;January. 4, 1999 Version 1.0 ; Changes: added ellipsoid table ; ;September 26, 1998 - as released ; ; ;Datum, Ellipsoid, Delta a, Delta f (* 10^4), Delta X, Delta Y, Delta Z. ; ;Delta parameters are with respect to WGS-84 parameters for conversion ;from the specified datum to WGS-84. ; ;Parameter Delta a is the WGS-84 Equatorial radius minus the specified ;datum Equatorial radius in meters. ; ;Parameter Delta f is the WGS-84 flattening minus the specified datum ;flattening multiplied by 10^4. ; ;Delta X, Y, Z parameters are WGS-84 X, Y, Z parameters minus the ;specified datum X, Y, Z in meters. ; ;The Delta X, Y, and Z parameters are added to the specified datum X, Y, ;Z to convert to WGS-84. ; ;The source for most of these parameters is Defense Mapping Agency ;Technical Report, Department of Defense World Geodetic System 1984, DMA ;TR 8350.2 Second Edition, 1 September 1991. ; ; The following table shows the radius, 1/f, delta a and delta 1/f for various ellipsoids ; ; name a 1/f WGS84a-a (da) ((WGS84f)-f)*1e4 (df) ; ======================== =========== =========== ============ ========================= ; Airy 1830 6377563.396 299.3249646 573.604 0.11960023 ; Modified Airy 6377340.189 299.3249646 796.811 0.11960023 ; Australian National 6378160.0 298.250 -23.0 -0.00081204 ; Bessel 1841 6377397.155 299.1528128 739.845 0.10037483 ; Clarke 1866 6378206.4 294.9786982 -69.4 -0.37264639 ; Clarke 1880 6378249.145 293.465 -112.145 -0.54750714 ; Everest (India 1830) 6377276.345 300.80170 860.655 0.28361368 ; Everest (1948) 6377304.063 300.80170 832.937 0.28361368 ; Modified Fischer 1960 6378155.0 298.3 -18.0 0.00480795 ; Everest (Pakistan) 6377309.613 300.80170 827.387 0.28361368 ; Indonesian 1974 6378160.0 298.247 -23.0 -0.00114930 ; GRS 80 6378137.0 298.257222101 0.0 -0.00000016 ; Helmert 1906 6378200.0 298.3 -63.0 0.00480795 ; Hough 1960 6378270.0 297.0 -133.0 -0.14192702 ; International 1924 6378388.0 297.0 -251.0 -0.14192702 ; Krassovsky 1940 6378245.0 298.3 -108.0 0.00480795 ; South American 1969 6378160.0 298.250 -23.0 -0.00081204 ; Everest (Malaysia 1969) 6377295.664 300.80170 841.336 0.28361368 ; Everest (Sabah Sarawak) 6377298.556 300.80170 838.444 0.28361368 ; WGS 72 6378135.0 298.260 2.0 0.00031211 ; WGS 84 6378137.0 298.257223563 0.0 0.0 ; Bessel 1841 (Namibia) 6377483.865 299.1528128 653.135 0.10037483 ; Everest (India 1956) 6377301.243 300.80170 835.757 0.28361368 ; Fischer 1960 (Mercury) 6378166.0 298.3 -29.0 0.00480795 ; Fischer 1968 6378150.0 298.3 -13.0 0.00480795 ; GRS 1967 6378160.0 