Coordinate Reference Systems
Transform Coordinates
Remarks
Derived at 19 stations, RMS = 12cm. May be used as an approximate transformation to WGS 84 - see code 7894.
Frequently Asked Questions
How do I convert Astro DOS 71 to SHGD2015 coordinates?
Use the coordinate transformation tool above to convert Astro DOS 71 (EPSG:4710) to SHGD2015 (EPSG:7886). Enter your source coordinates and click Transform. This uses the Geocentric translations (geog2D domain) method with 0.15m accuracy.
How do I transform Astro DOS 71 to SHGD2015 using Proj4js?
Use proj4.defs to define both EPSG:4710 and EPSG:7886, then call proj4(source, target, [x, y]) to convert coordinates programmatically.
What is the accuracy of the Astro DOS 71 to SHGD2015 transformation?
This transformation (EPSG:7893) has an accuracy of 0.15m using the Geocentric translations (geog2D domain) method. Area of use: St Helena - St Helena Island.