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Geodetic CRS: American Samoa 1962
Datum: American Samoa 1962
Ellipsoid: Clarke 1866
Prime meridian: Greenwich
Data source: EPSG
Information source: National Geodetic Survey, www.ngs.noaa.gov
Revision date: 2018-07-17
Scope: Geodesy.
Remarks: Uses NADCON5 method which expects longitudes positive east in range 0-360°; EPSG source and target CRSs have longitudes positive east in range -180° to +180°.
Method: NADCON5 (2D)
Area of use: American Samoa - Tutuila, Aunu'u, Ofu, Olesega and Ta'u islands.
Description: (0,)
Definition: OGC Well Known Text 2 (2019)
COORDINATEOPERATION["American Samoa 1962 to NAD83(HARN) (3)", VERSION["NGS-Asm Nadcon5"], SOURCECRS[ GEOGCRS["American Samoa 1962", DATUM["American Samoa 1962", ELLIPSOID["Clarke 1866",6378206.4,294.978698213898, LENGTHUNIT["metre",1]]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], CS[ellipsoidal,2], AXIS["geodetic latitude (Lat)",north, ORDER[1], ANGLEUNIT["degree",0.0174532925199433]], AXIS["geodetic longitude (Lon)",east, ORDER[2], ANGLEUNIT["degree",0.0174532925199433]], ID["EPSG",4169]]], TARGETCRS[ GEOGCRS["NAD83(HARN)", DATUM["NAD83 (High Accuracy Reference Network)", ELLIPSOID["GRS 1980",6378137,298.257222101, LENGTHUNIT["metre",1]]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], CS[ellipsoidal,2], AXIS["geodetic latitude (Lat)",north, ORDER[1], ANGLEUNIT["degree",0.0174532925199433]], AXIS["geodetic longitude (Lon)",east, ORDER[2], ANGLEUNIT["degree",0.0174532925199433]], ID["EPSG",4152]]], METHOD["NADCON5 (2D)", ID["EPSG",1074]], PARAMETERFILE["Latitude difference file","nadcon5.as62.nad83_1993.as.lat.trn.20160901.b"], PARAMETERFILE["Longitude difference file","nadcon5.as62.nad83_1993.as.lon.trn.20160901.b"], OPERATIONACCURACY[5.0], USAGE[ SCOPE["Geodesy."], AREA["American Samoa - Tutuila, Aunu'u, Ofu, Olesega and Ta'u islands."], BBOX[-14.43,-170.88,-14.11,-169.38]], ID["EPSG",8662], REMARK["Uses NADCON5 method which expects longitudes positive east in range 0-360°; EPSG source and target CRSs have longitudes positive east in range -180° to +180°."]]
Definition: JavaScript (Proj4js)
proj4.defs("EPSG:8662","+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +proj=gridshift +grids=us_noaa_nadcon5_as62_nad83_1993_as.tif +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1");
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "Transformation", "name": "American Samoa 1962 to NAD83(HARN) (3)", "source_crs": { "type": "GeographicCRS", "name": "American Samoa 1962", "datum": { "type": "GeodeticReferenceFrame", "name": "American Samoa 1962", "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": 4169 } }, "target_crs": { "type": "GeographicCRS", "name": "NAD83(HARN)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (High Accuracy Reference Network)", "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": 4152 } }, "method": { "name": "NADCON5 (2D)", "id": { "authority": "EPSG", "code": 1074 } }, "parameters": [ { "name": "Latitude difference file", "value": "nadcon5.as62.nad83_1993.as.lat.trn.20160901.b", "id": { "authority": "EPSG", "code": 8657 } }, { "name": "Longitude difference file", "value": "nadcon5.as62.nad83_1993.as.lon.trn.20160901.b", "id": { "authority": "EPSG", "code": 8658 } } ], "accuracy": "5.0", "scope": "Geodesy.", "area": "American Samoa - Tutuila, Aunu'u, Ofu, Olesega and Ta'u islands.", "bbox": { "south_latitude": -14.43, "west_longitude": -170.88, "north_latitude": -14.11, "east_longitude": -169.38 }, "id": { "authority": "EPSG", "code": 8662 }, "remarks": "Uses NADCON5 method which expects longitudes positive east in range 0-360°; EPSG source and target CRSs have longitudes positive east in range -180° to +180°." }
Definition: MapServer - MAPfile
PROJECTION "proj=pipeline" "step" "proj=axisswap" "order=2,1" "step" "proj=unitconvert" "xy_in=deg" "xy_out=rad" "step" "proj=gridshift" "grids=us_noaa_nadcon5_as62_nad83_1993_as.tif" "step" "proj=unitconvert" "xy_in=rad" "xy_out=deg" "step" "proj=axisswap" "order=2,1" END
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +proj=gridshift +grids=us_noaa_nadcon5_as62_nad83_1993_as.tif +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1"> <Layer srs="+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +proj=gridshift +grids=us_noaa_nadcon5_as62_nad83_1993_as.tif +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1"> </Layer> </Map>
Definition: SQL (PostGIS)
INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 8662, 'EPSG', 8662, '+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +proj=gridshift +grids=us_noaa_nadcon5_as62_nad83_1993_as.tif +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1', 'None');
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&stroke=red&width=2&path=-14.43,-170.88|-14.11,-170.88|-14.11,-169.38|-14.43,-169.38|-14.43,-170.88)