Geocentric translations (geog2D domain)
Derived in 1989 by ONI for Amoco.
Trinidad Ministry of Energy and Energy Industries.
2020-03-14
degree (supplier to define representation)
EPSG
Ordnance Survey International.
2017-06-13
Geodesy.
Extended to Tobago as Naparima 1972. (Note: Naparima 1972 is not used in Trinidad).
Trinidad and Tobago - Trinidad - onshore.
Ellipsoidal 2D CS. Axes: latitude, longitude. Orientations: north, east. UoM: degree
Definition: OGC Well Known Text
GEOGCS["Naparima 1955", DATUM["Naparima_1955", SPHEROID["International 1924",6378388,297], TOWGS84[-0.465,372.095,171.736,0,0,0,0]], PRIMEM["Greenwich",0, AUTHORITY["EPSG","8901"]], UNIT["degree",0.0174532925199433, AUTHORITY["EPSG","9122"]], AUTHORITY["EPSG","4158"]]
Definition: OGC Well Known Text 2 (2019)
GEOGCRS["Naparima 1955", DATUM["Naparima 1955", ELLIPSOID["International 1924",6378388,297, LENGTHUNIT["metre",1]]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], CS[ellipsoidal,2], AXIS["geodetic latitude (Lat)",north, ORDER[1], ANGLEUNIT["degree",0.0174532925199433]], AXIS["geodetic longitude (Lon)",east, ORDER[2], ANGLEUNIT["degree",0.0174532925199433]], USAGE[ SCOPE["Geodesy."], AREA["Trinidad and Tobago - Trinidad - onshore."], BBOX[9.99,-61.98,10.9,-60.85]], ID["EPSG",4158]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "GeographicCRS", "name": "Naparima 1955", "datum": { "type": "GeodeticReferenceFrame", "name": "Naparima 1955", "ellipsoid": { "name": "International 1924", "semi_major_axis": 6378388, "inverse_flattening": 297 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "scope": "Geodesy.", "area": "Trinidad and Tobago - Trinidad - onshore.", "bbox": { "south_latitude": 9.99, "west_longitude": -61.98, "north_latitude": 10.9, "east_longitude": -60.85 }, "id": { "authority": "EPSG", "code": 4158 } }
Definition: GeoServer
4158=GEOGCS["Naparima 1955",DATUM["Naparima_1955",SPHEROID["International 1924",6378388,297],TOWGS84[-0.465,372.095,171.736,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4158"]]
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=longlat +ellps=intl +towgs84=-0.465,372.095,171.736,0,0,0,0 +no_defs +type=crs"> <Layer srs="+proj=longlat +ellps=intl +towgs84=-0.465,372.095,171.736,0,0,0,0 +no_defs +type=crs"> </Layer> </Map>
Definition: SQL (PostGIS)
INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 4158, 'EPSG', 4158, '+proj=longlat +ellps=intl +towgs84=-0.465,372.095,171.736,0,0,0,0 +no_defs +type=crs', 'GEOGCS["Naparima 1955",DATUM["Naparima_1955",SPHEROID["International 1924",6378388,297],TOWGS84[-0.465,372.095,171.736,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4158"]]');