EPSG:10621

San Francisco International Airport B18 grid (ftUS)

Attributes

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.

Method: Local Orthographic

Area of use: USA - California - San Francisco international airport.

Description: (0,)

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SimpleMap
USA - California - San Francisco international airport.

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Definition: OGC Well Known Text

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]

Definition: OGC Well Known Text 2 (2019)

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]],
    ID["EPSG",10621]]

Definition: ESRI Well Known Text

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]

Definition: PROJ.4

+proj=ortho +lat_0=37.6289686531 +lon_0=-122.3939412704 +alpha=27.7928209333 +k=0.9999968 +x_0=0 +y_0=0

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:10621","+proj=ortho +lat_0=37.6289686531 +lon_0=-122.3939412704 +alpha=27.7928209333 +k=0.9999968 +x_0=0 +y_0=0");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "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
            }
        }
    ],
    "id": {
        "authority": "EPSG",
        "code": 10621
    }
}

Definition: GeoServer

10621=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]

Definition: MapServer - MAPfile

PROJECTION
	"proj=ortho"
	"lat_0=37.6289686531"
	"lon_0=-122.3939412704"
	"alpha=27.7928209333"
	"k=0.9999968"
	"x_0=0"
	"y_0=0"
END

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">
	<Layer srs="+proj=ortho +lat_0=37.6289686531 +lon_0=-122.3939412704 +alpha=27.7928209333 +k=0.9999968 +x_0=0 +y_0=0">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 10621, 'EPSG', 10621, '+proj=ortho +lat_0=37.6289686531 +lon_0=-122.3939412704 +alpha=27.7928209333 +k=0.9999968 +x_0=0 +y_0=0', '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]');