EPSG:6864

ITRF96 to NAD83(CORS96) (1)

Attributes

Geodetic CRS: ITRF96

Datum: International Terrestrial Reference Frame 1996

Ellipsoid: GRS 1980

Prime meridian: Greenwich

Data source: EPSG

Information source: "Realisation and Unification of NAD83 in Canada and the US via the ITRF", Craymer, Ferland and Snay, at US National Geodetic Survey, http://geodesy.noaa.gov/CORS.

Revision date: 2019-09-17

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Definition: PROJ.4

+proj=helmert +x=0.991 +y=-1.9072 +z=-0.5129 +rx=0.02579 +ry=0.00965 +rz=0.01166 +s=0 +dx=0 +dy=0 +dz=0 +drx=5.32e-05 +dry=-0.0007423 +drz=-3.16e-05 +ds=0 +t_epoch=1997 +convention=coordinate_frame

Definition: JavaScript (Proj4js)

proj4.defs("EPSG:6864","+proj=helmert +x=0.991 +y=-1.9072 +z=-0.5129 +rx=0.02579 +ry=0.00965 +rz=0.01166 +s=0 +dx=0 +dy=0 +dz=0 +drx=5.32e-05 +dry=-0.0007423 +drz=-3.16e-05 +ds=0 +t_epoch=1997 +convention=coordinate_frame");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.4/projjson.schema.json",
    "type": "Transformation",
    "name": "ITRF96 to NAD83(CORS96) (1)",
    "source_crs": {
        "type": "GeodeticCRS",
        "name": "ITRF96",
        "datum": {
            "type": "DynamicGeodeticReferenceFrame",
            "name": "International Terrestrial Reference Frame 1996",
            "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": 4917
        }
    },
    "target_crs": {
        "type": "GeodeticCRS",
        "name": "NAD83(CORS96)",
        "datum": {
            "type": "GeodeticReferenceFrame",
            "name": "NAD83 (Continuously Operating Reference Station 1996)",
            "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": 6781
        }
    },
    "method": {
        "name": "Time-dependent Coordinate Frame rotation (geocen)",
        "id": {
            "authority": "EPSG",
            "code": 1056
        }
    },
    "parameters": [
        {
            "name": "X-axis translation",
            "value": 0.991,
            "unit": "metre",
            "id": {
                "authority": "EPSG",
                "code": 8605
            }
        },
        {
            "name": "Y-axis translation",
            "value": -1.9072,
            "unit": "metre",
            "id": {
                "authority": "EPSG",
                "code": 8606
            }
        },
        {
            "name": "Z-axis translation",
            "value": -0.5129,
            "unit": "metre",
            "id": {
                "authority": "EPSG",
                "code": 8607
            }
        },
        {
            "name": "X-axis rotation",
            "value": 25.79,
            "unit": {
                "type": "AngularUnit",
                "name": "milliarc-second",
                "conversion_factor": 4.84813681109536e-09
            },
            "id": {
                "authority": "EPSG",
                "code": 8608
            }
        },
        {
            "name": "Y-axis rotation",
            "value": 9.65,
            "unit": {
                "type": "AngularUnit",
                "name": "milliarc-second",
                "conversion_factor": 4.84813681109536e-09
            },
            "id": {
                "authority": "EPSG",
                "code": 8609
            }
        },
        {
            "name": "Z-axis rotation",
            "value": 11.66,
            "unit": {
                "type": "AngularUnit",
                "name": "milliarc-second",
                "conversion_factor": 4.84813681109536e-09
            },
            "id": {
                "authority": "EPSG",
                "code": 8610
            }
        },
        {
            "name": "Scale difference",
            "value": 0,
            "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,
            "unit": {
                "type": "LinearUnit",
                "name": "metres per year",
                "conversion_factor": 3.16887651727315e-08
            },
            "id": {
                "authority": "EPSG",
                "code": 1040
            }
        },
        {
            "name": "Rate of change of Y-axis translation",
            "value": 0,
            "unit": {
                "type": "LinearUnit",
                "name": "metres per year",
                "conversion_factor": 3.16887651727315e-08
            },
            "id": {
                "authority": "EPSG",
                "code": 1041
            }
        },
        {
            "name": "Rate of change of Z-axis translation",
            "value": 0,
            "unit": {
                "type": "LinearUnit",
                "name": "metres per year",
                "conversion_factor": 3.16887651727315e-08
            },
            "id": {
                "authority": "EPSG",
                "code": 1042
            }
        },
        {
            "name": "Rate of change of X-axis rotation",
            "value": 0.0532,
            "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": -0.7423,
            "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": -0.0316,
            "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,
            "unit": {
                "type": "ScaleUnit",
                "name": "parts per billion per year",
                "conversion_factor": 3.16887651727315e-17
            },
            "id": {
                "authority": "EPSG",
                "code": 1046
            }
        },
        {
            "name": "Parameter reference epoch",
            "value": 1997,
            "unit": {
                "type": "TimeUnit",
                "name": "year",
                "conversion_factor": 31556925.445
            },
            "id": {
                "authority": "EPSG",
                "code": 1047
            }
        }
    ],
    "accuracy": "0.0",
    "scope": "Geodesy. Defines NAD83(CORS96) from 1st January 1997 through 31st December 1999.",
    "area": "Puerto Rico - onshore and offshore. United States (USA) onshore and offshore - Alabama; Alaska; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming. US Virgin Islands - onshore and offshore.",
    "bbox": {
        "south_latitude": 14.92,
        "west_longitude": 167.65,
        "north_latitude": 74.71,
        "east_longitude": -63.88
    },
    "id": {
        "authority": "EPSG",
        "code": 6864
    },
    "remarks": "Scale difference in ppb and scale difference rate in ppb/yr where 1/billion = 1E-9 or nm/m. Jointly derived by Canada and US at 12 North American VLBI stations. Replaced by tfm code 6865 from 2000-01-01. See tfm code 8259 for Canadian equivalent."
}

