EUREF Permanent Network

EUREF Permanent Network (EPN) is a European network of more than 300 continuously operating GNSS reference stations with precisely known coordinates referenced to the ETRS89. The EPN is the key instrument in the maintenance of ETRS89geodetic datum. The EPN stations collect continuously the observation data from high accuracy multi-GNSSreceivers. The data is processed in a distributed way in a few data processing centres. The EPN is created and maintained by a voluntary agreement of about 100 European agencies and universities. THE EPN activities are coordinated by EUREF.