http://inspire.ec.europa.eu/codelist/StationRankValue/2ndOrderBaseINSPIRE Registry teamJRC-INSPIRE-SUPPORT@ec.europa.euhttp://inspire.ec.europa.eu/registry2015-08-18 17:31 PM CEST2015-08-18 17:31 PM CEST2nd order baseHigh precision base station of lower importance maintained by an authority. It is used to tie relative measurements to absolute network by third party observers.