EPSG:6935

IGS08 to IGRS (1)

Attributes

Geodetic CRS: IGS08

Datum: IGS08

Ellipsoid: GRS 1980

Prime meridian: Greenwich

Data source: EPSG

Information source: IOGP report 373-22.

Revision date: 2015-01-17

Scope: Geodesy, engineering survey, topographic mapping.

Remarks: Derived by least squares adjustment from the coordinates of the IRAQ-CORS network in both CRSs. Station Baghdad was excluded (high residuals). RMSE = 0.004 m. Application yields identical results to transformation 6936.

Method: Molodensky-Badekas (PV geocentric domain)

Area of use: Iraq - onshore and offshore.

Description: (0,)

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Iraq - onshore and offshore.

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Definition: OGC Well Known Text 2 (2019)

COORDINATEOPERATION["IGS08 to IGRS (1)",
    VERSION["IRQ-MB(PV)"],
    SOURCECRS[
        GEODCRS["IGS08",
            DYNAMIC[
                FRAMEEPOCH[2005]],
            DATUM["IGS08",
                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",6934]]],
    TARGETCRS[
        GEODCRS["IGRS",
            DATUM["Iraqi Geospatial Reference System",
                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",3887]]],
    METHOD["Molodensky-Badekas (PV geocentric domain)",
        ID["EPSG",1061]],
    PARAMETER["X-axis translation",0.208,
        LENGTHUNIT["metre",1],
        ID["EPSG",8605]],
    PARAMETER["Y-axis translation",-0.012,
        LENGTHUNIT["metre",1],
        ID["EPSG",8606]],
    PARAMETER["Z-axis translation",-0.229,
        LENGTHUNIT["metre",1],
        ID["EPSG",8607]],
    PARAMETER["X-axis rotation",-0.01182,
        ANGLEUNIT["arc-second",4.84813681109536E-06],
        ID["EPSG",8608]],
    PARAMETER["Y-axis rotation",0.00811,
        ANGLEUNIT["arc-second",4.84813681109536E-06],
        ID["EPSG",8609]],
    PARAMETER["Z-axis rotation",-0.01677,
        ANGLEUNIT["arc-second",4.84813681109536E-06],
        ID["EPSG",8610]],
    PARAMETER["Scale difference",-0.0059,
        SCALEUNIT["parts per million",1E-06],
        ID["EPSG",8611]],
    PARAMETER["Ordinate 1 of evaluation point",3777505.028,
        LENGTHUNIT["metre",1],
        ID["EPSG",8617]],
    PARAMETER["Ordinate 2 of evaluation point",3779254.396,
        LENGTHUNIT["metre",1],
        ID["EPSG",8618]],
    PARAMETER["Ordinate 3 of evaluation point",3471111.632,
        LENGTHUNIT["metre",1],
        ID["EPSG",8667]],
    OPERATIONACCURACY[0.05],
    USAGE[
        SCOPE["Geodesy, engineering survey, topographic mapping."],
        AREA["Iraq - onshore and offshore."],
        BBOX[29.06,38.79,37.39,48.75]],
    ID["EPSG",6935],
    REMARK["Derived by least squares adjustment from the coordinates of the IRAQ-CORS network in both CRSs. Station Baghdad was excluded (high residuals). RMSE = 0.004 m. Application yields identical results to transformation 6936."]]

Definition: PROJ.4

+proj=molobadekas +x=0.208 +y=-0.012 +z=-0.229 +rx=-0.01182 +ry=0.00811 +rz=-0.01677 +s=-0.0059 +px=3777505.028 +py=3779254.396 +pz=3471111.632 +convention=position_vector

