Ishioka Geodetic Observing Station

Ishioka is a Japanese geodetic observing site where the Geospatial Information Authority of Japan operates a VLBI station in the international geodetic network. ILRS also identifies a colocated laser-ranging installation as ISHL, station 7317, in engineering status; that listing does not establish routine operational SLR service. This record represents the physical observing site, with its map position taken from the official individual ILRS site coordinates. The facility's operational classification refers to its established VLBI role. Sources: [Official source 1](https://www.gsi.go.jp/ENGLISH/page_e30214.html); [Official source 2](https://ivscc.gsfc.nasa.gov/about/org/components/ns-list.html); [Official source 3](https://ilrs.gsfc.nasa.gov/network/stations/engineering/ISHL_general.html); [Official source 4](https://ilrs.gsfc.nasa.gov/network/stations/engineering/index.html). Sources checked 17 October 2026.