EPSG:9021

ITRF89 to ITRF90 (1)

Attributes

Geodetic CRS: ITRF89

Datum: International Terrestrial Reference Frame 1989

Ellipsoid: GRS 1980

Prime meridian: Greenwich

Data source: EPSG

Information source: International Earth Rotation Service (IERS) Technical Note 9.

Revision date: 2019-05-17

Scope: Geodesy.

Remarks: Scale difference (dS) in ppb where 1/billion = 1E-9 or nm/m. dS derived through summing CTs to later realizations ITRF2000 (CT 6281 + 7814), ITRF2008 (CT 6291 + 6292) and ITRF2014 (CT 8069 + 8070) is -3.4ppb: this value is recommended.

Method: Position Vector transformation (geocentric domain)

Area of use: World.

Description: (0,)

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Definition: PROJ.4

+proj=helmert +x=-0.005 +y=-0.024 +z=0.038 +rx=0 +ry=0 +rz=0 +s=-0.003 +convention=position_vector

Definition: JavaScript (Proj4js)

proj4.defs("EPSG:9021","+proj=helmert +x=-0.005 +y=-0.024 +z=0.038 +rx=0 +ry=0 +rz=0 +s=-0.003 +convention=position_vector");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.4/projjson.schema.json",
    "type": "Transformation",
    "name": "ITRF89 to ITRF90 (1)",
    "source_crs": {
        "type": "GeodeticCRS",
        "name": "ITRF89",
        "datum": {
            "type": "DynamicGeodeticReferenceFrame",
            "name": "International Terrestrial Reference Frame 1989",
            "frame_reference_epoch": 1988,
            "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": 4911
        }
    },
    "target_crs": {
        "type": "GeodeticCRS",
        "name": "ITRF90",
        "datum": {
            "type": "DynamicGeodeticReferenceFrame",
            "name": "International Terrestrial Reference Frame 1990",
            "frame_reference_epoch": 1988,
            "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": 4912
        }
    },
    "method": {
        "name": "Position Vector transformation (geocentric domain)",
        "id": {
            "authority": "EPSG",
            "code": 1033
        }
    },
    "parameters": [
        {
            "name": "X-axis translation",
            "value": -0.5,
            "unit": {
                "type": "LinearUnit",
                "name": "centimetre",
                "conversion_factor": 0.01
            },
            "id": {
                "authority": "EPSG",
                "code": 8605
            }
        },
        {
            "name": "Y-axis translation",
            "value": -2.4,
            "unit": {
                "type": "LinearUnit",
                "name": "centimetre",
                "conversion_factor": 0.01
            },
            "id": {
                "authority": "EPSG",
                "code": 8606
            }
        },
        {
            "name": "Z-axis translation",
            "value": 3.8,
            "unit": {
                "type": "LinearUnit",
                "name": "centimetre",
                "conversion_factor": 0.01
            },
            "id": {
                "authority": "EPSG",
                "code": 8607
            }
        },
        {
            "name": "X-axis rotation",
            "value": 0,
            "unit": {
                "type": "AngularUnit",
                "name": "milliarc-second",
                "conversion_factor": 4.84813681109536e-09
            },
            "id": {
                "authority": "EPSG",
                "code": 8608
            }
        },
        {
            "name": "Y-axis rotation",
            "value": 0,
            "unit": {
                "type": "AngularUnit",
                "name": "milliarc-second",
                "conversion_factor": 4.84813681109536e-09
            },
            "id": {
                "authority": "EPSG",
                "code": 8609
            }
        },
        {
            "name": "Z-axis rotation",
            "value": 0,
            "unit": {
                "type": "AngularUnit",
                "name": "milliarc-second",
                "conversion_factor": 4.84813681109536e-09
            },
            "id": {
                "authority": "EPSG",
                "code": 8610
            }
        },
        {
            "name": "Scale difference",
            "value": -3,
            "unit": {
                "type": "ScaleUnit",
                "name": "parts per billion",
                "conversion_factor": 1e-09
            },
            "id": {
                "authority": "EPSG",
                "code": 8611
            }
        }
    ],
    "accuracy": "0.01",
    "scope": "Geodesy.",
    "area": "World.",
    "bbox": {
        "south_latitude": -90,
        "west_longitude": -180,
        "north_latitude": 90,
        "east_longitude": 180
    },
    "id": {
        "authority": "EPSG",
        "code": 9021
    },
    "remarks": "Scale difference (dS) in ppb where 1/billion = 1E-9 or nm/m. dS derived through summing CTs to later realizations ITRF2000 (CT 6281 + 7814), ITRF2008 (CT 6291 + 6292) and ITRF2014 (CT 8069 + 8070) is -3.4ppb: this value is recommended."
}

Definition: MapServer - MAPfile

PROJECTION
	"proj=helmert"
	"x=-0.005"
	"y=-0.024"
	"z=0.038"
	"rx=0"
	"ry=0"
	"rz=0"
	"s=-0.003"
	"convention=position_vector"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=helmert +x=-0.005 +y=-0.024 +z=0.038 +rx=0 +ry=0 +rz=0 +s=-0.003 +convention=position_vector">
	<Layer srs="+proj=helmert +x=-0.005 +y=-0.024 +z=0.038 +rx=0 +ry=0 +rz=0 +s=-0.003 +convention=position_vector">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 9021, 'EPSG', 9021, '+proj=helmert +x=-0.005 +y=-0.024 +z=0.038 +rx=0 +ry=0 +rz=0 +s=-0.003 +convention=position_vector', 'None');

Definition: OGC WKT 2 (2019)

COORDINATEOPERATION["ITRF89 to ITRF90 (1)",VERSION["IERS-Wld"],SOURCECRS[GEODCRS["ITRF89",DYNAMIC[FRAMEEPOCH[1988]],DATUM["International Terrestrial Reference Frame 1989",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",4911]]],TARGETCRS[GEODCRS["ITRF90",DYNAMIC[FRAMEEPOCH[1988]],DATUM["International Terrestrial Reference Frame 1990",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",4912]]],METHOD["Position Vector transformation (geocentric domain)",ID["EPSG",1033]],PARAMETER["X-axis translation",-0.5,LENGTHUNIT["centimetre",0.01],ID["EPSG",8605]],PARAMETER["Y-axis translation",-2.4,LENGTHUNIT["centimetre",0.01],ID["EPSG",8606]],PARAMETER["Z-axis translation",3.8,LENGTHUNIT["centimetre",0.01],ID["EPSG",8607]],PARAMETER["X-axis rotation",0,ANGLEUNIT["milliarc-second",4.84813681109536E-09],ID["EPSG",8608]],PARAMETER["Y-axis rotation",0,ANGLEUNIT["milliarc-second",4.84813681109536E-09],ID["EPSG",8609]],PARAMETER["Z-axis rotation",0,ANGLEUNIT["milliarc-second",4.84813681109536E-09],ID["EPSG",8610]],PARAMETER["Scale difference",-3,SCALEUNIT["parts per billion",1E-09],ID["EPSG",8611]],OPERATIONACCURACY[0.01],USAGE[SCOPE["Geodesy."],AREA["World."],BBOX[-90,-180,90,180]],ID["EPSG",9021],REMARK["Scale difference (dS) in ppb where 1/billion = 1E-9 or nm/m. dS derived through summing CTs to later realizations ITRF2000 (CT 6281 + 7814), ITRF2008 (CT 6291 + 6292) and ITRF2014 (CT 8069 + 8070) is -3.4ppb: this value is recommended."]]