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Geodetic CRS: ITRF2005
Datum: International Terrestrial Reference Frame 2005
Ellipsoid: GRS 1980
Prime meridian: Greenwich
Data source: EPSG
Information source: Boucher and Altamimi "Memo : Specifications for reference frame fixing in the analysis of a EUREF GPS campaign" (http://etrs89.ensg.ign.fr/memo-V8.pdf)
Revision date: 2019-07-17
Scope: Geodesy.
Remarks: Scale difference in ppb and scale difference rate in ppb/yr where 1/billion = 1E-9 or nm/m.
Method: Time-dependent Position Vector tfm (geocentric)
Description: (0,)
Definition: OGC Well Known Text 2 (2019)
COORDINATEOPERATION["ITRF2005 to ETRF2000 (1)", VERSION["EUREF-Eur 2000"], SOURCECRS[ GEODCRS["ITRF2005", DYNAMIC[ FRAMEEPOCH[2000]], DATUM["International Terrestrial Reference Frame 2005", 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",4896]]], TARGETCRS[ GEODCRS["ETRF2000", DATUM["European 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",7930]]], METHOD["Time-dependent Position Vector tfm (geocentric)", ID["EPSG",1053]], PARAMETER["X-axis translation",54.1, LENGTHUNIT["millimetre",0.001], ID["EPSG",8605]], PARAMETER["Y-axis translation",50.2, LENGTHUNIT["millimetre",0.001], ID["EPSG",8606]], PARAMETER["Z-axis translation",-53.8, LENGTHUNIT["millimetre",0.001], ID["EPSG",8607]], PARAMETER["X-axis rotation",0.891, ANGLEUNIT["milliarc-second",4.84813681109536E-09], ID["EPSG",8608]], PARAMETER["Y-axis rotation",5.39, ANGLEUNIT["milliarc-second",4.84813681109536E-09], ID["EPSG",8609]], PARAMETER["Z-axis rotation",-8.712, ANGLEUNIT["milliarc-second",4.84813681109536E-09], ID["EPSG",8610]], PARAMETER["Scale difference",0.4, SCALEUNIT["parts per billion",1E-09], ID["EPSG",8611]], PARAMETER["Rate of change of X-axis translation",-0.2, LENGTHUNIT["millimetres per year",3.16887651727315E-11], ID["EPSG",1040]], PARAMETER["Rate of change of Y-axis translation",0.1, LENGTHUNIT["millimetres per year",3.16887651727315E-11], ID["EPSG",1041]], PARAMETER["Rate of change of Z-axis translation",-1.8, LENGTHUNIT["millimetres per year",3.16887651727315E-11], ID["EPSG",1042]], PARAMETER["Rate of change of X-axis rotation",0.081, ANGLEUNIT["milliarc-seconds per year",1.53631468932076E-16], ID["EPSG",1043]], PARAMETER["Rate of change of Y-axis rotation",0.49, ANGLEUNIT["milliarc-seconds per year",1.53631468932076E-16], ID["EPSG",1044]], PARAMETER["Rate of change of Z-axis rotation",-0.792, ANGLEUNIT["milliarc-seconds per year",1.53631468932076E-16], ID["EPSG",1045]], PARAMETER["Rate of change of Scale difference",0.08, SCALEUNIT["parts per billion per year",3.16887651727315E-17], ID["EPSG",1046]], PARAMETER["Parameter reference epoch",2000, TIMEUNIT["year",31556925.445], ID["EPSG",1047]], OPERATIONACCURACY[0.0], USAGE[ SCOPE["Geodesy."], AREA["Europe - onshore and offshore: Albania; Andorra; Austria; Belgium; Bosnia and Herzegovina; Bulgaria; Croatia; Cyprus; Czechia; Denmark; Estonia; Faroe Islands; Finland; France; Germany; Gibraltar; Greece; Hungary; Ireland; Italy; Kosovo; Latvia; Liechtenstein; Lithuania; Luxembourg; Malta; Moldova; Monaco; Montenegro; Netherlands; North Macedonia; Norway including Svalbard and Jan Mayen; Poland; Portugal; Romania; San Marino; Serbia; Slovakia; Slovenia; Spain; Sweden; Switzerland; United Kingdom (UK) including Channel Islands and Isle of Man; Vatican City State."], BBOX[32.88,-16.1,84.73,40.18]], ID["EPSG",7950], REMARK["Scale difference in ppb and scale difference rate in ppb/yr where 1/billion = 1E-9 or nm/m."]]
