EPSG:9698

REDGEOMIN / UTM zone 18S

Attributes

Unit: metre

Geodetic CRS: REDGEOMIN

Datum: Red Geodesica Para Mineria en Chile

Ellipsoid: GRS 1980

Prime meridian: Greenwich

Data source: EPSG

Information source: "Guía Técnica para uso de SIRGAS y GNSS en la minería de Chile: REDGEOMIN y épocas de referencia", Centro de Procesamiento y Análisis Geodésico, University of Santiago, July 2025.

Revision date: 2026-04-21

Scope: Minerals management.

Area of use: Chile - 78°W to 72°W, onshore and offshore.

Coordinate system: Cartesian 2D CS. Axes: easting, northing (E,N). Orientations: east, north. UoM: m.

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SimpleMap

Center coordinates
500433.84 5699314.01

Projected bounds:
182927.61 3415992.79
818130.08 7971091.11

WGS84 bounds:
-78.0 -59.36
-71.99 -18.35

Chile - 78°W to 72°W, onshore and offshore.
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Definition: OGC Well Known Text

PROJCS["REDGEOMIN / UTM zone 18S",
    GEOGCS["REDGEOMIN",
        DATUM["Red_Geodesica_Para_Mineria_en_Chile",
            SPHEROID["GRS 1980",6378137,298.257222101,
                AUTHORITY["EPSG","7019"]],
            AUTHORITY["EPSG","1304"]],
        PRIMEM["Greenwich",0,
            AUTHORITY["EPSG","8901"]],
        UNIT["degree",0.0174532925199433,
            AUTHORITY["EPSG","9122"]],
        AUTHORITY["EPSG","9696"]],
    PROJECTION["Transverse_Mercator"],
    PARAMETER["latitude_of_origin",0],
    PARAMETER["central_meridian",-75],
    PARAMETER["scale_factor",0.9996],
    PARAMETER["false_easting",500000],
    PARAMETER["false_northing",10000000],
    UNIT["metre",1,
        AUTHORITY["EPSG","9001"]],
    AXIS["Easting",EAST],
    AXIS["Northing",NORTH],
    AUTHORITY["EPSG","9698"]]

Definition: OGC Well Known Text 2 (2019)

PROJCRS["REDGEOMIN / UTM zone 18S",
    BASEGEOGCRS["REDGEOMIN",
        DYNAMIC[
            FRAMEEPOCH[2024]],
        DATUM["Red Geodesica Para Mineria en Chile",
            ELLIPSOID["GRS 1980",6378137,298.257222101,
                LENGTHUNIT["metre",1]]],
        PRIMEM["Greenwich",0,
            ANGLEUNIT["degree",0.0174532925199433]],
        ID["EPSG",9696]],
    CONVERSION["UTM zone 18S",
        METHOD["Transverse Mercator",
            ID["EPSG",9807]],
        PARAMETER["Latitude of natural origin",0,
            ANGLEUNIT["degree",0.0174532925199433],
            ID["EPSG",8801]],
        PARAMETER["Longitude of natural origin",-75,
            ANGLEUNIT["degree",0.0174532925199433],
            ID["EPSG",8802]],
        PARAMETER["Scale factor at natural origin",0.9996,
            SCALEUNIT["unity",1],
            ID["EPSG",8805]],
        PARAMETER["False easting",500000,
            LENGTHUNIT["metre",1],
            ID["EPSG",8806]],
        PARAMETER["False northing",10000000,
            LENGTHUNIT["metre",1],
            ID["EPSG",8807]]],
    CS[Cartesian,2],
        AXIS["(E)",east,
            ORDER[1],
            LENGTHUNIT["metre",1]],
        AXIS["(N)",north,
            ORDER[2],
            LENGTHUNIT["metre",1]],
    USAGE[
        SCOPE["Minerals management."],
        AREA["Chile - 78°W to 72°W, onshore and offshore."],
        BBOX[-59.36,-78,-18.35,-71.99]],
    ID["EPSG",9698]]

Definition: ESRI Well Known Text

PROJCS["REDGEOMIN_UTM_zone_18S",
    GEOGCS["REDGEOMIN",
        DATUM["Red_Geodesica_Para_Mineria_en_Chile",
            SPHEROID["GRS_1980",6378137.0,298.257222101]],
        PRIMEM["Greenwich",0.0],
        UNIT["Degree",0.0174532925199433]],
    PROJECTION["Transverse_Mercator"],
    PARAMETER["False_Easting",500000.0],
    PARAMETER["False_Northing",10000000.0],
    PARAMETER["Central_Meridian",-75.0],
    PARAMETER["Scale_Factor",0.9996],
    PARAMETER["Latitude_Of_Origin",0.0],
    UNIT["Meter",1.0]]

