = Santa Maria Light, Bahamas
ccr = San Fernando Observatory, Spain
ccs = San Miguel Astro, Ecuador
cct = San-tsao Tao Astro, China
cda = San-ya Astro (1940), China
cdb = São Braz, São Miguel and Santa Maria, Azores
Sapper Hill, Falkland Islands use cmp
cdc = Sarigan Astronomic Station (1921), Sarigan Island, Mariana Islands
cdd = Sarigan Astro 1964, Sarigan Island, Mariana Islands
cde = Schwarzeck, South West Africa
cdf = Seba, Sawu Island, Indonesia
cdg = Selwa, Arabia
cdh = Semaphore Mast Cayenne, French Guyana
cdi = Semaphore of Noumea (1935), New Caledonia
cdj = Semporna, Malaysia (East)
cdk = Shah-ho-chen Astro, China
cdl = Shan-hai-kuan Lighthouse, China
cdm = Shang-ch'uan Tao Astro, China
cdn = Shen'hsien Astro, China
Shinkyo see Manchurian Principal System (bko)
cdo = Shumushu Astro, Kuril Islands
cdp = Shun-i, China
cdq = Siamese, Thailand
cdr = Sierra Leone Datum, Sierra Leone
cds = Signal Goeland, Mauritania
cdt = Sin-do, Manchuria
cea = Sinyum, Pahang, Malaysia (West)
ceb = Smolensk Nikolai, USSR
cec = Socotra 1957
ced = Soke, Turkey
cee = Soldano Rock, Venezuela
cef = Sommet Tano, New Caledonia
ceg = South African, South Africa
ceh = South American 1969
cei = South Asia Datum
cej = South Point Light, Bahamas
cek = South Station, Tongatobu,Tonga Islands
cel = South Sumatra, Indonesia
cem = Southeast Island, Seychelles
cen = Spitzbergen
ceo = Stalingrad-Kasan, USSR
cep = Stockholm, Sweden
ceq = Stocking Island Astro, Bahamas
cer = Stringer Trig, Papua
ces = St Helena 1906
cet = St Louis, Senegal
cfa = St Matthew Astronomical Datum, Alaska
cfb = St Paul-St George 1944 Datum, Pribilof Islands, Alaska
cfc = St Petersburg, USSR
cfd = St Stephen S Turm, Vienna, Austria
cfe = Sui'hsien Astro, China
cff = Sui-yang, China
cfg = Sul SW Base, Brazil
cfh = Sumner Astro 1944, Caroline Islands
cfi = Survey Beacon SLS 28/57/107, Sierra Leone
cfj = Sverdlovsk, Vozneseniya Cathedral, USSR
cfk = Svobodnyy 1935 System, USSR
cfl = Sweetings Cay Light, Bahamas
cfm = Sydney Island, Phoenix Islands
cfn = Sydney Observatory, New South Wales, Australia
cfo = Szechwan, China
cfp = Table Hill, New Zealand
cfq = Ta-ch'ang-t'u Shan Astro, China
cfr = Ta-sha-kang, China
cfs = Tacloban, Leyte, Philippines
cft = Tai-lai I, Manchuria
cga = Tai-lai II, Manchuria
cgb = Tai-lai III, Manchuria
cgc = Tai-lai IV, Manchuria
cgd = Tai-lao VI, Manchuria
cge = Tai-ping-chiao, Manchuria
cgf = Taira Datum, Miyaka-Jima, Ryukyu Islands
cgg = Takowaka Island Observation Spot, Marshall Islands
cgh = Talalabad, Afghanistan
cgi = Tananarive Observatory Datum, Madagascar
cgk = Tanapag Harbor, Saipan, Mariana Islands
cgl = Tang-yang Astro, China
cgm = Tao-hua-pao Astro, China
cgn = Taongi Astro 1952
cgo = Taroa island Triangulation Station, Maloelap Atoll, Marshall Islands
cgp = Tashkent 1875 System, USSR
cgq = TCI, Trucial States
cgr = Te-an Astro, China
cgs = Tebun-Byo Astro, China
cgt = Termez Astro, USSR
cha = Ternate, Moluccas, Indonesia
chb = Testigos Astro, Venezuela
chc = Tete, Mozambique
chd = TG Soeadja (Hollandia), West Irian
che = Thorshavn, Faeroes
chf = Tien-wen-tien Astro, China
chg = Tiflis, USSR
chh = Timbalai 1936 Datum, Brunei, Borneo
chi = Timbalai 1938 Datum, Brunei, Borneo
chj = Timbalai 1948 Datum, Brunei, Borneo
chk = Tinian Control 1950, Mariana Islands
chl = Tiranë, Albania
chm = Tobruk, Libya
chn = T'o-k'o-t'o Astro, China
cho = Tokowa Island Observation Spot, Mili Atoll, Marshall Islands
chp = Tokyo Astronomical Observatory (Old) 1918, Japan
Tokyo Control see Approximate Tokyo Datum (ade)
Tokyo Control, Sakhalin see Approximate Tokyo Datum (ade)
chq = Tokyo Datum, Japan
Tokyo Observatory, Kuril Islands see Approximate Tokyo Datum (ade)
chr = To-lun, China
chs = Tomor 1961
cht = Toro, Uganda
