A diagram showing the organisation of the EPN is illustrated here . This permanent network consists of more than 100 GPS tracking stations distributed over 30 European countries. For many of the local networks the LDC will be identical with their Operational Centre.
All processing is done following specific international guidelines.
The subnetworks have been designed in such a way that each station has minimally three analysis centres. Thanks to this redundancy errors can be eliminated without any problems. This solution is send to the IGS where it is integrated in the global GPS network. A Central Bureau , which coordinates the activities of the tracking stations, data centres and analysis centres. It distributes standards and guidelines.