Definition: MapServer - MAPfile

PROJECTION
	"proj=helmert"
	"x=0.991"
	"y=-1.9072"
	"z=-0.5129"
	"rx=0.02579"
	"ry=0.00965"
	"rz=0.01166"
	"s=0"
	"dx=0"
	"dy=0"
	"dz=0"
	"drx=5.32e-05"
	"dry=-0.0007423"
	"drz=-3.16e-05"
	"ds=0"
	"t_epoch=1997"
	"convention=coordinate_frame"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=helmert +x=0.991 +y=-1.9072 +z=-0.5129 +rx=0.02579 +ry=0.00965 +rz=0.01166 +s=0 +dx=0 +dy=0 +dz=0 +drx=5.32e-05 +dry=-0.0007423 +drz=-3.16e-05 +ds=0 +t_epoch=1997 +convention=coordinate_frame">
	<Layer srs="+proj=helmert +x=0.991 +y=-1.9072 +z=-0.5129 +rx=0.02579 +ry=0.00965 +rz=0.01166 +s=0 +dx=0 +dy=0 +dz=0 +drx=5.32e-05 +dry=-0.0007423 +drz=-3.16e-05 +ds=0 +t_epoch=1997 +convention=coordinate_frame">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 6864, 'EPSG', 6864, '+proj=helmert +x=0.991 +y=-1.9072 +z=-0.5129 +rx=0.02579 +ry=0.00965 +rz=0.01166 +s=0 +dx=0 +dy=0 +dz=0 +drx=5.32e-05 +dry=-0.0007423 +drz=-3.16e-05 +ds=0 +t_epoch=1997 +convention=coordinate_frame', 'None');

Definition: OGC WKT 2 (2019)

COORDINATEOPERATION["ITRF96 to NAD83(CORS96) (1)",VERSION["NGS-US CORS96"],SOURCECRS[GEODCRS["ITRF96",DYNAMIC[FRAMEEPOCH[1997]],DATUM["International Terrestrial Reference Frame 1996",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",4917]]],TARGETCRS[GEODCRS["NAD83(CORS96)",DATUM["NAD83 (Continuously Operating Reference Station 1996)",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",6781]]],METHOD["Time-dependent Coordinate Frame rotation (geocen)",ID["EPSG",1056]],PARAMETER["X-axis translation",0.991,LENGTHUNIT["metre",1],ID["EPSG",8605]],PARAMETER["Y-axis translation",-1.9072,LENGTHUNIT["metre",1],ID["EPSG",8606]],PARAMETER["Z-axis translation",-0.5129,LENGTHUNIT["metre",1],ID["EPSG",8607]],PARAMETER["X-axis rotation",25.79,ANGLEUNIT["milliarc-second",4.84813681109536E-09],ID["EPSG",8608]],PARAMETER["Y-axis rotation",9.65,ANGLEUNIT["milliarc-second",4.84813681109536E-09],ID["EPSG",8609]],PARAMETER["Z-axis rotation",11.66,ANGLEUNIT["milliarc-second",4.84813681109536E-09],ID["EPSG",8610]],PARAMETER["Scale difference",0,SCALEUNIT["parts per billion",1E-09],ID["EPSG",8611]],PARAMETER["Rate of change of X-axis translation",0,LENGTHUNIT["metres per year",3.16887651727315E-08],ID["EPSG",1040]],PARAMETER["Rate of change of Y-axis translation",0,LENGTHUNIT["metres per year",3.16887651727315E-08],ID["EPSG",1041]],PARAMETER["Rate of change of Z-axis translation",0,LENGTHUNIT["metres per year",3.16887651727315E-08],ID["EPSG",1042]],PARAMETER["Rate of change of X-axis rotation",0.0532,ANGLEUNIT["milliarc-seconds per year",1.53631468932076E-16],ID["EPSG",1043]],PARAMETER["Rate of change of Y-axis rotation",-0.7423,ANGLEUNIT["milliarc-seconds per year",1.53631468932076E-16],ID["EPSG",1044]],PARAMETER["Rate of change of Z-axis rotation",-0.0316,ANGLEUNIT["milliarc-seconds per year",1.53631468932076E-16],ID["EPSG",1045]],PARAMETER["Rate of change of Scale difference",0,SCALEUNIT["parts per billion per year",3.16887651727315E-17],ID["EPSG",1046]],PARAMETER["Parameter reference epoch",1997,TIMEUNIT["year",31556925.445],ID["EPSG",1047]],OPERATIONACCURACY[0.0],USAGE[SCOPE["Geodesy. Defines NAD83(CORS96) from 1st January 1997 through 31st December 1999."],AREA["Puerto Rico - onshore and offshore. United States (USA) onshore and offshore - Alabama; Alaska; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming. US Virgin Islands - onshore and offshore."],BBOX[14.92,167.65,74.71,-63.88]],ID["EPSG",6864],REMARK["Scale difference in ppb and scale difference rate in ppb/yr where 1/billion = 1E-9 or nm/m. Jointly derived by Canada and US at 12 North American VLBI stations. Replaced by tfm code 6865 from 2000-01-01. See tfm code 8259 for Canadian equivalent."]]