cia = Towe Island Astro, Galapagos Islands, Ecuador
cib = Townsville, Queensland, Australia
cic = Transmit of Venus Station, Moqattam Hills, Cairo, Egypt (United Arab
Republic)
cid = Tres Barras Extremo NE da Base, Brazil
cie = Trig A (North Taieri Meridional Circuit), South Island, New Zealand
cif = Triangulation Pointe Noire 1950-57, Congo, Brazzaville
cig = Trig A (Hawke S Bay Meridional Circuit), North Island, New Zealand
cih = Trig A (Poverty Bay Meridional Circuit), North Island, New Zealand
cii = Trig E, South Island, New Zealand
cij = Trig E Maketu, North Island, New Zealand
cik = Trinidad Trigonometrical Survey Datum, Trinidad, Lesser Antilles
cil = Tripoli (New Lighthouse), Libya
cim = Truk Astro 1951, Truk Island, Caroline Islands
cin = Ts'ao'hsien Astro, China
cio = Tshinsenda Base NW End (Point A), Zaire
cip = Tsingtao Observatory, China
ciq = Tsitsihar (Lungkiang), Manchuria
cir = Tsun-hua Astro, China
cis = T'ung-chou, China
cit = T'ung-shan Astro (East Base), China
cja = Tu-lung, China
cjb = Tuhirangi, North Island, New Zealand
cjc = Tung-sha'tao Astro, China
cjd = Tung-shih Astro, China
cje = Tunheim, Bear Island
cjf = Tu-shih'kou Astro, China
cjg = Tutuila Astro 1962, Tutuila Islands, Samoa Islands
cjh = Ubajay (Old), Argentina
cji = Ubajay 1928, Argentina
cjk = Ujelang Island Observation Spot, Marshall Islands
cjl = Ulul Astronomic Station (1916) Namonuito Atoll, Caroline Islands
cjm = Umm Er Rus, Arabia
cjn = Unalaska Datum, Aleutian Islands, Alaska
cjo = Uruppu Astro, Kuril Islands
cjp = US Naval Surveys 1944, Gilbert Islands
cjq = US Standard Datum, USA
cjr = Usho Chart 5416 (1945), Minto Reef, Caroline Islands
cjs = Uspallata NE Base, Argentina
cjt = Vaitape Flatstaff, Borabora Island, Society Islands
cka = Val de Serra, Brazil
ckb = Valdez Datum, Alaska
ckc = Valentine, Western Australia
ckd = Valle Huemules EG, Argentina
cke = Vanguard Datum, USA
ckf = Varesmae (System 1937), Estonia
ckg = Vi Astro, St Vincent, Lesser Antilles
ckh = Victoria Lighthouse, Seychelles
cki = Victoria Peak, China
ckj = Vieux Fort, St Lucia, Lesser Antilles
ckk = Vigan, Luzon, Philippines
ckl = Villa Cisneros, Spanish Sahara
ckm = Voirol, Algeria
ckn = Volga River Triangulation
cko = Wabutima, Kiriwina Island, Trobriand Islands
ckp = Waigama Misool Flagstaff, West Irian
ckq = Wake Island Astro 1952
ckr = Wenang, Sulawesi, Indonesia
cks = West Base Astro, China
ckt = West Entrance Observation Spot, Canton Island, Phoenix Islands
cla = Weti, Pemba Island
clb = White Sands Datum, USA
clc = White Sea, USSR
cld = World Geodetic System 1960
cle = World Geodetic System 1966
clf = World Geodetic System 1972
clg = Wotje Island Observation Spot, Wotje Atoll, Marshall Islands
clh = Wu-ch'uan Astro, China
cli = Wu-lan-hua, China
clj = Wu-t'ai Astro, China
clk = XXIII Aratunga, Cook Islands
cll = Yacare, Uruguay
clm = Yang-hsien Astro, China
cln = Yang-lou-t Ung Astro, China
clo = Yang-p'u-chiang Astro, China
clp = Yang yuan Astro, China
clq = Yavin B, Argentina
clr = Yea Yama, Ryukyu Islands
cls = Yekaterinograd, USSR
clt = Yenikale, USSR
cma = Yenisey, USSR
cmb = Yeuh-chou Astro, China
cmc = Yof Astro 1967
cmd = Yu'hsien Astro, China
cme = Yu-shan Astro, China
cmf = Yukon Datum, Alaska/Yukon Territory
cmg = Yung-ch'eng Astro, China
cmh = Yung-yuan-Chiao, Manchuria
cmi = Yur Yev, USSR
cmj = Zagli, USSR
cmk = Zamboanga, Mindanao, Philippines
cml = Zapara Island, Venezuela
cmm = Zigida Astro, Liberia
cmn = Zvirblaiciai, Lithuania
cmo = Afgooye, Somalia
cmp = Sapper Hill, Falkland Islands
taa = Astronomically determined
Independent astronomic datum see Local (tab)
tab = Local
tac = Local astro
tad = No datum
tae = Other known horizontal datum
zzz = Other known horizontal datum |