298.247167427 -23.0 -0.00113048 ; WGS 66 6378145.0 298.250 -8.0 -0.00081204 ; WGS 60 6378165.0 298.3 -28.0 0.00480795 ; ;Datum, da, df, dx, dy, dz ARC-1950_mean,-112.145,-0.54750714,-143,-90,-294 ARC-1960_mean,-112.145,-0.54750714,-160,-8,-300 Adindan,-112.145,-0.54750714,-162,-12,206 Afgooye,-108.0,0.00480795,-43,-163,45 Ain_El_Abd_1970,-251.0,-0.14192702,-150,-251,-2 Alaska/Canada_NAD-27,-69.4,-0.37264639,-9,151,185 Alaska_(NAD-27),-69.4,-0.37264639,-5,135,172 Anna_1_Astro_1965,-23.0,-0.00081204,-491,-22,435 Arc_1950,-112.145,-0.54750714,-143,-90,-294 Arc_1960,-112.145,-0.54750714,-160,-8,-300 Ascension_Island_58,-251.0,-0.14192702,-207,107,52 Astro_B4_Sorol_Atoll,-251.0,-0.14192702,114,-116,-333 Astro_Beacon_E,-251.0,-0.14192702,145,75,-272 Astro_DOS_71/4,-251.0,-0.14192702,-320,550,-494 Astro_DOS_71/4,-251.0,-0.14192702,-320,550,-494 Astronomic_Stn_52,-251.0,-0.14192702,124,-234,-25 Australian_Geod_66,-23.0,-0.00081204,-133,-48,148 Australian_Geod_84,-23.0,-0.00081204,-134,-48,149 Australian_Geodetic_1984,-23.0,-0.00081204,-134,-48,149 Bahamas_(NAD-27),-69.4,-0.37264639,-4,154,178 Bellevue_(IGN),-251.0,-0.14192702,-127,-769,472 Bermuda_1957,-69.4,-0.37264639,-73,213,296 Bogota_Observatory,-251.0,-0.14192702,307,304,-318 Bukit_Rimpah,739.845,0.10037483,-384,664,-48 CH-1903,739.845,0.10037483,674,15,405 Camp_Area_Astro,-251.0,-0.14192702,-104,-129,239 Campo_Inchauspe,-251.0,-0.14192702,-148,136,90 Canada_Mean_(NAD27),-69.4,-0.37264639,-10,158,187 Canal_Zone_(NAD27),-69.4,-0.37264639,0,125,201 Canton_Astro_1966,-251.0,-0.14192702,298,-304,-375 Canton_Island_1966,-251.0,-0.14192702,298,-304,-375 Cape,-112.145,-0.54750714,-136,-108,-292 Cape_Canaveral,-69.4,-0.37264639,-2,150,181 Cape_Canaveral_mean,-69.4,-0.37264639,-2,150,181 Carribean_(NAD27),-69.4,-0.37264639,-7,152,178 Carthage,-112.145,-0.54750714,-263,6,431 Central_America_(NAD27),-69.4,-0.37264639,0,125,194 Chatham_1971,-251.0,-0.14192702,175,-38,113 Chua_Astro,-251.0,-0.14192702,-134,229,-29 Corrego_Alegre,-251.0,-0.14192702,-206,172,-6 Corrego_Alegre_(Provisional),-251.0,-0.14192702,-206,172,-6 Cuba_(NAD27),-69.4,-0.37264639,-9,152,178 Cyprus,-251.0,-0.14192702,-104,-101,-140 DOS_1968,-251.0,-0.14192702,230,-199,-752 Djakarta_(Batavia),739.845,0.10037483,-377,681,-50 Easter_Island_1967,-251.0,-0.14192702,211,147,111 Egypt,-251.0,-0.14192702,-130,-117,-151 European_1950,-251.0,-0.14192702,-87,-98,-121 European_1950_mean,-251.0,-0.14192702,-87,-98,-121 European_1979,-251.0,-0.14192702,-86,-98,-119 European_1979_mean,-251.0,-0.14192702,-86,-98,-119 