Since 2013, the Macao Cartography and Cadastre Bureau has cooperated with the Lands Department of Hong Kong to implement the "Data Sharing between Macao and Hong Kong Satellite Positioning Reference Stations". Both places share the data of satellite positioning reference stations to expand the coverage of their satellite positioning reference station services and complement each other. Users in the water area east in Macao and west in Hong Kong can use Hong Kong Satellite Positioning Reference Station Network (Satref) and MoSRef for satellite positioning. This plan is beneficial to promote resource sharing and cooperation in surveying and mapping between Hong Kong and Macao. Currently, registered users can download the raw data (RINEX v3.02) in the last three months of four sharing GNSS reference stations of Hong Kong from MoSRef. Besides, MoSRef offers the service of RTK corrections that included GNSS reference stations of Hong Kong to satisfy the needs of varied satellite positioning applications.

The distribution of the Sharing reference stations of Macao and Hong Kong

Basic information on the satellite positioning reference stations of Hong Kong:

	HKSL	HKNP	HKLT	HKMW
Year of establishment	2000	2004	2000	2004
Location	Siu Lang Shui, Tuen Mun	Ngong Ping, Lantau Island	Lam Tei, Tuen Mun	Mui Wo, Lantau Island
Type of receiving satellite	GPS、GLONASS and BeiDou	GPS、GLONASS and BeiDou	GPS、GLONASS and BeiDou	GPS、GLONASS and BeiDou
Receiver model	Leica GR50	Leica GR50	Leica GR50	Trimble NETR9
Antenna model	Leica AR25 R4	Leica AR25 R4	Leica AR25 R4	Leica AR25 R4
Data format	RINEX v3.02	RINEX v3.02	RINEX v3.02	RINEX v3.02
Coordinate system	ITRF2005	ITRF2005	ITRF2005	ITRF2005
Photo album	Connected with the Lands Department of Hong Kong	Connected with the Lands Department of Hong Kong	Connected with the Lands Department of Hong Kong	Connected with the Lands Department of Hong Kong

Description of data sharing of satellite positioning reference stations of Hong Kong:

• Observation data of Hong Kong reference stations are provided by the Lands Department of Hong Kong in the format of RINEX v3.02. The coordinates in the header of the RINEX file downloaded are based on the coordinate system of Macao(the ITRF2005 framework). For the ITRF2005 coordinates for Hong Kong reference stations, please refer to the relevant information on MoSRef website.
• The "coordinate calculation service" provided by MoSRef does not use the observation data of Hong Kong reference stations.
• The real-time network RTK correction message sent by the Macao Cartography and Cadastre Bureau includes the real-time data from Hong Kong reference stations.