Technical Specification Overview
| Parameter | Standard Value |
|---|---|
| Primary Geodetic Datum | GDA2020 |
| Legacy/Historical Datum | GDA94 / AGD66 |
| Local Grid Projection | MGA2020 |
| Known Datum Shift (vs WGS84) | 1.8 meters |
| National Mapping Authority | Geoscience Australia |
Professional Compliance Warning
Failure to apply correct transformation parameters when converting from WGS84 (GPS) to GDA2020 creates a systematic 1.8 meters offset. In construction and legal surveying, this drift exceeds the allowable error margin for any certified geodetic workflow.
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