Well Known Text
 
WKT Version 2
COORDINATEOPERATION["St. Helena Tritan to SHGD2015 (1)",VERSION["ENRD-Shn Hel"],SOURCECRS[GEOGCRS["St. Helena Tritan",DATUM["St. Helena Tritan",ELLIPSOID["WGS 84",6378137,298.257223563,LENGTHUNIT["metre",1,ID["EPSG",9001]],ID["EPSG",7030]],ID["EPSG",1173]],CS[ellipsoidal,2,ID["EPSG",6422]],AXIS["Geodetic latitude (Lat)",north],AXIS["Geodetic longitude (Lon)",east],ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],ID["EPSG",7881]]],TARGETCRS[GEOGCRS["SHGD2015",DATUM["St. Helena Geodetic Datum 2015",ELLIPSOID["GRS 1980",6378137,298.257222101,LENGTHUNIT["metre",1,ID["EPSG",9001]],ID["EPSG",7019]],ID["EPSG",1174]],CS[ellipsoidal,2,ID["EPSG",6422]],AXIS["Geodetic latitude (Lat)",north],AXIS["Geodetic longitude (Lon)",east],ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],ID["EPSG",7886]]],METHOD["Geocentric translations (geog2D domain)",ID["EPSG",9603]],PARAMETER["X-axis translation",-0.077,LENGTHUNIT["metre",1,ID["EPSG",9001]],ID["EPSG",8605]],PARAMETER["Y-axis translation",0.079,LENGTHUNIT["metre",1,ID["EPSG",9001]],ID["EPSG",8606]],PARAMETER["Z-axis translation",0.086,LENGTHUNIT["metre",1,ID["EPSG",9001]],ID["EPSG",8607]],OPERATIONACCURACY[0.05],ID["EPSG",7897]]