Local ties survey at San Fernando Naval Observatory

A local ties survey in the San Fernando Naval Observatory (ROA: Real Observatorio de la Armada) was carried out by the Instituto Geografico Nacional de Espana (IGNE) team during the summer of 2009. A SLR station (SFEL) contributing to the International Laser Ranging Service (ILRS) and a Continuous GPS receiver (SFER), contributing to the International GNSS Service (IGS) are collocated at ROA since 1996. Another CGPS receiver (ROAP) was installed a couple of years ago to contribute to the IGS Time Transfer Experiment.