International Terrestrial Reference Frame 1993
EPSG
International Earth Rotation Service (IERS) Technical Note 36, Conventions(2010). Also http://itrf.ensg.ign.fr
2019-05-17
Geodesy.
Scale difference in ppb and scale difference rate in ppb/yr where 1/billion = 1E-9 or nm/m.
Time-dependent Position Vector tfm (geocentric)
(0,)
Definition: OGC Well Known Text 2 (2019)
COORDINATEOPERATION["ITRF93 to ITRF2008 (1)", VERSION["IERS-Wld"], SOURCECRS[ GEODCRS["ITRF93", DYNAMIC[ FRAMEEPOCH[1993]], DATUM["International Terrestrial Reference Frame 1993", 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",4915]]], TARGETCRS[ GEODCRS["ITRF2008", DYNAMIC[ FRAMEEPOCH[2005]], DATUM["International Terrestrial Reference Frame 2008", 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",5332]]], METHOD["Time-dependent Position Vector tfm (geocentric)", ID["EPSG",1053]], PARAMETER["X-axis translation",24, LENGTHUNIT["millimetre",0.001], ID["EPSG",8605]], PARAMETER["Y-axis translation",-2.4, LENGTHUNIT["millimetre",0.001], ID["EPSG",8606]], PARAMETER["Z-axis translation",38.6, LENGTHUNIT["millimetre",0.001], ID["EPSG",8607]], PARAMETER["X-axis rotation",1.71, ANGLEUNIT["milliarc-second",4.84813681109536E-09], ID["EPSG",8608]], PARAMETER["Y-axis rotation",1.48, ANGLEUNIT["milliarc-second",4.84813681109536E-09], ID["EPSG",8609]], PARAMETER["Z-axis rotation",0.3, ANGLEUNIT["milliarc-second",4.84813681109536E-09], ID["EPSG",8610]], PARAMETER["Scale difference",-3.41, SCALEUNIT["parts per billion",1E-09], ID["EPSG",8611]], PARAMETER["Rate of change of X-axis translation",2.8, 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",2.4, LENGTHUNIT["millimetres per year",3.16887651727315E-11], ID["EPSG",1042]], PARAMETER["Rate of change of X-axis rotation",0.11, ANGLEUNIT["milliarc-seconds per year",1.53631468932076E-16], ID["EPSG",1043]], PARAMETER["Rate of change of Y-axis rotation",0.19, ANGLEUNIT["milliarc-seconds per year",1.53631468932076E-16], ID["EPSG",1044]], PARAMETER["Rate of change of Z-axis rotation",-0.07, ANGLEUNIT["milliarc-seconds per year",1.53631468932076E-16], ID["EPSG",1045]], PARAMETER["Rate of change of Scale difference",-0.09, 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[0.01], USAGE[ SCOPE["Geodesy."], AREA["World."], BBOX[-90,-180,90,180]], ID["EPSG",6296], 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:6296","+proj=helmert +x=0.024 +y=-0.0024 +z=0.0386 +rx=0.00171 +ry=0.00148 +rz=0.0003 +s=-0.00341 +dx=0.0028 +dy=0.0001 +dz=0.0024 +drx=0.00011 +dry=0.00019 +drz=-7e-05 +ds=-9e-05 +t_epoch=2000 +convention=position_vector");
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "Transformation", "name": "ITRF93 to ITRF2008 (1)", "source_crs": { "type": "GeodeticCRS", "name": "ITRF93", "datum": { "type": "DynamicGeodeticReferenceFrame", "name": "International Terrestrial Reference Frame 1993", "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": 4915 } }, "target_crs": { "type": "GeodeticCRS", "name": "ITRF2008", "datum": { "type": "DynamicGeodeticReferenceFrame", "name": "International Terrestrial Reference Frame 2008", "frame_reference_epoch": 2005, "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": 5332 } }, "method": { "name": "Time-dependent Position Vector tfm (geocentric)", "id": { "authority": "EPSG", "code": 1053 } }, "parameters": [ { "name": "X-axis translation", "value": 24, "unit": { "type": "LinearUnit", "name": "millimetre", "conversion_factor": 0.001 }, "id": { "authority": "EPSG", "code": 8605 } }, { "name": "Y-axis translation", "value": -2.4, "unit": { "type": "LinearUnit", "name": "millimetre", "conversion_factor": 0.001 }, "id": { "authority": "EPSG", "code": 8606 } }, { "name": "Z-axis translation", "value": 38.6, "unit": { "type": "LinearUnit", "name": "millimetre", "conversion_factor": 0.001 }, "id": { "authority": "EPSG", "code": 8607 } }, { "name": "X-axis rotation", "value": 1.71, "unit": { "type": "AngularUnit", "name": "milliarc-second", "conversion_factor": 4.84813681109536e-09 }, "id": { "authority": "EPSG", "code": 8608 } }, { "name": "Y-axis rotation", "value": 1.48, "unit": { "type": "AngularUnit", "name": "milliarc-second", "conversion_factor": 4.84813681109536e-09 }, "id": { "authority": "EPSG", "code": 8609 } }, { "name": "Z-axis rotation", "value": 0.3, "unit": { "type": "AngularUnit", "name": "milliarc-second", "conversion_factor": 4.84813681109536e-09 }, "id": { "authority": "EPSG", "code": 8610 } }, { "name": "Scale difference", "value": -3.41, "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": 2.8, "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": 2.4, "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": 0.11, "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": 0.19, "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": -0.07, "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": -0.09, "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": "0.01", "scope": "Geodesy.", "area": "World.", "bbox": { "south_latitude": -90, "west_longitude": -180, "north_latitude": 90, "east_longitude": 180 }, "id": { "authority": "EPSG", "code": 6296 }, "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=0.024" "y=-0.0024" "z=0.0386" "rx=0.00171" "ry=0.00148" "rz=0.0003" "s=-0.00341" "dx=0.0028" "dy=0.0001" "dz=0.0024" "drx=0.00011" "dry=0.00019" "drz=-7e-05" "ds=-9e-05" "t_epoch=2000" "convention=position_vector" END
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=helmert +x=0.024 +y=-0.0024 +z=0.0386 +rx=0.00171 +ry=0.00148 +rz=0.0003 +s=-0.00341 +dx=0.0028 +dy=0.0001 +dz=0.0024 +drx=0.00011 +dry=0.00019 +drz=-7e-05 +ds=-9e-05 +t_epoch=2000 +convention=position_vector"> <Layer srs="+proj=helmert +x=0.024 +y=-0.0024 +z=0.0386 +rx=0.00171 +ry=0.00148 +rz=0.0003 +s=-0.00341 +dx=0.0028 +dy=0.0001 +dz=0.0024 +drx=0.00011 +dry=0.00019 +drz=-7e-05 +ds=-9e-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 ( 6296, 'EPSG', 6296, '+proj=helmert +x=0.024 +y=-0.0024 +z=0.0386 +rx=0.00171 +ry=0.00148 +rz=0.0003 +s=-0.00341 +dx=0.0028 +dy=0.0001 +dz=0.0024 +drx=0.00011 +dry=0.00019 +drz=-7e-05 +ds=-9e-05 +t_epoch=2000 +convention=position_vector', 'None');