EPSG:3123 — PRS92 / Philippines zone 3

Projected · Philippines - zone III

Export Formats

OGC WKT

PROJCS[
    "PRS92 / Philippines zone 3",
    GEOGCS[
        "PRS92",
        DATUM[
            "Philippine_Reference_System_1992",
            SPHEROID["Clarke 1866",6378206.4,294.978698213898],
            TOWGS84[-127.62,-67.24,-47.04,3.068,-4.903,-1.578,-1.06]
        ],
        PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],
        UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],
        AUTHORITY["EPSG","4683"]
    ],
    PROJECTION["Transverse_Mercator"],
    PARAMETER["latitude_of_origin",0],
    PARAMETER["central_meridian",121],
    PARAMETER["scale_factor",0.99995],
    PARAMETER["false_easting",500000],
    PARAMETER["false_northing",0],
    UNIT["metre",1,AUTHORITY["EPSG","9001"]],
    AXIS["Easting",EAST],
    AXIS["Northing",NORTH],
    AUTHORITY["EPSG","3123"]
]

WKT2

PROJCRS[
    "PRS92 / Philippines zone 3",
    BASEGEOGCRS[
        "PRS92",
        DATUM[
            "Philippine Reference System 1992",
            ELLIPSOID[
                "Clarke 1866",
                6378206.4,
                294.978698213898,
                LENGTHUNIT["metre",1,ID["EPSG",9001]],
                ID["EPSG",7008]
            ],
            ID["EPSG",6683]
        ],
        ID["EPSG",4683]
    ],
    CONVERSION[
        "Philippines zone III",
        METHOD["Transverse Mercator",ID["EPSG",9807]],
        PARAMETER[
            "Latitude of natural origin",
            0,
            ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
            ID["EPSG",8801]
        ],
        PARAMETER[
            "Longitude of natural origin",
            121,
            ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
            ID["EPSG",8802]
        ],
        PARAMETER[
            "Scale factor at natural origin",
            0.99995,
            SCALEUNIT["unity",1,ID["EPSG",9201]],
            ID["EPSG",8805]
        ],
        PARAMETER[
            "False easting",
            500000,
            LENGTHUNIT["metre",1,ID["EPSG",9001]],
            ID["EPSG",8806]
        ],
        PARAMETER[
            "False northing",
            0,
            LENGTHUNIT["metre",1,ID["EPSG",9001]],
            ID["EPSG",8807]
        ],
        ID["EPSG",18173]
    ],
    CS[Cartesian,2,ID["EPSG",4499]],
    AXIS["Easting (X)",east],
    AXIS["Northing (Y)",north],
    LENGTHUNIT["metre",1,ID["EPSG",9001]],
    ID["EPSG",3123]
]

PROJ.4

+proj=tmerc +lat_0=0 +lon_0=121 +k=0.99995 +x_0=500000 +y_0=0 +ellps=clrk66 +towgs84=-127.62,-67.24,-47.04,3.068,-4.903,-1.578,-1.06 +units=m +no_defs +type=crs

Proj4js

How to add a projection to Proj4js? →

proj4.defs("EPSG:3123", "+proj=tmerc +lat_0=0 +lon_0=121 +k=0.99995 +x_0=500000 +y_0=0 +ellps=clrk66 +towgs84=-127.62,-67.24,-47.04,3.068,-4.903,-1.578,-1.06 +units=m +no_defs +type=crs");

JSON

{
  "type": "CoordinateReferenceSystem",
  "code": 3123,
  "name": "PRS92 / Philippines zone 3",
  "kind": "projected",
  "area": "Philippines - zone III",
  "unit": "metre",
  "bbox": [
    3,
    119.7,
    21.62,
    122.21
  ],
  "proj4": "+proj=tmerc +lat_0=0 +lon_0=121 +k=0.99995 +x_0=500000 +y_0=0 +ellps=clrk66 +towgs84=-127.62,-67.24,-47.04,3.068,-4.903,-1.578,-1.06 +units=m +no_defs +type=crs"
}

PostGIS

How to add a projection to PostGIS? →

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (3123, 'EPSG', 3123, '+proj=tmerc +lat_0=0 +lon_0=121 +k=0.99995 +x_0=500000 +y_0=0 +ellps=clrk66 +towgs84=-127.62,-67.24,-47.04,3.068,-4.903,-1.578,-1.06 +units=m +no_defs +type=crs', 'PROJCS["PRS92 / Philippines zone 3",GEOGCS["PRS92",DATUM["Philippine_Reference_System_1992",SPHEROID["Clarke 1866",6378206.4,294.978698213898],TOWGS84[-127.62,-67.24,-47.04,3.068,-4.903,-1.578,-1.06]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4683"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",121],PARAMETER["scale_factor",0.99995],PARAMETER["false_easting",500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","3123"]]');

