Sejong Satellite Laser Ranging Station

The Sejong satellite laser ranging site is operated by the Korea Astronomy and Space Science Institute. ILRS lists it as SEJL, station 7394, with DOMES reference 23907S002. This record represents the station's fixed observing location in Sejong, where laser returns from satellites provide range measurements for space geodesy. The map uses the reference coordinates in the individual station profile, which differ from the longitude shown in the ILRS overview map. Sources: [ILRS station profile](https://ilrs.gsfc.nasa.gov/network/stations/active/SEJL_station_info.html); [ILRS operational station inventory](https://ilrs.gsfc.nasa.gov/network/stations/active/index.html). Sources checked 17 October 2026.