Geodetic CRS: ITRF94
Datum: International Terrestrial Reference Frame 1994
Ellipsoid: GRS 1980
Prime meridian: Greenwich
Data source: EPSG
Information source: International Earth Rotation Service (IERS) ftp://lareg.ensg.ign.fr/pub/itrf/ITRF.TP
Revision date: 2006-10-13
Scope: Geodesy.
Remarks: At epoch 1997.0. Rates dX=0.0000 m/yr, dy=0.0006 m/yr, dZ=0.0014 m/yr, rX=rY=0.0"/yr, rZ=-0.00002"/yr, dS=-0.00001 ppm/yr.
Method: Position Vector transformation (geog2D domain)
Area of use: World.
Description: (0,)
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.4/projjson.schema.json", "type": "Transformation", "name": "ITRF94 to ITRF2000 (1)", "source_crs": { "type": "GeodeticCRS", "name": "ITRF94", "datum": { "type": "DynamicGeodeticReferenceFrame", "name": "International Terrestrial Reference Frame 1994", "frame_reference_epoch": 1993, "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": 4916 } }, "target_crs": { "type": "GeodeticCRS", "name": "ITRF2000", "datum": { "type": "DynamicGeodeticReferenceFrame", "name": "International Terrestrial Reference Frame 2000", "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": 4919 } }, "method": { "name": "Position Vector transformation (geog2D domain)", "id": { "authority": "EPSG", "code": 9606 } }, "parameters": [ { "name": "X-axis translation", "value": -0.0067, "unit": "metre", "id": { "authority": "EPSG", "code": 8605 } }, { "name": "Y-axis translation", "value": -0.0061, "unit": "metre", "id": { "authority": "EPSG", "code": 8606 } }, { "name": "Z-axis translation", "value": 0.0185, "unit": "metre", "id": { "authority": "EPSG", "code": 8607 } }, { "name": "X-axis rotation", "value": 0, "unit": { "type": "AngularUnit", "name": "arc-second", "conversion_factor": 4.84813681109536e-06 }, "id": { "authority": "EPSG", "code": 8608 } }, { "name": "Y-axis rotation", "value": 0, "unit": { "type": "AngularUnit", "name": "arc-second", "conversion_factor": 4.84813681109536e-06 }, "id": { "authority": "EPSG", "code": 8609 } }, { "name": "Z-axis rotation", "value": 0, "unit": { "type": "AngularUnit", "name": "arc-second", "conversion_factor": 4.84813681109536e-06 }, "id": { "authority": "EPSG", "code": 8610 } }, { "name": "Scale difference", "value": -0.00155, "unit": { "type": "ScaleUnit", "name": "parts per million", "conversion_factor": 1e-06 }, "id": { "authority": "EPSG", "code": 8611 } } ], "accuracy": "0.0", "scope": "Geodesy.", "area": "World.", "bbox": { "south_latitude": -90, "west_longitude": -180, "north_latitude": 90, "east_longitude": 180 }, "id": { "authority": "EPSG", "code": 1937 }, "remarks": "At epoch 1997.0. Rates dX=0.0000 m/yr, dy=0.0006 m/yr, dZ=0.0014 m/yr, rX=rY=0.0\"/yr, rZ=-0.00002\"/yr, dS=-0.00001 ppm/yr." }
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=helmert +x=-0.0067 +y=-0.0061 +z=0.0185 +rx=0 +ry=0 +rz=0 +s=-0.00155 +convention=position_vector"> <Layer srs="+proj=helmert +x=-0.0067 +y=-0.0061 +z=0.0185 +rx=0 +ry=0 +rz=0 +s=-0.00155 +convention=position_vector"> </Layer> </Map>
Definition: OGC WKT 2 (2019)
COORDINATEOPERATION["ITRF94 to ITRF2000 (1)",VERSION["IERS"],SOURCECRS[GEODCRS["ITRF94",DYNAMIC[FRAMEEPOCH[1993]],DATUM["International Terrestrial Reference Frame 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",4916]]],TARGETCRS[GEODCRS["ITRF2000",DYNAMIC[FRAMEEPOCH[1997]],DATUM["International Terrestrial Reference Frame 2000",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",4919]]],METHOD["Position Vector transformation (geog2D domain)",ID["EPSG",9606]],PARAMETER["X-axis translation",-0.0067,LENGTHUNIT["metre",1],ID["EPSG",8605]],PARAMETER["Y-axis translation",-0.0061,LENGTHUNIT["metre",1],ID["EPSG",8606]],PARAMETER["Z-axis translation",0.0185,LENGTHUNIT["metre",1],ID["EPSG",8607]],PARAMETER["X-axis rotation",0,ANGLEUNIT["arc-second",4.84813681109536E-06],ID["EPSG",8608]],PARAMETER["Y-axis rotation",0,ANGLEUNIT["arc-second",4.84813681109536E-06],ID["EPSG",8609]],PARAMETER["Z-axis rotation",0,ANGLEUNIT["arc-second",4.84813681109536E-06],ID["EPSG",8610]],PARAMETER["Scale difference",-0.00155,SCALEUNIT["parts per million",1E-06],ID["EPSG",8611]],OPERATIONACCURACY[0.0],USAGE[SCOPE["Geodesy."],AREA["World."],BBOX[-90,-180,90,180]],ID["EPSG",1937],REMARK["At epoch 1997.0. Rates dX=0.0000 m/yr, dy=0.0006 m/yr, dZ=0.0014 m/yr, rX=rY=0.0""/yr, rZ=-0.00002""/yr, dS=-0.00001 ppm/yr."]]