Yebes Observatory

Yebes Observatory is an observing and technology-development site of Spain's National Geographic Institute. The site combines radio astronomy and geodetic observing infrastructure, including the RAEGE radio telescope used for VGOS measurements and a satellite laser ranging station. ILRS identifies the laser station as YEBL, number 7817. This record represents the Yebes site as one facility, with its map position taken from the laser station's published reference coordinates. Sources: [ILRS station profile](https://ilrs.gsfc.nasa.gov/network/stations/active/YEBL_station_info.html); [ILRS operational station inventory](https://ilrs.gsfc.nasa.gov/network/stations/active/index.html); [institutional site information](https://raege.eu/yeb/). Sources checked 17 October 2026.