The AFN consists of eight permanent, continuously operating, Geodetic GPS receivers on the Australian mainland and Tasmania. Image is gif_29k with white triangles showing the AFN stations on map of Australia. The network was initially observed during the International GPS Service for Geodynamics (IGS) Epoch '92 campaign, July-August, 1992. The AFN, in conjunction with additional sites beyond the Australian mainland, forms the Australian Regional GPS Network (ARGN).
Data from all the ARGN sites are automatically downloaded to Geoscience Australia in Canberra using a variety of dedicated phone lines, Internet and/or satellite communications. These data are being used for a range of scientific, geodynamic and other projects including integrity monitoring and legal traceability.
Download and view AFN coordinates and mark descriptions. [xls_16k]
Two independent solutions of the AFN were determined by Govind (1994) and Morgan et al (1994b). The AFN (and hence GDA94) station coordinates are based on the ITRF92 at epoch 1994.0 and are estimated to have a precision of a few centimetres (2-4 parts in 10**9).