Finland_Hayford,-251.0,-0.14192702,-78,-231,-97 Finnish_Nautical_Chart,-251.0,-0.14192702,-78,-231,-97 GUX_1_Astro,-251.0,-0.14192702,252,-209,-751 Gandajika_Base,-251.0,-0.14192702,-133,-321,50 Geodetic_Datum_49,-251.0,-0.14192702,84,-22,209 Ghana,0.0,0.0,0,0,0 Greenland_(NAD27),-69.4,-0.37264639,11,114,195 Guam_1963,-69.4,-0.37264639,-100,-248,259 Gunung_Segara,739.845,0.10037483,-403,684,41 Gunung_Serindung_1962,0.0,0.0,0,0,0 Herat_North,-251.0,-0.14192702,-333,-222,114 Hjorsey_1955,-251.0,-0.14192702,-73,46,-86 Hong_Kong_1963,-251.0,-0.14192702,-156,-271,-189 Hu-Tzu-Shan,-251.0,-0.14192702,-634,-549,-201 ISTS_073_Astro_69,-251.0,-0.14192702,208,-435,-229 Indian,860.655,0.28361368,289,734,257 Indian_Bangladesh,860.655,0.28361368,289,734,257 Indian_Thailand,860.655,0.28361368,214,836,303 Iran,-251.0,-0.14192702,-117,-132,-164 Ireland_1965,796.811,0.11960023,506,-122,611 Johnston_Island,-251.0,-0.14192702,191,-77,-204 Johnston_Island_61,-251.0,-0.14192702,191,-77,-204 Kandawala,860.655,0.28361368,-97,787,86 Kerguelen_Island,-251.0,-0.14192702,145,-187,103 Kertau_1948,832.937,0.28361368,-11,851,5 L.C._5_Astro,-69.4,-0.37264639,42,124,147 La_Reunion,-251.0,-0.14192702,94,-948,-1262 Liberia_1964,-112.145,-0.54750714,-90,40,88 Luzon,-69.4,-0.37264639,-133,-77,-51 Luzon_Mindanao,-69.400,-0.37264639,-133,-79,-72 Luzon_Philippines,-69.400,-0.37264639,-133,-77,-51 Mahe_1971,-112.145,-0.54750714,41,-220,-134 Marco_Astro,-251.0,-0.14192702,-289,-124,60 Masirah_Is._(Nahrwan),-112.145,-0.54750714,-247,-148,369 Massawa,739.845,0.10037483,639,405,60 Merchich,-112.145,-0.54750714,31,146,47 Mexico_(NAD27),-69.4,-0.37264639,-12,130,190 Midway_Astro_1961,-251.0,-0.14192702,912,-58,1227 Mindanao,-69.4,-0.37264639,-133,-79,-72 Minna,-112.145,-0.54750714,-92,-93,122 Montjong_Lowe,0.0,0.0,0,0,0 NAD27_Alaska,-69.400,-0.37264639,-5,135,172 NAD27_Bahamas,-69.400,-0.37264639,-4,154,178 NAD27_CONUS,-69.4,-0.37264639,-8,160,176 NAD27_Canada,-69.4,-0.37264639,-10,158,187 NAD27_Canal_Zone,-69.4,-0.37264639,0,125,201 NAD27_Caribbean,-69.4,-0.37264639,-7,152,178 NAD27_Central,-69.4,-0.37264639,0,125,194 NAD27_Cuba,-69.4,-0.37264639,-9,152,178 NAD27_Greenland,-69.400,-0.37264639,11,114,195 NAD27_Mexico,-69.4,-0.37264639,-12,130,190 NAD27_San_Salvador,-69.4,-0.37264639,1,140,165 NAD83,0.0,-0.00000016,0,0,0 Nahrwan,-112.145,-0.54750714,-231,-196,482 Nahrwn_Masirah_Ilnd,-112.145,-0.54750714,-247,-148,369 Nahrwn_Saudi_Arbia,-112.145,-0.54750714,-231,-196,482 Nahrwn_United_Arab,-112.145,-0.54750714,-249,-156,381 