Definition: JavaScript (Proj4js)
proj4.defs("EPSG:7950","+proj=helmert +x=0.0541 +y=0.0502 +z=-0.0538 +rx=0.000891 +ry=0.00539 +rz=-0.008712 +s=0.0004 +dx=-0.0002 +dy=0.0001 +dz=-0.0018 +drx=8.1e-05 +dry=0.00049 +drz=-0.000792 +ds=8e-05 +t_epoch=2000 +convention=position_vector");
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "Transformation", "name": "ITRF2005 to ETRF2000 (1)", "source_crs": { "type": "GeodeticCRS", "name": "ITRF2005", "datum": { "type": "DynamicGeodeticReferenceFrame", "name": "International Terrestrial Reference Frame 2005", "frame_reference_epoch": 2000, "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": 4896 } }, "target_crs": { "type": "GeodeticCRS", "name": "ETRF2000", "datum": { "type": "GeodeticReferenceFrame", "name": "European Terrestrial Reference Frame 2000", "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": 7930 } }, "method": { "name": "Time-dependent Position Vector tfm (geocentric)", "id": { "authority": "EPSG", "code": 1053 } }, "parameters": [ { "name": "X-axis translation", "value": 54.1, "unit": { "type": "LinearUnit", "name": "millimetre", "conversion_factor": 0.001 }, "id": { "authority": "EPSG", "code": 8605 } }, { "name": "Y-axis translation", "value": 50.2, "unit": { "type": "LinearUnit", "name": "millimetre", "conversion_factor": 0.001 }, "id": { "authority": "EPSG", "code": 8606 } }, { "name": "Z-axis translation", "value": -53.8, "unit": { "type": "LinearUnit", "name": "millimetre", "conversion_factor": 0.001 }, "id": { "authority": "EPSG", "code": 8607 } }, { "name": "X-axis rotation", "value": 0.891, "unit": { "type": "AngularUnit", "name": "milliarc-second", "conversion_factor": 4.84813681109536e-09 }, "id": { "authority": "EPSG", "code": 8608 } }, { "name": "Y-axis rotation", "value": 5.39, "unit": { "type": "AngularUnit", "name": "milliarc-second", "conversion_factor": 4.84813681109536e-09 }, "id": { "authority": "EPSG", "code": 8609 } }, { "name": "Z-axis rotation", "value": -8.712, "unit": { "type": "AngularUnit", "name": "milliarc-second", "conversion_factor": 4.84813681109536e-09 }, "id": { "authority": "EPSG", "code": 8610 } }, { "name": "Scale difference", "value": 0.4, "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": -0.2, "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": 0.1, "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": -1.8, "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": 0.081, "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": 0.49, "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": -0.792, "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": 0.08, "unit": { "type": "ScaleUnit", "name": "parts per billion per year", "conversion_factor": 3.16887651727315e-17 }, "id": { "authority": "EPSG", "code": 1046 } }, { "name": "Parameter reference epoch", "value": 2000, "unit": { "type": "TimeUnit", "name": "year", "conversion_factor": 31556925.445 }, "id": { "authority": "EPSG", "code": 1047 } } ], "accuracy": "0.0", "scope": "Geodesy.", "area": "Europe - onshore and offshore: Albania; Andorra; Austria; Belgium; Bosnia and Herzegovina; Bulgaria; Croatia; Cyprus; Czechia; Denmark; Estonia; Faroe Islands; Finland; France; Germany; Gibraltar; Greece; Hungary; Ireland; Italy; Kosovo; Latvia; Liechtenstein; Lithuania; Luxembourg; Malta; Moldova; Monaco; Montenegro; Netherlands; North Macedonia; Norway including Svalbard and Jan Mayen; Poland; Portugal; Romania; San Marino; Serbia; Slovakia; Slovenia; Spain; Sweden; Switzerland; United Kingdom (UK) including Channel Islands and Isle of Man; Vatican City State.", "bbox": { "south_latitude": 32.88, "west_longitude": -16.1, "north_latitude": 84.73, "east_longitude": 40.18 }, "id": { "authority": "EPSG", "code": 7950 }, "remarks": "Scale difference in ppb and scale difference rate in ppb/yr where 1/billion = 1E-9 or nm/m." }
Definition: MapServer - MAPfile
PROJECTION "proj=helmert" "x=0.0541" "y=0.0502" "z=-0.0538" "rx=0.000891" "ry=0.00539" "rz=-0.008712" "s=0.0004" "dx=-0.0002" "dy=0.0001" "dz=-0.0018" "drx=8.1e-05" "dry=0.00049" "drz=-0.000792" "ds=8e-05" "t_epoch=2000" "convention=position_vector" END
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=helmert +x=0.0541 +y=0.0502 +z=-0.0538 +rx=0.000891 +ry=0.00539 +rz=-0.008712 +s=0.0004 +dx=-0.0002 +dy=0.0001 +dz=-0.0018 +drx=8.1e-05 +dry=0.00049 +drz=-0.000792 +ds=8e-05 +t_epoch=2000 +convention=position_vector"> <Layer srs="+proj=helmert +x=0.0541 +y=0.0502 +z=-0.0538 +rx=0.000891 +ry=0.00539 +rz=-0.008712 +s=0.0004 +dx=-0.0002 +dy=0.0001 +dz=-0.0018 +drx=8.1e-05 +dry=0.00049 +drz=-0.000792 +ds=8e-05 +t_epoch=2000 +convention=position_vector"> </Layer> </Map>
Definition: SQL (PostGIS)
INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 7950, 'EPSG', 7950, '+proj=helmert +x=0.0541 +y=0.0502 +z=-0.0538 +rx=0.000891 +ry=0.00539 +rz=-0.008712 +s=0.0004 +dx=-0.0002 +dy=0.0001 +dz=-0.0018 +drx=8.1e-05 +dry=0.00049 +drz=-0.000792 +ds=8e-05 +t_epoch=2000 +convention=position_vector', 'None');
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