Graz Satellite Laser Ranging Station

The Graz satellite laser ranging station is based at Lustbühel Observatory and is operated by the Space Research Institute of the Austrian Academy of Sciences. Its ILRS identity is GRZL, station 7839. The station measures satellite ranges using timed laser returns; its published system log also documents a laser dedicated to space-debris ranging. The mapped position is the station reference position published by ILRS, rather than the centre of Graz. Sources: [ILRS station profile](https://ilrs.gsfc.nasa.gov/network/stations/active/GRZL_station_info.html); [ILRS operational station inventory](https://ilrs.gsfc.nasa.gov/network/stations/active/index.html). Sources checked 17 October 2026.