Name: NAD83(2011) to WGS 84 (1)
Method: Geocentric translations (geog2D domain)
Remarks: For many purposes NAD83(2011) can be considered to be coincident with WGS 84. This approximation ignores the ~2.2m offset of NAD83 from the geocentre, the low accuracy of the WGS 84 ensemble and the application of tectonic plate motion to WGS 84 data.
Information source: IOGP
Revision date: 2021-09-08
Unit: US survey foot
Geodetic CRS: NAD83(2011)
Datum: NAD83 (National Spatial Reference System 2011)
Ellipsoid: GRS 1980
Prime meridian: Greenwich
Data source: EPSG
Information source: San Francisco Enterprise GIS Program, Department of Technology, City and County of San Francisco.
Revision date: 2024-08-06
Scope: Engineering survey.
Area of use: USA - California - San Francisco international airport.
Coordinate system: Cartesian 2D CS. Axes: easting, northing (X,Y). Orientations: east, north. UoM: ftUS.
Center coordinates
-2549982.1 1659078.39
Projected bounds:
-17201760.71 -10620678.76
16256037.77 14790640.28
WGS84 bounds:
167.65 14.92
-63.88 74.71
Definition: OGC Well Known Text
PROJCS["NAD83(2011) / San Francisco SFO-B18 (ftUS)", GEOGCS["NAD83(2011)", DATUM["NAD83_National_Spatial_Reference_System_2011", SPHEROID["GRS 1980",6378137,298.257222101], TOWGS84[0,0,0,0,0,0,0]], PRIMEM["Greenwich",0, AUTHORITY["EPSG","8901"]], UNIT["degree",0.0174532925199433, AUTHORITY["EPSG","9122"]], AUTHORITY["EPSG","6318"]], PROJECTION["Local Orthographic"], PARAMETER["latitude_of_center",37.6289686531], PARAMETER["longitude_of_center",-122.3939412704], PARAMETER["azimuth",27.7928209333], PARAMETER["scale_factor",0.9999968], PARAMETER["false_easting",0], PARAMETER["false_northing",0], UNIT["US survey foot",0.304800609601219], AXIS["Easting",EAST], AXIS["Northing",NORTH], AUTHORITY["EPSG","10622"]]
Definition: OGC Well Known Text 2 (2019)
PROJCRS["NAD83(2011) / San Francisco SFO-B18 (ftUS)", BASEGEOGCRS["NAD83(2011)", DATUM["NAD83 (National Spatial Reference System 2011)", ELLIPSOID["GRS 1980",6378137,298.257222101, LENGTHUNIT["metre",1]]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], ID["EPSG",6318]], CONVERSION["San Francisco International Airport B18 grid (ftUS)", METHOD["Local Orthographic", ID["EPSG",1130]], PARAMETER["Latitude of projection centre",37.6289686531, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8811]], PARAMETER["Longitude of projection centre",-122.3939412704, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8812]], PARAMETER["Azimuth at projection centre",27.7928209333, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8813]], PARAMETER["Scale factor at projection centre",0.9999968, SCALEUNIT["unity",1], ID["EPSG",8815]], PARAMETER["Easting at projection centre",0, LENGTHUNIT["US survey foot",0.304800609601219], ID["EPSG",8816]], PARAMETER["Northing at projection centre",0, LENGTHUNIT["US survey foot",0.304800609601219], ID["EPSG",8817]]], 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."], AREA["USA - California - San Francisco international airport."], BBOX[37.58,-122.43,37.66,-122.33]], ID["EPSG",10622]]
Definition: ESRI Well Known Text
PROJCS["NAD83_2011_San_Francisco_SFO-B18(ftUS)", GEOGCS["GCS_NAD_1983_2011", DATUM["D_NAD_1983_2011", SPHEROID["GRS_1980",6378137.0,298.257222101]], PRIMEM["Greenwich",0.0], UNIT["Degree",0.0174532925199433]], PROJECTION["Local"], PARAMETER["False_Easting",0.0], PARAMETER["False_Northing",0.0], PARAMETER["Scale_Factor",0.9999968], PARAMETER["Azimuth",27.7928209333], PARAMETER["Longitude_Of_Center",-122.3939412704], PARAMETER["Latitude_Of_Center",37.6289686531], UNIT["US survey foot",0.304800609601219]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "ProjectedCRS", "name": "NAD83(2011) / San Francisco SFO-B18 (ftUS)", "base_crs": { "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "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": 6318 } }, "conversion": { "name": "San Francisco International Airport B18 grid (ftUS)", "method": { "name": "Local Orthographic", "id": { "authority": "EPSG", "code": 1130 } }, "parameters": [ { "name": "Latitude of projection centre", "value": 37.6289686531, "unit": "degree", "id": { "authority": "EPSG", "code": 8811 } }, { "name": "Longitude of projection centre", "value": -122.3939412704, "unit": "degree", "id": { "authority": "EPSG", "code": 8812 } }, { "name": "Azimuth at projection centre", "value": 27.7928209333, "unit": "degree", "id": { "authority": "EPSG", "code": 8813 } }, { "name": "Scale factor at projection centre", "value": 0.9999968, "unit": "unity", "id": { "authority": "EPSG", "code": 8815 } }, { "name": "Easting at projection centre", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8816 } }, { "name": "Northing at projection centre", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8817 } } ] }, "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.", "area": "USA - California - San Francisco international airport.", "bbox": { "south_latitude": 37.58, "west_longitude": -122.43, "north_latitude": 37.66, "east_longitude": -122.33 }, "id": { "authority": "EPSG", "code": 10622 } }
Definition: GeoServer
10622=PROJCS["NAD83(2011) / San Francisco SFO-B18 (ftUS)",GEOGCS["NAD83(2011)",DATUM["NAD83_National_Spatial_Reference_System_2011",SPHEROID["GRS 1980",6378137,298.257222101],TOWGS84[0,0,0,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","6318"]],PROJECTION["Local Orthographic"],PARAMETER["latitude_of_center",37.6289686531],PARAMETER["longitude_of_center",-122.3939412704],PARAMETER["azimuth",27.7928209333],PARAMETER["scale_factor",0.9999968],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["US survey foot",0.304800609601219],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","10622"]]
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=ortho +lat_0=37.6289686531 +lon_0=-122.3939412704 +alpha=27.7928209333 +k=0.9999968 +x_0=0 +y_0=0 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=us-ft +no_defs +type=crs"> <Layer srs="+proj=ortho +lat_0=37.6289686531 +lon_0=-122.3939412704 +alpha=27.7928209333 +k=0.9999968 +x_0=0 +y_0=0 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=us-ft +no_defs +type=crs"> </Layer> </Map>
Definition: SQL (PostGIS)
INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 10622, 'EPSG', 10622, '+proj=ortho +lat_0=37.6289686531 +lon_0=-122.3939412704 +alpha=27.7928209333 +k=0.9999968 +x_0=0 +y_0=0 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=us-ft +no_defs +type=crs', 'PROJCS["NAD83(2011) / San Francisco SFO-B18 (ftUS)",GEOGCS["NAD83(2011)",DATUM["NAD83_National_Spatial_Reference_System_2011",SPHEROID["GRS 1980",6378137,298.257222101],TOWGS84[0,0,0,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","6318"]],PROJECTION["Local Orthographic"],PARAMETER["latitude_of_center",37.6289686531],PARAMETER["longitude_of_center",-122.3939412704],PARAMETER["azimuth",27.7928209333],PARAMETER["scale_factor",0.9999968],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["US survey foot",0.304800609601219],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","10622"]]');