Definition: PROJ.4

+proj=utm +zone=18 +south +ellps=GRS80 +units=m +no_defs +type=crs

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:9698","+proj=utm +zone=18 +south +ellps=GRS80 +units=m +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "ProjectedCRS",
    "name": "REDGEOMIN / UTM zone 18S",
    "base_crs": {
        "type": "GeographicCRS",
        "name": "REDGEOMIN",
        "datum": {
            "type": "DynamicGeodeticReferenceFrame",
            "name": "Red Geodesica Para Mineria en Chile",
            "frame_reference_epoch": 2024,
            "ellipsoid": {
                "name": "GRS 1980",
                "semi_major_axis": 6378137,
                "inverse_flattening": 298.257222101
            }
        },
        "coordinate_system": {
            "subtype": "ellipsoidal",
            "axis": [
                {
                    "name": "Geodetic latitude",
                    "abbreviation": "Lat",
                    "direction": "north",
                    "unit": "degree"
                },
                {
                    "name": "Geodetic longitude",
                    "abbreviation": "Lon",
                    "direction": "east",
                    "unit": "degree"
                }
            ]
        },
        "id": {
            "authority": "EPSG",
            "code": 9696
        },
        "remarks": "REDGEOMIN coordinates are updated on a biannual basis identified using syntax \"REDGEOMIN([frame]@[epoch]\", e.g. REDGEOMIN(IGS20@2024.0), REDGEOMIN(IGS20@2024.5), etc. This EPSG record references any of these updates without distinction. Users should include the update used in the metadata of  their spatial data metadata. Data should be reduced to this epoch using the ADELA deformation model."
    },
    "conversion": {
        "name": "UTM zone 18S",
        "method": {
            "name": "Transverse Mercator",
            "id": {
                "authority": "EPSG",
                "code": 9807
            }
        },
        "parameters": [
            {
                "name": "Latitude of natural origin",
                "value": 0,
                "unit": "degree",
                "id": {
                    "authority": "EPSG",
                    "code": 8801
                }
            },
            {
                "name": "Longitude of natural origin",
                "value": -75,
                "unit": "degree",
                "id": {
                    "authority": "EPSG",
                    "code": 8802
                }
            },
            {
                "name": "Scale factor at natural origin",
                "value": 0.9996,
                "unit": "unity",
                "id": {
                    "authority": "EPSG",
                    "code": 8805
                }
            },
            {
                "name": "False easting",
                "value": 500000,
                "unit": "metre",
                "id": {
                    "authority": "EPSG",
                    "code": 8806
                }
            },
            {
                "name": "False northing",
                "value": 10000000,
                "unit": "metre",
                "id": {
                    "authority": "EPSG",
                    "code": 8807
                }
            }
        ]
    },
    "coordinate_system": {
        "subtype": "Cartesian",
        "axis": [
            {
                "name": "Easting",
                "abbreviation": "E",
                "direction": "east",
                "unit": "metre"
            },
            {
                "name": "Northing",
                "abbreviation": "N",
                "direction": "north",
                "unit": "metre"
            }
        ]
    },
    "scope": "Minerals management.",
    "area": "Chile - 78°W to 72°W, onshore and offshore.",
    "bbox": {
        "south_latitude": -59.36,
        "west_longitude": -78,
        "north_latitude": -18.35,
        "east_longitude": -71.99
    },
    "id": {
        "authority": "EPSG",
        "code": 9698
    }
}

Definition: GeoServer

9698=PROJCS["REDGEOMIN / UTM zone 18S",GEOGCS["REDGEOMIN",DATUM["Red_Geodesica_Para_Mineria_en_Chile",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","1304"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","9696"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",-75],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",500000],PARAMETER["false_northing",10000000],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","9698"]]

Definition: MapServer - MAPfile

PROJECTION
	"proj=utm"
	"zone=18"
	"south"
	"ellps=GRS80"
	"units=m"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=utm +zone=18 +south +ellps=GRS80 +units=m +no_defs +type=crs">
	<Layer srs="+proj=utm +zone=18 +south +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 ( 9698, 'EPSG', 9698, '+proj=utm +zone=18 +south +ellps=GRS80 +units=m +no_defs +type=crs', 'PROJCS["REDGEOMIN / UTM zone 18S",GEOGCS["REDGEOMIN",DATUM["Red_Geodesica_Para_Mineria_en_Chile",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","1304"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","9696"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",-75],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",500000],PARAMETER["false_northing",10000000],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","9698"]]');