SES will provide a series of services for the Galileo European navigation system under a long-term agreement signed with Spaceopal, SES announced today. The contract is part of the Galileo Service Operator (GSOp) framework agreement between Spaceopal - a joint venture between Telespazio and DLR GfR mbH - and the European Global Navigation Satellite System Agency (GSA).Under the agreement, SES will provide Spaceopal with services to support the maintenance and seamless operations of the Galileo Global Navigation Satellite System (GNSS). SES will be responsible for in-orbit measurements for the Galileo satellite constellation and provide VSAT managed services to Telespazio for the Galileo Data Dissemination Network (GDDN).Galileo is a European Union Programme, managed and developed together with the European GNSS Agency (GSA) and the European Space Agency (ESA). It is Europe