More Geodetic Datums and user Grids

This is a collection of Geodetic Datums and user grid definitions, prepared for GARtrip. Just append the suitable text line to your file DATUM.INI, or download the complete extended file. If you don't find what you need, please ask the author.

Africa:
ARC-1960, -112.145,-0.000054750714, -160, -8, -300

Datum and Grid for Argentina (corrected with grid zones 05-NOV-2001):
Campo Inchauspe, -251, -0.000014192702, -148, 136, 90
#Argentina 1, Campo Inchauspe, -72, -90, 1, 1500000, 0
#Argentina 2, Campo Inchauspe, -69, -90, 1, 2500000, 0
#Argentina 3, Campo Inchauspe, -66, -90, 1, 3500000, 0
#Argentina 4, Campo Inchauspe, -63, -90, 1, 4500000, 0
#Argentina 5, Campo Inchauspe, -60, -90, 1, 5500000, 0
#Argentina 6, Campo Inchauspe, -57, -90, 1, 6500000, 0
#Argentina 7, Campo Inchauspe, -54, -90, 1, 7500000, 0

Australia:
AGD66, -23, -0.000000081204, -133, -48, 148
AGD84, -23, -0.000000081204, -134, -48, 149
For the new datum GDA94, there are two definitions. The older and unreferenced one is:
GDA94, -23, -0.000000081204, -5, 5, 4
while newer sources say that it is almost identical to WGS84 for GPS precision. Sou you should select WGS84 instead. If you prefer to see the datum name GDA94, enter this definition line:
GDA94, 0, 0, 0, 0, 0

Datum and Grid zones for Austria: (Datum values updated 22-APR-03)
MGI Austria, 739.845, 0.000010037483, 596, 87, 473
#Österreich M28,MGI Austria, 10.333333333, 0, 1, 150000, -5000000
#Österreich M31,MGI Austria, 13.333333333, 0, 1, 450000, -5000000
#Österreich M34,MGI Austria, 16.333333333, 0, 1, 750000, -5000000

Bahrain and Saudi Arabia:
Ain El Abd 70, -251, -0.000014192702, -150, -251, -2

Brazil:
Corrego Alegre, -251, -0.000014192702, -209, 172, -6
SAD69,-23,-0.000000081204,-60,-2,-41

All-numeric version of British Grid:
#(GB) British numeric,Ord Srvy GB,-2,49,0.9996,400000,-100000

New Zealand:
besides the built-in New Zealand grid, there is a new New Zealand Transverse Mercator grid (NZTM):
#New Zealand TM,WGS-84,173,0,0.9996,1600000,10000000

North America:
NAD27 Canada,-69.4,-0.000037264639,-10,158,187
NAD83, 0, -0.000000000016, 0, 0, 0
NAD27 Alaska,-69.4,-0.000037264639,-5,135,172
NAD27 Central,-69.4,-0.000037264639, 0,125,194
NAD27 CONUS,-69.4,-0.000037264639,-8,160,176
NAD27 Mexico,-69.4,-0.000037264639,-12,130,190

Finland:
Finland Hayford,-251,-0.000014192702,-78,-231,-97
#Finnish KKJ 1,Finland Hayford, 21, 0, 1, 1500000, 0
#Finnish KKJ 2,Finland Hayford, 24, 0, 1, 2500000, 0
#Finnish KKJ 3,Finland Hayford, 27, 0, 1, 3500000, 0
#Finnish KKJ 4,Finland Hayford, 30, 0, 1, 4500000, 0

Iceland:
Hjorsey 1955,-251,-0.000014192702,-73,46,-86

For Israel two versions of a dedicated grid are reproted:
Israel,-163,-0.00005439085,-235,-85,264
#Israel,Israel,35.21208333,0,1,170251,614750
#Israel2,Israel,35.21208333,31.73409,1,170251,1126868

Datum and Grid zones for Italy:
Rome40, -251,-0.000014192702,-225,-65,9
#Gauss Boaga Italy(Ovest),Rome40,9,0,0.9996,1500000,0
#Gauss Boaga Italy(Est),Rome40,15,0,0.9996,2520000,0

Japan:
Tokyo, 739.845, 0.000010037483, -128, 481, 664

Luxembourg: LUxemburg REference Frame LUREF
LUREF,  -251, -0.000014192702, -265, 77, 21
#LUREF(Luxembourg), LUREF, 6.1666667, 49.8333333, 1, 80000, 100000

Netherlands: Rijksdriehoekmeting (RD)
RD, 740, 0.00001003748, 593, 26, 478
#(NL) TDN-RD Grid,RD, 005.38763, 0.0, 0.9999079, 155000.0, -5316592.0

New Zealand:
Geodetic'49, -251, -0.000014192702, 84, -22, 209

Philippines except Mindanao:
Luzon Philippines,-69.4,-0.000037264639,-133,-77,-51

Philippines Mindanao:
Luzon Mindanao,-69.4,-0.000037264639,-133,-79,-72

Russia:
Pulkowo1942,-108,0.000000480796,28,-130,-95

South Africa:
Cape, -112.145, -0.000054750714, -136, -108, -292

South America:
Prov S Am '56,-251,-0.000014192702,-288,175,-376

Spain, Canarian Islands:
Pico de las Nieves, -251, -0.000014192702, -307, -92, 127

Thailand:
Indian 1975, 860.655, 0.00002836136879, 210, 814, 289

For more Geodetic Datums and their backgrounds, see http://www.ASPRS.org/resources.html

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