mehpgn.las mehpgn.los
Parameter files are from NAD83 to NAD83(HARN) (13) (code 1486) assuming that NAD83(HARN) is equivalent to WGS 84 within the accuracy of the transformation.
OGP
2021-09-10
US survey foot
EPSG
U.S. National Geodetic Survey, http://www.ngs.noaa.gov/
2008-05-28
Engineering survey, topographic mapping.
State law defines use of US survey feet. Federal definition is metric - see code 26984. For applications with an accuracy of better than 3ft, replaced by NAD83(HARN) / SPCS.
Cartesian 2D CS. Axes: easting, northing (X,Y). Orientations: east, north. UoM: ftUS.
3253195.06 884946.77
2705905.06 75323.21
3823419.63 1707415.74
-71.09 43.04
-66.91 47.47
Definition: OGC Well Known Text 2 (2019)
PROJCRS["NAD83 / Maine West (ftUS)", BASEGEOGCRS["NAD83", DATUM["North American Datum 1983", ELLIPSOID["GRS 1980",6378137,298.257222101, LENGTHUNIT["metre",1]]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], ID["EPSG",4269]], CONVERSION["SPCS83 Maine West zone (US survey foot)", METHOD["Transverse Mercator", ID["EPSG",9807]], PARAMETER["Latitude of natural origin",42.8333333333333, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8801]], PARAMETER["Longitude of natural origin",-70.1666666666667, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8802]], PARAMETER["Scale factor at natural origin",0.999966667, SCALEUNIT["unity",1], ID["EPSG",8805]], PARAMETER["False easting",2952750, 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) - Maine - counties of Androscoggin; Cumberland; Franklin; Kennebec; Lincoln; Oxford; Sagadahoc; Somerset; York."], BBOX[43.04,-71.09,46.58,-69.26]], ID["EPSG",26848]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "ProjectedCRS", "name": "NAD83 / Maine West (ftUS)", "base_crs": { "name": "NAD83", "datum": { "type": "GeodeticReferenceFrame", "name": "North American Datum 1983", "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": 4269 } }, "conversion": { "name": "SPCS83 Maine West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 42.8333333333333, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -70.1666666666667, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999966667, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 2952750, "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) - Maine - counties of Androscoggin; Cumberland; Franklin; Kennebec; Lincoln; Oxford; Sagadahoc; Somerset; York.", "bbox": { "south_latitude": 43.04, "west_longitude": -71.09, "north_latitude": 46.58, "east_longitude": -69.26 }, "id": { "authority": "EPSG", "code": 26848 } }