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What is MGA?

MGA
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What is MGA?

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MGA is a grid coordinate system based on the Universal Transverse Mercator projection and the Geocentric Datum of Australia 1994. The unit of measure is the metre. Because both AMG and MGA are Universal Transverse Mercator projections, the parameters for both grids are identical (zone numbers, zone width, central meridians, central scale factor, false easting & northing), but different elliposids are used. AMG used the Australian National Spheroid (6378160, 298.25) but MGA uses the GRS80 ellipsoid (6378137, 298.257222101).

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