MapServer

How to add a projection to MapServer? →

PROJECTION
  "+proj=tmerc"
  "+lat_0=0"
  "+lon_0=121"
  "+k=0.99995"
  "+x_0=500000"
  "+y_0=0"
  "+ellps=clrk66"
  "+towgs84=-127.62,-67.24,-47.04,3.068,-4.903,-1.578,-1.06"
  "+units=m"
  "+no_defs"
  "+type=crs"
END

GeoServer

How to add a projection to GeoServer? →

3123=PROJCS["PRS92 / Philippines zone 3",GEOGCS["PRS92",DATUM["Philippine_Reference_System_1992",SPHEROID["Clarke 1866",6378206.4,294.978698213898],TOWGS84[-127.62,-67.24,-47.04,3.068,-4.903,-1.578,-1.06]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4683"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",121],PARAMETER["scale_factor",0.99995],PARAMETER["false_easting",500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","3123"]]

Related Coordinate Systems

Available Transformations (1)

Transformations inherited from base CRS: EPSG:4683 (PRS92)

Transformation	Source → Target	Accuracy (m)
PRS92 to WGS 84 (1)	4683 → 4326	0.05

Other CRS using Philippine Reference System 1992

Frequently Asked Questions

How do I add EPSG:3123 to GeoServer?

Add the following definition to your GeoServer configuration:

3123=PROJCS["PRS92 / Philippines zone 3",GEOGCS["PRS92",DATUM["Philippine_Reference_System_1992",SPHEROID["Clarke 1866",6378206.4,294.978698213898],TOWGS84[-127.62,-67.24,-47.04,3.068,-4.903,-1.578,-1.06]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4683"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",121],PARAMETER["scale_factor",0.99995],PARAMETER["false_easting",500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","3123"]]

Read the full GeoServer guide →

How do I add EPSG:3123 to PostGIS?

Add the following definition to your PostGIS configuration:

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (3123, 'EPSG', 3123, '+proj=tmerc +lat_0=0 +lon_0=121 +k=0.99995 +x_0=500000 +y_0=0 +ellps=clrk66 +towgs84=-127.62,-67.24,-47.04,3.068,-4.903,-1.578,-1.06 +units=m +no_defs +type=crs', 'PROJCS["PRS92 / Philippines zone 3",GEOGCS["PRS92",DATUM["Philippine_Reference_System_1992",SPHEROID["Clarke 1866",6378206.4,294.978698213898],TOWGS84[-127.62,-67.24,-47.04,3.068,-4.903,-1.578,-1.06]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4683"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",121],PARAMETER["scale_factor",0.99995],PARAMETER["false_easting",500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","3123"]]');

Read the full PostGIS guide →

How do I add EPSG:3123 to MapServer?

Add the following definition to your MapServer configuration:

PROJECTION
  "+proj=tmerc"
  "+lat_0=0"
  "+lon_0=121"
  "+k=0.99995"
  "+x_0=500000"
  "+y_0=0"
  "+ellps=clrk66"
  "+towgs84=-127.62,-67.24,-47.04,3.068,-4.903,-1.578,-1.06"
  "+units=m"
  "+no_defs"
  "+type=crs"
END

Read the full MapServer guide →

How do I use EPSG:3123 with Proj4js?

Add the following definition to your Proj4js configuration:

proj4.defs("EPSG:3123", "+proj=tmerc +lat_0=0 +lon_0=121 +k=0.99995 +x_0=500000 +y_0=0 +ellps=clrk66 +towgs84=-127.62,-67.24,-47.04,3.068,-4.903,-1.578,-1.06 +units=m +no_defs +type=crs");

Read the full Proj4js guide →

Type

Projected

Unit

metre

Geodetic CRS

PRS92

Datum

Philippine Reference System 1992

Ellipsoid

Clarke 1866

Prime Meridian

Greenwich

Area of Use

Philippines - zone III

Philippines - approximately between 120°E and 122°E, onshore and offshore. Luzon (west of 122°E); Mi…

Coordinate System

Cartesian 2D CS. Axes: easting, northing (X,Y). Orientations: east, north. UoM: m.

Center Coordinates

494971.04 1361368.53

Projected Bounds

2392160.99 355370.21625114.32 331838.80

WGS84 Bounds

21.62 119.70122.21 3.00

Data Source

EPSG

Information Source

National Mapping and Resource Information Authority, Coast and Geodetic Survey Department.

Revision Date

2008-06-24

Scope

Engineering survey, topographic mapping.

Remarks

Replaces Luzon 1911 / Philippines zone III (CRS code 25393).

EPSG

3123