US survey foot
Engineering survey, topographic mapping.
None
United States (USA) - Alaska onshore north of 54°30'N and west of 168°W.
Data Source: EPSG v11.016 2024-08-31
Datum: North American Datum 1927
Coordinate System: cartesian
Projection: Alaska CS27 zone 9
Geodetic CRS: NAD27
PROJCRS["NAD27 / Alaska zone 9",
BASEGEOGCRS["NAD27",
DATUM["North American Datum 1927",
ELLIPSOID["Clarke 1866",6378206.4,294.978698213898,
LENGTHUNIT["metre",1]]],
PRIMEM["Greenwich",0,
ANGLEUNIT["degree",0.0174532925199433]],
ID["EPSG",4267]],
CONVERSION["Alaska CS27 zone 9",
METHOD["Transverse Mercator",
ID["EPSG",9807]],
PARAMETER["Latitude of natural origin",54,
ANGLEUNIT["degree",0.0174532925199433],
ID["EPSG",8801]],
PARAMETER["Longitude of natural origin",-170,
ANGLEUNIT["degree",0.0174532925199433],
ID["EPSG",8802]],
PARAMETER["Scale factor at natural origin",0.9999,
SCALEUNIT["unity",1],
ID["EPSG",8805]],
PARAMETER["False easting",600000,
LENGTHUNIT["US survey foot",0.304800609601219],
ID["EPSG",8806]],
PARAMETER["False northing",0,
LENGTHUNIT["US survey foot",0.304800609601219],
ID["EPSG",8807]]],
CS[Cartesian,2],
AXIS["easting (X)",east,
ORDER[1],
LENGTHUNIT["US survey foot",0.304800609601219]],
AXIS["northing (Y)",north,
ORDER[2],
LENGTHUNIT["US survey foot",0.304800609601219]],
USAGE[
SCOPE["Engineering survey, topographic mapping."],
AREA["United States (USA) - Alaska onshore north of 54°30'N and west of 168°W."],
BBOX[56.49,-173.16,65.82,-168]],
ID["EPSG",26739]]
{
"$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
"type": "ProjectedCRS",
"name": "NAD27 / Alaska zone 9",
"base_crs": {
"name": "NAD27",
"datum": {
"type": "GeodeticReferenceFrame",
"name": "North American Datum 1927",
"ellipsoid": {
"name": "Clarke 1866",
"semi_major_axis": 6378206.4,
"semi_minor_axis": 6356583.8
}
},
"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": 4267
}
},
"conversion": {
"name": "Alaska CS27 zone 9",
"method": {
"name": "Transverse Mercator",
"id": {
"authority": "EPSG",
"code": 9807
}
},
"parameters": [
{
"name": "Latitude of natural origin",
"value": 54,
"unit": "degree",
"id": {
"authority": "EPSG",
"code": 8801
}
},
{
"name": "Longitude of natural origin",
"value": -170,
"unit": "degree",
"id": {
"authority": "EPSG",
"code": 8802
}
},
{
"name": "Scale factor at natural origin",
"value": 0.9999,
"unit": "unity",
"id": {
"authority": "EPSG",
"code": 8805
}
},
{
"name": "False easting",
"value": 600000,
"unit": {
"type": "LinearUnit",
"name": "US survey foot",
"conversion_factor": 0.304800609601219
},
"id": {
"authority": "EPSG",
"code": 8806
}
},
{
"name": "False northing",
"value": 0,
"unit": {
"type": "LinearUnit",
"name": "US survey foot",
"conversion_factor": 0.304800609601219
},
"id": {
"authority": "EPSG",
"code": 8807
}
}
]
},
"coordinate_system": {
"subtype": "Cartesian",
"axis": [
{
"name": "Easting",
"abbreviation": "X",
"direction": "east",
"unit": {
"type": "LinearUnit",
"name": "US survey foot",
"conversion_factor": 0.304800609601219
}
},
{
"name": "Northing",
"abbreviation": "Y",
"direction": "north",
"unit": {
"type": "LinearUnit",
"name": "US survey foot",
"conversion_factor": 0.304800609601219
}
}
]
},
"scope": "Engineering survey, topographic mapping.",
"area": "United States (USA) - Alaska onshore north of 54°30'N and west of 168°W.",
"bbox": {
"south_latitude": 56.49,
"west_longitude": -173.16,
"north_latitude": 65.82,
"east_longitude": -168
},
"id": {
"authority": "EPSG",
"code": 26739
}
}
{'crs_wkt': 'PROJCRS["NAD27 / Alaska zone 9",BASEGEOGCRS["NAD27",DATUM["North '
'American Datum 1927",ELLIPSOID["Clarke '
'1866",6378206.4,294.978698213898,LENGTHUNIT["metre",1]]],PRIMEM["Greenwich",0,ANGLEUNIT["degree",0.0174532925199433]],ID["EPSG",4267]],CONVERSION["Alaska '
'CS27 zone 9",METHOD["Transverse '
'Mercator",ID["EPSG",9807]],PARAMETER["Latitude of natural '
'origin",54,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8801]],PARAMETER["Longitude '
'of natural '
'origin",-170,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8802]],PARAMETER["Scale '
'factor at natural '
'origin",0.9999,SCALEUNIT["unity",1],ID["EPSG",8805]],PARAMETER["False '
'easting",600000,LENGTHUNIT["US survey '
'foot",0.304800609601219],ID["EPSG",8806]],PARAMETER["False '
'northing",0,LENGTHUNIT["US survey '
'foot",0.304800609601219],ID["EPSG",8807]]],CS[Cartesian,2],AXIS["easting '
'(X)",east,ORDER[1],LENGTHUNIT["US survey '
'foot",0.304800609601219]],AXIS["northing '
'(Y)",north,ORDER[2],LENGTHUNIT["US survey '
'foot",0.304800609601219]],USAGE[SCOPE["Engineering survey, '
'topographic mapping."],AREA["United States (USA) - Alaska onshore '
"north of 54°30'N and west of "
'168°W."],BBOX[56.49,-173.16,65.82,-168]],ID["EPSG",26739]]',
'false_easting': 600000.0,
'false_northing': 0.0,
'geographic_crs_name': 'NAD27',
'grid_mapping_name': 'transverse_mercator',
'horizontal_datum_name': 'North American Datum 1927',
'inverse_flattening': 294.9786982138982,
'latitude_of_projection_origin': 54.0,
'longitude_of_central_meridian': -170.0,
'longitude_of_prime_meridian': 0.0,
'prime_meridian_name': 'Greenwich',
'projected_crs_name': 'NAD27 / Alaska zone 9',
'reference_ellipsoid_name': 'Clarke 1866',
'scale_factor_at_central_meridian': 0.9999,
'semi_major_axis': 6378206.4,
'semi_minor_axis': 6356583.8}