May be taken as approximate transformation Puerto Rico to WGS 84 - see code 8583.
US Coast & Geodetic Survey www.ngs.noaa.gov NADCON readme file
1999-10-20
Geodesy.
See CRS code 4139 for recommended coordinate axis representation for the human interface.
Puerto Rico, US Virgin Islands and British Virgin Islands - onshore.
Ellipsoidal 2D CS. Axes: latitude, longitude. Orientations: north, east. UoM: dec deg