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Geodetic CRS: ITRF97
Datum: International Terrestrial Reference Frame 1997
Ellipsoid: GRS 1980
Prime meridian: Greenwich
Data source: EPSG
Information source: Journal of Applied Geodesy 4 (2010) pp189-199 via Geoscience Australia, http://www.ga.gov.au/image_cache/GA19050.pdf
Revision date: 2023-01-12
Scope: Geodesy.
Remarks: RMS residuals 26mm N, 12mm E and 179mm up, maximum residuals 49mm N, 24mm E and 464mm up. Scale difference in ppb and scale difference rate in ppb/yr where 1/billion = 1E-9 or nm/m. Replaces 2001 transformation by Dawson and Steed, tfm code 6392.
Method: Time-dependent Coordinate Frame rotation (geocen)
Description: (0,)
Definition: OGC Well Known Text 2 (2019)
COORDINATEOPERATION["ITRF97 to GDA94 (2)", VERSION["GA-Aus 2010"], SOURCECRS[ GEODCRS["ITRF97", DYNAMIC[ FRAMEEPOCH[1997]], DATUM["International Terrestrial Reference Frame 1997", ELLIPSOID["GRS 1980",6378137,298.257222101, LENGTHUNIT["metre",1]]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], CS[Cartesian,3], AXIS["(X)",geocentricX, ORDER[1], LENGTHUNIT["metre",1]], AXIS["(Y)",geocentricY, ORDER[2], LENGTHUNIT["metre",1]], AXIS["(Z)",geocentricZ, ORDER[3], LENGTHUNIT["metre",1]], ID["EPSG",4918]]], TARGETCRS[ GEODCRS["GDA94", DATUM["Geocentric Datum of Australia 1994", ELLIPSOID["GRS 1980",6378137,298.257222101, LENGTHUNIT["metre",1]]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], CS[Cartesian,3], AXIS["(X)",geocentricX, ORDER[1], LENGTHUNIT["metre",1]], AXIS["(Y)",geocentricY, ORDER[2], LENGTHUNIT["metre",1]], AXIS["(Z)",geocentricZ, ORDER[3], LENGTHUNIT["metre",1]], ID["EPSG",4938]]], METHOD["Time-dependent Coordinate Frame rotation (geocen)", ID["EPSG",1056]], PARAMETER["X-axis translation",-14.63, LENGTHUNIT["millimetre",0.001], ID["EPSG",8605]], PARAMETER["Y-axis translation",-27.62, LENGTHUNIT["millimetre",0.001], ID["EPSG",8606]], PARAMETER["Z-axis translation",-25.32, LENGTHUNIT["millimetre",0.001], ID["EPSG",8607]], PARAMETER["X-axis rotation",-1.7893, ANGLEUNIT["milliarc-second",4.84813681109536E-09], ID["EPSG",8608]], PARAMETER["Y-axis rotation",-0.6047, ANGLEUNIT["milliarc-second",4.84813681109536E-09], ID["EPSG",8609]], PARAMETER["Z-axis rotation",0.9962, ANGLEUNIT["milliarc-second",4.84813681109536E-09], ID["EPSG",8610]], PARAMETER["Scale difference",6.695, SCALEUNIT["parts per billion",1E-09], ID["EPSG",8611]], PARAMETER["Rate of change of X-axis translation",-8.6, LENGTHUNIT["millimetres per year",3.16887651727315E-11], ID["EPSG",1040]], PARAMETER["Rate of change of Y-axis translation",0.36, LENGTHUNIT["millimetres per year",3.16887651727315E-11], ID["EPSG",1041]], PARAMETER["Rate of change of Z-axis translation",11.25, LENGTHUNIT["millimetres per year",3.16887651727315E-11], ID["EPSG",1042]], PARAMETER["Rate of change of X-axis rotation",1.6394, ANGLEUNIT["milliarc-seconds per year",1.53631468932076E-16], ID["EPSG",1043]], PARAMETER["Rate of change of Y-axis rotation",1.5198, ANGLEUNIT["milliarc-seconds per year",1.53631468932076E-16], ID["EPSG",1044]], PARAMETER["Rate of change of Z-axis rotation",1.3801, ANGLEUNIT["milliarc-seconds per year",1.53631468932076E-16], ID["EPSG",1045]], PARAMETER["Rate of change of Scale difference",0.007, SCALEUNIT["parts per billion per year",3.16887651727315E-17], ID["EPSG",1046]], PARAMETER["Parameter reference epoch",1994, TIMEUNIT["year",31556925.445], ID["EPSG",1047]], OPERATIONACCURACY[0.18], USAGE[ SCOPE["Geodesy."], AREA["Australia - onshore and offshore to 200 nautical mile EEZ boundary. Includes Lord Howe Island, Ashmore and Cartier Islands."], BBOX[-47.2,109.23,-8.88,163.2]], ID["EPSG",6279], REMARK["RMS residuals 26mm N, 12mm E and 179mm up, maximum residuals 49mm N, 24mm E and 464mm up. Scale difference in ppb and scale difference rate in ppb/yr where 1/billion = 1E-9 or nm/m. Replaces 2001 transformation by Dawson and Steed, tfm code 6392."]]