Naparima_BWI,-251.0,-0.14192702,-2,374,172 North_America_83,0.0,-0.00000016,0,0,0 North_America_1927_mean,-69.4,-0.37264639,-8,160,176 Observatorio_1966,-251.0,-0.14192702,-425,-169,81 Old_Egyptian,-63.0,0.00480795,-130,110,-13 Old_Hawaiian,-69.400,-0.37264639,61,-285,-181 Old_Hawaiian_Kauai,-69.4,-0.37264639,45,-290,-172 Old_Hawaiian_Maui,-69.4,-0.37264639,65,-290,-190 Old_Hawaiian_Oahu,-69.4,-0.37264639,56,-284,-181 Old_Hawaiian_mean,-69.4,-0.37264639,89,-279,-183 Oman,-112.145,-0.54750714,-346,-1,224 Ord_Srvy_Grt_Britn,573.604,0.11960023,375,-111,431 Ordnance_Survey_of_Great_Britain_36,573.604,0.11960023,375,-111,431 Pico_De_Las_Nieves,-251.0,-0.14192702,-307,-92,127 Pitcairn_Astro_1967,-251.0,-0.14192702,185,165,42 Potsdam_Rauenberg_DHDN,739.845,0.10037483,606,23,413 Prov_So_Amrican_56,-251.0,-0.14192702,-288,175,-376 Prov_So_Chilean_63,-251.0,-0.14192702,16,196,93 Provisional_South_American_1956_mean,-251.0,-0.14192702,-288,175,-376 Provisional_South_Chilean_1963,-251.0,-0.14192702,16,196,93 Puerto_Rico,-69.4,-0.37264639,11,72,-101 Pulkovo_1942,-108,0.00480795,28,-130,-95 Qatar_National,-251.0,-0.14192702,-128,-283,22 Qornoq,-251.0,-0.14192702,164,138,-189 Quatar_National,-251.0,-0.14192702,-128,-283,22 RT_90,739.845,0.10037483,498,-36,568 Reunion,-251.0,-0.14192702,94,-948,-1262 Rome_1940,-251.0,-0.14192702,-225,-65,9 S.E.Asia_(Indian),860.655,0.28361368,173,750,264 SAD-69/Brazil,-23.0,-0.00081204,-60,-2,-41 S_42,-108,0.00480795,28,-121,-77 Santa_Braz,-251.0,-0.14192702,-203,141,53 Santo_(DOS),-251.0,-0.14192702,170,42,84 Sao_Braz,-251.0,-0.14192702,-203,141,53 Sapper_Hill_1943,-251.0,-0.14192702,-355,16,74 Schwarzeck,653.135,0.10037483,616,97,-251 Sicily,-251.0,-0.14192702,-97,-88,-135 Sierra_Leone_1960,0.0,0.0,0,0,0 South_American_1969_mean,-23.0,-0.00081204,-57,1,-41 South_American_69,-23.0,-0.00081204,-57,1,-41 South_Asia,-18.0,0.00480795,7,-10,-26 Southeast_Base,-251.0,-0.14192702,-499,-249,314 Southwest_Base,-251.0,-0.14192702,-104,167,-38 Tananarive_Observatory_25,-251.0,-0.14192702,-189,-242,-91 Thai/Viet_(Indian),860.655,0.28361368,214,836,303 Timbalai_1948,860.655,0.28361368,-689,691,-46 Tokyo,739.845,0.10037483,-128,481,664 Tokyo_mean,739.845,0.10037483,-128,481,664 Tristan_Astro_1968,-251.0,-0.14192702,-632,438,-609 Unites_Arab_Emirates_(Nahrwan),-112.145,-0.54750714,-249,-156,381 Viti_Levu_1916,-112.145,-0.54750714,51,391,-36 WGS-72,2.0,0.0003121057,0,0,5 WGS-84,0.0,0.0,0,0,0 Wake-Eniwetok_60,-133.0,-0.14192702,101,52,-39 Yacare,-251.0,-0.14192702,-155,171,37 Zanderij,-251.0,-0.14192702,-265,120,-358