Well Known Text
 
WKT Version 2
COORDINATEOPERATION["SRGI2013 to INAGeoid2020 v1 height (1)",VERSION["BIG-Idn INAGeoid20 v1"],SOURCECRS[GEOGCRS["SRGI2013", DYNAMIC[FRAMEEPOCH[2012.0]],DATUM["Sistem Referensi Geospasial Indonesia 2013",ELLIPSOID["WGS 84",6378137,298.257223563,LENGTHUNIT["metre",1,ID["EPSG",9001]],ID["EPSG",7030]],ID["EPSG",1293]],CS[ellipsoidal,3,ID["EPSG",6423]],AXIS["Geodetic latitude (Lat)",north,ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]]],AXIS["Geodetic longitude (Lon)",east,ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]]],AXIS["Ellipsoidal height (h)",up,LENGTHUNIT["metre",1,ID["EPSG",9001]]],ID["EPSG",9469]]],TARGETCRS[VERTCRS["INAGeoid2020 v1 height",VDATUM["Indonesian Geoid 2020 version 1",ID["EPSG",1294]],CS[vertical,1,ID["EPSG",6499]],AXIS["Gravity-related height (H)",up],LENGTHUNIT["metre",1,ID["EPSG",9001]],GEOIDMODEL["SRGI2013 to INAGeoid2020 v1 height (1)",ID["EPSG",9305]],ID["EPSG",9471]]],METHOD["Geographic3D to GravityRelatedHeight (gtx)",ID["EPSG",9665]],PARAMETERFILE["Geoid (height correction) model file","INAGEOID2020v1.gtx",ID["EPSG",8666]],OPERATIONACCURACY[0],ID["EPSG",9305]]