Hong Kong Satellite Positioning Reference Station Network (SatRef)

Survey and Mapping Office
[ Link to geodetic.gov.hk ]

Overview – Survey and Mapping Office (SMO) of Lands Department has applied new technology to improve the quality of services in recent years. It makes use of the Global Navigation Satellite System (GNSS) to develop a local satellite positioning system, named as “Hong Kong Satellite Positioning Reference Station Network” (SatRef). The network consists of 18 Continuously Operating Reference Stations (CORS) including an Integrity Monitoring station evenly distributed in Hong Kong. The stations receive GNSS satellite data round-the-clock and send it to a Data Centre for further processing and analysis. The products are disseminated to users for high accuracy positioning works. On the other hand, there is a Control Centre which is used to remotely control the servers in Data Centre. The whole SatRef system would be monitored in the Control Centre so as to ensure the services would not be interrupted.