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Welcome to XNATMAP

A site for preserving NATMAP's (The Division of National Mapping) history and maintaining contact with the people who were part of that history. As the Australian Landsat Station (ALS), later the Australian Centre for Remote Sensing (ACRES) was part of the Division its history also forms part of this site.


Information on map reading and interpretation, specifically for Natmap medium scale topographic maps, can be found in Natmap’s Topographic Maps : a guide to map reading and Notes on Map Reading.

    Australia’s Contribution to the PAGEOS Project

    By the mid-1960s the geodetic datums of Europe and South America had been connected to North America. Likewise, North Africa had been connected to Europe via Greece. However, while Australia and Papua New Guinea had had the islands to the north and east connected to them, this chain of stations remained isolated from the northern hemisphere.

    Network of BC-4 camera stations

    PAGEOS

    BC-4 camera

    With the launch on 24 June 1966 of PAGEOS (Passive Geodetic Earth Orbiting Satellite), a global geodetic network was established to observe this satellite and establish a uniform geodetic datum. Commencing in 1967, Australia’s contribution to the success of this project was not insignificant and can be viewed via this link.


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