conus.las conus.los
Parameter files are from NAD27 to NAD83 (1) (code 1241) assuming that NAD83 is equivalent to WGS 84 within the accuracy of this tfm. Uses NADCON method which expects longitudes positive west; EPSG CRS codes 4267 and 4326 have longitudes positive east.
OGP
2021-09-10
Engineering survey, topographic mapping.
Replaced by NAD27(76) / UTM 15N (code 2027) in Ontario, by NAD83 / UTM 15N (code 26915) elsewhere in Canada & USA, & by Mexican Datum of 1993 / UTM 15N (code 4488) in Mexico. See NAD27 / BLM 15N (ftUS) (code 32065) for ftUS equivalent used in US GoM.
Cartesian 2D CS. Axes: easting, northing (E,N). Orientations: east, north. UoM: m.
103659.62 4058884.24
-3354638.31 2633645.57
3354415.19 6129820.91
-129.17 23.81
-65.69 49.38
Definition: OGC Well Known Text 2 (2019)
PROJCRS["NAD27 / UTM zone 15N", 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["UTM zone 15N", METHOD["Transverse Mercator", ID["EPSG",9807]], PARAMETER["Latitude of natural origin",0, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8801]], PARAMETER["Longitude of natural origin",-93, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8802]], PARAMETER["Scale factor at natural origin",0.9996, SCALEUNIT["unity",1], ID["EPSG",8805]], PARAMETER["False easting",500000, LENGTHUNIT["metre",1], ID["EPSG",8806]], PARAMETER["False northing",0, 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]], USAGE[ SCOPE["Engineering survey, topographic mapping."], AREA["North America - between 96°W and 90°W. Canada - Manitoba; Nunavut; Ontario. Guatemala. Mexico. United States (USA) - Arkansas; Illinois; Iowa; Kansas; Louisiana; Michigan; Minnesota; Mississippi; Missouri; Nebraska; Oklahoma; Tennessee; Texas; Wisconsin. Onshore for Canadian Arctic and Central America, onshore and offshore for Gulf of Mexico (both US and Mexican sectors)."], BBOX[13.63,-96,81.96,-90]], ID["EPSG",26715]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "ProjectedCRS", "name": "NAD27 / UTM zone 15N", "base_crs": { "name": "NAD27", "datum": { "type": "GeodeticReferenceFrame", "name": "North American Datum 1927", "ellipsoid": { "name": "Clarke 1866", "semi_major_axis": 6378206.4, "inverse_flattening": 294.978698213898 } }, "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": "UTM zone 15N", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 0, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -93, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.9996, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 500000, "unit": "metre", "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "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" } ] }, "scope": "Engineering survey, topographic mapping.", "area": "North America - between 96°W and 90°W. Canada - Manitoba; Nunavut; Ontario. Guatemala. Mexico. United States (USA) - Arkansas; Illinois; Iowa; Kansas; Louisiana; Michigan; Minnesota; Mississippi; Missouri; Nebraska; Oklahoma; Tennessee; Texas; Wisconsin. Onshore for Canadian Arctic and Central America, onshore and offshore for Gulf of Mexico (both US and Mexican sectors).", "bbox": { "south_latitude": 13.63, "west_longitude": -96, "north_latitude": 81.96, "east_longitude": -90 }, "id": { "authority": "EPSG", "code": 26715 } }