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Properly referenced geotiff loading in wrong

Question asked by dgiles3 on Jan 31, 2018
Latest reply on Feb 5, 2018 by dgiles3

The geotiff is exported from Pix4d in State Plane NAD83(2011) South Carolina International Feet (as defined by EPSG 6570).  It imports properly into Global Mapper, AutoCAD Civil 3D, Hypack, and Trimble Business Center.  We have found the issue but can not explain why it is happening and thats my question, why?


When you bring it into ArcGIS, its loading it in with a custom coordinate system that is defining the latitude of origin as 31.5.  The problem is, the real latitude of origin is 31.83333333.  So Arc is placing the image to the south by .33333333 degrees.  If you go into the toolbox and define the project to the proper definition for 6570, the geotiff is then displayed properly.


Why is this going on with Arc only?