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:6935","+proj=molobadekas +x=0.208 +y=-0.012 +z=-0.229 +rx=-0.01182 +ry=0.00811 +rz=-0.01677 +s=-0.0059 +px=3777505.028 +py=3779254.396 +pz=3471111.632 +convention=position_vector");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "Transformation",
    "name": "IGS08 to IGRS (1)",
    "source_crs": {
        "type": "GeodeticCRS",
        "name": "IGS08",
        "datum": {
            "type": "DynamicGeodeticReferenceFrame",
            "name": "IGS08",
            "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": 6934
        }
    },
    "target_crs": {
        "type": "GeodeticCRS",
        "name": "IGRS",
        "datum": {
            "type": "GeodeticReferenceFrame",
            "name": "Iraqi Geospatial Reference System",
            "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": 3887
        }
    },
    "method": {
        "name": "Molodensky-Badekas (PV geocentric domain)",
        "id": {
            "authority": "EPSG",
            "code": 1061
        }
    },
    "parameters": [
        {
            "name": "X-axis translation",
            "value": 0.208,
            "unit": "metre",
            "id": {
                "authority": "EPSG",
                "code": 8605
            }
        },
        {
            "name": "Y-axis translation",
            "value": -0.012,
            "unit": "metre",
            "id": {
                "authority": "EPSG",
                "code": 8606
            }
        },
        {
            "name": "Z-axis translation",
            "value": -0.229,
            "unit": "metre",
            "id": {
                "authority": "EPSG",
                "code": 8607
            }
        },
        {
            "name": "X-axis rotation",
            "value": -0.01182,
            "unit": {
                "type": "AngularUnit",
                "name": "arc-second",
                "conversion_factor": 4.84813681109536e-06
            },
            "id": {
                "authority": "EPSG",
                "code": 8608
            }
        },
        {
            "name": "Y-axis rotation",
            "value": 0.00811,
            "unit": {
                "type": "AngularUnit",
                "name": "arc-second",
                "conversion_factor": 4.84813681109536e-06
            },
            "id": {
                "authority": "EPSG",
                "code": 8609
            }
        },
        {
            "name": "Z-axis rotation",
            "value": -0.01677,
            "unit": {
                "type": "AngularUnit",
                "name": "arc-second",
                "conversion_factor": 4.84813681109536e-06
            },
            "id": {
                "authority": "EPSG",
                "code": 8610
            }
        },
        {
            "name": "Scale difference",
            "value": -0.0059,
            "unit": {
                "type": "ScaleUnit",
                "name": "parts per million",
                "conversion_factor": 1e-06
            },
            "id": {
                "authority": "EPSG",
                "code": 8611
            }
        },
        {
            "name": "Ordinate 1 of evaluation point",
            "value": 3777505.028,
            "unit": "metre",
            "id": {
                "authority": "EPSG",
                "code": 8617
            }
        },
        {
            "name": "Ordinate 2 of evaluation point",
            "value": 3779254.396,
            "unit": "metre",
            "id": {
                "authority": "EPSG",
                "code": 8618
            }
        },
        {
            "name": "Ordinate 3 of evaluation point",
            "value": 3471111.632,
            "unit": "metre",
            "id": {
                "authority": "EPSG",
                "code": 8667
            }
        }
    ],
    "accuracy": "0.05",
    "scope": "Geodesy, engineering survey, topographic mapping.",
    "area": "Iraq - onshore and offshore.",
    "bbox": {
        "south_latitude": 29.06,
        "west_longitude": 38.79,
        "north_latitude": 37.39,
        "east_longitude": 48.75
    },
    "id": {
        "authority": "EPSG",
        "code": 6935
    },
    "remarks": "Derived by least squares adjustment from the coordinates of the IRAQ-CORS network in both CRSs. Station Baghdad was excluded (high residuals). RMSE = 0.004 m. Application yields identical results to transformation 6936."
}

Definition: MapServer - MAPfile

PROJECTION
	"proj=molobadekas"
	"x=0.208"
	"y=-0.012"
	"z=-0.229"
	"rx=-0.01182"
	"ry=0.00811"
	"rz=-0.01677"
	"s=-0.0059"
	"px=3777505.028"
	"py=3779254.396"
	"pz=3471111.632"
	"convention=position_vector"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=molobadekas +x=0.208 +y=-0.012 +z=-0.229 +rx=-0.01182 +ry=0.00811 +rz=-0.01677 +s=-0.0059 +px=3777505.028 +py=3779254.396 +pz=3471111.632 +convention=position_vector">
	<Layer srs="+proj=molobadekas +x=0.208 +y=-0.012 +z=-0.229 +rx=-0.01182 +ry=0.00811 +rz=-0.01677 +s=-0.0059 +px=3777505.028 +py=3779254.396 +pz=3471111.632 +convention=position_vector">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 6935, 'EPSG', 6935, '+proj=molobadekas +x=0.208 +y=-0.012 +z=-0.229 +rx=-0.01182 +ry=0.00811 +rz=-0.01677 +s=-0.0059 +px=3777505.028 +py=3779254.396 +pz=3471111.632 +convention=position_vector', 'None');