Ellipsoid: Clarke 1866
Prime meridian: Greenwich
Data source: EPSG
Information source: Ordnance Survey of Great Britain and http://www.ngs.noaa.gov/ (NADCON readme file).
Revision date: 2008-06-24
Scope: Topographic mapping.
Remarks: NADCON conversion program provides transformation from Puerto Rico Datum to NAD83 (original 1986 realization) but making the transformation appear to user as if from NAD27.
Area of use: Puerto Rico, US Virgin Islands and British Virgin Islands - onshore.
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "GeodeticReferenceFrame", "name": "Puerto Rico", "ellipsoid": { "name": "Clarke 1866", "semi_major_axis": 6378206.4, "semi_minor_axis": 6356583.8 }, "scope": "Topographic mapping.", "area": "Puerto Rico, US Virgin Islands and British Virgin Islands - onshore.", "bbox": { "south_latitude": 17.62, "west_longitude": -67.97, "north_latitude": 18.78, "east_longitude": -64.25 }, "id": { "authority": "EPSG", "code": 6139 } }