metre
Engineering survey and topographic mapping for railway applications.
None
United Kingdom (UK) - on or related to the complex of rail routes in the East of Scotland, incorporating the route from Tweedbank through the Borders to Edinburgh; the line from Edinburgh to Aberdeen; routes via Kirkaldy and Cowdenbeath; and routes via Leuchars and Perth to Dundee.
Data Source: EPSG v11.016 2024-08-31
Datum: EOS21 Intermediate Reference Frame
Coordinate System: Undefined
Projection: Undefined
Geodetic CRS: Undefined
COMPOUNDCRS["EOS21 Grid + ODN height",
PROJCRS["EOS21 Grid",
BASEGEOGCRS["EOS21-IRF",
DATUM["EOS21 Intermediate Reference Frame",
ELLIPSOID["GRS 1980",6378137,298.257222101,
LENGTHUNIT["metre",1]]],
PRIMEM["Greenwich",0,
ANGLEUNIT["degree",0.0174532925199433]],
ID["EPSG",9739]],
CONVERSION["EOS21-TM",
METHOD["Transverse Mercator",
ID["EPSG",9807]],
PARAMETER["Latitude of natural origin",56.35,
ANGLEUNIT["degree",0.0174532925199433],
ID["EPSG",8801]],
PARAMETER["Longitude of natural origin",-2.75,
ANGLEUNIT["degree",0.0174532925199433],
ID["EPSG",8802]],
PARAMETER["Scale factor at natural origin",1,
SCALEUNIT["unity",1],
ID["EPSG",8805]],
PARAMETER["False easting",74996.927,
LENGTHUNIT["metre",1],
ID["EPSG",8806]],
PARAMETER["False northing",133508.35,
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]]],
VERTCRS["ODN height",
VDATUM["Ordnance Datum Newlyn"],
CS[vertical,1],
AXIS["gravity-related height (H)",up,
LENGTHUNIT["metre",1]]],
USAGE[
SCOPE["Engineering survey and topographic mapping for railway applications."],
AREA["United Kingdom (UK) - on or related to the complex of rail routes in the East of Scotland, incorporating the route from Tweedbank through the Borders to Edinburgh; the line from Edinburgh to Aberdeen; routes via Kirkaldy and Cowdenbeath; and routes via Leuchars and Perth to Dundee. "],
BBOX[55.55,-3.56,57.21,-1.94]],
ID["EPSG",9742]]
{
"$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
"type": "CompoundCRS",
"name": "EOS21 Grid + ODN height",
"components": [
{
"type": "ProjectedCRS",
"name": "EOS21 Grid",
"base_crs": {
"name": "EOS21-IRF",
"datum": {
"type": "GeodeticReferenceFrame",
"name": "EOS21 Intermediate Reference Frame",
"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": 9739
}
},
"conversion": {
"name": "EOS21-TM",
"method": {
"name": "Transverse Mercator",
"id": {
"authority": "EPSG",
"code": 9807
}
},
"parameters": [
{
"name": "Latitude of natural origin",
"value": 56.35,
"unit": "degree",
"id": {
"authority": "EPSG",
"code": 8801
}
},
{
"name": "Longitude of natural origin",
"value": -2.75,
"unit": "degree",
"id": {
"authority": "EPSG",
"code": 8802
}
},
{
"name": "Scale factor at natural origin",
"value": 1,
"unit": "unity",
"id": {
"authority": "EPSG",
"code": 8805
}
},
{
"name": "False easting",
"value": 74996.927,
"unit": "metre",
"id": {
"authority": "EPSG",
"code": 8806
}
},
{
"name": "False northing",
"value": 133508.35,
"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"
}
]
}
},
{
"type": "VerticalCRS",
"name": "ODN height",
"datum": {
"type": "VerticalReferenceFrame",
"name": "Ordnance Datum Newlyn"
},
"coordinate_system": {
"subtype": "vertical",
"axis": [
{
"name": "Gravity-related height",
"abbreviation": "H",
"direction": "up",
"unit": "metre"
}
]
}
}
],
"scope": "Engineering survey and topographic mapping for railway applications.",
"area": "United Kingdom (UK) - on or related to the complex of rail routes in the East of Scotland, incorporating the route from Tweedbank through the Borders to Edinburgh; the line from Edinburgh to Aberdeen; routes via Kirkaldy and Cowdenbeath; and routes via Leuchars and Perth to Dundee. ",
"bbox": {
"south_latitude": 55.55,
"west_longitude": -3.56,
"north_latitude": 57.21,
"east_longitude": -1.94
},
"id": {
"authority": "EPSG",
"code": 9742
}
}
{'crs_wkt': 'COMPOUNDCRS["EOS21 Grid + ODN height",PROJCRS["EOS21 '
'Grid",BASEGEOGCRS["EOS21-IRF",DATUM["EOS21 Intermediate Reference '
'Frame",ELLIPSOID["GRS '
'1980",6378137,298.257222101,LENGTHUNIT["metre",1]]],PRIMEM["Greenwich",0,ANGLEUNIT["degree",0.0174532925199433]],ID["EPSG",9739]],CONVERSION["EOS21-TM",METHOD["Transverse '
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'Kingdom (UK) - on or related to the complex of rail routes in the '
'East of Scotland, incorporating the route from Tweedbank through '
'the Borders to Edinburgh; the line from Edinburgh to Aberdeen; '
'routes via Kirkaldy and Cowdenbeath; and routes via Leuchars and '
'Perth to Dundee. '
'"],BBOX[55.55,-3.56,57.21,-1.94]],ID["EPSG",9742]]',
'false_easting': 74996.927,
'false_northing': 133508.35,
'geographic_crs_name': 'EOS21-IRF',
'geopotential_datum_name': 'Ordnance Datum Newlyn',
'grid_mapping_name': 'transverse_mercator',
'horizontal_datum_name': 'EOS21 Intermediate Reference Frame',
'inverse_flattening': 298.257222101,
'latitude_of_projection_origin': 56.35,
'longitude_of_central_meridian': -2.75,
'longitude_of_prime_meridian': 0.0,
'prime_meridian_name': 'Greenwich',
'projected_crs_name': 'EOS21 Grid',
'reference_ellipsoid_name': 'GRS 1980',
'scale_factor_at_central_meridian': 1.0,
'semi_major_axis': 6378137.0,
'semi_minor_axis': 6356752.314140356}