Georgia Geodetic Datum

Attributes

Unit: metre

Ellipsoid: GRS 1980

Prime meridian: Greenwich

Data source: EPSG

Information source: European Union ENPI Programme for Georgia "Methodology and Parameters for Datum Transformation between the New and Old Reference Systems", National Agency of Public Registry, Ministry of Justice of Georgia, November 14th, 2013; https://www.napr.gov.ge/

Revision date: 2025-07-15

Scope: Geodesy, cadastre, engineering survey, topographic mapping.

Area of use: Georgia - onshore and offshore.

Coordinate system: Cartesian 3D CS (geocentric). Axes: geocentric X Y Z. Orientations: X and Y in equatorial plane, X positive through intersection with prime meridian, Y through 0°N 90°E. Z axis parallel to mean earth rotation axis and positive towards North Pole. UoM: m.

Covered area powered by MapTiler

Center coordinates
3463262.27 3212072.66

Projected bounds:
3172107.92 2909984.72
3745623.79 3507326.28

WGS84 bounds:
38.97 41.04
46.72 43.59

Georgia - onshore and offshore.

Definition: OGC Well Known Text

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GEOCCS["Georgia Geodetic Datum",
    DATUM["Georgia_Geodetic_Datum",
        SPHEROID["GRS 1980",6378137,298.257222101,
            AUTHORITY["EPSG","7019"]],
        AUTHORITY["EPSG","1404"]],
    PRIMEM["Greenwich",0,
        AUTHORITY["EPSG","8901"]],
    UNIT["metre",1,
        AUTHORITY["EPSG","9001"]],
    AXIS["Geocentric X",OTHER],
    AXIS["Geocentric Y",OTHER],
    AXIS["Geocentric Z",NORTH],
    AUTHORITY["EPSG","10829"]]

Definition: OGC Well Known Text 2 (2019)

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GEODCRS["Georgia Geodetic Datum",
    DATUM["Georgia Geodetic Datum",
        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]],
    USAGE[
        SCOPE["Geodesy, cadastre, engineering survey, topographic mapping."],
        AREA["Georgia - onshore and offshore."],
        BBOX[41.04,38.97,43.59,46.72]],
    ID["EPSG",10829]]

Definition: PROJ.4

+proj=geocent +ellps=GRS80 +units=m +no_defs +type=crs

Definition: JavaScript (Proj4js)

proj4.defs("EPSG:10829","+proj=geocent +ellps=GRS80 +units=m +no_defs +type=crs");

Definition: JSON

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{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "GeodeticCRS",
    "name": "Georgia Geodetic Datum",
    "datum": {
        "type": "GeodeticReferenceFrame",
        "name": "Georgia Geodetic Datum",
        "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"
            }
        ]
    },
    "scope": "Geodesy, cadastre, engineering survey, topographic mapping.",
    "area": "Georgia - onshore and offshore.",
    "bbox": {
        "south_latitude": 41.04,
        "west_longitude": 38.97,
        "north_latitude": 43.59,
        "east_longitude": 46.72
    },
    "id": {
        "authority": "EPSG",
        "code": 10829
    }
}

Definition: GeoServer

10829=GEOCCS["Georgia Geodetic Datum",DATUM["Georgia_Geodetic_Datum",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","1404"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Geocentric X",OTHER],AXIS["Geocentric Y",OTHER],AXIS["Geocentric Z",NORTH],AUTHORITY["EPSG","10829"]]

Definition: MapServer - MAPfile

PROJECTION
	"proj=geocent"
	"ellps=GRS80"
	"units=m"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=geocent +ellps=GRS80 +units=m +no_defs +type=crs">
	<Layer srs="+proj=geocent +ellps=GRS80 +units=m +no_defs +type=crs">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 10829, 'EPSG', 10829, '+proj=geocent +ellps=GRS80 +units=m +no_defs +type=crs', 'GEOCCS["Georgia Geodetic Datum",DATUM["Georgia_Geodetic_Datum",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","1404"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Geocentric X",OTHER],AXIS["Geocentric Y",OTHER],AXIS["Geocentric Z",NORTH],AUTHORITY["EPSG","10829"]]');

EPSG:10829