Definition: JavaScript (Proj4js)
proj4.defs("EPSG:6279","+proj=helmert +x=-0.01463 +y=-0.02762 +z=-0.02532 +rx=-0.0017893 +ry=-0.0006047 +rz=0.0009962 +s=0.006695 +dx=-0.0086 +dy=0.00036 +dz=0.01125 +drx=0.0016394 +dry=0.0015198 +drz=0.0013801 +ds=7e-06 +t_epoch=1994 +convention=coordinate_frame");
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "Transformation", "name": "ITRF97 to GDA94 (2)", "source_crs": { "type": "GeodeticCRS", "name": "ITRF97", "datum": { "type": "DynamicGeodeticReferenceFrame", "name": "International Terrestrial Reference Frame 1997", "frame_reference_epoch": 1997, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Geocentric X", "abbreviation": "X", "direction": "geocentricX", "unit": "metre" }, { "name": "Geocentric Y", "abbreviation": "Y", "direction": "geocentricY", "unit": "metre" }, { "name": "Geocentric Z", "abbreviation": "Z", "direction": "geocentricZ", "unit": "metre" } ] }, "id": { "authority": "EPSG", "code": 4918 } }, "target_crs": { "type": "GeodeticCRS", "name": "GDA94", "datum": { "type": "GeodeticReferenceFrame", "name": "Geocentric Datum of Australia 1994", "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Geocentric X", "abbreviation": "X", "direction": "geocentricX", "unit": "metre" }, { "name": "Geocentric Y", "abbreviation": "Y", "direction": "geocentricY", "unit": "metre" }, { "name": "Geocentric Z", "abbreviation": "Z", "direction": "geocentricZ", "unit": "metre" } ] }, "id": { "authority": "EPSG", "code": 4938 } }, "method": { "name": "Time-dependent Coordinate Frame rotation (geocen)", "id": { "authority": "EPSG", "code": 1056 } }, "parameters": [ { "name": "X-axis translation", "value": -14.63, "unit": { "type": "LinearUnit", "name": "millimetre", "conversion_factor": 0.001 }, "id": { "authority": "EPSG", "code": 8605 } }, { "name": "Y-axis translation", "value": -27.62, "unit": { "type": "LinearUnit", "name": "millimetre", "conversion_factor": 0.001 }, "id": { "authority": "EPSG", "code": 8606 } }, { "name": "Z-axis translation", "value": -25.32, "unit": { "type": "LinearUnit", "name": "millimetre", "conversion_factor": 0.001 }, "id": { "authority": "EPSG", "code": 8607 } }, { "name": "X-axis rotation", "value": -1.7893, "unit": { "type": "AngularUnit", "name": "milliarc-second", "conversion_factor": 4.84813681109536e-09 }, "id": { "authority": "EPSG", "code": 8608 } }, { "name": "Y-axis rotation", "value": -0.6047, "unit": { "type": "AngularUnit", "name": "milliarc-second", "conversion_factor": 4.84813681109536e-09 }, "id": { "authority": "EPSG", "code": 8609 } }, { "name": "Z-axis rotation", "value": 0.9962, "unit": { "type": "AngularUnit", "name": "milliarc-second", "conversion_factor": 4.84813681109536e-09 }, "id": { "authority": "EPSG", "code": 8610 } }, { "name": "Scale difference", "value": 6.695, "unit": { "type": "ScaleUnit", "name": "parts per billion", "conversion_factor": 1e-09 }, "id": { "authority": "EPSG", "code": 8611 } }, { "name": "Rate of change of X-axis translation", "value": -8.6, "unit": { "type": "LinearUnit", "name": "millimetres per year", "conversion_factor": 3.16887651727315e-11 }, "id": { "authority": "EPSG", "code": 1040 } }, { "name": "Rate of change of Y-axis translation", "value": 0.36, "unit": { "type": "LinearUnit", "name": "millimetres