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Method: Position Vector transformation (geog2D domain)
Remarks: Parameter values from TM75 to ETRS89 (2) (code 1953). Assumes each pair of (i) TM65 and TM75, and (ii) ETRS89 and WGS 84, can be considered the same to within the accuracy of the transformation.
Information source: OGP
Revision date: 2020-03-14
Unit: metre
Geodetic CRS: TM65
Datum: TM65
Ellipsoid: Airy Modified 1849
Prime meridian: Greenwich
Data source: EPSG
Information source: Ordnance Survey of Ireland
Revision date: 1995-06-02
Scope: Engineering survey, topographic mapping.
Remarks: Superseded by IRENET95 / Irish Transverse Mercator (code 2157) from 1/1/2001. Deprecated due to change of name - see 29902.
Area of use: Ireland - onshore. United Kingdom (UK) - Northern Ireland (Ulster) - onshore.
Coordinate system: Cartesian 2D CS. Axes: easting, northing (E,N). Orientations: east, north. UoM: m.
&stroke=red&width=2&path=51.39,-10.56|55.43,-10.56|55.43,-5.34|51.39,-5.34|51.39,-10.56)
Center coordinates
203374.16 239960.74
Projected bounds:
21861.71 15177.48
385198.22 468039.71
WGS84 bounds:
-10.56 51.39
-5.34 55.43
Definition: OGC Well Known Text
PROJCS["TM65 / Irish National Grid", GEOGCS["TM65", DATUM["TM65", SPHEROID["Airy Modified 1849",6377340.189,299.3249646], TOWGS84[482.5,-130.6,564.6,-1.042,-0.214,-0.631,8.15]], PRIMEM["Greenwich",0, AUTHORITY["EPSG","8901"]], UNIT["degree",0.0174532925199433, AUTHORITY["EPSG","9122"]], AUTHORITY["EPSG","4299"]], PROJECTION["Transverse_Mercator"], PARAMETER["latitude_of_origin",53.5], PARAMETER["central_meridian",-8], PARAMETER["scale_factor",1.000035], PARAMETER["false_easting",200000], PARAMETER["false_northing",250000], UNIT["metre",1, AUTHORITY["EPSG","9001"]], AXIS["Easting",EAST], AXIS["Northing",NORTH], AUTHORITY["EPSG","29900"]]
Definition: OGC Well Known Text 2 (2019)
PROJCRS["TM65 / Irish National Grid", BASEGEOGCRS["TM65", DATUM["TM65", ELLIPSOID["Airy Modified 1849",6377340.189,299.3249646, LENGTHUNIT["metre",1]]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], ID["EPSG",4299]], CONVERSION["Irish National Grid", METHOD["Transverse Mercator", ID["EPSG",9807]], PARAMETER["Latitude of natural origin",53.5, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8801]], PARAMETER["Longitude of natural origin",-8, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8802]], PARAMETER["Scale factor at natural origin",1.000035, SCALEUNIT["unity",1], ID["EPSG",8805]], PARAMETER["False easting",200000, LENGTHUNIT["metre",1], ID["EPSG",8806]], PARAMETER["False northing",250000, 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["Engineering survey, topographic mapping."], AREA["Ireland - onshore. United Kingdom (UK) - Northern Ireland (Ulster) - onshore."], BBOX[51.39,-10.56,55.43,-5.34]], ID["EPSG",29900]]
Definition: ESRI Well Known Text
PROJCS["TM65_Irish_Grid", GEOGCS["GCS_TM65", DATUM["D_TM65", SPHEROID["Airy_Modified",6377340.189,299.3249646]], PRIMEM["Greenwich",0.0], UNIT["Degree",0.0174532925199433]], PROJECTION["Transverse_Mercator"], PARAMETER["False_Easting",200000.0], PARAMETER["False_Northing",250000.0], PARAMETER["Central_Meridian",-8.0], PARAMETER["Scale_Factor",1.000035], PARAMETER["Latitude_Of_Origin",53.5], UNIT["Meter",1.0]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "ProjectedCRS", "name": "TM65 / Irish National Grid", "base_crs": { "name": "TM65", "datum": { "type": "GeodeticReferenceFrame", "name": "TM65", "ellipsoid": { "name": "Airy Modified 1849", "semi_major_axis": 6377340.189, "inverse_flattening": 299.3249646 } }, "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": 4299 } }, "conversion": { "name": "Irish National Grid", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 53.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -8, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 1.000035, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 200000, "unit": "metre", "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 250000, "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": "Engineering survey, topographic mapping.", "area": "Ireland - onshore. United Kingdom (UK) - Northern Ireland (Ulster) - onshore.", "bbox": { "south_latitude": 51.39, "west_longitude": -10.56, "north_latitude": 55.43, "east_longitude": -5.34 }, "id": { "authority": "EPSG", "code": 29900 } }
Definition: GeoServer
29900=PROJCS["TM65 / Irish National Grid",GEOGCS["TM65",DATUM["TM65",SPHEROID["Airy Modified 1849",6377340.189,299.3249646],TOWGS84[482.5,-130.6,564.6,-1.042,-0.214,-0.631,8.15]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4299"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",53.5],PARAMETER["central_meridian",-8],PARAMETER["scale_factor",1.000035],PARAMETER["false_easting",200000],PARAMETER["false_northing",250000],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","29900"]]
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=tmerc +lat_0=53.5 +lon_0=-8 +k=1.000035 +x_0=200000 +y_0=250000 +a=6377340.189 +rf=299.3249646 +towgs84=482.5,-130.6,564.6,-1.042,-0.214,-0.631,8.15 +units=m +no_defs +type=crs"> <Layer srs="+proj=tmerc +lat_0=53.5 +lon_0=-8 +k=1.000035 +x_0=200000 +y_0=250000 +a=6377340.189 +rf=299.3249646 +towgs84=482.5,-130.6,564.6,-1.042,-0.214,-0.631,8.15 +units=m +no_defs +type=crs"> </Layer> </Map>
Definition: SQL (PostGIS)
INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 29900, 'EPSG', 29900, '+proj=tmerc +lat_0=53.5 +lon_0=-8 +k=1.000035 +x_0=200000 +y_0=250000 +a=6377340.189 +rf=299.3249646 +towgs84=482.5,-130.6,564.6,-1.042,-0.214,-0.631,8.15 +units=m +no_defs +type=crs', 'PROJCS["TM65 / Irish National Grid",GEOGCS["TM65",DATUM["TM65",SPHEROID["Airy Modified 1849",6377340.189,299.3249646],TOWGS84[482.5,-130.6,564.6,-1.042,-0.214,-0.631,8.15]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4299"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",53.5],PARAMETER["central_meridian",-8],PARAMETER["scale_factor",1.000035],PARAMETER["false_easting",200000],PARAMETER["false_northing",250000],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","29900"]]');
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