9523=COMPD_CS["NAD83(2011) + VIVD09 height",GEOGCS["NAD83(2011)",DATUM["NAD83_National_Spatial_Reference_System_2011",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","1116"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","6318"]],VERT_CS["VIVD09 height",VERT_DATUM["Virgin Islands Vertical Datum of 2009",2005,AUTHORITY["EPSG","1124"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","6642"]],AUTHORITY["EPSG","9523"]]