per year", "conversion_factor": 3.16887651727315e-11 }, "id": { "authority": "EPSG", "code": 1041 } }, { "name": "Rate of change of Z-axis translation", "value": 11.25, "unit": { "type": "LinearUnit", "name": "millimetres per year", "conversion_factor": 3.16887651727315e-11 }, "id": { "authority": "EPSG", "code": 1042 } }, { "name": "Rate of change of X-axis rotation", "value": 1.6394, "unit": { "type": "AngularUnit", "name": "milliarc-seconds per year", "conversion_factor": 1.53631468932076e-16 }, "id": { "authority": "EPSG", "code": 1043 } }, { "name": "Rate of change of Y-axis rotation", "value": 1.5198, "unit": { "type": "AngularUnit", "name": "milliarc-seconds per year", "conversion_factor": 1.53631468932076e-16 }, "id": { "authority": "EPSG", "code": 1044 } }, { "name": "Rate of change of Z-axis rotation", "value": 1.3801, "unit": { "type": "AngularUnit", "name": "milliarc-seconds per year", "conversion_factor": 1.53631468932076e-16 }, "id": { "authority": "EPSG", "code": 1045 } }, { "name": "Rate of change of Scale difference", "value": 0.007, "unit": { "type": "ScaleUnit", "name": "parts per billion per year", "conversion_factor": 3.16887651727315e-17 }, "id": { "authority": "EPSG", "code": 1046 } }, { "name": "Parameter reference epoch", "value": 1994, "unit": { "type": "TimeUnit", "name": "year", "conversion_factor": 31556925.445 }, "id": { "authority": "EPSG", "code": 1047 } } ], "accuracy": "0.18", "scope": "Geodesy.", "area": "Australia - onshore and offshore to 200 nautical mile EEZ boundary. Includes Lord Howe Island, Ashmore and Cartier Islands.", "bbox": { "south_latitude": -47.2, "west_longitude": 109.23, "north_latitude": -8.88, "east_longitude": 163.2 }, "id": { "authority": "EPSG", "code": 6279 }, "remarks": "RMS residuals 26mm N, 12mm E and 179mm up, maximum residuals 49mm N, 24mm E and 464mm up. Scale difference in ppb and scale difference rate in ppb/yr where 1/billion = 1E-9 or nm/m. Replaces 2001 transformation by Dawson and Steed, tfm code 6392." }
Definition: MapServer - MAPfile
PROJECTION "proj=helmert" "x=-0.01463" "y=-0.02762" "z=-0.02532" "rx=-0.0017893" "ry=-0.0006047" "rz=0.0009962" "s=0.006695" "dx=-0.0086" "dy=0.00036" "dz=0.01125" "drx=0.0016394" "dry=0.0015198" "drz=0.0013801" "ds=7e-06" "t_epoch=1994" "convention=coordinate_frame" END
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=helmert +x=-0.01463 +y=-0.02762 +z=-0.02532 +rx=-0.0017893 +ry=-0.0006047 +rz=0.0009962 +s=0.006695 +dx=-0.0086 +dy=0.00036 +dz=0.01125 +drx=0.0016394 +dry=0.0015198 +drz=0.0013801 +ds=7e-06 +t_epoch=1994 +convention=coordinate_frame"> <Layer srs="+proj=helmert +x=-0.01463 +y=-0.02762 +z=-0.02532 +rx=-0.0017893 +ry=-0.0006047 +rz=0.0009962 +s=0.006695 +dx=-0.0086 +dy=0.00036 +dz=0.01125 +drx=0.0016394 +dry=0.0015198 +drz=0.0013801 +ds=7e-06 +t_epoch=1994 +convention=coordinate_frame"> </Layer> </Map>
Definition: SQL (PostGIS)
INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 6279, 'EPSG', 6279, '+proj=helmert +x=-0.01463 +y=-0.02762 +z=-0.02532 +rx=-0.0017893 +ry=-0.0006047 +rz=0.0009962 +s=0.006695 +dx=-0.0086 +dy=0.00036 +dz=0.01125 +drx=0.0016394 +dry=0.0015198 +drz=0.0013801 +ds=7e-06 +t_epoch=1994 +convention=coordinate_frame', 'None');
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